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drone-s3-sync
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update for drone 0.5

This commit is contained in:
Nathan LaFreniere 2016-07-21 17:27:25 -07:00
parent 7346a979be
commit 33143ba6c0
140 changed files with 14677 additions and 9906 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
.drone.yml
View File

@ -1,16 +1,11 @@
workspace:
base: /go
path: src/github.com/drone-plugins/drone-s3-sync
pipeline:
build:
image: golang:1.6
environment:
- CGO_ENABLED=0
commands:
- make vet
- make build
- make test
- CGO_ENABLED=0 go build
docker:
repo: plugins/drone-s3-sync

10
Dockerfile
View File

@ -3,13 +3,7 @@
# CGO_ENABLED=0 go build -a -tags netgo
# docker build --rm=true -t plugins/drone-s3-sync .
FROM alpine:3.1
RUN apk update && \
apk add \
ca-certificates \
mailcap && \
rm -rf /var/cache/apk/*
FROM alpine:3.3
RUN apk update && apk add ca-certificates mailcap && rm -rf /var/cache/apk/*
ADD drone-s3-sync /bin/
ENTRYPOINT ["/bin/drone-s3-sync"]

34
Makefile
View File

@ -1,34 +0,0 @@
.PHONY: all clean deps fmt vet test docker
EXECUTABLE ?= drone-s3-sync
IMAGE ?= plugins/$(EXECUTABLE)
COMMIT ?= $(shell git rev-parse --short HEAD)
LDFLAGS = -X "main.buildCommit=$(COMMIT)"
PACKAGES = $(shell go list ./... | grep -v /vendor/)
all: deps build test
clean:
go clean -i ./...
deps:
go get -t ./...
fmt:
go fmt $(PACKAGES)
vet:
go vet $(PACKAGES)
test:
@for PKG in $(PACKAGES); do go test -cover -coverprofile $$GOPATH/src/$$PKG/coverage.out $$PKG || exit 1; done;
docker:
GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags '-s -w $(LDFLAGS)'
docker build --rm -t $(IMAGE) .
$(EXECUTABLE): $(wildcard *.go)
go build -ldflags '-s -w $(LDFLAGS)'
build: $(EXECUTABLE)

122
README.md
View File

@ -1,114 +1,50 @@
# drone-s3-sync
[![Build Status](http://beta.drone.io/api/badges/drone-plugins/drone-s3-sync/status.svg)](http://beta.drone.io/drone-plugins/drone-s3-sync)
[![Coverage Status](https://aircover.co/badges/drone-plugins/drone-s3-sync/coverage.svg)](https://aircover.co/drone-plugins/drone-s3-sync)
[![](https://badge.imagelayers.io/plugins/drone-s3-sync:latest.svg)](https://imagelayers.io/?images=plugins/drone-s3-sync:latest 'Get your own badge on imagelayers.io')
Drone plugin to synchronize a directory with an Amazon S3 Bucket. For the usage information and a listing of the available options please take a look at [the docs](DOCS.md).
## Binary
## Build
Build the binary using `make`:
Build the binary with the following commands:
```
make deps build
```
export GO15VENDOREXPERIMENT=1
export GOOS=linux
export GOARCH=amd64
export CGO_ENABLED=0
### Example
```sh
./drone-s3-sync <<EOF
{
"repo": {
"clone_url": "git://github.com/drone/drone",
"owner": "drone",
"name": "drone",
"full_name": "drone/drone"
},
"system": {
"link_url": "https://beta.drone.io"
},
"build": {
"number": 22,
"status": "success",
"started_at": 1421029603,
"finished_at": 1421029813,
"message": "Update the Readme",
"author": "johnsmith",
"author_email": "john.smith@gmail.com",
"event": "push",
"branch": "master",
"commit": "436b7a6e2abaddfd35740527353e78a227ddcb2c",
"ref": "refs/heads/master"
},
"workspace": {
"root": "/drone/src",
"path": "/drone/src/github.com/drone/drone"
},
"vargs": {
"acl": "public-read",
"region": "us-east-1",
"bucket": "my-bucket.s3-website-us-east-1.amazonaws.com",
"access_key": "970d28f4dd477bc184fbd10b376de753",
"secret_key": "9c5785d3ece6a9cdefa42eb99b58986f9095ff1c",
"source": "folder/to/archive",
"target": "/target/location",
"delete": true,
"cloudfront_distribution_id": "E16G5UJABCDAGDL"
}
}
EOF
go build -a -tags netgo
```
## Docker
Build the container using `make`:
Build the docker image with the following commands:
```
make deps docker
docker build --rm=true -t plugins/s3-sync .
```
### Example
Please note incorrectly building the image, with the wrong OS, architecture, or with CGO enabled will result in an error when running the Docker image:
```sh
docker run -i plugins/drone-s3-sync <<EOF
{
"repo": {
"clone_url": "git://github.com/drone/drone",
"owner": "drone",
"name": "drone",
"full_name": "drone/drone"
},
"system": {
"link_url": "https://beta.drone.io"
},
"build": {
"number": 22,
"status": "success",
"started_at": 1421029603,
"finished_at": 1421029813,
"message": "Update the Readme",
"author": "johnsmith",
"author_email": "john.smith@gmail.com"
"event": "push",
"branch": "master",
"commit": "436b7a6e2abaddfd35740527353e78a227ddcb2c",
"ref": "refs/heads/master"
},
"workspace": {
"root": "/drone/src",
"path": "/drone/src/github.com/drone/drone"
},
"vargs": {
"acl": "public-read",
"region": "us-east-1",
"bucket": "my-bucket.s3-website-us-east-1.amazonaws.com",
"access_key": "970d28f4dd477bc184fbd10b376de753",
"secret_key": "9c5785d3ece6a9cdefa42eb99b58986f9095ff1c",
"source": "folder/to/archive",
"target": "/target/location",
"delete": true
}
}
EOF
```
docker: Error response from daemon: Container command
'/bin/drone-s3-sync' not found or does not exist..
```
## Usage
Build and publish from your current working directory:
```
docker run --rm \
-e PLUGIN_SOURCE=<source> \
-e PLUGIN_TARGET=<target> \
-e PLUGIN_BUCKET=<bucket> \
-e AWS_ACCESS_KEY_ID=<access_key> \
-e AWS_SECRET_ACCESS_KEY=<secret_key> \
-v $(pwd):$(pwd) \
-w $(pwd) \
plugins/s3-sync
```

116
aws.go
View File

@ -13,7 +13,7 @@ import (
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/cloudFront"
"github.com/aws/aws-sdk-go/service/cloudfront"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/ryanuber/go-glob"
)
@ -23,23 +23,24 @@ type AWS struct {
cfClient *cloudfront.CloudFront
remote []string
local []string
vargs PluginArgs
plugin *Plugin
}
func NewAWS(vargs PluginArgs) AWS {
func NewAWS(p *Plugin) AWS {
sess := session.New(&aws.Config{
Credentials: credentials.NewStaticCredentials(vargs.Key, vargs.Secret, ""),
Region: aws.String(vargs.Region),
Credentials: credentials.NewStaticCredentials(p.Key, p.Secret, ""),
Region: aws.String(p.Region),
})
c := s3.New(sess)
cf := cloudfront.New(sess)
r := make([]string, 1, 1)
l := make([]string, 1, 1)
return AWS{c, cf, r, l, vargs}
return AWS{c, cf, r, l, p}
}
func (a *AWS) Upload(local, remote string) error {
p := a.plugin
if local == "" {
return nil
}
@ -52,15 +53,10 @@ func (a *AWS) Upload(local, remote string) error {
defer file.Close()
access := ""
if a.vargs.Access.IsString() {
access = a.vargs.Access.String()
} else if !a.vargs.Access.IsEmpty() {
accessMap := a.vargs.Access.Map()
for pattern := range accessMap {
if match := glob.Glob(pattern, local); match == true {
access = accessMap[pattern]
break
}
for pattern := range p.Access {
if match := glob.Glob(pattern, local); match == true {
access = p.Access[pattern]
break
}
}
@ -69,42 +65,12 @@ func (a *AWS) Upload(local, remote string) error {
}
fileExt := filepath.Ext(local)
var contentType string
if a.vargs.ContentType.IsString() {
contentType = a.vargs.ContentType.String()
} else if !a.vargs.ContentType.IsEmpty() {
contentMap := a.vargs.ContentType.Map()
for patternExt := range contentMap {
if patternExt == fileExt {
contentType = contentMap[patternExt]
break
}
}
}
var contentEncoding string
if a.vargs.ContentEncoding.IsString() {
contentEncoding = a.vargs.ContentEncoding.String()
} else if !a.vargs.ContentEncoding.IsEmpty() {
encodingMap := a.vargs.ContentEncoding.Map()
for patternExt := range encodingMap {
if patternExt == fileExt {
contentEncoding = encodingMap[patternExt]
break
}
}
}
metadata := map[string]*string{}
vmap := a.vargs.Metadata.Map()
if len(vmap) > 0 {
for pattern := range vmap {
if match := glob.Glob(pattern, local); match == true {
for k, v := range vmap[pattern] {
metadata[k] = aws.String(v)
}
break
}
for patternExt := range p.ContentType {
if patternExt == fileExt {
contentType = p.ContentType[patternExt]
break
}
}
@ -112,8 +78,26 @@ func (a *AWS) Upload(local, remote string) error {
contentType = mime.TypeByExtension(fileExt)
}
var contentEncoding string
for patternExt := range p.ContentEncoding {
if patternExt == fileExt {
contentEncoding = p.ContentEncoding[patternExt]
break
}
}
metadata := map[string]*string{}
for pattern := range p.Metadata {
if match := glob.Glob(pattern, local); match == true {
for k, v := range p.Metadata[pattern] {
metadata[k] = aws.String(v)
}
break
}
}
head, err := a.client.HeadObject(&s3.HeadObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
})
if err != nil && err.(awserr.Error).Code() != "404" {
@ -123,7 +107,7 @@ func (a *AWS) Upload(local, remote string) error {
debug("\"%s\" not found in bucket, uploading with Content-Type \"%s\" and permissions \"%s\"", local, contentType, access)
var putObject = &s3.PutObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
Body: file,
ContentType: aws.String(contentType),
@ -131,7 +115,7 @@ func (a *AWS) Upload(local, remote string) error {
Metadata: metadata,
}
if(len(contentEncoding) > 0) {
if len(contentEncoding) > 0 {
putObject.ContentEncoding = aws.String(contentEncoding)
}
@ -185,7 +169,7 @@ func (a *AWS) Upload(local, remote string) error {
if !shouldCopy {
grant, err := a.client.GetObjectAcl(&s3.GetObjectAclInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
})
if err != nil {
@ -223,16 +207,16 @@ func (a *AWS) Upload(local, remote string) error {
debug("Updating metadata for \"%s\" Content-Type: \"%s\", ACL: \"%s\"", local, contentType, access)
var copyObject = &s3.CopyObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
CopySource: aws.String(fmt.Sprintf("%s/%s", a.vargs.Bucket, remote)),
CopySource: aws.String(fmt.Sprintf("%s/%s", p.Bucket, remote)),
ACL: aws.String(access),
ContentType: aws.String(contentType),
Metadata: metadata,
MetadataDirective: aws.String("REPLACE"),
}
if(len(contentEncoding) > 0) {
if len(contentEncoding) > 0 {
copyObject.ContentEncoding = aws.String(contentEncoding)
}
@ -246,7 +230,7 @@ func (a *AWS) Upload(local, remote string) error {
debug("Uploading \"%s\" with Content-Type \"%s\" and permissions \"%s\"", local, contentType, access)
var putObject = &s3.PutObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
Body: file,
ContentType: aws.String(contentType),
@ -254,7 +238,7 @@ func (a *AWS) Upload(local, remote string) error {
Metadata: metadata,
}
if(len(contentEncoding) > 0){
if len(contentEncoding) > 0 {
putObject.ContentEncoding = aws.String(contentEncoding)
}
@ -264,9 +248,10 @@ func (a *AWS) Upload(local, remote string) error {
}
func (a *AWS) Redirect(path, location string) error {
p := a.plugin
debug("Adding redirect from \"%s\" to \"%s\"", path, location)
_, err := a.client.PutObject(&s3.PutObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(path),
ACL: aws.String("public-read"),
WebsiteRedirectLocation: aws.String(location),
@ -275,18 +260,20 @@ func (a *AWS) Redirect(path, location string) error {
}
func (a *AWS) Delete(remote string) error {
p := a.plugin
debug("Removing remote file \"%s\"", remote)
_, err := a.client.DeleteObject(&s3.DeleteObjectInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Key: aws.String(remote),
})
return err
}
func (a *AWS) List(path string) ([]string, error) {
p := a.plugin
remote := make([]string, 1, 1)
resp, err := a.client.ListObjects(&s3.ListObjectsInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Prefix: aws.String(path),
})
if err != nil {
@ -299,7 +286,7 @@ func (a *AWS) List(path string) ([]string, error) {
for *resp.IsTruncated {
resp, err = a.client.ListObjects(&s3.ListObjectsInput{
Bucket: aws.String(a.vargs.Bucket),
Bucket: aws.String(p.Bucket),
Prefix: aws.String(path),
Marker: aws.String(remote[len(remote)-1]),
})
@ -317,9 +304,10 @@ func (a *AWS) List(path string) ([]string, error) {
}
func (a *AWS) Invalidate(invalidatePath string) error {
p := a.plugin
debug("Invalidating \"%s\"", invalidatePath)
_, err := a.cfClient.CreateInvalidation(&cloudfront.CreateInvalidationInput{
DistributionId: aws.String(a.vargs.CloudFrontDistribution),
DistributionId: aws.String(p.CloudFrontDistribution),
InvalidationBatch: &cloudfront.InvalidationBatch{
CallerReference: aws.String(time.Now().Format(time.RFC3339Nano)),
Paths: &cloudfront.Paths{

325
main.go
View File

@ -1,239 +1,118 @@
package main
import (
"errors"
"fmt"
"log"
"os"
"path/filepath"
"strings"
"github.com/drone/drone-go/drone"
"github.com/drone/drone-go/plugin"
"github.com/codegangsta/cli"
_ "github.com/joho/godotenv/autoload"
)
const maxConcurrent = 100
type job struct {
local string
remote string
action string
}
type result struct {
j job
err error
}
type app struct {
vargs *PluginArgs
workspace *drone.Workspace
client AWS
jobs []job
}
var (
buildCommit string
)
var MissingAwsValuesMessage = "Must set access_key, secret_key, and bucket"
var version string // build number set at compile-time
func main() {
fmt.Printf("Drone S3 Sync Plugin built from %s\n", buildCommit)
a := newApp()
err := a.loadVargs()
if err != nil {
fmt.Println(err)
os.Exit(1)
app := cli.NewApp()
app.Name = "s3 sync plugin"
app.Usage = "s3 sync plugin"
app.Action = run
app.Version = version
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "access-key",
Usage: "aws access key",
EnvVar: "PLUGIN_ACCESS_KEY,AWS_ACCESS_KEY_ID",
},
cli.StringFlag{
Name: "secret-key",
Usage: "aws secret key",
EnvVar: "PLUGIN_SECRET_KEY,AWS_SECRET_ACCESS_KEY",
},
cli.StringFlag{
Name: "bucket",
Usage: "name of bucket",
EnvVar: "PLUGIN_BUCKET",
},
cli.StringFlag{
Name: "region",
Usage: "aws region",
Value: "us-east-1",
EnvVar: "PLUGIN_REGION",
},
cli.StringFlag{
Name: "source",
Usage: "upload source path",
Value: ".",
EnvVar: "PLUGIN_SOURCE",
},
cli.StringFlag{
Name: "target",
Usage: "target path",
Value: "/",
EnvVar: "PLUGIN_TARGET",
},
cli.BoolFlag{
Name: "delete",
Usage: "delete locally removed files from the target",
EnvVar: "PLUGIN_DELETE",
},
cli.GenericFlag{
Name: "access",
Usage: "access control settings",
EnvVar: "PLUGIN_ACCESS",
Value: &StringMapFlag{},
},
cli.GenericFlag{
Name: "content-type",
Usage: "content-type settings for uploads",
EnvVar: "PLUGIN_CONTENT_TYPE",
Value: &StringMapFlag{},
},
cli.GenericFlag{
Name: "content-encoding",
Usage: "content-encoding settings for uploads",
EnvVar: "PLUGIN_CONTENT_ENCODING",
Value: &StringMapFlag{},
},
cli.GenericFlag{
Name: "metadata",
Usage: "additional metadata for uploads",
EnvVar: "PLUGIN_METADATA",
Value: &DeepStringMapFlag{},
},
cli.GenericFlag{
Name: "redirects",
Usage: "redirects to create",
EnvVar: "PLUGIN_REDIRECTS",
Value: &MapFlag{},
},
cli.StringFlag{
Name: "cloudfront-distribution",
Usage: "id of cloudfront distribution to invalidate",
EnvVar: "PLUGIN_CLOUDFRONT_DISTRIBUTION",
},
}
err = a.sanitizeInputs()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
a.createClient()
a.createSyncJobs()
a.createInvalidateJob()
a.runJobs()
fmt.Println("done!")
}
func newApp() *app {
return &app{
vargs: &PluginArgs{},
workspace: &drone.Workspace{},
jobs: make([]job, 1, 1),
if err := app.Run(os.Args); err != nil {
log.Fatal(err)
}
}
func (a *app) loadVargs() error {
plugin.Param("vargs", a.vargs)
plugin.Param("workspace", a.workspace)
err := plugin.Parse()
return err
func run(c *cli.Context) error {
plugin := Plugin{
Key: c.String("access-key"),
Secret: c.String("secret-key"),
Bucket: c.String("bucket"),
Region: c.String("region"),
Source: c.String("source"),
Target: c.String("target"),
Delete: c.Bool("delete"),
Access: c.Generic("access").(*StringMapFlag).Get(),
ContentType: c.Generic("content-type").(*StringMapFlag).Get(),
ContentEncoding: c.Generic("content-encoding").(*StringMapFlag).Get(),
Metadata: c.Generic("metadata").(*DeepStringMapFlag).Get(),
Redirects: c.Generic("redirects").(*MapFlag).Get(),
CloudFrontDistribution: c.String("cloudfront-distribution"),
}
}
func (a *app) createClient() {
a.client = NewAWS(*a.vargs)
}
func (a *app) sanitizeInputs() error {
vargs := a.vargs
workspace := a.workspace
if len(a.vargs.Key) == 0 || len(a.vargs.Secret) == 0 || len(a.vargs.Bucket) == 0 {
return errors.New(MissingAwsValuesMessage)
}
if len(vargs.Region) == 0 {
vargs.Region = "us-east-1"
}
if len(vargs.Source) == 0 {
vargs.Source = "."
}
vargs.Source = filepath.Join(workspace.Path, vargs.Source)
if strings.HasPrefix(vargs.Target, "/") {
vargs.Target = vargs.Target[1:]
}
return nil
}
func (a *app) createSyncJobs() {
vargs := a.vargs
remote, err := a.client.List(vargs.Target)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
local := make([]string, 1, 1)
err = filepath.Walk(vargs.Source, func(path string, info os.FileInfo, err error) error {
if err != nil || info.IsDir() {
return err
}
localPath := path
if vargs.Source != "." {
localPath = strings.TrimPrefix(path, vargs.Source)
if strings.HasPrefix(localPath, "/") {
localPath = localPath[1:]
}
}
local = append(local, localPath)
a.jobs = append(a.jobs, job{
local: filepath.Join(vargs.Source, localPath),
remote: filepath.Join(vargs.Target, localPath),
action: "upload",
})
return nil
})
if err != nil {
fmt.Println(err)
os.Exit(1)
}
for path, location := range vargs.Redirects {
path = strings.TrimPrefix(path, "/")
local = append(local, path)
a.jobs = append(a.jobs, job{
local: path,
remote: location,
action: "redirect",
})
}
if a.vargs.Delete {
for _, r := range remote {
found := false
for _, l := range local {
if l == r {
found = true
break
}
}
if !found {
a.jobs = append(a.jobs, job{
local: "",
remote: r,
action: "delete",
})
}
}
}
}
func (a *app) createInvalidateJob() {
if len(a.vargs.CloudFrontDistribution) > 0 {
a.jobs = append(a.jobs, job{
local: "",
remote: filepath.Join("/", a.vargs.Target, "*"),
action: "invalidateCloudFront",
})
}
}
func (a *app) runJobs() {
vargs := a.vargs
client := a.client
jobChan := make(chan struct{}, maxConcurrent)
results := make(chan *result, len(a.jobs))
var invalidateJob *job
fmt.Printf("Synchronizing with bucket \"%s\"\n", vargs.Bucket)
for _, j := range a.jobs {
jobChan <- struct{}{}
go func(j job) {
var err error
if j.action == "upload" {
err = client.Upload(j.local, j.remote)
} else if j.action == "redirect" {
err = client.Redirect(j.local, j.remote)
} else if j.action == "delete" {
err = client.Delete(j.remote)
} else if j.action == "invalidateCloudFront" {
invalidateJob = &j
// err = client.Invalidate(j.remote)
} else {
err = nil
}
results <- &result{j, err}
<-jobChan
}(j)
}
for _ = range a.jobs {
r := <-results
if r.err != nil {
fmt.Printf("ERROR: failed to %s %s to %s: %+v\n", r.j.action, r.j.local, r.j.remote, r.err)
os.Exit(1)
}
}
if invalidateJob != nil {
err := client.Invalidate(invalidateJob.remote)
if err != nil {
fmt.Printf("ERROR: failed to %s %s to %s: %+v\n", invalidateJob.action, invalidateJob.local, invalidateJob.remote, err)
os.Exit(1)
}
}
}
func debug(format string, args ...interface{}) {
if os.Getenv("DEBUG") != "" {
fmt.Printf(format+"\n", args...)
} else {
fmt.Printf(".")
}
return plugin.Exec()
}

41
main_test.go
View File

@ -1,41 +0,0 @@
package main
import (
"testing"
"github.com/stretchr/testify/assert"
)
func newAppWithAwsVars() *app {
a := newApp()
a.vargs.Key = "AAAA"
a.vargs.Secret = "AAAA"
a.vargs.Bucket = "AAAA"
return a
}
func TestSanitizeInputs(t *testing.T) {
a := newApp()
err := a.sanitizeInputs()
assert.EqualError(t, err, MissingAwsValuesMessage)
a = newAppWithAwsVars()
a.workspace.Path = "foo/bar"
a.vargs.Target = "/remote/foo"
a.sanitizeInputs()
assert.EqualValues(t, "foo/bar", a.vargs.Source, "Source should default to workspace.Path")
assert.EqualValues(t, "us-east-1", a.vargs.Region, "Region should default to 'us-east'")
assert.EqualValues(t, "remote/foo", a.vargs.Target, "Target should have first slash stripped")
a = newAppWithAwsVars()
a.workspace.Path = "foo/bar"
a.vargs.Source = "some/folder"
a.vargs.Target = "remote/foo"
a.sanitizeInputs()
assert.EqualValues(t, "foo/bar/some/folder", a.vargs.Source, "Source should combine workspace.Path and specified Source")
assert.EqualValues(t, "remote/foo", a.vargs.Target, "Target should have first slash stripped")
}

203
plugin.go Normal file
View File

@ -0,0 +1,203 @@
package main
import (
"errors"
"fmt"
"os"
"path/filepath"
"strings"
)
type Plugin struct {
Key string
Secret string
Bucket string
Region string
Source string
Target string
Delete bool
Access map[string]string
ContentType map[string]string
ContentEncoding map[string]string
Metadata map[string]map[string]string
Redirects map[string]string
CloudFrontDistribution string
client AWS
jobs []job
}
const maxConcurrent = 100
type job struct {
local string
remote string
action string
}
type result struct {
j job
err error
}
var MissingAwsValuesMessage = "Must set access_key, secret_key, and bucket"
func (p *Plugin) Exec() error {
err := p.sanitizeInputs()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
p.jobs = make([]job, 1, 1)
p.client = NewAWS(p)
p.createSyncJobs()
p.createInvalidateJob()
p.runJobs()
return nil
}
func (p *Plugin) sanitizeInputs() error {
if len(p.Key) == 0 || len(p.Secret) == 0 || len(p.Bucket) == 0 {
return errors.New(MissingAwsValuesMessage)
}
wd, err := os.Getwd()
if err != nil {
return err
}
p.Source = filepath.Join(wd, p.Source)
if strings.HasPrefix(p.Target, "/") {
p.Target = p.Target[1:]
}
return nil
}
func (p *Plugin) createSyncJobs() {
remote, err := p.client.List(p.Target)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
local := make([]string, 1, 1)
err = filepath.Walk(p.Source, func(path string, info os.FileInfo, err error) error {
if err != nil || info.IsDir() {
return err
}
localPath := path
if p.Source != "." {
localPath = strings.TrimPrefix(path, p.Source)
if strings.HasPrefix(localPath, "/") {
localPath = localPath[1:]
}
}
local = append(local, localPath)
p.jobs = append(p.jobs, job{
local: filepath.Join(p.Source, localPath),
remote: filepath.Join(p.Target, localPath),
action: "upload",
})
return nil
})
if err != nil {
fmt.Println(err)
os.Exit(1)
}
for path, location := range p.Redirects {
path = strings.TrimPrefix(path, "/")
local = append(local, path)
p.jobs = append(p.jobs, job{
local: path,
remote: location,
action: "redirect",
})
}
if p.Delete {
for _, r := range remote {
found := false
for _, l := range local {
if l == r {
found = true
break
}
}
if !found {
p.jobs = append(p.jobs, job{
local: "",
remote: r,
action: "delete",
})
}
}
}
}
func (p *Plugin) createInvalidateJob() {
if len(p.CloudFrontDistribution) > 0 {
p.jobs = append(p.jobs, job{
local: "",
remote: filepath.Join("/", p.Target, "*"),
action: "invalidateCloudFront",
})
}
}
func (p *Plugin) runJobs() {
client := p.client
jobChan := make(chan struct{}, maxConcurrent)
results := make(chan *result, len(p.jobs))
var invalidateJob *job
fmt.Printf("Synchronizing with bucket \"%s\"\n", p.Bucket)
for _, j := range p.jobs {
jobChan <- struct{}{}
go func(j job) {
var err error
if j.action == "upload" {
err = client.Upload(j.local, j.remote)
} else if j.action == "redirect" {
err = client.Redirect(j.local, j.remote)
} else if j.action == "delete" {
err = client.Delete(j.remote)
} else if j.action == "invalidateCloudFront" {
invalidateJob = &j
} else {
err = nil
}
results <- &result{j, err}
<-jobChan
}(j)
}
for _ = range p.jobs {
r := <-results
if r.err != nil {
fmt.Printf("ERROR: failed to %s %s to %s: %+v\n", r.j.action, r.j.local, r.j.remote, r.err)
os.Exit(1)
}
}
if invalidateJob != nil {
err := client.Invalidate(invalidateJob.remote)
if err != nil {
fmt.Printf("ERROR: failed to %s %s to %s: %+v\n", invalidateJob.action, invalidateJob.local, invalidateJob.remote, err)
os.Exit(1)
}
}
}
func debug(format string, args ...interface{}) {
if os.Getenv("DEBUG") != "" {
fmt.Printf(format+"\n", args...)
} else {
fmt.Printf(".")
}
}

109
types.go
View File

@ -2,99 +2,68 @@ package main
import "encoding/json"
type PluginArgs struct {
Key string `json:"access_key"`
Secret string `json:"secret_key"`
Bucket string `json:"bucket"`
Region string `json:"region"`
Source string `json:"source"`
Target string `json:"target"`
Delete bool `json:"delete"`
Access StringMap `json:"acl"`
ContentType StringMap `json:"content_type"`
ContentEncoding StringMap `json:"content_encoding"`
Metadata DeepStringMap `json:"metadata"`
Redirects map[string]string `json:"redirects"`
CloudFrontDistribution string `json:"cloudfront_distribution_id"`
}
type DeepStringMap struct {
type DeepStringMapFlag struct {
parts map[string]map[string]string
}
func (e *DeepStringMap) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
func (d *DeepStringMapFlag) String() string {
return ""
}
p := map[string]map[string]string{}
if err := json.Unmarshal(b, &p); err != nil {
s := map[string]string{}
if err := json.Unmarshal(b, &s); err != nil {
func (d *DeepStringMapFlag) Get() map[string]map[string]string {
return d.parts
}
func (d *DeepStringMapFlag) Set(value string) error {
d.parts = map[string]map[string]string{}
err := json.Unmarshal([]byte(value), &d.parts)
if err != nil {
single := map[string]string{}
err := json.Unmarshal([]byte(value), &single)
if err != nil {
return err
}
p["*"] = s
d.parts["*"] = single
}
e.parts = p
return nil
}
func (e *DeepStringMap) Map() map[string]map[string]string {
return e.parts
}
type StringMap struct {
type StringMapFlag struct {
parts map[string]string
}
func (e *StringMap) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
func (s *StringMapFlag) String() string {
return ""
}
p := map[string]string{}
if err := json.Unmarshal(b, &p); err != nil {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
p["_string_"] = s
}
func (s *StringMapFlag) Get() map[string]string {
return s.parts
}
e.parts = p
func (s *StringMapFlag) Set(value string) error {
s.parts = map[string]string{}
err := json.Unmarshal([]byte(value), &s.parts)
if err != nil {
s.parts["*"] = value
}
return nil
}
func (e *StringMap) IsEmpty() bool {
if e == nil || len(e.parts) == 0 {
return true
}
return false
type MapFlag struct {
parts map[string]string
}
func (e *StringMap) IsString() bool {
if e.IsEmpty() || len(e.parts) != 1 {
return false
}
_, ok := e.parts["_string_"]
return ok
func (m *MapFlag) String() string {
return ""
}
func (e *StringMap) String() string {
if e.IsEmpty() || !e.IsString() {
return ""
}
return e.parts["_string_"]
func (m *MapFlag) Get() map[string]string {
return m.parts
}
func (e *StringMap) Map() map[string]string {
if e.IsEmpty() || e.IsString() {
return map[string]string{}
}
return e.parts
func (m *MapFlag) Set(value string) error {
m.parts = map[string]string{}
return json.Unmarshal([]byte(value), &m.parts)
}

6
vendor/github.com/aws/aws-sdk-go/Gemfile generated vendored Normal file
View File

@ -0,0 +1,6 @@
source 'https://rubygems.org'
gem 'yard', git: 'git://github.com/lsegal/yard', ref: '5025564a491e1b7c6192632cba2802202ca08449'
gem 'yard-go', git: 'git://github.com/jasdel/yard-go', ref: 'e78e1ef7cdf5e0f3266845b26bb4fd64f1dd6f85'
gem 'rdiscount'

152
vendor/github.com/aws/aws-sdk-go/Makefile generated vendored Normal file
View File

@ -0,0 +1,152 @@
LINTIGNOREDOT='awstesting/integration.+should not use dot imports'
LINTIGNOREDOC='service/[^/]+/(api|service|waiters)\.go:.+(comment on exported|should have comment or be unexported)'
LINTIGNORECONST='service/[^/]+/(api|service|waiters)\.go:.+(type|struct field|const|func) ([^ ]+) should be ([^ ]+)'
LINTIGNORESTUTTER='service/[^/]+/(api|service)\.go:.+(and that stutters)'
LINTIGNOREINFLECT='service/[^/]+/(api|service)\.go:.+method .+ should be '
LINTIGNOREINFLECTS3UPLOAD='service/s3/s3manager/upload\.go:.+struct field SSEKMSKeyId should be '
LINTIGNOREDEPS='vendor/.+\.go'
SDK_WITH_VENDOR_PKGS=$(shell go list ./... | grep -v "/vendor/src")
SDK_ONLY_PKGS=$(shell go list ./... | grep -v "/vendor/")
SDK_GO_1_4=$(shell go version | grep "go1.4")
SDK_GO_VERSION=$(shell go version | awk '''{print $$3}''' | tr -d '''\n''')
all: get-deps generate unit
help:
@echo "Please use \`make <target>' where <target> is one of"
@echo " api_info to print a list of services and versions"
@echo " docs to build SDK documentation"
@echo " build to go build the SDK"
@echo " unit to run unit tests"
@echo " integration to run integration tests"
@echo " performance to run performance tests"
@echo " verify to verify tests"
@echo " lint to lint the SDK"
@echo " vet to vet the SDK"
@echo " generate to go generate and make services"
@echo " gen-test to generate protocol tests"
@echo " gen-services to generate services"
@echo " get-deps to go get the SDK dependencies"
@echo " get-deps-tests to get the SDK's test dependencies"
@echo " get-deps-verify to get the SDK's verification dependencies"
generate: gen-test gen-endpoints gen-services
gen-test: gen-protocol-test
gen-services:
go generate ./service
gen-protocol-test:
go generate ./private/protocol/...
gen-endpoints:
go generate ./private/endpoints
build:
@echo "go build SDK and vendor packages"
@go build ${SDK_ONLY_PKGS}
unit: get-deps-tests build verify
@echo "go test SDK and vendor packages"
@go test -tags $(SDK_ONLY_PKGS)
unit-with-race-cover: get-deps-tests build verify
@echo "go test SDK and vendor packages"
@go test -tags -race -cpu=1,2,4 $(SDK_ONLY_PKGS)
integration: get-deps-tests integ-custom smoke-tests performance
integ-custom:
go test -tags "integration" ./awstesting/integration/customizations/...
smoke-tests: get-deps-tests
gucumber -go-tags "integration" ./awstesting/integration/smoke
performance: get-deps-tests
AWS_TESTING_LOG_RESULTS=${log-detailed} AWS_TESTING_REGION=$(region) AWS_TESTING_DB_TABLE=$(table) gucumber -go-tags "integration" ./awstesting/performance
sandbox-tests: sandbox-test-go14 sandbox-test-go15 sandbox-test-go15-novendorexp sandbox-test-go16 sandbox-test-go17 sandbox-test-gotip
sandbox-test-go14:
docker build -f ./awstesting/sandbox/Dockerfile.test.go1.4 -t "aws-sdk-go-1.4" .
docker run -t aws-sdk-go-1.4
sandbox-test-go15:
docker build -f ./awstesting/sandbox/Dockerfile.test.go1.5 -t "aws-sdk-go-1.5" .
docker run -t aws-sdk-go-1.5
sandbox-test-go15-novendorexp:
docker build -f ./awstesting/sandbox/Dockerfile.test.go1.5-novendorexp -t "aws-sdk-go-1.5-novendorexp" .
docker run -t aws-sdk-go-1.5-novendorexp
sandbox-test-go16:
docker build -f ./awstesting/sandbox/Dockerfile.test.go1.6 -t "aws-sdk-go-1.6" .
docker run -t aws-sdk-go-1.6
sandbox-test-go17:
docker build -f ./awstesting/sandbox/Dockerfile.test.go1.7 -t "aws-sdk-go-1.7" .
docker run -t aws-sdk-go-1.7
sandbox-test-gotip:
@echo "Run make update-aws-golang-tip, if this test fails because missing aws-golang:tip container"
docker build -f ./awstesting/sandbox/Dockerfile.test.gotip -t "aws-sdk-go-tip" .
docker run -t aws-sdk-go-tip
update-aws-golang-tip:
docker build -f ./awstesting/sandbox/Dockerfile.golang-tip -t "aws-golang:tip" .
verify: get-deps-verify lint vet
lint:
@echo "go lint SDK and vendor packages"
@lint=`if [ -z "${SDK_GO_1_4}" ]; then golint ./...; else echo "skipping golint"; fi`; \
lint=`echo "$$lint" | grep -E -v -e ${LINTIGNOREDOT} -e ${LINTIGNOREDOC} -e ${LINTIGNORECONST} -e ${LINTIGNORESTUTTER} -e ${LINTIGNOREINFLECT} -e ${LINTIGNOREDEPS} -e ${LINTIGNOREINFLECTS3UPLOAD}`; \
echo "$$lint"; \
if [ "$$lint" != "" ] && [ "$$lint" != "skipping golint" ]; then exit 1; fi
SDK_BASE_FOLDERS=$(shell ls -d */ | grep -v vendor | grep -v awsmigrate)
ifneq (,$(findstring go1.5, ${SDK_GO_VERSION}))
GO_VET_CMD=go tool vet --all -shadow
else ifneq (,$(findstring go1.6, ${SDK_GO_VERSION}))
GO_VET_CMD=go tool vet --all -shadow -example=false
else ifneq (,$(findstring devel, ${SDK_GO_VERSION}))
GO_VET_CMD=go tool vet --all -shadow -tests=false
else
GO_VET_CMD=echo skipping go vet, ${SDK_GO_VERSION}
endif
vet:
${GO_VET_CMD} ${SDK_BASE_FOLDERS}
get-deps: get-deps-tests get-deps-verify
@echo "go get SDK dependencies"
@go get -v $(SDK_ONLY_PKGS)
get-deps-tests:
@echo "go get SDK testing dependencies"
go get github.com/lsegal/gucumber/cmd/gucumber
go get github.com/stretchr/testify
go get github.com/smartystreets/goconvey
get-deps-verify:
@echo "go get SDK verification utilities"
@if [ -z "${SDK_GO_1_4}" ]; then go get github.com/golang/lint/golint; else echo "skipped getting golint"; fi
bench:
@echo "go bench SDK packages"
@go test -run NONE -bench . -benchmem -tags 'bench' $(SDK_ONLY_PKGS)
bench-protocol:
@echo "go bench SDK protocol marshallers"
@go test -run NONE -bench . -benchmem -tags 'bench' ./private/protocol/...
docs:
@echo "generate SDK docs"
rm -rf doc && bundle install && bundle exec yard
@# This env variable, DOCS, is for internal use
@if [ -n "$(AWS_DOC_GEN_TOOL)" ]; then echo "For internal use. Subject to change."; $(AWS_DOC_GEN_TOOL) `pwd`; fi
api_info:
@go run private/model/cli/api-info/api-info.go

116
vendor/github.com/aws/aws-sdk-go/README.md generated vendored Normal file
View File

@ -0,0 +1,116 @@
# AWS SDK for Go
<span style="display: inline-block;">
[![API Reference](http://img.shields.io/badge/api-reference-blue.svg)](http://docs.aws.amazon.com/sdk-for-go/api)
[![Join the chat at https://gitter.im/aws/aws-sdk-go](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/aws/aws-sdk-go?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[![Build Status](https://img.shields.io/travis/aws/aws-sdk-go.svg)](https://travis-ci.org/aws/aws-sdk-go)
[![Apache V2 License](http://img.shields.io/badge/license-Apache%20V2-blue.svg)](https://github.com/aws/aws-sdk-go/blob/master/LICENSE.txt)
</span>
aws-sdk-go is the official AWS SDK for the Go programming language.
Checkout our [release notes](https://github.com/aws/aws-sdk-go/releases) for information about the latest bug fixes, updates, and features added to the SDK.
## Installing
If you are using Go 1.5 with the `GO15VENDOREXPERIMENT=1` vendoring flag, or 1.6 and higher you can use the following command to retrieve the SDK. The SDK's non-testing dependencies will be included and are vendored in the `vendor` folder.
go get -u github.com/aws/aws-sdk-go
Otherwise if your Go environment does not have vendoring support enabled, or you do not want to include the vendored SDK's dependencies you can use the following command to retrieve the SDK and its non-testing dependencies using `go get`.
go get -u github.com/aws/aws-sdk-go/aws/...
go get -u github.com/aws/aws-sdk-go/service/...
If you're looking to retrieve just the SDK without any dependencies use the following command.
go get -d github.com/aws/aws-sdk-go/
These two processes will still include the `vendor` folder and it should be deleted if its not going to be used by your environment.
rm -rf $GOPATH/src/github.com/aws/aws-sdk-go/vendor
## Reference Documentation
[`Getting Started Guide`](https://aws.amazon.com/sdk-for-go/) - This document is a general introduction how to configure and make requests with the SDK. If this is your first time using the SDK, this documentation and the API documentation will help you get started. This document focuses on the syntax and behavior of the SDK. The [Service Developer Guide](https://aws.amazon.com/documentation/) will help you get started using specific AWS services.
[`SDK API Reference Documentation`](https://docs.aws.amazon.com/sdk-for-go/api/) - Use this document to look up all API operation input and output parameters for AWS services supported by the SDK. The API reference also includes documentation of the SDK, and examples how to using the SDK, service client API operations, and API operation require parameters.
[`Service Developer Guide`](https://aws.amazon.com/documentation/) - Use this documentation to learn how to interface with an AWS service. These are great guides both, if you're getting started with a service, or looking for more information on a service. You should not need this document for coding, though in some cases, services may supply helpful samples that you might want to look out for.
[`SDK Examples`](https://github.com/aws/aws-sdk-go/tree/master/example) - Included in the SDK's repo are a several hand crafted examples using the SDK features and AWS services.
## Configuring Credentials
Before using the SDK, ensure that you've configured credentials. The best
way to configure credentials on a development machine is to use the
`~/.aws/credentials` file, which might look like:
```
[default]
aws_access_key_id = AKID1234567890
aws_secret_access_key = MY-SECRET-KEY
```
You can learn more about the credentials file from this
[blog post](http://blogs.aws.amazon.com/security/post/Tx3D6U6WSFGOK2H/A-New-and-Standardized-Way-to-Manage-Credentials-in-the-AWS-SDKs).
Alternatively, you can set the following environment variables:
```
AWS_ACCESS_KEY_ID=AKID1234567890
AWS_SECRET_ACCESS_KEY=MY-SECRET-KEY
```
### AWS CLI config file (`~/.aws/config`)
The AWS SDK for Go does not support the AWS CLI's config file. The SDK will not use any contents from this file. The SDK only supports the shared credentials file (`~/.aws/credentials`). #384 tracks this feature request discussion.
## Using the Go SDK
To use a service in the SDK, create a service variable by calling the `New()`
function. Once you have a service client, you can call API operations which each
return response data and a possible error.
To list a set of instance IDs from EC2, you could run:
```go
package main
import (
"fmt"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
)
func main() {
// Create an EC2 service object in the "us-west-2" region
// Note that you can also configure your region globally by
// exporting the AWS_REGION environment variable
svc := ec2.New(session.New(), &aws.Config{Region: aws.String("us-west-2")})
// Call the DescribeInstances Operation
resp, err := svc.DescribeInstances(nil)
if err != nil {
panic(err)
}
// resp has all of the response data, pull out instance IDs:
fmt.Println("> Number of reservation sets: ", len(resp.Reservations))
for idx, res := range resp.Reservations {
fmt.Println(" > Number of instances: ", len(res.Instances))
for _, inst := range resp.Reservations[idx].Instances {
fmt.Println(" - Instance ID: ", *inst.InstanceId)
}
}
}
```
You can find more information and operations in our
[API documentation](http://docs.aws.amazon.com/sdk-for-go/api/).
## License
This SDK is distributed under the
[Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0),
see LICENSE.txt and NOTICE.txt for more information.

46
vendor/github.com/aws/aws-sdk-go/aws/awserr/error.go generated vendored
View File

@ -14,13 +14,13 @@ package awserr
// if err != nil {
// if awsErr, ok := err.(awserr.Error); ok {
// // Get error details
// log.Println("Error:", err.Code(), err.Message())
// log.Println("Error:", awsErr.Code(), awsErr.Message())
//
// // Prints out full error message, including original error if there was one.
// log.Println("Error:", err.Error())
// log.Println("Error:", awsErr.Error())
//
// // Get original error
// if origErr := err.Err(); origErr != nil {
// if origErr := awsErr.OrigErr(); origErr != nil {
// // operate on original error.
// }
// } else {
@ -42,9 +42,12 @@ type Error interface {
OrigErr() error
}
// BatchError is a batch of errors which also wraps lower level errors with code, message,
// and original errors. Calling Error() will only return the error that is at the end
// of the list.
// BatchError is a batch of errors which also wraps lower level errors with
// code, message, and original errors. Calling Error() will include all errors
// that occured in the batch.
//
// Deprecated: Replaced with BatchedErrors. Only defined for backwards
// compatibility.
type BatchError interface {
// Satisfy the generic error interface.
error
@ -59,20 +62,35 @@ type BatchError interface {
OrigErrs() []error
}
// BatchedErrors is a batch of errors which also wraps lower level errors with
// code, message, and original errors. Calling Error() will include all errors
// that occured in the batch.
//
// Replaces BatchError
type BatchedErrors interface {
// Satisfy the base Error interface.
Error
// Returns the original error if one was set. Nil is returned if not set.
OrigErrs() []error
}
// New returns an Error object described by the code, message, and origErr.
//
// If origErr satisfies the Error interface it will not be wrapped within a new
// Error object and will instead be returned.
func New(code, message string, origErr error) Error {
if e, ok := origErr.(Error); ok && e != nil {
return e
var errs []error
if origErr != nil {
errs = append(errs, origErr)
}
return newBaseError(code, message, origErr)
return newBaseError(code, message, errs)
}
// NewBatchError returns an baseError with an expectation of an array of errors
func NewBatchError(code, message string, errs []error) BatchError {
return newBaseErrors(code, message, errs)
// NewBatchError returns an BatchedErrors with a collection of errors as an
// array of errors.
func NewBatchError(code, message string, errs []error) BatchedErrors {
return newBaseError(code, message, errs)
}
// A RequestFailure is an interface to extract request failure information from
@ -85,9 +103,9 @@ func NewBatchError(code, message string, errs []error) BatchError {
// output, err := s3manage.Upload(svc, input, opts)
// if err != nil {
// if reqerr, ok := err.(RequestFailure); ok {
// log.Printf("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID())
// log.Println("Request failed", reqerr.Code(), reqerr.Message(), reqerr.RequestID())
// } else {
// log.Printf("Error:", err.Error()
// log.Println("Error:", err.Error())
// }
// }
//

67
vendor/github.com/aws/aws-sdk-go/aws/awserr/types.go generated vendored
View File

@ -34,36 +34,17 @@ type baseError struct {
errs []error
}
// newBaseError returns an error object for the code, message, and err.
// newBaseError returns an error object for the code, message, and errors.
//
// code is a short no whitespace phrase depicting the classification of
// the error that is being created.
//
// message is the free flow string containing detailed information about the error.
// message is the free flow string containing detailed information about the
// error.
//
// origErr is the error object which will be nested under the new error to be returned.
func newBaseError(code, message string, origErr error) *baseError {
b := &baseError{
code: code,
message: message,
}
if origErr != nil {
b.errs = append(b.errs, origErr)
}
return b
}
// newBaseErrors returns an error object for the code, message, and errors.
//
// code is a short no whitespace phrase depicting the classification of
// the error that is being created.
//
// message is the free flow string containing detailed information about the error.
//
// origErrs is the error objects which will be nested under the new errors to be returned.
func newBaseErrors(code, message string, origErrs []error) *baseError {
// origErrs is the error objects which will be nested under the new errors to
// be returned.
func newBaseError(code, message string, origErrs []error) *baseError {
b := &baseError{
code: code,
message: message,
@ -103,19 +84,26 @@ func (b baseError) Message() string {
return b.message
}
// OrigErr returns the original error if one was set. Nil is returned if no error
// was set. This only returns the first element in the list. If the full list is
// needed, use BatchError
// OrigErr returns the original error if one was set. Nil is returned if no
// error was set. This only returns the first element in the list. If the full
// list is needed, use BatchedErrors.
func (b baseError) OrigErr() error {
if size := len(b.errs); size > 0 {
switch len(b.errs) {
case 0:
return nil
case 1:
return b.errs[0]
default:
if err, ok := b.errs[0].(Error); ok {
return NewBatchError(err.Code(), err.Message(), b.errs[1:])
}
return NewBatchError("BatchedErrors",
"multiple errors occured", b.errs)
}
return nil
}
// OrigErrs returns the original errors if one was set. An empty slice is returned if
// no error was set:w
// OrigErrs returns the original errors if one was set. An empty slice is
// returned if no error was set.
func (b baseError) OrigErrs() []error {
return b.errs
}
@ -133,8 +121,8 @@ type requestError struct {
requestID string
}
// newRequestError returns a wrapped error with additional information for request
// status code, and service requestID.
// newRequestError returns a wrapped error with additional information for
// request status code, and service requestID.
//
// Should be used to wrap all request which involve service requests. Even if
// the request failed without a service response, but had an HTTP status code
@ -173,6 +161,15 @@ func (r requestError) RequestID() string {
return r.requestID
}
// OrigErrs returns the original errors if one was set. An empty slice is
// returned if no error was set.
func (r requestError) OrigErrs() []error {
if b, ok := r.awsError.(BatchedErrors); ok {
return b.OrigErrs()
}
return []error{r.OrigErr()}
}
// An error list that satisfies the golang interface
type errorList []error

4
vendor/github.com/aws/aws-sdk-go/aws/awsutil/prettify.go generated vendored
View File

@ -91,6 +91,10 @@ func prettify(v reflect.Value, indent int, buf *bytes.Buffer) {
buf.WriteString("\n" + strings.Repeat(" ", indent) + "}")
default:
if !v.IsValid() {
fmt.Fprint(buf, "<invalid value>")
return
}
format := "%v"
switch v.Interface().(type) {
case string:

53
vendor/github.com/aws/aws-sdk-go/aws/client/default_retryer.go generated vendored
View File

@ -1,8 +1,8 @@
package client
import (
"math"
"math/rand"
"sync"
"time"
"github.com/aws/aws-sdk-go/aws/request"
@ -30,16 +30,61 @@ func (d DefaultRetryer) MaxRetries() int {
return d.NumMaxRetries
}
var seededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})
// RetryRules returns the delay duration before retrying this request again
func (d DefaultRetryer) RetryRules(r *request.Request) time.Duration {
delay := int(math.Pow(2, float64(r.RetryCount))) * (rand.Intn(30) + 30)
// Set the upper limit of delay in retrying at ~five minutes
minTime := 30
throttle := d.shouldThrottle(r)
if throttle {
minTime = 500
}
retryCount := r.RetryCount
if retryCount > 13 {
retryCount = 13
} else if throttle && retryCount > 8 {
retryCount = 8
}
delay := (1 << uint(retryCount)) * (seededRand.Intn(minTime) + minTime)
return time.Duration(delay) * time.Millisecond
}
// ShouldRetry returns if the request should be retried.
// ShouldRetry returns true if the request should be retried.
func (d DefaultRetryer) ShouldRetry(r *request.Request) bool {
if r.HTTPResponse.StatusCode >= 500 {
return true
}
return r.IsErrorRetryable()
return r.IsErrorRetryable() || d.shouldThrottle(r)
}
// ShouldThrottle returns true if the request should be throttled.
func (d DefaultRetryer) shouldThrottle(r *request.Request) bool {
if r.HTTPResponse.StatusCode == 502 ||
r.HTTPResponse.StatusCode == 503 ||
r.HTTPResponse.StatusCode == 504 {
return true
}
return r.IsErrorThrottle()
}
// lockedSource is a thread-safe implementation of rand.Source
type lockedSource struct {
lk sync.Mutex
src rand.Source
}
func (r *lockedSource) Int63() (n int64) {
r.lk.Lock()
n = r.src.Int63()
r.lk.Unlock()
return
}
func (r *lockedSource) Seed(seed int64) {
r.lk.Lock()
r.src.Seed(seed)
r.lk.Unlock()
}

54
vendor/github.com/aws/aws-sdk-go/aws/config.go generated vendored
View File

@ -100,6 +100,31 @@ type Config struct {
// Amazon S3: Virtual Hosting of Buckets
S3ForcePathStyle *bool
// Set this to `true` to disable the SDK adding the `Expect: 100-Continue`
// header to PUT requests over 2MB of content. 100-Continue instructs the
// HTTP client not to send the body until the service responds with a
// `continue` status. This is useful to prevent sending the request body
// until after the request is authenticated, and validated.
//
// http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html
//
// 100-Continue is only enabled for Go 1.6 and above. See `http.Transport`'s
// `ExpectContinueTimeout` for information on adjusting the continue wait timeout.
// https://golang.org/pkg/net/http/#Transport
//
// You should use this flag to disble 100-Continue if you experiance issues
// with proxies or thrid party S3 compatible services.
S3Disable100Continue *bool
// Set this to `true` to enable S3 Accelerate feature. For all operations compatible
// with S3 Accelerate will use the accelerate endpoint for requests. Requests not compatible
// will fall back to normal S3 requests.
//
// The bucket must be enable for accelerate to be used with S3 client with accelerate
// enabled. If the bucket is not enabled for accelerate an error will be returned.
// The bucket name must be DNS compatible to also work with accelerate.
S3UseAccelerate *bool
// Set this to `true` to disable the EC2Metadata client from overriding the
// default http.Client's Timeout. This is helpful if you do not want the EC2Metadata
// client to create a new http.Client. This options is only meaningful if you're not
@ -114,13 +139,18 @@ type Config struct {
//
EC2MetadataDisableTimeoutOverride *bool
// SleepDelay is an override for the func the SDK will call when sleeping
// during the lifecycle of a request. Specifically this will be used for
// request delays. This value should only be used for testing. To adjust
// the delay of a request see the aws/client.DefaultRetryer and
// aws/request.Retryer.
SleepDelay func(time.Duration)
}
// NewConfig returns a new Config pointer that can be chained with builder methods to
// set multiple configuration values inline without using pointers.
//
// svc := s3.New(aws.NewConfig().WithRegion("us-west-2").WithMaxRetries(10))
// sess := session.New(aws.NewConfig().WithRegion("us-west-2").WithMaxRetries(10))
//
func NewConfig() *Config {
return &Config{}
@ -210,6 +240,20 @@ func (c *Config) WithS3ForcePathStyle(force bool) *Config {
return c
}
// WithS3Disable100Continue sets a config S3Disable100Continue value returning
// a Config pointer for chaining.
func (c *Config) WithS3Disable100Continue(disable bool) *Config {
c.S3Disable100Continue = &disable
return c
}
// WithS3UseAccelerate sets a config S3UseAccelerate value returning a Config
// pointer for chaining.
func (c *Config) WithS3UseAccelerate(enable bool) *Config {
c.S3UseAccelerate = &enable
return c
}
// WithEC2MetadataDisableTimeoutOverride sets a config EC2MetadataDisableTimeoutOverride value
// returning a Config pointer for chaining.
func (c *Config) WithEC2MetadataDisableTimeoutOverride(enable bool) *Config {
@ -288,6 +332,14 @@ func mergeInConfig(dst *Config, other *Config) {
dst.S3ForcePathStyle = other.S3ForcePathStyle
}
if other.S3Disable100Continue != nil {
dst.S3Disable100Continue = other.S3Disable100Continue
}
if other.S3UseAccelerate != nil {
dst.S3UseAccelerate = other.S3UseAccelerate
}
if other.EC2MetadataDisableTimeoutOverride != nil {
dst.EC2MetadataDisableTimeoutOverride = other.EC2MetadataDisableTimeoutOverride
}

24
vendor/github.com/aws/aws-sdk-go/aws/convert_types.go generated vendored
View File

@ -2,7 +2,7 @@ package aws
import "time"
// String returns a pointer to of the string value passed in.
// String returns a pointer to the string value passed in.
func String(v string) *string {
return &v
}
@ -61,7 +61,7 @@ func StringValueMap(src map[string]*string) map[string]string {
return dst
}
// Bool returns a pointer to of the bool value passed in.
// Bool returns a pointer to the bool value passed in.
func Bool(v bool) *bool {
return &v
}
@ -120,7 +120,7 @@ func BoolValueMap(src map[string]*bool) map[string]bool {
return dst
}
// Int returns a pointer to of the int value passed in.
// Int returns a pointer to the int value passed in.
func Int(v int) *int {
return &v
}
@ -179,7 +179,7 @@ func IntValueMap(src map[string]*int) map[string]int {
return dst
}
// Int64 returns a pointer to of the int64 value passed in.
// Int64 returns a pointer to the int64 value passed in.
func Int64(v int64) *int64 {
return &v
}
@ -238,7 +238,7 @@ func Int64ValueMap(src map[string]*int64) map[string]int64 {
return dst
}
// Float64 returns a pointer to of the float64 value passed in.
// Float64 returns a pointer to the float64 value passed in.
func Float64(v float64) *float64 {
return &v
}
@ -297,7 +297,7 @@ func Float64ValueMap(src map[string]*float64) map[string]float64 {
return dst
}
// Time returns a pointer to of the time.Time value passed in.
// Time returns a pointer to the time.Time value passed in.
func Time(v time.Time) *time.Time {
return &v
}
@ -311,6 +311,18 @@ func TimeValue(v *time.Time) time.Time {
return time.Time{}
}
// TimeUnixMilli returns a Unix timestamp in milliseconds from "January 1, 1970 UTC".
// The result is undefined if the Unix time cannot be represented by an int64.
// Which includes calling TimeUnixMilli on a zero Time is undefined.
//
// This utility is useful for service API's such as CloudWatch Logs which require
// their unix time values to be in milliseconds.
//
// See Go stdlib https://golang.org/pkg/time/#Time.UnixNano for more information.
func TimeUnixMilli(t time.Time) int64 {
return t.UnixNano() / int64(time.Millisecond/time.Nanosecond)
}
// TimeSlice converts a slice of time.Time values into a slice of
// time.Time pointers
func TimeSlice(src []time.Time) []*time.Time {

53
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/handlers.go generated vendored
View File

@ -24,30 +24,38 @@ type lener interface {
// BuildContentLengthHandler builds the content length of a request based on the body,
// or will use the HTTPRequest.Header's "Content-Length" if defined. If unable
// to determine request body length and no "Content-Length" was specified it will panic.
//
// The Content-Length will only be aded to the request if the length of the body
// is greater than 0. If the body is empty or the current `Content-Length`
// header is <= 0, the header will also be stripped.
var BuildContentLengthHandler = request.NamedHandler{Name: "core.BuildContentLengthHandler", Fn: func(r *request.Request) {
if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
length, _ := strconv.ParseInt(slength, 10, 64)
r.HTTPRequest.ContentLength = length
return
}
var length int64
switch body := r.Body.(type) {
case nil:
length = 0
case lener:
length = int64(body.Len())
case io.Seeker:
r.BodyStart, _ = body.Seek(0, 1)
end, _ := body.Seek(0, 2)
body.Seek(r.BodyStart, 0) // make sure to seek back to original location
length = end - r.BodyStart
default:
panic("Cannot get length of body, must provide `ContentLength`")
if slength := r.HTTPRequest.Header.Get("Content-Length"); slength != "" {
length, _ = strconv.ParseInt(slength, 10, 64)
} else {
switch body := r.Body.(type) {
case nil:
length = 0
case lener:
length = int64(body.Len())
case io.Seeker:
r.BodyStart, _ = body.Seek(0, 1)
end, _ := body.Seek(0, 2)
body.Seek(r.BodyStart, 0) // make sure to seek back to original location
length = end - r.BodyStart
default:
panic("Cannot get length of body, must provide `ContentLength`")
}
}
r.HTTPRequest.ContentLength = length
r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length))
if length > 0 {
r.HTTPRequest.ContentLength = length
r.HTTPRequest.Header.Set("Content-Length", fmt.Sprintf("%d", length))
} else {
r.HTTPRequest.ContentLength = 0
r.HTTPRequest.Header.Del("Content-Length")
}
}}
// SDKVersionUserAgentHandler is a request handler for adding the SDK Version to the user agent.
@ -64,6 +72,11 @@ var SendHandler = request.NamedHandler{Name: "core.SendHandler", Fn: func(r *req
var err error
r.HTTPResponse, err = r.Config.HTTPClient.Do(r.HTTPRequest)
if err != nil {
// Prevent leaking if an HTTPResponse was returned. Clean up
// the body.
if r.HTTPResponse != nil {
r.HTTPResponse.Body.Close()
}
// Capture the case where url.Error is returned for error processing
// response. e.g. 301 without location header comes back as string
// error and r.HTTPResponse is nil. Other url redirect errors will

139
vendor/github.com/aws/aws-sdk-go/aws/corehandlers/param_validator.go generated vendored
View File

@ -1,144 +1,17 @@
package corehandlers
import (
"fmt"
"reflect"
"strconv"
"strings"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
import "github.com/aws/aws-sdk-go/aws/request"
// ValidateParametersHandler is a request handler to validate the input parameters.
// Validating parameters only has meaning if done prior to the request being sent.
var ValidateParametersHandler = request.NamedHandler{Name: "core.ValidateParametersHandler", Fn: func(r *request.Request) {
if r.ParamsFilled() {
v := validator{errors: []string{}}
v.validateAny(reflect.ValueOf(r.Params), "")
if count := len(v.errors); count > 0 {
format := "%d validation errors:\n- %s"
msg := fmt.Sprintf(format, count, strings.Join(v.errors, "\n- "))
r.Error = awserr.New("InvalidParameter", msg, nil)
}
}
}}
// A validator validates values. Collects validations errors which occurs.
type validator struct {
errors []string
}
// validateAny will validate any struct, slice or map type. All validations
// are also performed recursively for nested types.
func (v *validator) validateAny(value reflect.Value, path string) {
value = reflect.Indirect(value)
if !value.IsValid() {
if !r.ParamsFilled() {
return
}
switch value.Kind() {
case reflect.Struct:
v.validateStruct(value, path)
case reflect.Slice:
for i := 0; i < value.Len(); i++ {
v.validateAny(value.Index(i), path+fmt.Sprintf("[%d]", i))
}
case reflect.Map:
for _, n := range value.MapKeys() {
v.validateAny(value.MapIndex(n), path+fmt.Sprintf("[%q]", n.String()))
if v, ok := r.Params.(request.Validator); ok {
if err := v.Validate(); err != nil {
r.Error = err
}
}
}
// validateStruct will validate the struct value's fields. If the structure has
// nested types those types will be validated also.
func (v *validator) validateStruct(value reflect.Value, path string) {
prefix := "."
if path == "" {
prefix = ""
}
for i := 0; i < value.Type().NumField(); i++ {
f := value.Type().Field(i)
if strings.ToLower(f.Name[0:1]) == f.Name[0:1] {
continue
}
fvalue := value.FieldByName(f.Name)
err := validateField(f, fvalue, validateFieldRequired, validateFieldMin)
if err != nil {
v.errors = append(v.errors, fmt.Sprintf("%s: %s", err.Error(), path+prefix+f.Name))
continue
}
v.validateAny(fvalue, path+prefix+f.Name)
}
}
type validatorFunc func(f reflect.StructField, fvalue reflect.Value) error
func validateField(f reflect.StructField, fvalue reflect.Value, funcs ...validatorFunc) error {
for _, fn := range funcs {
if err := fn(f, fvalue); err != nil {
return err
}
}
return nil
}
// Validates that a field has a valid value provided for required fields.
func validateFieldRequired(f reflect.StructField, fvalue reflect.Value) error {
if f.Tag.Get("required") == "" {
return nil
}
switch fvalue.Kind() {
case reflect.Ptr, reflect.Slice, reflect.Map:
if fvalue.IsNil() {
return fmt.Errorf("missing required parameter")
}
default:
if !fvalue.IsValid() {
return fmt.Errorf("missing required parameter")
}
}
return nil
}
// Validates that if a value is provided for a field, that value must be at
// least a minimum length.
func validateFieldMin(f reflect.StructField, fvalue reflect.Value) error {
minStr := f.Tag.Get("min")
if minStr == "" {
return nil
}
min, _ := strconv.ParseInt(minStr, 10, 64)
kind := fvalue.Kind()
if kind == reflect.Ptr {
if fvalue.IsNil() {
return nil
}
fvalue = fvalue.Elem()
}
switch fvalue.Kind() {
case reflect.String:
if int64(fvalue.Len()) < min {
return fmt.Errorf("field too short, minimum length %d", min)
}
case reflect.Slice, reflect.Map:
if fvalue.IsNil() {
return nil
}
if int64(fvalue.Len()) < min {
return fmt.Errorf("field too short, minimum length %d", min)
}
// TODO min can also apply to number minimum value.
}
return nil
}
}}

3
vendor/github.com/aws/aws-sdk-go/aws/credentials/credentials.go generated vendored
View File

@ -76,6 +76,9 @@ type Value struct {
// AWS Session Token
SessionToken string
// Provider used to get credentials
ProviderName string
}
// A Provider is the interface for any component which will provide credentials

18
vendor/github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds/ec2_role_provider.go generated vendored
View File

@ -14,6 +14,9 @@ import (
"github.com/aws/aws-sdk-go/aws/ec2metadata"
)
// ProviderName provides a name of EC2Role provider
const ProviderName = "EC2RoleProvider"
// A EC2RoleProvider retrieves credentials from the EC2 service, and keeps track if
// those credentials are expired.
//
@ -85,17 +88,17 @@ func NewCredentialsWithClient(client *ec2metadata.EC2Metadata, options ...func(*
func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) {
credsList, err := requestCredList(m.Client)
if err != nil {
return credentials.Value{}, err
return credentials.Value{ProviderName: ProviderName}, err
}
if len(credsList) == 0 {
return credentials.Value{}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil)
return credentials.Value{ProviderName: ProviderName}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil)
}
credsName := credsList[0]
roleCreds, err := requestCred(m.Client, credsName)
if err != nil {
return credentials.Value{}, err
return credentials.Value{ProviderName: ProviderName}, err
}
m.SetExpiration(roleCreds.Expiration, m.ExpiryWindow)
@ -104,6 +107,7 @@ func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) {
AccessKeyID: roleCreds.AccessKeyID,
SecretAccessKey: roleCreds.SecretAccessKey,
SessionToken: roleCreds.Token,
ProviderName: ProviderName,
}, nil
}
@ -128,7 +132,7 @@ const iamSecurityCredsPath = "/iam/security-credentials"
func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) {
resp, err := client.GetMetadata(iamSecurityCredsPath)
if err != nil {
return nil, awserr.New("EC2RoleRequestError", "failed to list EC2 Roles", err)
return nil, awserr.New("EC2RoleRequestError", "no EC2 instance role found", err)
}
credsList := []string{}
@ -138,7 +142,7 @@ func requestCredList(client *ec2metadata.EC2Metadata) ([]string, error) {
}
if err := s.Err(); err != nil {
return nil, awserr.New("SerializationError", "failed to read list of EC2 Roles", err)
return nil, awserr.New("SerializationError", "failed to read EC2 instance role from metadata service", err)
}
return credsList, nil
@ -153,7 +157,7 @@ func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCred
if err != nil {
return ec2RoleCredRespBody{},
awserr.New("EC2RoleRequestError",
fmt.Sprintf("failed to get %s EC2 Role credentials", credsName),
fmt.Sprintf("failed to get %s EC2 instance role credentials", credsName),
err)
}
@ -161,7 +165,7 @@ func requestCred(client *ec2metadata.EC2Metadata, credsName string) (ec2RoleCred
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&respCreds); err != nil {
return ec2RoleCredRespBody{},
awserr.New("SerializationError",
fmt.Sprintf("failed to decode %s EC2 Role credentials", credsName),
fmt.Sprintf("failed to decode %s EC2 instance role credentials", credsName),
err)
}

191
vendor/github.com/aws/aws-sdk-go/aws/credentials/endpointcreds/provider.go generated vendored Normal file
View File

@ -0,0 +1,191 @@
// Package endpointcreds provides support for retrieving credentials from an
// arbitrary HTTP endpoint.
//
// The credentials endpoint Provider can receive both static and refreshable
// credentials that will expire. Credentials are static when an "Expiration"
// value is not provided in the endpoint's response.
//
// Static credentials will never expire once they have been retrieved. The format
// of the static credentials response:
// {
// "AccessKeyId" : "MUA...",
// "SecretAccessKey" : "/7PC5om....",
// }
//
// Refreshable credentials will expire within the "ExpiryWindow" of the Expiration
// value in the response. The format of the refreshable credentials response:
// {
// "AccessKeyId" : "MUA...",
// "SecretAccessKey" : "/7PC5om....",
// "Token" : "AQoDY....=",
// "Expiration" : "2016-02-25T06:03:31Z"
// }
//
// Errors should be returned in the following format and only returned with 400
// or 500 HTTP status codes.
// {
// "code": "ErrorCode",
// "message": "Helpful error message."
// }
package endpointcreds
import (
"encoding/json"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
)
// ProviderName is the name of the credentials provider.
const ProviderName = `CredentialsEndpointProvider`
// Provider satisfies the credentials.Provider interface, and is a client to
// retrieve credentials from an arbitrary endpoint.
type Provider struct {
staticCreds bool
credentials.Expiry
// Requires a AWS Client to make HTTP requests to the endpoint with.
// the Endpoint the request will be made to is provided by the aws.Config's
// Endpoint value.
Client *client.Client
// ExpiryWindow will allow the credentials to trigger refreshing prior to
// the credentials actually expiring. This is beneficial so race conditions
// with expiring credentials do not cause request to fail unexpectedly
// due to ExpiredTokenException exceptions.
//
// So a ExpiryWindow of 10s would cause calls to IsExpired() to return true
// 10 seconds before the credentials are actually expired.
//
// If ExpiryWindow is 0 or less it will be ignored.
ExpiryWindow time.Duration
}
// NewProviderClient returns a credentials Provider for retrieving AWS credentials
// from arbitrary endpoint.
func NewProviderClient(cfg aws.Config, handlers request.Handlers, endpoint string, options ...func(*Provider)) credentials.Provider {
p := &Provider{
Client: client.New(
cfg,
metadata.ClientInfo{
ServiceName: "CredentialsEndpoint",
Endpoint: endpoint,
},
handlers,
),
}
p.Client.Handlers.Unmarshal.PushBack(unmarshalHandler)
p.Client.Handlers.UnmarshalError.PushBack(unmarshalError)
p.Client.Handlers.Validate.Clear()
p.Client.Handlers.Validate.PushBack(validateEndpointHandler)
for _, option := range options {
option(p)
}
return p
}
// NewCredentialsClient returns a Credentials wrapper for retrieving credentials
// from an arbitrary endpoint concurrently. The client will request the
func NewCredentialsClient(cfg aws.Config, handlers request.Handlers, endpoint string, options ...func(*Provider)) *credentials.Credentials {
return credentials.NewCredentials(NewProviderClient(cfg, handlers, endpoint, options...))
}
// IsExpired returns true if the credentials retrieved are expired, or not yet
// retrieved.
func (p *Provider) IsExpired() bool {
if p.staticCreds {
return false
}
return p.Expiry.IsExpired()
}
// Retrieve will attempt to request the credentials from the endpoint the Provider
// was configured for. And error will be returned if the retrieval fails.
func (p *Provider) Retrieve() (credentials.Value, error) {
resp, err := p.getCredentials()
if err != nil {
return credentials.Value{ProviderName: ProviderName},
awserr.New("CredentialsEndpointError", "failed to load credentials", err)
}
if resp.Expiration != nil {
p.SetExpiration(*resp.Expiration, p.ExpiryWindow)
} else {
p.staticCreds = true
}
return credentials.Value{
AccessKeyID: resp.AccessKeyID,
SecretAccessKey: resp.SecretAccessKey,
SessionToken: resp.Token,
ProviderName: ProviderName,
}, nil
}
type getCredentialsOutput struct {
Expiration *time.Time
AccessKeyID string
SecretAccessKey string
Token string
}
type errorOutput struct {
Code string `json:"code"`
Message string `json:"message"`
}
func (p *Provider) getCredentials() (*getCredentialsOutput, error) {
op := &request.Operation{
Name: "GetCredentials",
HTTPMethod: "GET",
}
out := &getCredentialsOutput{}
req := p.Client.NewRequest(op, nil, out)
req.HTTPRequest.Header.Set("Accept", "application/json")
return out, req.Send()
}
func validateEndpointHandler(r *request.Request) {
if len(r.ClientInfo.Endpoint) == 0 {
r.Error = aws.ErrMissingEndpoint
}
}
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
out := r.Data.(*getCredentialsOutput)
if err := json.NewDecoder(r.HTTPResponse.Body).Decode(&out); err != nil {
r.Error = awserr.New("SerializationError",
"failed to decode endpoint credentials",
err,
)
}
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
var errOut errorOutput
if err := json.NewDecoder(r.HTTPResponse.Body).Decode(&errOut); err != nil {
r.Error = awserr.New("SerializationError",
"failed to decode endpoint credentials",
err,
)
}
// Response body format is not consistent between metadata endpoints.
// Grab the error message as a string and include that as the source error
r.Error = awserr.New(errOut.Code, errOut.Message, nil)
}

8
vendor/github.com/aws/aws-sdk-go/aws/credentials/env_provider.go generated vendored
View File

@ -6,6 +6,9 @@ import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
// EnvProviderName provides a name of Env provider
const EnvProviderName = "EnvProvider"
var (
// ErrAccessKeyIDNotFound is returned when the AWS Access Key ID can't be
// found in the process's environment.
@ -52,11 +55,11 @@ func (e *EnvProvider) Retrieve() (Value, error) {
}
if id == "" {
return Value{}, ErrAccessKeyIDNotFound
return Value{ProviderName: EnvProviderName}, ErrAccessKeyIDNotFound
}
if secret == "" {
return Value{}, ErrSecretAccessKeyNotFound
return Value{ProviderName: EnvProviderName}, ErrSecretAccessKeyNotFound
}
e.retrieved = true
@ -64,6 +67,7 @@ func (e *EnvProvider) Retrieve() (Value, error) {
AccessKeyID: id,
SecretAccessKey: secret,
SessionToken: os.Getenv("AWS_SESSION_TOKEN"),
ProviderName: EnvProviderName,
}, nil
}

16
vendor/github.com/aws/aws-sdk-go/aws/credentials/shared_credentials_provider.go generated vendored
View File

@ -10,6 +10,9 @@ import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
// SharedCredsProviderName provides a name of SharedCreds provider
const SharedCredsProviderName = "SharedCredentialsProvider"
var (
// ErrSharedCredentialsHomeNotFound is emitted when the user directory cannot be found.
//
@ -55,12 +58,12 @@ func (p *SharedCredentialsProvider) Retrieve() (Value, error) {
filename, err := p.filename()
if err != nil {
return Value{}, err
return Value{ProviderName: SharedCredsProviderName}, err
}
creds, err := loadProfile(filename, p.profile())
if err != nil {
return Value{}, err
return Value{ProviderName: SharedCredsProviderName}, err
}
p.retrieved = true
@ -78,23 +81,23 @@ func (p *SharedCredentialsProvider) IsExpired() bool {
func loadProfile(filename, profile string) (Value, error) {
config, err := ini.Load(filename)
if err != nil {
return Value{}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err)
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to load shared credentials file", err)
}
iniProfile, err := config.GetSection(profile)
if err != nil {
return Value{}, awserr.New("SharedCredsLoad", "failed to get profile", err)
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsLoad", "failed to get profile", err)
}
id, err := iniProfile.GetKey("aws_access_key_id")
if err != nil {
return Value{}, awserr.New("SharedCredsAccessKey",
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsAccessKey",
fmt.Sprintf("shared credentials %s in %s did not contain aws_access_key_id", profile, filename),
err)
}
secret, err := iniProfile.GetKey("aws_secret_access_key")
if err != nil {
return Value{}, awserr.New("SharedCredsSecret",
return Value{ProviderName: SharedCredsProviderName}, awserr.New("SharedCredsSecret",
fmt.Sprintf("shared credentials %s in %s did not contain aws_secret_access_key", profile, filename),
nil)
}
@ -106,6 +109,7 @@ func loadProfile(filename, profile string) (Value, error) {
AccessKeyID: id.String(),
SecretAccessKey: secret.String(),
SessionToken: token.String(),
ProviderName: SharedCredsProviderName,
}, nil
}

8
vendor/github.com/aws/aws-sdk-go/aws/credentials/static_provider.go generated vendored
View File

@ -4,6 +4,9 @@ import (
"github.com/aws/aws-sdk-go/aws/awserr"
)
// StaticProviderName provides a name of Static provider
const StaticProviderName = "StaticProvider"
var (
// ErrStaticCredentialsEmpty is emitted when static credentials are empty.
//
@ -11,7 +14,7 @@ var (
ErrStaticCredentialsEmpty = awserr.New("EmptyStaticCreds", "static credentials are empty", nil)
)
// A StaticProvider is a set of credentials which are set pragmatically,
// A StaticProvider is a set of credentials which are set programmatically,
// and will never expire.
type StaticProvider struct {
Value
@ -30,9 +33,10 @@ func NewStaticCredentials(id, secret, token string) *Credentials {
// Retrieve returns the credentials or error if the credentials are invalid.
func (s *StaticProvider) Retrieve() (Value, error) {
if s.AccessKeyID == "" || s.SecretAccessKey == "" {
return Value{}, ErrStaticCredentialsEmpty
return Value{ProviderName: StaticProviderName}, ErrStaticCredentialsEmpty
}
s.Value.ProviderName = StaticProviderName
return s.Value, nil
}

45
vendor/github.com/aws/aws-sdk-go/aws/defaults/defaults.go generated vendored
View File

@ -8,6 +8,7 @@
package defaults
import (
"fmt"
"net/http"
"os"
"time"
@ -16,6 +17,7 @@ import (
"github.com/aws/aws-sdk-go/aws/corehandlers"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/credentials/ec2rolecreds"
"github.com/aws/aws-sdk-go/aws/credentials/endpointcreds"
"github.com/aws/aws-sdk-go/aws/ec2metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/endpoints"
@ -66,7 +68,9 @@ func Handlers() request.Handlers {
var handlers request.Handlers
handlers.Validate.PushBackNamed(corehandlers.ValidateEndpointHandler)
handlers.Validate.AfterEachFn = request.HandlerListStopOnError
handlers.Build.PushBackNamed(corehandlers.SDKVersionUserAgentHandler)
handlers.Build.AfterEachFn = request.HandlerListStopOnError
handlers.Sign.PushBackNamed(corehandlers.BuildContentLengthHandler)
handlers.Send.PushBackNamed(corehandlers.SendHandler)
handlers.AfterRetry.PushBackNamed(corehandlers.AfterRetryHandler)
@ -81,16 +85,43 @@ func Handlers() request.Handlers {
// is available if you need to reset the credentials of an
// existing service client or session's Config.
func CredChain(cfg *aws.Config, handlers request.Handlers) *credentials.Credentials {
endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName, *cfg.Region, true)
return credentials.NewCredentials(&credentials.ChainProvider{
VerboseErrors: aws.BoolValue(cfg.CredentialsChainVerboseErrors),
Providers: []credentials.Provider{
&credentials.EnvProvider{},
&credentials.SharedCredentialsProvider{Filename: "", Profile: ""},
&ec2rolecreds.EC2RoleProvider{
Client: ec2metadata.NewClient(*cfg, handlers, endpoint, signingRegion),
ExpiryWindow: 5 * time.Minute,
},
}})
remoteCredProvider(*cfg, handlers),
},
})
}
func remoteCredProvider(cfg aws.Config, handlers request.Handlers) credentials.Provider {
ecsCredURI := os.Getenv("AWS_CONTAINER_CREDENTIALS_RELATIVE_URI")
if len(ecsCredURI) > 0 {
return ecsCredProvider(cfg, handlers, ecsCredURI)
}
return ec2RoleProvider(cfg, handlers)
}
func ecsCredProvider(cfg aws.Config, handlers request.Handlers, uri string) credentials.Provider {
const host = `169.254.170.2`
return endpointcreds.NewProviderClient(cfg, handlers,
fmt.Sprintf("http://%s%s", host, uri),
func(p *endpointcreds.Provider) {
p.ExpiryWindow = 5 * time.Minute
},
)
}
func ec2RoleProvider(cfg aws.Config, handlers request.Handlers) credentials.Provider {
endpoint, signingRegion := endpoints.EndpointForRegion(ec2metadata.ServiceName,
aws.StringValue(cfg.Region), true)
return &ec2rolecreds.EC2RoleProvider{
Client: ec2metadata.NewClient(cfg, handlers, endpoint, signingRegion),
ExpiryWindow: 5 * time.Minute,
}
}

99
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/api.go generated vendored
View File

@ -1,12 +1,19 @@
package ec2metadata
import (
"encoding/json"
"fmt"
"path"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
)
// GetMetadata uses the path provided to request
// GetMetadata uses the path provided to request information from the EC2
// instance metdata service. The content will be returned as a string, or
// error if the request failed.
func (c *EC2Metadata) GetMetadata(p string) (string, error) {
op := &request.Operation{
Name: "GetMetadata",
@ -20,6 +27,68 @@ func (c *EC2Metadata) GetMetadata(p string) (string, error) {
return output.Content, req.Send()
}
// GetDynamicData uses the path provided to request information from the EC2
// instance metadata service for dynamic data. The content will be returned
// as a string, or error if the request failed.
func (c *EC2Metadata) GetDynamicData(p string) (string, error) {
op := &request.Operation{
Name: "GetDynamicData",
HTTPMethod: "GET",
HTTPPath: path.Join("/", "dynamic", p),
}
output := &metadataOutput{}
req := c.NewRequest(op, nil, output)
return output.Content, req.Send()
}
// GetInstanceIdentityDocument retrieves an identity document describing an
// instance. Error is returned if the request fails or is unable to parse
// the response.
func (c *EC2Metadata) GetInstanceIdentityDocument() (EC2InstanceIdentityDocument, error) {
resp, err := c.GetDynamicData("instance-identity/document")
if err != nil {
return EC2InstanceIdentityDocument{},
awserr.New("EC2MetadataRequestError",
"failed to get EC2 instance identity document", err)
}
doc := EC2InstanceIdentityDocument{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&doc); err != nil {
return EC2InstanceIdentityDocument{},
awserr.New("SerializationError",
"failed to decode EC2 instance identity document", err)
}
return doc, nil
}
// IAMInfo retrieves IAM info from the metadata API
func (c *EC2Metadata) IAMInfo() (EC2IAMInfo, error) {
resp, err := c.GetMetadata("iam/info")
if err != nil {
return EC2IAMInfo{},
awserr.New("EC2MetadataRequestError",
"failed to get EC2 IAM info", err)
}
info := EC2IAMInfo{}
if err := json.NewDecoder(strings.NewReader(resp)).Decode(&info); err != nil {
return EC2IAMInfo{},
awserr.New("SerializationError",
"failed to decode EC2 IAM info", err)
}
if info.Code != "Success" {
errMsg := fmt.Sprintf("failed to get EC2 IAM Info (%s)", info.Code)
return EC2IAMInfo{},
awserr.New("EC2MetadataError", errMsg, nil)
}
return info, nil
}
// Region returns the region the instance is running in.
func (c *EC2Metadata) Region() (string, error) {
resp, err := c.GetMetadata("placement/availability-zone")
@ -41,3 +110,31 @@ func (c *EC2Metadata) Available() bool {
return true
}
// An EC2IAMInfo provides the shape for unmarshalling
// an IAM info from the metadata API
type EC2IAMInfo struct {
Code string
LastUpdated time.Time
InstanceProfileArn string
InstanceProfileID string
}
// An EC2InstanceIdentityDocument provides the shape for unmarshalling
// an instance identity document
type EC2InstanceIdentityDocument struct {
DevpayProductCodes []string `json:"devpayProductCodes"`
AvailabilityZone string `json:"availabilityZone"`
PrivateIP string `json:"privateIp"`
Version string `json:"version"`
Region string `json:"region"`
InstanceID string `json:"instanceId"`
BillingProducts []string `json:"billingProducts"`
InstanceType string `json:"instanceType"`
AccountID string `json:"accountId"`
PendingTime time.Time `json:"pendingTime"`
ImageID string `json:"imageId"`
KernelID string `json:"kernelId"`
RamdiskID string `json:"ramdiskId"`
Architecture string `json:"architecture"`
}

23
vendor/github.com/aws/aws-sdk-go/aws/ec2metadata/service.go generated vendored
View File

@ -3,7 +3,9 @@
package ec2metadata
import (
"io/ioutil"
"bytes"
"errors"
"io"
"net/http"
"time"
@ -91,23 +93,28 @@ type metadataOutput struct {
func unmarshalHandler(r *request.Request) {
defer r.HTTPResponse.Body.Close()
b, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata respose", err)
return
}
data := r.Data.(*metadataOutput)
data.Content = string(b)
if data, ok := r.Data.(*metadataOutput); ok {
data.Content = b.String()
}
}
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
_, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
b := &bytes.Buffer{}
if _, err := io.Copy(b, r.HTTPResponse.Body); err != nil {
r.Error = awserr.New("SerializationError", "unable to unmarshal EC2 metadata error respose", err)
return
}
// TODO extract the error...
// Response body format is not consistent between metadata endpoints.
// Grab the error message as a string and include that as the source error
r.Error = awserr.New("EC2MetadataError", "failed to make EC2Metadata request", errors.New(b.String()))
}
func validateEndpointHandler(r *request.Request) {

14
vendor/github.com/aws/aws-sdk-go/aws/logger.go generated vendored
View File

@ -79,6 +79,20 @@ type Logger interface {
Log(...interface{})
}
// A LoggerFunc is a convenience type to convert a function taking a variadic
// list of arguments and wrap it so the Logger interface can be used.
//
// Example:
// s3.New(sess, &aws.Config{Logger: aws.LoggerFunc(func(args ...interface{}) {
// fmt.Fprintln(os.Stdout, args...)
// })})
type LoggerFunc func(...interface{})
// Log calls the wrapped function with the arguments provided
func (f LoggerFunc) Log(args ...interface{}) {
f(args...)
}
// NewDefaultLogger returns a Logger which will write log messages to stdout, and
// use same formatting runes as the stdlib log.Logger
func NewDefaultLogger() Logger {

53
vendor/github.com/aws/aws-sdk-go/aws/request/handlers.go generated vendored
View File

@ -50,9 +50,28 @@ func (h *Handlers) Clear() {
h.AfterRetry.Clear()
}
// A HandlerListRunItem represents an entry in the HandlerList which
// is being run.
type HandlerListRunItem struct {
Index int
Handler NamedHandler
Request *Request
}
// A HandlerList manages zero or more handlers in a list.
type HandlerList struct {
list []NamedHandler
// Called after each request handler in the list is called. If set
// and the func returns true the HandlerList will continue to iterate
// over the request handlers. If false is returned the HandlerList
// will stop iterating.
//
// Should be used if extra logic to be performed between each handler
// in the list. This can be used to terminate a list's iteration
// based on a condition such as error like, HandlerListStopOnError.
// Or for logging like HandlerListLogItem.
AfterEachFn func(item HandlerListRunItem) bool
}
// A NamedHandler is a struct that contains a name and function callback.
@ -63,7 +82,9 @@ type NamedHandler struct {
// copy creates a copy of the handler list.
func (l *HandlerList) copy() HandlerList {
var n HandlerList
n := HandlerList{
AfterEachFn: l.AfterEachFn,
}
n.list = append([]NamedHandler{}, l.list...)
return n
}
@ -111,11 +132,37 @@ func (l *HandlerList) Remove(n NamedHandler) {
// Run executes all handlers in the list with a given request object.
func (l *HandlerList) Run(r *Request) {
for _, f := range l.list {
f.Fn(r)
for i, h := range l.list {
h.Fn(r)
item := HandlerListRunItem{
Index: i, Handler: h, Request: r,
}
if l.AfterEachFn != nil && !l.AfterEachFn(item) {
return
}
}
}
// HandlerListLogItem logs the request handler and the state of the
// request's Error value. Always returns true to continue iterating
// request handlers in a HandlerList.
func HandlerListLogItem(item HandlerListRunItem) bool {
if item.Request.Config.Logger == nil {
return true
}
item.Request.Config.Logger.Log("DEBUG: RequestHandler",
item.Index, item.Handler.Name, item.Request.Error)
return true
}
// HandlerListStopOnError returns false to stop the HandlerList iterating
// over request handlers if Request.Error is not nil. True otherwise
// to continue iterating.
func HandlerListStopOnError(item HandlerListRunItem) bool {
return item.Request.Error == nil
}
// MakeAddToUserAgentHandler will add the name/version pair to the User-Agent request
// header. If the extra parameters are provided they will be added as metadata to the
// name/version pair resulting in the following format.

33
vendor/github.com/aws/aws-sdk-go/aws/request/http_request.go generated vendored Normal file
View File

@ -0,0 +1,33 @@
// +build go1.5
package request
import (
"io"
"net/http"
"net/url"
)
func copyHTTPRequest(r *http.Request, body io.ReadCloser) *http.Request {
req := &http.Request{
URL: &url.URL{},
Header: http.Header{},
Close: r.Close,
Body: body,
Host: r.Host,
Method: r.Method,
Proto: r.Proto,
ContentLength: r.ContentLength,
// Cancel will be deprecated in 1.7 and will be replaced with Context
Cancel: r.Cancel,
}
*req.URL = *r.URL
for k, v := range r.Header {
for _, vv := range v {
req.Header.Add(k, vv)
}
}
return req
}

31
vendor/github.com/aws/aws-sdk-go/aws/request/http_request_1_4.go generated vendored Normal file
View File

@ -0,0 +1,31 @@
// +build !go1.5
package request
import (
"io"
"net/http"
"net/url"
)
func copyHTTPRequest(r *http.Request, body io.ReadCloser) *http.Request {
req := &http.Request{
URL: &url.URL{},
Header: http.Header{},
Close: r.Close,
Body: body,
Host: r.Host,
Method: r.Method,
Proto: r.Proto,
ContentLength: r.ContentLength,
}
*req.URL = *r.URL
for k, v := range r.Header {
for _, vv := range v {
req.Header.Add(k, vv)
}
}
return req
}

49
vendor/github.com/aws/aws-sdk-go/aws/request/offset_reader.go generated vendored Normal file
View File

@ -0,0 +1,49 @@
package request
import (
"io"
"sync"
)
// offsetReader is a thread-safe io.ReadCloser to prevent racing
// with retrying requests
type offsetReader struct {
buf io.ReadSeeker
lock sync.RWMutex
closed bool
}
func newOffsetReader(buf io.ReadSeeker, offset int64) *offsetReader {
reader := &offsetReader{}
buf.Seek(offset, 0)
reader.buf = buf
return reader
}
// Close is a thread-safe close. Uses the write lock.
func (o *offsetReader) Close() error {
o.lock.Lock()
defer o.lock.Unlock()
o.closed = true
return nil
}
// Read is a thread-safe read using a read lock.
func (o *offsetReader) Read(p []byte) (int, error) {
o.lock.RLock()
defer o.lock.RUnlock()
if o.closed {
return 0, io.EOF
}
return o.buf.Read(p)
}
// CloseAndCopy will return a new offsetReader with a copy of the old buffer
// and close the old buffer.
func (o *offsetReader) CloseAndCopy(offset int64) *offsetReader {
o.Close()
return newOffsetReader(o.buf, offset)
}

111
vendor/github.com/aws/aws-sdk-go/aws/request/request.go generated vendored
View File

@ -12,6 +12,7 @@ import (
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/client/metadata"
)
@ -22,20 +23,23 @@ type Request struct {
Handlers Handlers
Retryer
Time time.Time
ExpireTime time.Duration
Operation *Operation
HTTPRequest *http.Request
HTTPResponse *http.Response
Body io.ReadSeeker
BodyStart int64 // offset from beginning of Body that the request body starts
Params interface{}
Error error
Data interface{}
RequestID string
RetryCount int
Retryable *bool
RetryDelay time.Duration
Time time.Time
ExpireTime time.Duration
Operation *Operation
HTTPRequest *http.Request
HTTPResponse *http.Response
Body io.ReadSeeker
BodyStart int64 // offset from beginning of Body that the request body starts
Params interface{}
Error error
Data interface{}
RequestID string
RetryCount int
Retryable *bool
RetryDelay time.Duration
NotHoist bool
SignedHeaderVals http.Header
LastSignedAt time.Time
built bool
}
@ -69,13 +73,15 @@ func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers,
if method == "" {
method = "POST"
}
p := operation.HTTPPath
if p == "" {
p = "/"
}
httpReq, _ := http.NewRequest(method, "", nil)
httpReq.URL, _ = url.Parse(clientInfo.Endpoint + p)
var err error
httpReq.URL, err = url.Parse(clientInfo.Endpoint + operation.HTTPPath)
if err != nil {
httpReq.URL = &url.URL{}
err = awserr.New("InvalidEndpointURL", "invalid endpoint uri", err)
}
r := &Request{
Config: cfg,
@ -89,7 +95,7 @@ func New(cfg aws.Config, clientInfo metadata.ClientInfo, handlers Handlers,
HTTPRequest: httpReq,
Body: nil,
Params: params,
Error: nil,
Error: err,
Data: data,
}
r.SetBufferBody([]byte{})
@ -129,7 +135,7 @@ func (r *Request) SetStringBody(s string) {
// SetReaderBody will set the request's body reader.
func (r *Request) SetReaderBody(reader io.ReadSeeker) {
r.HTTPRequest.Body = ioutil.NopCloser(reader)
r.HTTPRequest.Body = newOffsetReader(reader, 0)
r.Body = reader
}
@ -137,6 +143,7 @@ func (r *Request) SetReaderBody(reader io.ReadSeeker) {
// if the signing fails.
func (r *Request) Presign(expireTime time.Duration) (string, error) {
r.ExpireTime = expireTime
r.NotHoist = false
r.Sign()
if r.Error != nil {
return "", r.Error
@ -144,6 +151,18 @@ func (r *Request) Presign(expireTime time.Duration) (string, error) {
return r.HTTPRequest.URL.String(), nil
}
// PresignRequest behaves just like presign, but hoists all headers and signs them.
// Also returns the signed hash back to the user
func (r *Request) PresignRequest(expireTime time.Duration) (string, http.Header, error) {
r.ExpireTime = expireTime
r.NotHoist = true
r.Sign()
if r.Error != nil {
return "", nil, r.Error
}
return r.HTTPRequest.URL.String(), r.SignedHeaderVals, nil
}
func debugLogReqError(r *Request, stage string, retrying bool, err error) {
if !r.Config.LogLevel.Matches(aws.LogDebugWithRequestErrors) {
return
@ -170,20 +189,23 @@ func debugLogReqError(r *Request, stage string, retrying bool, err error) {
// which occurred will be returned.
func (r *Request) Build() error {
if !r.built {
r.Error = nil
r.Handlers.Validate.Run(r)
if r.Error != nil {
debugLogReqError(r, "Validate Request", false, r.Error)
return r.Error
}
r.Handlers.Build.Run(r)
if r.Error != nil {
debugLogReqError(r, "Build Request", false, r.Error)
return r.Error
}
r.built = true
}
return r.Error
}
// Sign will sign the request retuning error if errors are encountered.
// Sign will sign the request returning error if errors are encountered.
//
// Send will build the request prior to signing. All Sign Handlers will
// be executed in the order they were set.
@ -202,28 +224,53 @@ func (r *Request) Sign() error {
//
// Send will sign the request prior to sending. All Send Handlers will
// be executed in the order they were set.
//
// Canceling a request is non-deterministic. If a request has been canceled,
// then the transport will choose, randomly, one of the state channels during
// reads or getting the connection.
//
// readLoop() and getConn(req *Request, cm connectMethod)
// https://github.com/golang/go/blob/master/src/net/http/transport.go
func (r *Request) Send() error {
for {
r.Sign()
if r.Error != nil {
return r.Error
}
if aws.BoolValue(r.Retryable) {
if r.Config.LogLevel.Matches(aws.LogDebugWithRequestRetries) {
r.Config.Logger.Log(fmt.Sprintf("DEBUG: Retrying Request %s/%s, attempt %d",
r.ClientInfo.ServiceName, r.Operation.Name, r.RetryCount))
}
// Re-seek the body back to the original point in for a retry so that
// send will send the body's contents again in the upcoming request.
r.Body.Seek(r.BodyStart, 0)
r.HTTPRequest.Body = ioutil.NopCloser(r.Body)
var body io.ReadCloser
if reader, ok := r.HTTPRequest.Body.(*offsetReader); ok {
body = reader.CloseAndCopy(r.BodyStart)
} else {
if r.Config.Logger != nil {
r.Config.Logger.Log("Request body type has been overwritten. May cause race conditions")
}
r.Body.Seek(r.BodyStart, 0)
body = ioutil.NopCloser(r.Body)
}
r.HTTPRequest = copyHTTPRequest(r.HTTPRequest, body)
if r.HTTPResponse != nil && r.HTTPResponse.Body != nil {
// Closing response body. Since we are setting a new request to send off, this
// response will get squashed and leaked.
r.HTTPResponse.Body.Close()
}
}
r.Sign()
if r.Error != nil {
return r.Error
}
r.Retryable = nil
r.Handlers.Send.Run(r)
if r.Error != nil {
if strings.Contains(r.Error.Error(), "net/http: request canceled") {
return r.Error
}
err := r.Error
r.Handlers.Retry.Run(r)
r.Handlers.AfterRetry.Run(r)

23
vendor/github.com/aws/aws-sdk-go/aws/request/retryer.go generated vendored
View File

@ -26,8 +26,11 @@ func WithRetryer(cfg *aws.Config, retryer Retryer) *aws.Config {
// retryableCodes is a collection of service response codes which are retry-able
// without any further action.
var retryableCodes = map[string]struct{}{
"RequestError": {},
"RequestTimeout": {},
"RequestError": {},
"RequestTimeout": {},
}
var throttleCodes = map[string]struct{}{
"ProvisionedThroughputExceededException": {},
"Throttling": {},
"ThrottlingException": {},
@ -46,6 +49,11 @@ var credsExpiredCodes = map[string]struct{}{
"RequestExpired": {}, // EC2 Only
}
func isCodeThrottle(code string) bool {
_, ok := throttleCodes[code]
return ok
}
func isCodeRetryable(code string) bool {
if _, ok := retryableCodes[code]; ok {
return true
@ -70,6 +78,17 @@ func (r *Request) IsErrorRetryable() bool {
return false
}
// IsErrorThrottle returns whether the error is to be throttled based on its code.
// Returns false if the request has no Error set
func (r *Request) IsErrorThrottle() bool {
if r.Error != nil {
if err, ok := r.Error.(awserr.Error); ok {
return isCodeThrottle(err.Code())
}
}
return false
}
// IsErrorExpired returns whether the error code is a credential expiry error.
// Returns false if the request has no Error set.
func (r *Request) IsErrorExpired() bool {

234
vendor/github.com/aws/aws-sdk-go/aws/request/validation.go generated vendored Normal file
View File

@ -0,0 +1,234 @@
package request
import (
"bytes"
"fmt"
"github.com/aws/aws-sdk-go/aws/awserr"
)
const (
// InvalidParameterErrCode is the error code for invalid parameters errors
InvalidParameterErrCode = "InvalidParameter"
// ParamRequiredErrCode is the error code for required parameter errors
ParamRequiredErrCode = "ParamRequiredError"
// ParamMinValueErrCode is the error code for fields with too low of a
// number value.
ParamMinValueErrCode = "ParamMinValueError"
// ParamMinLenErrCode is the error code for fields without enough elements.
ParamMinLenErrCode = "ParamMinLenError"
)
// Validator provides a way for types to perform validation logic on their
// input values that external code can use to determine if a type's values
// are valid.
type Validator interface {
Validate() error
}
// An ErrInvalidParams provides wrapping of invalid parameter errors found when
// validating API operation input parameters.
type ErrInvalidParams struct {
// Context is the base context of the invalid parameter group.
Context string
errs []ErrInvalidParam
}
// Add adds a new invalid parameter error to the collection of invalid
// parameters. The context of the invalid parameter will be updated to reflect
// this collection.
func (e *ErrInvalidParams) Add(err ErrInvalidParam) {
err.SetContext(e.Context)
e.errs = append(e.errs, err)
}
// AddNested adds the invalid parameter errors from another ErrInvalidParams
// value into this collection. The nested errors will have their nested context
// updated and base context to reflect the merging.
//
// Use for nested validations errors.
func (e *ErrInvalidParams) AddNested(nestedCtx string, nested ErrInvalidParams) {
for _, err := range nested.errs {
err.SetContext(e.Context)
err.AddNestedContext(nestedCtx)
e.errs = append(e.errs, err)
}
}
// Len returns the number of invalid parameter errors
func (e ErrInvalidParams) Len() int {
return len(e.errs)
}
// Code returns the code of the error
func (e ErrInvalidParams) Code() string {
return InvalidParameterErrCode
}
// Message returns the message of the error
func (e ErrInvalidParams) Message() string {
return fmt.Sprintf("%d validation error(s) found.", len(e.errs))
}
// Error returns the string formatted form of the invalid parameters.
func (e ErrInvalidParams) Error() string {
w := &bytes.Buffer{}
fmt.Fprintf(w, "%s: %s\n", e.Code(), e.Message())
for _, err := range e.errs {
fmt.Fprintf(w, "- %s\n", err.Message())
}
return w.String()
}
// OrigErr returns the invalid parameters as a awserr.BatchedErrors value
func (e ErrInvalidParams) OrigErr() error {
return awserr.NewBatchError(
InvalidParameterErrCode, e.Message(), e.OrigErrs())
}
// OrigErrs returns a slice of the invalid parameters
func (e ErrInvalidParams) OrigErrs() []error {
errs := make([]error, len(e.errs))
for i := 0; i < len(errs); i++ {
errs[i] = e.errs[i]
}
return errs
}
// An ErrInvalidParam represents an invalid parameter error type.
type ErrInvalidParam interface {
awserr.Error
// Field name the error occurred on.
Field() string
// SetContext updates the context of the error.
SetContext(string)
// AddNestedContext updates the error's context to include a nested level.
AddNestedContext(string)
}
type errInvalidParam struct {
context string
nestedContext string
field string
code string
msg string
}
// Code returns the error code for the type of invalid parameter.
func (e *errInvalidParam) Code() string {
return e.code
}
// Message returns the reason the parameter was invalid, and its context.
func (e *errInvalidParam) Message() string {
return fmt.Sprintf("%s, %s.", e.msg, e.Field())
}
// Error returns the string version of the invalid parameter error.
func (e *errInvalidParam) Error() string {
return fmt.Sprintf("%s: %s", e.code, e.Message())
}
// OrigErr returns nil, Implemented for awserr.Error interface.
func (e *errInvalidParam) OrigErr() error {
return nil
}
// Field Returns the field and context the error occurred.
func (e *errInvalidParam) Field() string {
field := e.context
if len(field) > 0 {
field += "."
}
if len(e.nestedContext) > 0 {
field += fmt.Sprintf("%s.", e.nestedContext)
}
field += e.field
return field
}
// SetContext updates the base context of the error.
func (e *errInvalidParam) SetContext(ctx string) {
e.context = ctx
}
// AddNestedContext prepends a context to the field's path.
func (e *errInvalidParam) AddNestedContext(ctx string) {
if len(e.nestedContext) == 0 {
e.nestedContext = ctx
} else {
e.nestedContext = fmt.Sprintf("%s.%s", ctx, e.nestedContext)
}
}
// An ErrParamRequired represents an required parameter error.
type ErrParamRequired struct {
errInvalidParam
}
// NewErrParamRequired creates a new required parameter error.
func NewErrParamRequired(field string) *ErrParamRequired {
return &ErrParamRequired{
errInvalidParam{
code: ParamRequiredErrCode,
field: field,
msg: fmt.Sprintf("missing required field"),
},
}
}
// An ErrParamMinValue represents a minimum value parameter error.
type ErrParamMinValue struct {
errInvalidParam
min float64
}
// NewErrParamMinValue creates a new minimum value parameter error.
func NewErrParamMinValue(field string, min float64) *ErrParamMinValue {
return &ErrParamMinValue{
errInvalidParam: errInvalidParam{
code: ParamMinValueErrCode,
field: field,
msg: fmt.Sprintf("minimum field value of %v", min),
},
min: min,
}
}
// MinValue returns the field's require minimum value.
//
// float64 is returned for both int and float min values.
func (e *ErrParamMinValue) MinValue() float64 {
return e.min
}
// An ErrParamMinLen represents a minimum length parameter error.
type ErrParamMinLen struct {
errInvalidParam
min int
}
// NewErrParamMinLen creates a new minimum length parameter error.
func NewErrParamMinLen(field string, min int) *ErrParamMinLen {
return &ErrParamMinLen{
errInvalidParam: errInvalidParam{
code: ParamMinValueErrCode,
field: field,
msg: fmt.Sprintf("minimum field size of %v", min),
},
min: min,
}
}
// MinLen returns the field's required minimum length.
func (e *ErrParamMinLen) MinLen() int {
return e.min
}

2
vendor/github.com/aws/aws-sdk-go/aws/session/session.go generated vendored
View File

@ -86,7 +86,7 @@ func initHandlers(s *Session) {
//
// Example:
// // Create a copy of the current session, configured for the us-west-2 region.
// sess.Copy(&aws.Config{Region: aws.String("us-west-2"})
// sess.Copy(&aws.Config{Region: aws.String("us-west-2")})
func (s *Session) Copy(cfgs ...*aws.Config) *Session {
newSession := &Session{
Config: s.Config.Copy(cfgs...),

82
vendor/github.com/aws/aws-sdk-go/aws/signer/v4/header_rules.go generated vendored Normal file
View File

@ -0,0 +1,82 @@
package v4
import (
"net/http"
"strings"
)
// validator houses a set of rule needed for validation of a
// string value
type rules []rule
// rule interface allows for more flexible rules and just simply
// checks whether or not a value adheres to that rule
type rule interface {
IsValid(value string) bool
}
// IsValid will iterate through all rules and see if any rules
// apply to the value and supports nested rules
func (r rules) IsValid(value string) bool {
for _, rule := range r {
if rule.IsValid(value) {
return true
}
}
return false
}
// mapRule generic rule for maps
type mapRule map[string]struct{}
// IsValid for the map rule satisfies whether it exists in the map
func (m mapRule) IsValid(value string) bool {
_, ok := m[value]
return ok
}
// whitelist is a generic rule for whitelisting
type whitelist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (w whitelist) IsValid(value string) bool {
return w.rule.IsValid(value)
}
// blacklist is a generic rule for blacklisting
type blacklist struct {
rule
}
// IsValid for whitelist checks if the value is within the whitelist
func (b blacklist) IsValid(value string) bool {
return !b.rule.IsValid(value)
}
type patterns []string
// IsValid for patterns checks each pattern and returns if a match has
// been found
func (p patterns) IsValid(value string) bool {
for _, pattern := range p {
if strings.HasPrefix(http.CanonicalHeaderKey(value), pattern) {
return true
}
}
return false
}
// inclusiveRules rules allow for rules to depend on one another
type inclusiveRules []rule
// IsValid will return true if all rules are true
func (r inclusiveRules) IsValid(value string) bool {
for _, rule := range r {
if !rule.IsValid(value) {
return false
}
}
return true
}

644
vendor/github.com/aws/aws-sdk-go/aws/signer/v4/v4.go generated vendored Normal file
View File

@ -0,0 +1,644 @@
// Package v4 implements signing for AWS V4 signer
//
// Provides request signing for request that need to be signed with
// AWS V4 Signatures.
package v4
import (
"bytes"
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/rest"
)
const (
authHeaderPrefix = "AWS4-HMAC-SHA256"
timeFormat = "20060102T150405Z"
shortTimeFormat = "20060102"
// emptyStringSHA256 is a SHA256 of an empty string
emptyStringSHA256 = `e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855`
)
var ignoredHeaders = rules{
blacklist{
mapRule{
"Authorization": struct{}{},
"User-Agent": struct{}{},
},
},
}
// requiredSignedHeaders is a whitelist for build canonical headers.
var requiredSignedHeaders = rules{
whitelist{
mapRule{
"Cache-Control": struct{}{},
"Content-Disposition": struct{}{},
"Content-Encoding": struct{}{},
"Content-Language": struct{}{},
"Content-Md5": struct{}{},
"Content-Type": struct{}{},
"Expires": struct{}{},
"If-Match": struct{}{},
"If-Modified-Since": struct{}{},
"If-None-Match": struct{}{},
"If-Unmodified-Since": struct{}{},
"Range": struct{}{},
"X-Amz-Acl": struct{}{},
"X-Amz-Copy-Source": struct{}{},
"X-Amz-Copy-Source-If-Match": struct{}{},
"X-Amz-Copy-Source-If-Modified-Since": struct{}{},
"X-Amz-Copy-Source-If-None-Match": struct{}{},
"X-Amz-Copy-Source-If-Unmodified-Since": struct{}{},
"X-Amz-Copy-Source-Range": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Copy-Source-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Grant-Full-control": struct{}{},
"X-Amz-Grant-Read": struct{}{},
"X-Amz-Grant-Read-Acp": struct{}{},
"X-Amz-Grant-Write": struct{}{},
"X-Amz-Grant-Write-Acp": struct{}{},
"X-Amz-Metadata-Directive": struct{}{},
"X-Amz-Mfa": struct{}{},
"X-Amz-Request-Payer": struct{}{},
"X-Amz-Server-Side-Encryption": struct{}{},
"X-Amz-Server-Side-Encryption-Aws-Kms-Key-Id": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Algorithm": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key": struct{}{},
"X-Amz-Server-Side-Encryption-Customer-Key-Md5": struct{}{},
"X-Amz-Storage-Class": struct{}{},
"X-Amz-Website-Redirect-Location": struct{}{},
},
},
patterns{"X-Amz-Meta-"},
}
// allowedHoisting is a whitelist for build query headers. The boolean value
// represents whether or not it is a pattern.
var allowedQueryHoisting = inclusiveRules{
blacklist{requiredSignedHeaders},
patterns{"X-Amz-"},
}
// Signer applies AWS v4 signing to given request. Use this to sign requests
// that need to be signed with AWS V4 Signatures.
type Signer struct {
// The authentication credentials the request will be signed against.
// This value must be set to sign requests.
Credentials *credentials.Credentials
// Sets the log level the signer should use when reporting information to
// the logger. If the logger is nil nothing will be logged. See
// aws.LogLevelType for more information on available logging levels
//
// By default nothing will be logged.
Debug aws.LogLevelType
// The logger loging information will be written to. If there the logger
// is nil, nothing will be logged.
Logger aws.Logger
// Disables the Signer's moving HTTP header key/value pairs from the HTTP
// request header to the request's query string. This is most commonly used
// with pre-signed requests preventing headers from being added to the
// request's query string.
DisableHeaderHoisting bool
// currentTimeFn returns the time value which represents the current time.
// This value should only be used for testing. If it is nil the default
// time.Now will be used.
currentTimeFn func() time.Time
}
// NewSigner returns a Signer pointer configured with the credentials and optional
// option values provided. If not options are provided the Signer will use its
// default configuration.
func NewSigner(credentials *credentials.Credentials, options ...func(*Signer)) *Signer {
v4 := &Signer{
Credentials: credentials,
}
for _, option := range options {
option(v4)
}
return v4
}
type signingCtx struct {
ServiceName string
Region string
Request *http.Request
Body io.ReadSeeker
Query url.Values
Time time.Time
ExpireTime time.Duration
SignedHeaderVals http.Header
credValues credentials.Value
isPresign bool
formattedTime string
formattedShortTime string
bodyDigest string
signedHeaders string
canonicalHeaders string
canonicalString string
credentialString string
stringToSign string
signature string
authorization string
}
// Sign signs AWS v4 requests with the provided body, service name, region the
// request is made to, and time the request is signed at. The signTime allows
// you to specify that a request is signed for the future, and cannot be
// used until then.
//
// Returns a list of HTTP headers that were included in the signature or an
// error if signing the request failed. Generally for signed requests this value
// is not needed as the full request context will be captured by the http.Request
// value. It is included for reference though.
//
// Sign differs from Presign in that it will sign the request using HTTP
// header values. This type of signing is intended for http.Request values that
// will not be shared, or are shared in a way the header values on the request
// will not be lost.
//
// The requests body is an io.ReadSeeker so the SHA256 of the body can be
// generated. To bypass the signer computing the hash you can set the
// "X-Amz-Content-Sha256" header with a precomputed value. The signer will
// only compute the hash if the request header value is empty.
func (v4 Signer) Sign(r *http.Request, body io.ReadSeeker, service, region string, signTime time.Time) (http.Header, error) {
return v4.signWithBody(r, body, service, region, 0, signTime)
}
// Presign signs AWS v4 requests with the provided body, service name, region
// the request is made to, and time the request is signed at. The signTime
// allows you to specify that a request is signed for the future, and cannot
// be used until then.
//
// Returns a list of HTTP headers that were included in the signature or an
// error if signing the request failed. For presigned requests these headers
// and their values must be included on the HTTP request when it is made. This
// is helpful to know what header values need to be shared with the party the
// presigned request will be distributed to.
//
// Presign differs from Sign in that it will sign the request using query string
// instead of header values. This allows you to share the Presigned Request's
// URL with third parties, or distribute it throughout your system with minimal
// dependencies.
//
// Presign also takes an exp value which is the duration the
// signed request will be valid after the signing time. This is allows you to
// set when the request will expire.
//
// The requests body is an io.ReadSeeker so the SHA256 of the body can be
// generated. To bypass the signer computing the hash you can set the
// "X-Amz-Content-Sha256" header with a precomputed value. The signer will
// only compute the hash if the request header value is empty.
//
// Presigning a S3 request will not compute the body's SHA256 hash by default.
// This is done due to the general use case for S3 presigned URLs is to share
// PUT/GET capabilities. If you would like to include the body's SHA256 in the
// presigned request's signature you can set the "X-Amz-Content-Sha256"
// HTTP header and that will be included in the request's signature.
func (v4 Signer) Presign(r *http.Request, body io.ReadSeeker, service, region string, exp time.Duration, signTime time.Time) (http.Header, error) {
return v4.signWithBody(r, body, service, region, exp, signTime)
}
func (v4 Signer) signWithBody(r *http.Request, body io.ReadSeeker, service, region string, exp time.Duration, signTime time.Time) (http.Header, error) {
currentTimeFn := v4.currentTimeFn
if currentTimeFn == nil {
currentTimeFn = time.Now
}
ctx := &signingCtx{
Request: r,
Body: body,
Query: r.URL.Query(),
Time: signTime,
ExpireTime: exp,
isPresign: exp != 0,
ServiceName: service,
Region: region,
}
if ctx.isRequestSigned() {
if !v4.Credentials.IsExpired() && currentTimeFn().Before(ctx.Time.Add(10*time.Minute)) {
// If the request is already signed, and the credentials have not
// expired, and the request is not too old ignore the signing request.
return ctx.SignedHeaderVals, nil
}
ctx.Time = currentTimeFn()
ctx.handlePresignRemoval()
}
var err error
ctx.credValues, err = v4.Credentials.Get()
if err != nil {
return http.Header{}, err
}
ctx.assignAmzQueryValues()
ctx.build(v4.DisableHeaderHoisting)
if v4.Debug.Matches(aws.LogDebugWithSigning) {
v4.logSigningInfo(ctx)
}
return ctx.SignedHeaderVals, nil
}
func (ctx *signingCtx) handlePresignRemoval() {
if !ctx.isPresign {
return
}
// The credentials have expired for this request. The current signing
// is invalid, and needs to be request because the request will fail.
ctx.removePresign()
// Update the request's query string to ensure the values stays in
// sync in the case retrieving the new credentials fails.
ctx.Request.URL.RawQuery = ctx.Query.Encode()
}
func (ctx *signingCtx) assignAmzQueryValues() {
if ctx.isPresign {
ctx.Query.Set("X-Amz-Algorithm", authHeaderPrefix)
if ctx.credValues.SessionToken != "" {
ctx.Query.Set("X-Amz-Security-Token", ctx.credValues.SessionToken)
} else {
ctx.Query.Del("X-Amz-Security-Token")
}
return
}
if ctx.credValues.SessionToken != "" {
ctx.Request.Header.Set("X-Amz-Security-Token", ctx.credValues.SessionToken)
}
}
// SignRequestHandler is a named request handler the SDK will use to sign
// service client request with using the V4 signature.
var SignRequestHandler = request.NamedHandler{
Name: "v4.SignRequestHandler", Fn: SignSDKRequest,
}
// SignSDKRequest signs an AWS request with the V4 signature. This
// request handler is bested used only with the SDK's built in service client's
// API operation requests.
//
// This function should not be used on its on its own, but in conjunction with
// an AWS service client's API operation call. To sign a standalone request
// not created by a service client's API operation method use the "Sign" or
// "Presign" functions of the "Signer" type.
//
// If the credentials of the request's config are set to
// credentials.AnonymousCredentials the request will not be signed.
func SignSDKRequest(req *request.Request) {
signSDKRequestWithCurrTime(req, time.Now)
}
func signSDKRequestWithCurrTime(req *request.Request, curTimeFn func() time.Time) {
// If the request does not need to be signed ignore the signing of the
// request if the AnonymousCredentials object is used.
if req.Config.Credentials == credentials.AnonymousCredentials {
return
}
region := req.ClientInfo.SigningRegion
if region == "" {
region = aws.StringValue(req.Config.Region)
}
name := req.ClientInfo.SigningName
if name == "" {
name = req.ClientInfo.ServiceName
}
v4 := NewSigner(req.Config.Credentials, func(v4 *Signer) {
v4.Debug = req.Config.LogLevel.Value()
v4.Logger = req.Config.Logger
v4.DisableHeaderHoisting = req.NotHoist
v4.currentTimeFn = curTimeFn
})
signingTime := req.Time
if !req.LastSignedAt.IsZero() {
signingTime = req.LastSignedAt
}
signedHeaders, err := v4.signWithBody(req.HTTPRequest, req.Body, name, region, req.ExpireTime, signingTime)
if err != nil {
req.Error = err
req.SignedHeaderVals = nil
return
}
req.SignedHeaderVals = signedHeaders
req.LastSignedAt = curTimeFn()
}
const logSignInfoMsg = `DEBUG: Request Signiture:
---[ CANONICAL STRING ]-----------------------------
%s
---[ STRING TO SIGN ]--------------------------------
%s%s
-----------------------------------------------------`
const logSignedURLMsg = `
---[ SIGNED URL ]------------------------------------
%s`
func (v4 *Signer) logSigningInfo(ctx *signingCtx) {
signedURLMsg := ""
if ctx.isPresign {
signedURLMsg = fmt.Sprintf(logSignedURLMsg, ctx.Request.URL.String())
}
msg := fmt.Sprintf(logSignInfoMsg, ctx.canonicalString, ctx.stringToSign, signedURLMsg)
v4.Logger.Log(msg)
}
func (ctx *signingCtx) build(disableHeaderHoisting bool) {
ctx.buildTime() // no depends
ctx.buildCredentialString() // no depends
unsignedHeaders := ctx.Request.Header
if ctx.isPresign {
if !disableHeaderHoisting {
urlValues := url.Values{}
urlValues, unsignedHeaders = buildQuery(allowedQueryHoisting, unsignedHeaders) // no depends
for k := range urlValues {
ctx.Query[k] = urlValues[k]
}
}
}
ctx.buildBodyDigest()
ctx.buildCanonicalHeaders(ignoredHeaders, unsignedHeaders)
ctx.buildCanonicalString() // depends on canon headers / signed headers
ctx.buildStringToSign() // depends on canon string
ctx.buildSignature() // depends on string to sign
if ctx.isPresign {
ctx.Request.URL.RawQuery += "&X-Amz-Signature=" + ctx.signature
} else {
parts := []string{
authHeaderPrefix + " Credential=" + ctx.credValues.AccessKeyID + "/" + ctx.credentialString,
"SignedHeaders=" + ctx.signedHeaders,
"Signature=" + ctx.signature,
}
ctx.Request.Header.Set("Authorization", strings.Join(parts, ", "))
}
}
func (ctx *signingCtx) buildTime() {
ctx.formattedTime = ctx.Time.UTC().Format(timeFormat)
ctx.formattedShortTime = ctx.Time.UTC().Format(shortTimeFormat)
if ctx.isPresign {
duration := int64(ctx.ExpireTime / time.Second)
ctx.Query.Set("X-Amz-Date", ctx.formattedTime)
ctx.Query.Set("X-Amz-Expires", strconv.FormatInt(duration, 10))
} else {
ctx.Request.Header.Set("X-Amz-Date", ctx.formattedTime)
}
}
func (ctx *signingCtx) buildCredentialString() {
ctx.credentialString = strings.Join([]string{
ctx.formattedShortTime,
ctx.Region,
ctx.ServiceName,
"aws4_request",
}, "/")
if ctx.isPresign {
ctx.Query.Set("X-Amz-Credential", ctx.credValues.AccessKeyID+"/"+ctx.credentialString)
}
}
func buildQuery(r rule, header http.Header) (url.Values, http.Header) {
query := url.Values{}
unsignedHeaders := http.Header{}
for k, h := range header {
if r.IsValid(k) {
query[k] = h
} else {
unsignedHeaders[k] = h
}
}
return query, unsignedHeaders
}
func (ctx *signingCtx) buildCanonicalHeaders(r rule, header http.Header) {
var headers []string
headers = append(headers, "host")
for k, v := range header {
canonicalKey := http.CanonicalHeaderKey(k)
if !r.IsValid(canonicalKey) {
continue // ignored header
}
if ctx.SignedHeaderVals == nil {
ctx.SignedHeaderVals = make(http.Header)
}
lowerCaseKey := strings.ToLower(k)
if _, ok := ctx.SignedHeaderVals[lowerCaseKey]; ok {
// include additional values
ctx.SignedHeaderVals[lowerCaseKey] = append(ctx.SignedHeaderVals[lowerCaseKey], v...)
continue
}
headers = append(headers, lowerCaseKey)
ctx.SignedHeaderVals[lowerCaseKey] = v
}
sort.Strings(headers)
ctx.signedHeaders = strings.Join(headers, ";")
if ctx.isPresign {
ctx.Query.Set("X-Amz-SignedHeaders", ctx.signedHeaders)
}
headerValues := make([]string, len(headers))
for i, k := range headers {
if k == "host" {
headerValues[i] = "host:" + ctx.Request.URL.Host
} else {
headerValues[i] = k + ":" +
strings.Join(ctx.SignedHeaderVals[k], ",")
}
}
ctx.canonicalHeaders = strings.Join(stripExcessSpaces(headerValues), "\n")
}
func (ctx *signingCtx) buildCanonicalString() {
ctx.Request.URL.RawQuery = strings.Replace(ctx.Query.Encode(), "+", "%20", -1)
uri := ctx.Request.URL.Opaque
if uri != "" {
uri = "/" + strings.Join(strings.Split(uri, "/")[3:], "/")
} else {
uri = ctx.Request.URL.Path
}
if uri == "" {
uri = "/"
}
if ctx.ServiceName != "s3" {
uri = rest.EscapePath(uri, false)
}
ctx.canonicalString = strings.Join([]string{
ctx.Request.Method,
uri,
ctx.Request.URL.RawQuery,
ctx.canonicalHeaders + "\n",
ctx.signedHeaders,
ctx.bodyDigest,
}, "\n")
}
func (ctx *signingCtx) buildStringToSign() {
ctx.stringToSign = strings.Join([]string{
authHeaderPrefix,
ctx.formattedTime,
ctx.credentialString,
hex.EncodeToString(makeSha256([]byte(ctx.canonicalString))),
}, "\n")
}
func (ctx *signingCtx) buildSignature() {
secret := ctx.credValues.SecretAccessKey
date := makeHmac([]byte("AWS4"+secret), []byte(ctx.formattedShortTime))
region := makeHmac(date, []byte(ctx.Region))
service := makeHmac(region, []byte(ctx.ServiceName))
credentials := makeHmac(service, []byte("aws4_request"))
signature := makeHmac(credentials, []byte(ctx.stringToSign))
ctx.signature = hex.EncodeToString(signature)
}
func (ctx *signingCtx) buildBodyDigest() {
hash := ctx.Request.Header.Get("X-Amz-Content-Sha256")
if hash == "" {
if ctx.isPresign && ctx.ServiceName == "s3" {
hash = "UNSIGNED-PAYLOAD"
} else if ctx.Body == nil {
hash = emptyStringSHA256
} else {
hash = hex.EncodeToString(makeSha256Reader(ctx.Body))
}
if ctx.ServiceName == "s3" {
ctx.Request.Header.Set("X-Amz-Content-Sha256", hash)
}
}
ctx.bodyDigest = hash
}
// isRequestSigned returns if the request is currently signed or presigned
func (ctx *signingCtx) isRequestSigned() bool {
if ctx.isPresign && ctx.Query.Get("X-Amz-Signature") != "" {
return true
}
if ctx.Request.Header.Get("Authorization") != "" {
return true
}
return false
}
// unsign removes signing flags for both signed and presigned requests.
func (ctx *signingCtx) removePresign() {
ctx.Query.Del("X-Amz-Algorithm")
ctx.Query.Del("X-Amz-Signature")
ctx.Query.Del("X-Amz-Security-Token")
ctx.Query.Del("X-Amz-Date")
ctx.Query.Del("X-Amz-Expires")
ctx.Query.Del("X-Amz-Credential")
ctx.Query.Del("X-Amz-SignedHeaders")
}
func makeHmac(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256(data []byte) []byte {
hash := sha256.New()
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256Reader(reader io.ReadSeeker) []byte {
hash := sha256.New()
start, _ := reader.Seek(0, 1)
defer reader.Seek(start, 0)
io.Copy(hash, reader)
return hash.Sum(nil)
}
const doubleSpaces = " "
var doubleSpaceBytes = []byte(doubleSpaces)
func stripExcessSpaces(headerVals []string) []string {
vals := make([]string, len(headerVals))
for i, str := range headerVals {
// Trim leading and trailing spaces
trimmed := strings.TrimSpace(str)
idx := strings.Index(trimmed, doubleSpaces)
var buf []byte
for idx > -1 {
// Multiple adjacent spaces found
if buf == nil {
// first time create the buffer
buf = []byte(trimmed)
}
stripToIdx := -1
for j := idx + 1; j < len(buf); j++ {
if buf[j] != ' ' {
buf = append(buf[:idx+1], buf[j:]...)
stripToIdx = j
break
}
}
if stripToIdx >= 0 {
idx = bytes.Index(buf[stripToIdx:], doubleSpaceBytes)
if idx >= 0 {
idx += stripToIdx
}
} else {
idx = -1
}
}
if buf != nil {
vals[i] = string(buf)
} else {
vals[i] = trimmed
}
}
return vals
}

30
vendor/github.com/aws/aws-sdk-go/aws/types.go generated vendored
View File

@ -61,23 +61,41 @@ func (r ReaderSeekerCloser) Close() error {
type WriteAtBuffer struct {
buf []byte
m sync.Mutex
// GrowthCoeff defines the growth rate of the internal buffer. By
// default, the growth rate is 1, where expanding the internal
// buffer will allocate only enough capacity to fit the new expected
// length.
GrowthCoeff float64
}
// NewWriteAtBuffer creates a WriteAtBuffer with an internal buffer
// provided by buf.
func NewWriteAtBuffer(buf []byte) *WriteAtBuffer {
return &WriteAtBuffer{buf: buf}
}
// WriteAt writes a slice of bytes to a buffer starting at the position provided
// The number of bytes written will be returned, or error. Can overwrite previous
// written slices if the write ats overlap.
func (b *WriteAtBuffer) WriteAt(p []byte, pos int64) (n int, err error) {
pLen := len(p)
expLen := pos + int64(pLen)
b.m.Lock()
defer b.m.Unlock()
expLen := pos + int64(len(p))
if int64(len(b.buf)) < expLen {
newBuf := make([]byte, expLen)
copy(newBuf, b.buf)
b.buf = newBuf
if int64(cap(b.buf)) < expLen {
if b.GrowthCoeff < 1 {
b.GrowthCoeff = 1
}
newBuf := make([]byte, expLen, int64(b.GrowthCoeff*float64(expLen)))
copy(newBuf, b.buf)
b.buf = newBuf
}
b.buf = b.buf[:expLen]
}
copy(b.buf[pos:], p)
return len(p), nil
return pLen, nil
}
// Bytes returns a slice of bytes written to the buffer.

2
vendor/github.com/aws/aws-sdk-go/aws/version.go generated vendored
View File

@ -5,4 +5,4 @@ package aws
const SDKName = "aws-sdk-go"
// SDKVersion is the version of this SDK
const SDKVersion = "1.0.11"
const SDKVersion = "1.2.7"

4
vendor/github.com/aws/aws-sdk-go/private/README.md generated vendored Normal file
View File

@ -0,0 +1,4 @@
## AWS SDK for Go Private packages ##
`private` is a collection of packages used internally by the SDK, and is subject to have breaking changes. This package is not `internal` so that if you really need to use its functionality, and understand breaking changes will be made, you are able to.
These packages will be refactored in the future so that the API generator and model parsers are exposed cleanly on their own. Making it easier for you to generate your own code based on the API models.

39
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints.json generated vendored
View File

@ -8,6 +8,9 @@
"endpoint": "{service}.{region}.amazonaws.com.cn",
"signatureVersion": "v4"
},
"cn-north-1/ec2metadata": {
"endpoint": "http://169.254.169.254/latest"
},
"us-gov-west-1/iam": {
"endpoint": "iam.us-gov.amazonaws.com"
},
@ -17,6 +20,9 @@
"us-gov-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"us-gov-west-1/ec2metadata": {
"endpoint": "http://169.254.169.254/latest"
},
"*/cloudfront": {
"endpoint": "cloudfront.amazonaws.com",
"signingRegion": "us-east-1"
@ -30,8 +36,7 @@
"signingRegion": "us-east-1"
},
"*/ec2metadata": {
"endpoint": "http://169.254.169.254/latest",
"signingRegion": "us-east-1"
"endpoint": "http://169.254.169.254/latest"
},
"*/iam": {
"endpoint": "iam.amazonaws.com",
@ -57,36 +62,14 @@
"endpoint": "sdb.amazonaws.com",
"signingRegion": "us-east-1"
},
"*/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"us-east-1/s3": {
"endpoint": "s3.amazonaws.com"
},
"us-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"us-west-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"eu-west-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-southeast-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-southeast-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-northeast-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"ap-northeast-2/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"sa-east-1/s3": {
"endpoint": "s3-{region}.amazonaws.com"
},
"eu-central-1/s3": {
"endpoint": "{service}.{region}.amazonaws.com",
"signatureVersion": "v4"
"endpoint": "{service}.{region}.amazonaws.com"
}
}
}

36
vendor/github.com/aws/aws-sdk-go/private/endpoints/endpoints_map.go generated vendored
View File

@ -31,8 +31,7 @@ var endpointsMap = endpointStruct{
SigningRegion: "us-east-1",
},
"*/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
SigningRegion: "us-east-1",
Endpoint: "http://169.254.169.254/latest",
},
"*/iam": {
Endpoint: "iam.amazonaws.com",
@ -46,6 +45,9 @@ var endpointsMap = endpointStruct{
Endpoint: "route53.amazonaws.com",
SigningRegion: "us-east-1",
},
"*/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"*/sts": {
Endpoint: "sts.amazonaws.com",
SigningRegion: "us-east-1",
@ -54,30 +56,15 @@ var endpointsMap = endpointStruct{
Endpoint: "waf.amazonaws.com",
SigningRegion: "us-east-1",
},
"ap-northeast-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-northeast-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-southeast-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"ap-southeast-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"cn-north-1/*": {
Endpoint: "{service}.{region}.amazonaws.com.cn",
},
"cn-north-1/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
},
"eu-central-1/s3": {
Endpoint: "{service}.{region}.amazonaws.com",
},
"eu-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"sa-east-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-east-1/s3": {
Endpoint: "s3.amazonaws.com",
},
@ -85,6 +72,9 @@ var endpointsMap = endpointStruct{
Endpoint: "sdb.amazonaws.com",
SigningRegion: "us-east-1",
},
"us-gov-west-1/ec2metadata": {
Endpoint: "http://169.254.169.254/latest",
},
"us-gov-west-1/iam": {
Endpoint: "iam.us-gov.amazonaws.com",
},
@ -94,11 +84,5 @@ var endpointsMap = endpointStruct{
"us-gov-west-1/sts": {
Endpoint: "sts.us-gov-west-1.amazonaws.com",
},
"us-west-1/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
"us-west-2/s3": {
Endpoint: "s3-{region}.amazonaws.com",
},
},
}

3
vendor/github.com/aws/aws-sdk-go/private/protocol/query/build.go generated vendored
View File

@ -11,6 +11,9 @@ import (
"github.com/aws/aws-sdk-go/private/protocol/query/queryutil"
)
// BuildHandler is a named request handler for building query protocol requests
var BuildHandler = request.NamedHandler{Name: "awssdk.query.Build", Fn: Build}
// Build builds a request for an AWS Query service.
func Build(r *request.Request) {
body := url.Values{

15
vendor/github.com/aws/aws-sdk-go/private/protocol/query/queryutil/queryutil.go generated vendored
View File

@ -9,6 +9,8 @@ import (
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// Parse parses an object i and fills a url.Values object. The isEC2 flag
@ -68,14 +70,19 @@ func (q *queryParser) parseStruct(v url.Values, value reflect.Value, prefix stri
t := value.Type()
for i := 0; i < value.NumField(); i++ {
if c := t.Field(i).Name[0:1]; strings.ToLower(c) == c {
elemValue := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
elemValue := elemOf(value.Field(i))
field := t.Field(i)
var name string
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
elemValue = reflect.ValueOf(token)
}
var name string
if q.isEC2 {
name = field.Tag.Get("queryName")
}

6
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal.go generated vendored
View File

@ -10,6 +10,12 @@ import (
"github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil"
)
// UnmarshalHandler is a named request handler for unmarshaling query protocol requests
var UnmarshalHandler = request.NamedHandler{Name: "awssdk.query.Unmarshal", Fn: Unmarshal}
// UnmarshalMetaHandler is a named request handler for unmarshaling query protocol request metadata
var UnmarshalMetaHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalMeta", Fn: UnmarshalMeta}
// Unmarshal unmarshals a response for an AWS Query service.
func Unmarshal(r *request.Request) {
defer r.HTTPResponse.Body.Close()

41
vendor/github.com/aws/aws-sdk-go/private/protocol/query/unmarshal_error.go generated vendored
View File

@ -2,7 +2,7 @@ package query
import (
"encoding/xml"
"io"
"io/ioutil"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/request"
@ -15,15 +15,27 @@ type xmlErrorResponse struct {
RequestID string `xml:"RequestId"`
}
type xmlServiceUnavailableResponse struct {
XMLName xml.Name `xml:"ServiceUnavailableException"`
}
// UnmarshalErrorHandler is a name request handler to unmarshal request errors
var UnmarshalErrorHandler = request.NamedHandler{Name: "awssdk.query.UnmarshalError", Fn: UnmarshalError}
// UnmarshalError unmarshals an error response for an AWS Query service.
func UnmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
resp := &xmlErrorResponse{}
err := xml.NewDecoder(r.HTTPResponse.Body).Decode(resp)
if err != nil && err != io.EOF {
r.Error = awserr.New("SerializationError", "failed to decode query XML error response", err)
} else {
bodyBytes, err := ioutil.ReadAll(r.HTTPResponse.Body)
if err != nil {
r.Error = awserr.New("SerializationError", "failed to read from query HTTP response body", err)
return
}
// First check for specific error
resp := xmlErrorResponse{}
decodeErr := xml.Unmarshal(bodyBytes, &resp)
if decodeErr == nil {
reqID := resp.RequestID
if reqID == "" {
reqID = r.RequestID
@ -33,5 +45,22 @@ func UnmarshalError(r *request.Request) {
r.HTTPResponse.StatusCode,
reqID,
)
return
}
// Check for unhandled error
servUnavailResp := xmlServiceUnavailableResponse{}
unavailErr := xml.Unmarshal(bodyBytes, &servUnavailResp)
if unavailErr == nil {
r.Error = awserr.NewRequestFailure(
awserr.New("ServiceUnavailableException", "service is unavailable", nil),
r.HTTPResponse.StatusCode,
r.RequestID,
)
return
}
// Failed to retrieve any error message from the response body
r.Error = awserr.New("SerializationError",
"failed to decode query XML error response", decodeErr)
}

3
vendor/github.com/aws/aws-sdk-go/private/protocol/rest/build.go generated vendored
View File

@ -222,8 +222,7 @@ func EscapePath(path string, encodeSep bool) string {
if noEscape[c] || (c == '/' && !encodeSep) {
buf.WriteByte(c)
} else {
buf.WriteByte('%')
buf.WriteString(strings.ToUpper(strconv.FormatUint(uint64(c), 16)))
fmt.Fprintf(&buf, "%%%02X", c)
}
}
return buf.String()

16
vendor/github.com/aws/aws-sdk-go/private/protocol/xml/xmlutil/build.go generated vendored
View File

@ -8,8 +8,9 @@ import (
"reflect"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/private/protocol"
)
// BuildXML will serialize params into an xml.Encoder.
@ -120,18 +121,23 @@ func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag refl
t := value.Type()
for i := 0; i < value.NumField(); i++ {
if c := t.Field(i).Name[0:1]; strings.ToLower(c) == c {
member := elemOf(value.Field(i))
field := t.Field(i)
if field.PkgPath != "" {
continue // ignore unexported fields
}
member := elemOf(value.Field(i))
field := t.Field(i)
mTag := field.Tag
if mTag.Get("location") != "" { // skip non-body members
continue
}
if protocol.CanSetIdempotencyToken(value.Field(i), field) {
token := protocol.GetIdempotencyToken()
member = reflect.ValueOf(token)
}
memberName := mTag.Get("locationName")
if memberName == "" {
memberName = field.Name

365
vendor/github.com/aws/aws-sdk-go/private/signer/v4/v4.go generated vendored
View File

@ -1,365 +0,0 @@
// Package v4 implements signing for AWS V4 signer
package v4
import (
"crypto/hmac"
"crypto/sha256"
"encoding/hex"
"fmt"
"io"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/private/protocol/rest"
)
const (
authHeaderPrefix = "AWS4-HMAC-SHA256"
timeFormat = "20060102T150405Z"
shortTimeFormat = "20060102"
)
var ignoredHeaders = map[string]bool{
"Authorization": true,
"Content-Type": true,
"Content-Length": true,
"User-Agent": true,
}
type signer struct {
Request *http.Request
Time time.Time
ExpireTime time.Duration
ServiceName string
Region string
CredValues credentials.Value
Credentials *credentials.Credentials
Query url.Values
Body io.ReadSeeker
Debug aws.LogLevelType
Logger aws.Logger
isPresign bool
formattedTime string
formattedShortTime string
signedHeaders string
canonicalHeaders string
canonicalString string
credentialString string
stringToSign string
signature string
authorization string
}
// Sign requests with signature version 4.
//
// Will sign the requests with the service config's Credentials object
// Signing is skipped if the credentials is the credentials.AnonymousCredentials
// object.
func Sign(req *request.Request) {
// If the request does not need to be signed ignore the signing of the
// request if the AnonymousCredentials object is used.
if req.Config.Credentials == credentials.AnonymousCredentials {
return
}
region := req.ClientInfo.SigningRegion
if region == "" {
region = aws.StringValue(req.Config.Region)
}
name := req.ClientInfo.SigningName
if name == "" {
name = req.ClientInfo.ServiceName
}
s := signer{
Request: req.HTTPRequest,
Time: req.Time,
ExpireTime: req.ExpireTime,
Query: req.HTTPRequest.URL.Query(),
Body: req.Body,
ServiceName: name,
Region: region,
Credentials: req.Config.Credentials,
Debug: req.Config.LogLevel.Value(),
Logger: req.Config.Logger,
}
req.Error = s.sign()
}
func (v4 *signer) sign() error {
if v4.ExpireTime != 0 {
v4.isPresign = true
}
if v4.isRequestSigned() {
if !v4.Credentials.IsExpired() {
// If the request is already signed, and the credentials have not
// expired yet ignore the signing request.
return nil
}
// The credentials have expired for this request. The current signing
// is invalid, and needs to be request because the request will fail.
if v4.isPresign {
v4.removePresign()
// Update the request's query string to ensure the values stays in
// sync in the case retrieving the new credentials fails.
v4.Request.URL.RawQuery = v4.Query.Encode()
}
}
var err error
v4.CredValues, err = v4.Credentials.Get()
if err != nil {
return err
}
if v4.isPresign {
v4.Query.Set("X-Amz-Algorithm", authHeaderPrefix)
if v4.CredValues.SessionToken != "" {
v4.Query.Set("X-Amz-Security-Token", v4.CredValues.SessionToken)
} else {
v4.Query.Del("X-Amz-Security-Token")
}
} else if v4.CredValues.SessionToken != "" {
v4.Request.Header.Set("X-Amz-Security-Token", v4.CredValues.SessionToken)
}
v4.build()
if v4.Debug.Matches(aws.LogDebugWithSigning) {
v4.logSigningInfo()
}
return nil
}
const logSignInfoMsg = `DEBUG: Request Signiture:
---[ CANONICAL STRING ]-----------------------------
%s
---[ STRING TO SIGN ]--------------------------------
%s%s
-----------------------------------------------------`
const logSignedURLMsg = `
---[ SIGNED URL ]------------------------------------
%s`
func (v4 *signer) logSigningInfo() {
signedURLMsg := ""
if v4.isPresign {
signedURLMsg = fmt.Sprintf(logSignedURLMsg, v4.Request.URL.String())
}
msg := fmt.Sprintf(logSignInfoMsg, v4.canonicalString, v4.stringToSign, signedURLMsg)
v4.Logger.Log(msg)
}
func (v4 *signer) build() {
v4.buildTime() // no depends
v4.buildCredentialString() // no depends
if v4.isPresign {
v4.buildQuery() // no depends
}
v4.buildCanonicalHeaders() // depends on cred string
v4.buildCanonicalString() // depends on canon headers / signed headers
v4.buildStringToSign() // depends on canon string
v4.buildSignature() // depends on string to sign
if v4.isPresign {
v4.Request.URL.RawQuery += "&X-Amz-Signature=" + v4.signature
} else {
parts := []string{
authHeaderPrefix + " Credential=" + v4.CredValues.AccessKeyID + "/" + v4.credentialString,
"SignedHeaders=" + v4.signedHeaders,
"Signature=" + v4.signature,
}
v4.Request.Header.Set("Authorization", strings.Join(parts, ", "))
}
}
func (v4 *signer) buildTime() {
v4.formattedTime = v4.Time.UTC().Format(timeFormat)
v4.formattedShortTime = v4.Time.UTC().Format(shortTimeFormat)
if v4.isPresign {
duration := int64(v4.ExpireTime / time.Second)
v4.Query.Set("X-Amz-Date", v4.formattedTime)
v4.Query.Set("X-Amz-Expires", strconv.FormatInt(duration, 10))
} else {
v4.Request.Header.Set("X-Amz-Date", v4.formattedTime)
}
}
func (v4 *signer) buildCredentialString() {
v4.credentialString = strings.Join([]string{
v4.formattedShortTime,
v4.Region,
v4.ServiceName,
"aws4_request",
}, "/")
if v4.isPresign {
v4.Query.Set("X-Amz-Credential", v4.CredValues.AccessKeyID+"/"+v4.credentialString)
}
}
func (v4 *signer) buildQuery() {
for k, h := range v4.Request.Header {
if strings.HasPrefix(http.CanonicalHeaderKey(k), "X-Amz-") {
continue // never hoist x-amz-* headers, they must be signed
}
if _, ok := ignoredHeaders[http.CanonicalHeaderKey(k)]; ok {
continue // never hoist ignored headers
}
v4.Request.Header.Del(k)
v4.Query.Del(k)
for _, v := range h {
v4.Query.Add(k, v)
}
}
}
func (v4 *signer) buildCanonicalHeaders() {
var headers []string
headers = append(headers, "host")
for k := range v4.Request.Header {
if _, ok := ignoredHeaders[http.CanonicalHeaderKey(k)]; ok {
continue // ignored header
}
headers = append(headers, strings.ToLower(k))
}
sort.Strings(headers)
v4.signedHeaders = strings.Join(headers, ";")
if v4.isPresign {
v4.Query.Set("X-Amz-SignedHeaders", v4.signedHeaders)
}
headerValues := make([]string, len(headers))
for i, k := range headers {
if k == "host" {
headerValues[i] = "host:" + v4.Request.URL.Host
} else {
headerValues[i] = k + ":" +
strings.Join(v4.Request.Header[http.CanonicalHeaderKey(k)], ",")
}
}
v4.canonicalHeaders = strings.Join(headerValues, "\n")
}
func (v4 *signer) buildCanonicalString() {
v4.Request.URL.RawQuery = strings.Replace(v4.Query.Encode(), "+", "%20", -1)
uri := v4.Request.URL.Opaque
if uri != "" {
uri = "/" + strings.Join(strings.Split(uri, "/")[3:], "/")
} else {
uri = v4.Request.URL.Path
}
if uri == "" {
uri = "/"
}
if v4.ServiceName != "s3" {
uri = rest.EscapePath(uri, false)
}
v4.canonicalString = strings.Join([]string{
v4.Request.Method,
uri,
v4.Request.URL.RawQuery,
v4.canonicalHeaders + "\n",
v4.signedHeaders,
v4.bodyDigest(),
}, "\n")
}
func (v4 *signer) buildStringToSign() {
v4.stringToSign = strings.Join([]string{
authHeaderPrefix,
v4.formattedTime,
v4.credentialString,
hex.EncodeToString(makeSha256([]byte(v4.canonicalString))),
}, "\n")
}
func (v4 *signer) buildSignature() {
secret := v4.CredValues.SecretAccessKey
date := makeHmac([]byte("AWS4"+secret), []byte(v4.formattedShortTime))
region := makeHmac(date, []byte(v4.Region))
service := makeHmac(region, []byte(v4.ServiceName))
credentials := makeHmac(service, []byte("aws4_request"))
signature := makeHmac(credentials, []byte(v4.stringToSign))
v4.signature = hex.EncodeToString(signature)
}
func (v4 *signer) bodyDigest() string {
hash := v4.Request.Header.Get("X-Amz-Content-Sha256")
if hash == "" {
if v4.isPresign && v4.ServiceName == "s3" {
hash = "UNSIGNED-PAYLOAD"
} else if v4.Body == nil {
hash = hex.EncodeToString(makeSha256([]byte{}))
} else {
hash = hex.EncodeToString(makeSha256Reader(v4.Body))
}
v4.Request.Header.Add("X-Amz-Content-Sha256", hash)
}
return hash
}
// isRequestSigned returns if the request is currently signed or presigned
func (v4 *signer) isRequestSigned() bool {
if v4.isPresign && v4.Query.Get("X-Amz-Signature") != "" {
return true
}
if v4.Request.Header.Get("Authorization") != "" {
return true
}
return false
}
// unsign removes signing flags for both signed and presigned requests.
func (v4 *signer) removePresign() {
v4.Query.Del("X-Amz-Algorithm")
v4.Query.Del("X-Amz-Signature")
v4.Query.Del("X-Amz-Security-Token")
v4.Query.Del("X-Amz-Date")
v4.Query.Del("X-Amz-Expires")
v4.Query.Del("X-Amz-Credential")
v4.Query.Del("X-Amz-SignedHeaders")
}
func makeHmac(key []byte, data []byte) []byte {
hash := hmac.New(sha256.New, key)
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256(data []byte) []byte {
hash := sha256.New()
hash.Write(data)
return hash.Sum(nil)
}
func makeSha256Reader(reader io.ReadSeeker) []byte {
hash := sha256.New()
start, _ := reader.Seek(0, 1)
defer reader.Seek(start, 0)
io.Copy(hash, reader)
return hash.Sum(nil)
}

7
vendor/github.com/aws/aws-sdk-go/sdk.go generated vendored Normal file
View File

@ -0,0 +1,7 @@
// Package sdk is the official AWS SDK for the Go programming language.
//
// See our Developer Guide for information for on getting started and using
// the SDK.
//
// https://github.com/aws/aws-sdk-go/wiki
package sdk

1545
vendor/github.com/aws/aws-sdk-go/service/cloudFront/api.go → vendor/github.com/aws/aws-sdk-go/service/cloudfront/api.go generated vendored
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File diff suppressed because it is too large Load Diff

4
vendor/github.com/aws/aws-sdk-go/service/cloudFront/service.go → vendor/github.com/aws/aws-sdk-go/service/cloudfront/service.go generated vendored
View File

@ -7,8 +7,8 @@ import (
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/signer/v4"
"github.com/aws/aws-sdk-go/private/protocol/restxml"
"github.com/aws/aws-sdk-go/private/signer/v4"
)
// CloudFront is a client for CloudFront.
@ -58,7 +58,7 @@ func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
}
// Handlers
svc.Handlers.Sign.PushBack(v4.Sign)
svc.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
svc.Handlers.Build.PushBackNamed(restxml.BuildHandler)
svc.Handlers.Unmarshal.PushBackNamed(restxml.UnmarshalHandler)
svc.Handlers.UnmarshalMeta.PushBackNamed(restxml.UnmarshalMetaHandler)

0
vendor/github.com/aws/aws-sdk-go/service/cloudFront/waiters.go → vendor/github.com/aws/aws-sdk-go/service/cloudfront/waiters.go generated vendored
View File

5
vendor/github.com/aws/aws-sdk-go/service/generate.go generated vendored Normal file
View File

@ -0,0 +1,5 @@
// Package service contains automatically generated AWS clients.
package service
//go:generate go run ../private/model/cli/gen-api/main.go -path=../service ../models/apis/*/*/api-2.json
//go:generate gofmt -s -w ../service

3396
vendor/github.com/aws/aws-sdk-go/service/s3/api.go generated vendored
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57
vendor/github.com/aws/aws-sdk-go/service/s3/customizations.go generated vendored
View File

@ -6,32 +6,41 @@ import (
)
func init() {
initClient = func(c *client.Client) {
// Support building custom host-style bucket endpoints
c.Handlers.Build.PushFront(updateHostWithBucket)
initClient = defaultInitClientFn
initRequest = defaultInitRequestFn
}
// Require SSL when using SSE keys
c.Handlers.Validate.PushBack(validateSSERequiresSSL)
c.Handlers.Build.PushBack(computeSSEKeys)
func defaultInitClientFn(c *client.Client) {
// Support building custom endpoints based on config
c.Handlers.Build.PushFront(updateEndpointForS3Config)
// S3 uses custom error unmarshaling logic
c.Handlers.UnmarshalError.Clear()
c.Handlers.UnmarshalError.PushBack(unmarshalError)
}
// Require SSL when using SSE keys
c.Handlers.Validate.PushBack(validateSSERequiresSSL)
c.Handlers.Build.PushBack(computeSSEKeys)
initRequest = func(r *request.Request) {
switch r.Operation.Name {
case opPutBucketCors, opPutBucketLifecycle, opPutBucketPolicy, opPutBucketTagging, opDeleteObjects, opPutBucketLifecycleConfiguration:
// These S3 operations require Content-MD5 to be set
r.Handlers.Build.PushBack(contentMD5)
case opGetBucketLocation:
// GetBucketLocation has custom parsing logic
r.Handlers.Unmarshal.PushFront(buildGetBucketLocation)
case opCreateBucket:
// Auto-populate LocationConstraint with current region
r.Handlers.Validate.PushFront(populateLocationConstraint)
case opCopyObject, opUploadPartCopy, opCompleteMultipartUpload:
r.Handlers.Unmarshal.PushFront(copyMultipartStatusOKUnmarhsalError)
}
// S3 uses custom error unmarshaling logic
c.Handlers.UnmarshalError.Clear()
c.Handlers.UnmarshalError.PushBack(unmarshalError)
}
func defaultInitRequestFn(r *request.Request) {
// Add reuest handlers for specific platforms.
// e.g. 100-continue support for PUT requests using Go 1.6
platformRequestHandlers(r)
switch r.Operation.Name {
case opPutBucketCors, opPutBucketLifecycle, opPutBucketPolicy,
opPutBucketTagging, opDeleteObjects, opPutBucketLifecycleConfiguration,
opPutBucketReplication:
// These S3 operations require Content-MD5 to be set
r.Handlers.Build.PushBack(contentMD5)
case opGetBucketLocation:
// GetBucketLocation has custom parsing logic
r.Handlers.Unmarshal.PushFront(buildGetBucketLocation)
case opCreateBucket:
// Auto-populate LocationConstraint with current region
r.Handlers.Validate.PushFront(populateLocationConstraint)
case opCopyObject, opUploadPartCopy, opCompleteMultipartUpload:
r.Handlers.Unmarshal.PushFront(copyMultipartStatusOKUnmarhsalError)
}
}

165
vendor/github.com/aws/aws-sdk-go/service/s3/host_style_bucket.go generated vendored
View File

@ -1,14 +1,124 @@
package s3
import (
"fmt"
"net/url"
"regexp"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/awsutil"
"github.com/aws/aws-sdk-go/aws/request"
)
// an operationBlacklist is a list of operation names that should a
// request handler should not be executed with.
type operationBlacklist []string
// Continue will return true of the Request's operation name is not
// in the blacklist. False otherwise.
func (b operationBlacklist) Continue(r *request.Request) bool {
for i := 0; i < len(b); i++ {
if b[i] == r.Operation.Name {
return false
}
}
return true
}
var accelerateOpBlacklist = operationBlacklist{
opListBuckets, opCreateBucket, opDeleteBucket,
}
// Request handler to automatically add the bucket name to the endpoint domain
// if possible. This style of bucket is valid for all bucket names which are
// DNS compatible and do not contain "."
func updateEndpointForS3Config(r *request.Request) {
forceHostStyle := aws.BoolValue(r.Config.S3ForcePathStyle)
accelerate := aws.BoolValue(r.Config.S3UseAccelerate)
if accelerate && accelerateOpBlacklist.Continue(r) {
if forceHostStyle {
if r.Config.Logger != nil {
r.Config.Logger.Log("ERROR: aws.Config.S3UseAccelerate is not compatible with aws.Config.S3ForcePathStyle, ignoring S3ForcePathStyle.")
}
}
updateEndpointForAccelerate(r)
} else if !forceHostStyle && r.Operation.Name != opGetBucketLocation {
updateEndpointForHostStyle(r)
}
}
func updateEndpointForHostStyle(r *request.Request) {
bucket, ok := bucketNameFromReqParams(r.Params)
if !ok {
// Ignore operation requests if the bucketname was not provided
// if this is an input validation error the validation handler
// will report it.
return
}
if !hostCompatibleBucketName(r.HTTPRequest.URL, bucket) {
// bucket name must be valid to put into the host
return
}
moveBucketToHost(r.HTTPRequest.URL, bucket)
}
func updateEndpointForAccelerate(r *request.Request) {
bucket, ok := bucketNameFromReqParams(r.Params)
if !ok {
// Ignore operation requests if the bucketname was not provided
// if this is an input validation error the validation handler
// will report it.
return
}
if !hostCompatibleBucketName(r.HTTPRequest.URL, bucket) {
r.Error = awserr.New("InvalidParameterException",
fmt.Sprintf("bucket name %s is not compatibile with S3 Accelerate", bucket),
nil)
return
}
// Change endpoint from s3(-[a-z0-1-])?.amazonaws.com to s3-accelerate.amazonaws.com
r.HTTPRequest.URL.Host = replaceHostRegion(r.HTTPRequest.URL.Host, "accelerate")
moveBucketToHost(r.HTTPRequest.URL, bucket)
}
// Attempts to retrieve the bucket name from the request input parameters.
// If no bucket is found, or the field is empty "", false will be returned.
func bucketNameFromReqParams(params interface{}) (string, bool) {
b, _ := awsutil.ValuesAtPath(params, "Bucket")
if len(b) == 0 {
return "", false
}
if bucket, ok := b[0].(*string); ok {
if bucketStr := aws.StringValue(bucket); bucketStr != "" {
return bucketStr, true
}
}
return "", false
}
// hostCompatibleBucketName returns true if the request should
// put the bucket in the host. This is false if S3ForcePathStyle is
// explicitly set or if the bucket is not DNS compatible.
func hostCompatibleBucketName(u *url.URL, bucket string) bool {
// Bucket might be DNS compatible but dots in the hostname will fail
// certificate validation, so do not use host-style.
if u.Scheme == "https" && strings.Contains(bucket, ".") {
return false
}
// if the bucket is DNS compatible
return dnsCompatibleBucketName(bucket)
}
var reDomain = regexp.MustCompile(`^[a-z0-9][a-z0-9\.\-]{1,61}[a-z0-9]$`)
var reIPAddress = regexp.MustCompile(`^(\d+\.){3}\d+$`)
@ -20,41 +130,36 @@ func dnsCompatibleBucketName(bucket string) bool {
!strings.Contains(bucket, "..")
}
// hostStyleBucketName returns true if the request should put the bucket in
// the host. This is false if S3ForcePathStyle is explicitly set or if the
// bucket is not DNS compatible.
func hostStyleBucketName(r *request.Request, bucket string) bool {
if aws.BoolValue(r.Config.S3ForcePathStyle) {
return false
// moveBucketToHost moves the bucket name from the URI path to URL host.
func moveBucketToHost(u *url.URL, bucket string) {
u.Host = bucket + "." + u.Host
u.Path = strings.Replace(u.Path, "/{Bucket}", "", -1)
if u.Path == "" {
u.Path = "/"
}
// Bucket might be DNS compatible but dots in the hostname will fail
// certificate validation, so do not use host-style.
if r.HTTPRequest.URL.Scheme == "https" && strings.Contains(bucket, ".") {
return false
}
// GetBucketLocation should be able to be called from any region within
// a partition, and return the associated region of the bucket.
if r.Operation.Name == opGetBucketLocation {
return false
}
// Use host-style if the bucket is DNS compatible
return dnsCompatibleBucketName(bucket)
}
func updateHostWithBucket(r *request.Request) {
b, _ := awsutil.ValuesAtPath(r.Params, "Bucket")
if len(b) == 0 {
return
const s3HostPrefix = "s3"
// replaceHostRegion replaces the S3 region string in the host with the
// value provided. If v is empty the host prefix returned will be s3.
func replaceHostRegion(host, v string) string {
if !strings.HasPrefix(host, s3HostPrefix) {
return host
}
if bucket := b[0].(*string); aws.StringValue(bucket) != "" && hostStyleBucketName(r, *bucket) {
r.HTTPRequest.URL.Host = *bucket + "." + r.HTTPRequest.URL.Host
r.HTTPRequest.URL.Path = strings.Replace(r.HTTPRequest.URL.Path, "/{Bucket}", "", -1)
if r.HTTPRequest.URL.Path == "" {
r.HTTPRequest.URL.Path = "/"
suffix := host[len(s3HostPrefix):]
for i := len(s3HostPrefix); i < len(host); i++ {
if host[i] == '.' {
// Trim until '.' leave the it in place.
suffix = host[i:]
break
}
}
if len(v) == 0 {
return fmt.Sprintf("s3%s", suffix)
}
return fmt.Sprintf("s3-%s%s", v, suffix)
}

8
vendor/github.com/aws/aws-sdk-go/service/s3/platform_handlers.go generated vendored Normal file
View File

@ -0,0 +1,8 @@
// +build !go1.6
package s3
import "github.com/aws/aws-sdk-go/aws/request"
func platformRequestHandlers(r *request.Request) {
}

28
vendor/github.com/aws/aws-sdk-go/service/s3/platform_handlers_go1.6.go generated vendored Normal file
View File

@ -0,0 +1,28 @@
// +build go1.6
package s3
import (
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/request"
)
func platformRequestHandlers(r *request.Request) {
if r.Operation.HTTPMethod == "PUT" {
// 100-Continue should only be used on put requests.
r.Handlers.Sign.PushBack(add100Continue)
}
}
func add100Continue(r *request.Request) {
if aws.BoolValue(r.Config.S3Disable100Continue) {
return
}
if r.HTTPRequest.ContentLength < 1024*1024*2 {
// Ignore requests smaller than 2MB. This helps prevent delaying
// requests unnecessarily.
return
}
r.HTTPRequest.Header.Set("Expect", "100-Continue")
}

12
vendor/github.com/aws/aws-sdk-go/service/s3/service.go generated vendored
View File

@ -7,8 +7,8 @@ import (
"github.com/aws/aws-sdk-go/aws/client"
"github.com/aws/aws-sdk-go/aws/client/metadata"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/signer/v4"
"github.com/aws/aws-sdk-go/private/protocol/restxml"
"github.com/aws/aws-sdk-go/private/signer/v4"
)
// S3 is a client for Amazon S3.
@ -58,11 +58,11 @@ func newClient(cfg aws.Config, handlers request.Handlers, endpoint, signingRegio
}
// Handlers
svc.Handlers.Sign.PushBack(v4.Sign)
svc.Handlers.Build.PushBack(restxml.Build)
svc.Handlers.Unmarshal.PushBack(restxml.Unmarshal)
svc.Handlers.UnmarshalMeta.PushBack(restxml.UnmarshalMeta)
svc.Handlers.UnmarshalError.PushBack(restxml.UnmarshalError)
svc.Handlers.Sign.PushBackNamed(v4.SignRequestHandler)
svc.Handlers.Build.PushBackNamed(restxml.BuildHandler)
svc.Handlers.Unmarshal.PushBackNamed(restxml.UnmarshalHandler)
svc.Handlers.UnmarshalMeta.PushBackNamed(restxml.UnmarshalMetaHandler)
svc.Handlers.UnmarshalError.PushBackNamed(restxml.UnmarshalErrorHandler)
// Run custom client initialization if present
if initClient != nil {

2
vendor/github.com/aws/aws-sdk-go/service/s3/unmarshal_error.go generated vendored
View File

@ -4,6 +4,7 @@ import (
"encoding/xml"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
@ -20,6 +21,7 @@ type xmlErrorResponse struct {
func unmarshalError(r *request.Request) {
defer r.HTTPResponse.Body.Close()
defer io.Copy(ioutil.Discard, r.HTTPResponse.Body)
if r.HTTPResponse.StatusCode == http.StatusMovedPermanently {
r.Error = awserr.NewRequestFailure(

6
vendor/github.com/aws/aws-sdk-go/service/s3/waiters.go generated vendored
View File

@ -18,6 +18,12 @@ func (c *S3) WaitUntilBucketExists(input *HeadBucketInput) error {
Argument: "",
Expected: 200,
},
{
State: "success",
Matcher: "status",
Argument: "",
Expected: 301,
},
{
State: "success",
Matcher: "status",

334
vendor/github.com/codegangsta/cli/CHANGELOG.md generated vendored Normal file
View File

@ -0,0 +1,334 @@
# Change Log
**ATTN**: This project uses [semantic versioning](http://semver.org/).
## [Unreleased]
### Added
- Flag type code generation via `go generate`
### Changed
- Raise minimum tested/supported Go version to 1.2+
## [1.18.0] - 2016-06-27
### Added
- `./runtests` test runner with coverage tracking by default
- testing on OS X
- testing on Windows
- `UintFlag`, `Uint64Flag`, and `Int64Flag` types and supporting code
### Changed
- Use spaces for alignment in help/usage output instead of tabs, making the
output alignment consistent regardless of tab width
### Fixed
- Printing of command aliases in help text
- Printing of visible flags for both struct and struct pointer flags
- Display the `help` subcommand when using `CommandCategories`
- No longer swallows `panic`s that occur within the `Action`s themselves when
detecting the signature of the `Action` field
## [1.17.0] - 2016-05-09
### Added
- Pluggable flag-level help text rendering via `cli.DefaultFlagStringFunc`
- `context.GlobalBoolT` was added as an analogue to `context.GlobalBool`
- Support for hiding commands by setting `Hidden: true` -- this will hide the
commands in help output
### Changed
- `Float64Flag`, `IntFlag`, and `DurationFlag` default values are no longer
quoted in help text output.
- All flag types now include `(default: {value})` strings following usage when a
default value can be (reasonably) detected.
- `IntSliceFlag` and `StringSliceFlag` usage strings are now more consistent
with non-slice flag types
- Apps now exit with a code of 3 if an unknown subcommand is specified
(previously they printed "No help topic for...", but still exited 0. This
makes it easier to script around apps built using `cli` since they can trust
that a 0 exit code indicated a successful execution.
- cleanups based on [Go Report Card
feedback](https://goreportcard.com/report/github.com/urfave/cli)
## [1.16.0] - 2016-05-02
### Added
- `Hidden` field on all flag struct types to omit from generated help text
### Changed
- `BashCompletionFlag` (`--enable-bash-completion`) is now omitted from
generated help text via the `Hidden` field
### Fixed
- handling of error values in `HandleAction` and `HandleExitCoder`
## [1.15.0] - 2016-04-30
### Added
- This file!
- Support for placeholders in flag usage strings
- `App.Metadata` map for arbitrary data/state management
- `Set` and `GlobalSet` methods on `*cli.Context` for altering values after
parsing.
- Support for nested lookup of dot-delimited keys in structures loaded from
YAML.
### Changed
- The `App.Action` and `Command.Action` now prefer a return signature of
`func(*cli.Context) error`, as defined by `cli.ActionFunc`. If a non-nil
`error` is returned, there may be two outcomes:
- If the error fulfills `cli.ExitCoder`, then `os.Exit` will be called
automatically
- Else the error is bubbled up and returned from `App.Run`
- Specifying an `Action` with the legacy return signature of
`func(*cli.Context)` will produce a deprecation message to stderr
- Specifying an `Action` that is not a `func` type will produce a non-zero exit
from `App.Run`
- Specifying an `Action` func that has an invalid (input) signature will
produce a non-zero exit from `App.Run`
### Deprecated
- <a name="deprecated-cli-app-runandexitonerror"></a>
`cli.App.RunAndExitOnError`, which should now be done by returning an error
that fulfills `cli.ExitCoder` to `cli.App.Run`.
- <a name="deprecated-cli-app-action-signature"></a> the legacy signature for
`cli.App.Action` of `func(*cli.Context)`, which should now have a return
signature of `func(*cli.Context) error`, as defined by `cli.ActionFunc`.
### Fixed
- Added missing `*cli.Context.GlobalFloat64` method
## [1.14.0] - 2016-04-03 (backfilled 2016-04-25)
### Added
- Codebeat badge
- Support for categorization via `CategorizedHelp` and `Categories` on app.
### Changed
- Use `filepath.Base` instead of `path.Base` in `Name` and `HelpName`.
### Fixed
- Ensure version is not shown in help text when `HideVersion` set.
## [1.13.0] - 2016-03-06 (backfilled 2016-04-25)
### Added
- YAML file input support.
- `NArg` method on context.
## [1.12.0] - 2016-02-17 (backfilled 2016-04-25)
### Added
- Custom usage error handling.
- Custom text support in `USAGE` section of help output.
- Improved help messages for empty strings.
- AppVeyor CI configuration.
### Changed
- Removed `panic` from default help printer func.
- De-duping and optimizations.
### Fixed
- Correctly handle `Before`/`After` at command level when no subcommands.
- Case of literal `-` argument causing flag reordering.
- Environment variable hints on Windows.
- Docs updates.
## [1.11.1] - 2015-12-21 (backfilled 2016-04-25)
### Changed
- Use `path.Base` in `Name` and `HelpName`
- Export `GetName` on flag types.
### Fixed
- Flag parsing when skipping is enabled.
- Test output cleanup.
- Move completion check to account for empty input case.
## [1.11.0] - 2015-11-15 (backfilled 2016-04-25)
### Added
- Destination scan support for flags.
- Testing against `tip` in Travis CI config.
### Changed
- Go version in Travis CI config.
### Fixed
- Removed redundant tests.
- Use correct example naming in tests.
## [1.10.2] - 2015-10-29 (backfilled 2016-04-25)
### Fixed
- Remove unused var in bash completion.
## [1.10.1] - 2015-10-21 (backfilled 2016-04-25)
### Added
- Coverage and reference logos in README.
### Fixed
- Use specified values in help and version parsing.
- Only display app version and help message once.
## [1.10.0] - 2015-10-06 (backfilled 2016-04-25)
### Added
- More tests for existing functionality.
- `ArgsUsage` at app and command level for help text flexibility.
### Fixed
- Honor `HideHelp` and `HideVersion` in `App.Run`.
- Remove juvenile word from README.
## [1.9.0] - 2015-09-08 (backfilled 2016-04-25)
### Added
- `FullName` on command with accompanying help output update.
- Set default `$PROG` in bash completion.
### Changed
- Docs formatting.
### Fixed
- Removed self-referential imports in tests.
## [1.8.0] - 2015-06-30 (backfilled 2016-04-25)
### Added
- Support for `Copyright` at app level.
- `Parent` func at context level to walk up context lineage.
### Fixed
- Global flag processing at top level.
## [1.7.1] - 2015-06-11 (backfilled 2016-04-25)
### Added
- Aggregate errors from `Before`/`After` funcs.
- Doc comments on flag structs.
- Include non-global flags when checking version and help.
- Travis CI config updates.
### Fixed
- Ensure slice type flags have non-nil values.
- Collect global flags from the full command hierarchy.
- Docs prose.
## [1.7.0] - 2015-05-03 (backfilled 2016-04-25)
### Changed
- `HelpPrinter` signature includes output writer.
### Fixed
- Specify go 1.1+ in docs.
- Set `Writer` when running command as app.
## [1.6.0] - 2015-03-23 (backfilled 2016-04-25)
### Added
- Multiple author support.
- `NumFlags` at context level.
- `Aliases` at command level.
### Deprecated
- `ShortName` at command level.
### Fixed
- Subcommand help output.
- Backward compatible support for deprecated `Author` and `Email` fields.
- Docs regarding `Names`/`Aliases`.
## [1.5.0] - 2015-02-20 (backfilled 2016-04-25)
### Added
- `After` hook func support at app and command level.
### Fixed
- Use parsed context when running command as subcommand.
- Docs prose.
## [1.4.1] - 2015-01-09 (backfilled 2016-04-25)
### Added
- Support for hiding `-h / --help` flags, but not `help` subcommand.
- Stop flag parsing after `--`.
### Fixed
- Help text for generic flags to specify single value.
- Use double quotes in output for defaults.
- Use `ParseInt` instead of `ParseUint` for int environment var values.
- Use `0` as base when parsing int environment var values.
## [1.4.0] - 2014-12-12 (backfilled 2016-04-25)
### Added
- Support for environment variable lookup "cascade".
- Support for `Stdout` on app for output redirection.
### Fixed
- Print command help instead of app help in `ShowCommandHelp`.
## [1.3.1] - 2014-11-13 (backfilled 2016-04-25)
### Added
- Docs and example code updates.
### Changed
- Default `-v / --version` flag made optional.
## [1.3.0] - 2014-08-10 (backfilled 2016-04-25)
### Added
- `FlagNames` at context level.
- Exposed `VersionPrinter` var for more control over version output.
- Zsh completion hook.
- `AUTHOR` section in default app help template.
- Contribution guidelines.
- `DurationFlag` type.
## [1.2.0] - 2014-08-02
### Added
- Support for environment variable defaults on flags plus tests.
## [1.1.0] - 2014-07-15
### Added
- Bash completion.
- Optional hiding of built-in help command.
- Optional skipping of flag parsing at command level.
- `Author`, `Email`, and `Compiled` metadata on app.
- `Before` hook func support at app and command level.
- `CommandNotFound` func support at app level.
- Command reference available on context.
- `GenericFlag` type.
- `Float64Flag` type.
- `BoolTFlag` type.
- `IsSet` flag helper on context.
- More flag lookup funcs at context level.
- More tests &amp; docs.
### Changed
- Help template updates to account for presence/absence of flags.
- Separated subcommand help template.
- Exposed `HelpPrinter` var for more control over help output.
## [1.0.0] - 2013-11-01
### Added
- `help` flag in default app flag set and each command flag set.
- Custom handling of argument parsing errors.
- Command lookup by name at app level.
- `StringSliceFlag` type and supporting `StringSlice` type.
- `IntSliceFlag` type and supporting `IntSlice` type.
- Slice type flag lookups by name at context level.
- Export of app and command help functions.
- More tests &amp; docs.
## 0.1.0 - 2013-07-22
### Added
- Initial implementation.
[Unreleased]: https://github.com/urfave/cli/compare/v1.18.0...HEAD
[1.18.0]: https://github.com/urfave/cli/compare/v1.17.0...v1.18.0
[1.17.0]: https://github.com/urfave/cli/compare/v1.16.0...v1.17.0
[1.16.0]: https://github.com/urfave/cli/compare/v1.15.0...v1.16.0
[1.15.0]: https://github.com/urfave/cli/compare/v1.14.0...v1.15.0
[1.14.0]: https://github.com/urfave/cli/compare/v1.13.0...v1.14.0
[1.13.0]: https://github.com/urfave/cli/compare/v1.12.0...v1.13.0
[1.12.0]: https://github.com/urfave/cli/compare/v1.11.1...v1.12.0
[1.11.1]: https://github.com/urfave/cli/compare/v1.11.0...v1.11.1
[1.11.0]: https://github.com/urfave/cli/compare/v1.10.2...v1.11.0
[1.10.2]: https://github.com/urfave/cli/compare/v1.10.1...v1.10.2
[1.10.1]: https://github.com/urfave/cli/compare/v1.10.0...v1.10.1
[1.10.0]: https://github.com/urfave/cli/compare/v1.9.0...v1.10.0
[1.9.0]: https://github.com/urfave/cli/compare/v1.8.0...v1.9.0
[1.8.0]: https://github.com/urfave/cli/compare/v1.7.1...v1.8.0
[1.7.1]: https://github.com/urfave/cli/compare/v1.7.0...v1.7.1
[1.7.0]: https://github.com/urfave/cli/compare/v1.6.0...v1.7.0
[1.6.0]: https://github.com/urfave/cli/compare/v1.5.0...v1.6.0
[1.5.0]: https://github.com/urfave/cli/compare/v1.4.1...v1.5.0
[1.4.1]: https://github.com/urfave/cli/compare/v1.4.0...v1.4.1
[1.4.0]: https://github.com/urfave/cli/compare/v1.3.1...v1.4.0
[1.3.1]: https://github.com/urfave/cli/compare/v1.3.0...v1.3.1
[1.3.0]: https://github.com/urfave/cli/compare/v1.2.0...v1.3.0
[1.2.0]: https://github.com/urfave/cli/compare/v1.1.0...v1.2.0
[1.1.0]: https://github.com/urfave/cli/compare/v1.0.0...v1.1.0
[1.0.0]: https://github.com/urfave/cli/compare/v0.1.0...v1.0.0

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MIT License
Copyright (c) 2016 Jeremy Saenz & Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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package cli
import (
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"time"
)
var (
changeLogURL = "https://github.com/urfave/cli/blob/master/CHANGELOG.md"
appActionDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-action-signature", changeLogURL)
runAndExitOnErrorDeprecationURL = fmt.Sprintf("%s#deprecated-cli-app-runandexitonerror", changeLogURL)
contactSysadmin = "This is an error in the application. Please contact the distributor of this application if this is not you."
errNonFuncAction = NewExitError("ERROR invalid Action type. "+
fmt.Sprintf("Must be a func of type `cli.ActionFunc`. %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
errInvalidActionSignature = NewExitError("ERROR invalid Action signature. "+
fmt.Sprintf("Must be `cli.ActionFunc`. %s", contactSysadmin)+
fmt.Sprintf("See %s", appActionDeprecationURL), 2)
)
// App is the main structure of a cli application. It is recommended that
// an app be created with the cli.NewApp() function
type App struct {
// The name of the program. Defaults to path.Base(os.Args[0])
Name string
// Full name of command for help, defaults to Name
HelpName string
// Description of the program.
Usage string
// Text to override the USAGE section of help
UsageText string
// Description of the program argument format.
ArgsUsage string
// Version of the program
Version string
// List of commands to execute
Commands []Command
// List of flags to parse
Flags []Flag
// Boolean to enable bash completion commands
EnableBashCompletion bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide built-in version flag and the VERSION section of help
HideVersion bool
// Populate on app startup, only gettable through method Categories()
categories CommandCategories
// An action to execute when the bash-completion flag is set
BashComplete BashCompleteFunc
// An action to execute before any subcommands are run, but after the context is ready
// If a non-nil error is returned, no subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The action to execute when no subcommands are specified
Action interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if the proper command cannot be found
CommandNotFound CommandNotFoundFunc
// Execute this function if an usage error occurs
OnUsageError OnUsageErrorFunc
// Compilation date
Compiled time.Time
// List of all authors who contributed
Authors []Author
// Copyright of the binary if any
Copyright string
// Name of Author (Note: Use App.Authors, this is deprecated)
Author string
// Email of Author (Note: Use App.Authors, this is deprecated)
Email string
// Writer writer to write output to
Writer io.Writer
// ErrWriter writes error output
ErrWriter io.Writer
// Other custom info
Metadata map[string]interface{}
didSetup bool
}
// Tries to find out when this binary was compiled.
// Returns the current time if it fails to find it.
func compileTime() time.Time {
info, err := os.Stat(os.Args[0])
if err != nil {
return time.Now()
}
return info.ModTime()
}
// NewApp creates a new cli Application with some reasonable defaults for Name,
// Usage, Version and Action.
func NewApp() *App {
return &App{
Name: filepath.Base(os.Args[0]),
HelpName: filepath.Base(os.Args[0]),
Usage: "A new cli application",
UsageText: "",
Version: "0.0.0",
BashComplete: DefaultAppComplete,
Action: helpCommand.Action,
Compiled: compileTime(),
Writer: os.Stdout,
}
}
// Setup runs initialization code to ensure all data structures are ready for
// `Run` or inspection prior to `Run`. It is internally called by `Run`, but
// will return early if setup has already happened.
func (a *App) Setup() {
if a.didSetup {
return
}
a.didSetup = true
if a.Author != "" || a.Email != "" {
a.Authors = append(a.Authors, Author{Name: a.Author, Email: a.Email})
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
if a.EnableBashCompletion {
a.appendFlag(BashCompletionFlag)
}
if !a.HideVersion {
a.appendFlag(VersionFlag)
}
a.categories = CommandCategories{}
for _, command := range a.Commands {
a.categories = a.categories.AddCommand(command.Category, command)
}
sort.Sort(a.categories)
if a.Metadata == nil {
a.Metadata = make(map[string]interface{})
}
}
// Run is the entry point to the cli app. Parses the arguments slice and routes
// to the proper flag/args combination
func (a *App) Run(arguments []string) (err error) {
a.Setup()
// parse flags
set := flagSet(a.Name, a.Flags)
set.SetOutput(ioutil.Discard)
err = set.Parse(arguments[1:])
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, nil)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
ShowAppHelp(context)
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err := a.OnUsageError(context, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
ShowAppHelp(context)
return err
}
if !a.HideHelp && checkHelp(context) {
ShowAppHelp(context)
return nil
}
if !a.HideVersion && checkVersion(context) {
ShowVersion(context)
return nil
}
if a.After != nil {
defer func() {
if afterErr := a.After(context); afterErr != nil {
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
fmt.Fprintf(a.Writer, "%v\n\n", beforeErr)
ShowAppHelp(context)
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// DEPRECATED: Another entry point to the cli app, takes care of passing arguments and error handling
func (a *App) RunAndExitOnError() {
fmt.Fprintf(a.errWriter(),
"DEPRECATED cli.App.RunAndExitOnError. %s See %s\n",
contactSysadmin, runAndExitOnErrorDeprecationURL)
if err := a.Run(os.Args); err != nil {
fmt.Fprintln(a.errWriter(), err)
OsExiter(1)
}
}
// RunAsSubcommand invokes the subcommand given the context, parses ctx.Args() to
// generate command-specific flags
func (a *App) RunAsSubcommand(ctx *Context) (err error) {
// append help to commands
if len(a.Commands) > 0 {
if a.Command(helpCommand.Name) == nil && !a.HideHelp {
a.Commands = append(a.Commands, helpCommand)
if (HelpFlag != BoolFlag{}) {
a.appendFlag(HelpFlag)
}
}
}
newCmds := []Command{}
for _, c := range a.Commands {
if c.HelpName == "" {
c.HelpName = fmt.Sprintf("%s %s", a.HelpName, c.Name)
}
newCmds = append(newCmds, c)
}
a.Commands = newCmds
// append flags
if a.EnableBashCompletion {
a.appendFlag(BashCompletionFlag)
}
// parse flags
set := flagSet(a.Name, a.Flags)
set.SetOutput(ioutil.Discard)
err = set.Parse(ctx.Args().Tail())
nerr := normalizeFlags(a.Flags, set)
context := NewContext(a, set, ctx)
if nerr != nil {
fmt.Fprintln(a.Writer, nerr)
fmt.Fprintln(a.Writer)
if len(a.Commands) > 0 {
ShowSubcommandHelp(context)
} else {
ShowCommandHelp(ctx, context.Args().First())
}
return nerr
}
if checkCompletions(context) {
return nil
}
if err != nil {
if a.OnUsageError != nil {
err = a.OnUsageError(context, err, true)
HandleExitCoder(err)
return err
}
fmt.Fprintf(a.Writer, "%s\n\n", "Incorrect Usage.")
ShowSubcommandHelp(context)
return err
}
if len(a.Commands) > 0 {
if checkSubcommandHelp(context) {
return nil
}
} else {
if checkCommandHelp(ctx, context.Args().First()) {
return nil
}
}
if a.After != nil {
defer func() {
afterErr := a.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if a.Before != nil {
beforeErr := a.Before(context)
if beforeErr != nil {
HandleExitCoder(beforeErr)
err = beforeErr
return err
}
}
args := context.Args()
if args.Present() {
name := args.First()
c := a.Command(name)
if c != nil {
return c.Run(context)
}
}
// Run default Action
err = HandleAction(a.Action, context)
HandleExitCoder(err)
return err
}
// Command returns the named command on App. Returns nil if the command does not exist
func (a *App) Command(name string) *Command {
for _, c := range a.Commands {
if c.HasName(name) {
return &c
}
}
return nil
}
// Categories returns a slice containing all the categories with the commands they contain
func (a *App) Categories() CommandCategories {
return a.categories
}
// VisibleCategories returns a slice of categories and commands that are
// Hidden=false
func (a *App) VisibleCategories() []*CommandCategory {
ret := []*CommandCategory{}
for _, category := range a.categories {
if visible := func() *CommandCategory {
for _, command := range category.Commands {
if !command.Hidden {
return category
}
}
return nil
}(); visible != nil {
ret = append(ret, visible)
}
}
return ret
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (a *App) VisibleCommands() []Command {
ret := []Command{}
for _, command := range a.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (a *App) VisibleFlags() []Flag {
return visibleFlags(a.Flags)
}
func (a *App) hasFlag(flag Flag) bool {
for _, f := range a.Flags {
if flag == f {
return true
}
}
return false
}
func (a *App) errWriter() io.Writer {
// When the app ErrWriter is nil use the package level one.
if a.ErrWriter == nil {
return ErrWriter
}
return a.ErrWriter
}
func (a *App) appendFlag(flag Flag) {
if !a.hasFlag(flag) {
a.Flags = append(a.Flags, flag)
}
}
// Author represents someone who has contributed to a cli project.
type Author struct {
Name string // The Authors name
Email string // The Authors email
}
// String makes Author comply to the Stringer interface, to allow an easy print in the templating process
func (a Author) String() string {
e := ""
if a.Email != "" {
e = "<" + a.Email + "> "
}
return fmt.Sprintf("%v %v", a.Name, e)
}
// HandleAction uses ✧✧✧reflection✧✧✧ to figure out if the given Action is an
// ActionFunc, a func with the legacy signature for Action, or some other
// invalid thing. If it's an ActionFunc or a func with the legacy signature for
// Action, the func is run!
func HandleAction(action interface{}, context *Context) (err error) {
defer func() {
if r := recover(); r != nil {
// Try to detect a known reflection error from *this scope*, rather than
// swallowing all panics that may happen when calling an Action func.
s := fmt.Sprintf("%v", r)
if strings.HasPrefix(s, "reflect: ") && strings.Contains(s, "too many input arguments") {
err = NewExitError(fmt.Sprintf("ERROR unknown Action error: %v. See %s", r, appActionDeprecationURL), 2)
} else {
panic(r)
}
}
}()
if reflect.TypeOf(action).Kind() != reflect.Func {
return errNonFuncAction
}
vals := reflect.ValueOf(action).Call([]reflect.Value{reflect.ValueOf(context)})
if len(vals) == 0 {
fmt.Fprintf(ErrWriter,
"DEPRECATED Action signature. Must be `cli.ActionFunc`. %s See %s\n",
contactSysadmin, appActionDeprecationURL)
return nil
}
if len(vals) > 1 {
return errInvalidActionSignature
}
if retErr, ok := vals[0].Interface().(error); vals[0].IsValid() && ok {
return retErr
}
return err
}

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version: "{build}"
os: Windows Server 2012 R2
clone_folder: c:\gopath\src\github.com\urfave\cli
environment:
GOPATH: C:\gopath
GOVERSION: 1.6
PYTHON: C:\Python27-x64
PYTHON_VERSION: 2.7.x
PYTHON_ARCH: 64
GFMXR_DEBUG: 1
install:
- set PATH=%GOPATH%\bin;C:\go\bin;%PATH%
- go version
- go env
- go get github.com/urfave/gfmrun/...
- go get -v -t ./...
build_script:
- python runtests vet
- python runtests test
- python runtests gfmrun

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vendor/github.com/codegangsta/cli/category.go generated vendored Normal file
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package cli
// CommandCategories is a slice of *CommandCategory.
type CommandCategories []*CommandCategory
// CommandCategory is a category containing commands.
type CommandCategory struct {
Name string
Commands Commands
}
func (c CommandCategories) Less(i, j int) bool {
return c[i].Name < c[j].Name
}
func (c CommandCategories) Len() int {
return len(c)
}
func (c CommandCategories) Swap(i, j int) {
c[i], c[j] = c[j], c[i]
}
// AddCommand adds a command to a category.
func (c CommandCategories) AddCommand(category string, command Command) CommandCategories {
for _, commandCategory := range c {
if commandCategory.Name == category {
commandCategory.Commands = append(commandCategory.Commands, command)
return c
}
}
return append(c, &CommandCategory{Name: category, Commands: []Command{command}})
}
// VisibleCommands returns a slice of the Commands with Hidden=false
func (c *CommandCategory) VisibleCommands() []Command {
ret := []Command{}
for _, command := range c.Commands {
if !command.Hidden {
ret = append(ret, command)
}
}
return ret
}

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// Package cli provides a minimal framework for creating and organizing command line
// Go applications. cli is designed to be easy to understand and write, the most simple
// cli application can be written as follows:
// func main() {
// cli.NewApp().Run(os.Args)
// }
//
// Of course this application does not do much, so let's make this an actual application:
// func main() {
// app := cli.NewApp()
// app.Name = "greet"
// app.Usage = "say a greeting"
// app.Action = func(c *cli.Context) error {
// println("Greetings")
// }
//
// app.Run(os.Args)
// }
package cli
//go:generate python ./generate-flag-types cli -i flag-types.json -o flag_generated.go

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vendor/github.com/codegangsta/cli/command.go generated vendored Normal file
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package cli
import (
"fmt"
"io/ioutil"
"sort"
"strings"
)
// Command is a subcommand for a cli.App.
type Command struct {
// The name of the command
Name string
// short name of the command. Typically one character (deprecated, use `Aliases`)
ShortName string
// A list of aliases for the command
Aliases []string
// A short description of the usage of this command
Usage string
// Custom text to show on USAGE section of help
UsageText string
// A longer explanation of how the command works
Description string
// A short description of the arguments of this command
ArgsUsage string
// The category the command is part of
Category string
// The function to call when checking for bash command completions
BashComplete BashCompleteFunc
// An action to execute before any sub-subcommands are run, but after the context is ready
// If a non-nil error is returned, no sub-subcommands are run
Before BeforeFunc
// An action to execute after any subcommands are run, but after the subcommand has finished
// It is run even if Action() panics
After AfterFunc
// The function to call when this command is invoked
Action interface{}
// TODO: replace `Action: interface{}` with `Action: ActionFunc` once some kind
// of deprecation period has passed, maybe?
// Execute this function if a usage error occurs.
OnUsageError OnUsageErrorFunc
// List of child commands
Subcommands Commands
// List of flags to parse
Flags []Flag
// Treat all flags as normal arguments if true
SkipFlagParsing bool
// Boolean to hide built-in help command
HideHelp bool
// Boolean to hide this command from help or completion
Hidden bool
// Full name of command for help, defaults to full command name, including parent commands.
HelpName string
commandNamePath []string
}
// FullName returns the full name of the command.
// For subcommands this ensures that parent commands are part of the command path
func (c Command) FullName() string {
if c.commandNamePath == nil {
return c.Name
}
return strings.Join(c.commandNamePath, " ")
}
// Commands is a slice of Command
type Commands []Command
// Run invokes the command given the context, parses ctx.Args() to generate command-specific flags
func (c Command) Run(ctx *Context) (err error) {
if len(c.Subcommands) > 0 {
return c.startApp(ctx)
}
if !c.HideHelp && (HelpFlag != BoolFlag{}) {
// append help to flags
c.Flags = append(
c.Flags,
HelpFlag,
)
}
if ctx.App.EnableBashCompletion {
c.Flags = append(c.Flags, BashCompletionFlag)
}
set := flagSet(c.Name, c.Flags)
set.SetOutput(ioutil.Discard)
if !c.SkipFlagParsing {
firstFlagIndex := -1
terminatorIndex := -1
for index, arg := range ctx.Args() {
if arg == "--" {
terminatorIndex = index
break
} else if arg == "-" {
// Do nothing. A dash alone is not really a flag.
continue
} else if strings.HasPrefix(arg, "-") && firstFlagIndex == -1 {
firstFlagIndex = index
}
}
if firstFlagIndex > -1 {
args := ctx.Args()
regularArgs := make([]string, len(args[1:firstFlagIndex]))
copy(regularArgs, args[1:firstFlagIndex])
var flagArgs []string
if terminatorIndex > -1 {
flagArgs = args[firstFlagIndex:terminatorIndex]
regularArgs = append(regularArgs, args[terminatorIndex:]...)
} else {
flagArgs = args[firstFlagIndex:]
}
err = set.Parse(append(flagArgs, regularArgs...))
} else {
err = set.Parse(ctx.Args().Tail())
}
} else {
if c.SkipFlagParsing {
err = set.Parse(append([]string{"--"}, ctx.Args().Tail()...))
}
}
if err != nil {
if c.OnUsageError != nil {
err := c.OnUsageError(ctx, err, false)
HandleExitCoder(err)
return err
}
fmt.Fprintln(ctx.App.Writer, "Incorrect Usage.")
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return err
}
nerr := normalizeFlags(c.Flags, set)
if nerr != nil {
fmt.Fprintln(ctx.App.Writer, nerr)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
return nerr
}
context := NewContext(ctx.App, set, ctx)
if checkCommandCompletions(context, c.Name) {
return nil
}
if checkCommandHelp(context, c.Name) {
return nil
}
if c.After != nil {
defer func() {
afterErr := c.After(context)
if afterErr != nil {
HandleExitCoder(err)
if err != nil {
err = NewMultiError(err, afterErr)
} else {
err = afterErr
}
}
}()
}
if c.Before != nil {
err = c.Before(context)
if err != nil {
fmt.Fprintln(ctx.App.Writer, err)
fmt.Fprintln(ctx.App.Writer)
ShowCommandHelp(ctx, c.Name)
HandleExitCoder(err)
return err
}
}
context.Command = c
err = HandleAction(c.Action, context)
if err != nil {
HandleExitCoder(err)
}
return err
}
// Names returns the names including short names and aliases.
func (c Command) Names() []string {
names := []string{c.Name}
if c.ShortName != "" {
names = append(names, c.ShortName)
}
return append(names, c.Aliases...)
}
// HasName returns true if Command.Name or Command.ShortName matches given name
func (c Command) HasName(name string) bool {
for _, n := range c.Names() {
if n == name {
return true
}
}
return false
}
func (c Command) startApp(ctx *Context) error {
app := NewApp()
app.Metadata = ctx.App.Metadata
// set the name and usage
app.Name = fmt.Sprintf("%s %s", ctx.App.Name, c.Name)
if c.HelpName == "" {
app.HelpName = c.HelpName
} else {
app.HelpName = app.Name
}
if c.Description != "" {
app.Usage = c.Description
} else {
app.Usage = c.Usage
}
// set CommandNotFound
app.CommandNotFound = ctx.App.CommandNotFound
// set the flags and commands
app.Commands = c.Subcommands
app.Flags = c.Flags
app.HideHelp = c.HideHelp
app.Version = ctx.App.Version
app.HideVersion = ctx.App.HideVersion
app.Compiled = ctx.App.Compiled
app.Author = ctx.App.Author
app.Email = ctx.App.Email
app.Writer = ctx.App.Writer
app.categories = CommandCategories{}
for _, command := range c.Subcommands {
app.categories = app.categories.AddCommand(command.Category, command)
}
sort.Sort(app.categories)
// bash completion
app.EnableBashCompletion = ctx.App.EnableBashCompletion
if c.BashComplete != nil {
app.BashComplete = c.BashComplete
}
// set the actions
app.Before = c.Before
app.After = c.After
if c.Action != nil {
app.Action = c.Action
} else {
app.Action = helpSubcommand.Action
}
for index, cc := range app.Commands {
app.Commands[index].commandNamePath = []string{c.Name, cc.Name}
}
return app.RunAsSubcommand(ctx)
}
// VisibleFlags returns a slice of the Flags with Hidden=false
func (c Command) VisibleFlags() []Flag {
return visibleFlags(c.Flags)
}

213
vendor/github.com/codegangsta/cli/context.go generated vendored Normal file
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package cli
import (
"errors"
"flag"
"strings"
)
// Context is a type that is passed through to
// each Handler action in a cli application. Context
// can be used to retrieve context-specific Args and
// parsed command-line options.
type Context struct {
App *App
Command Command
flagSet *flag.FlagSet
setFlags map[string]bool
globalSetFlags map[string]bool
parentContext *Context
}
// NewContext creates a new context. For use in when invoking an App or Command action.
func NewContext(app *App, set *flag.FlagSet, parentCtx *Context) *Context {
return &Context{App: app, flagSet: set, parentContext: parentCtx}
}
// NumFlags returns the number of flags set
func (c *Context) NumFlags() int {
return c.flagSet.NFlag()
}
// Set sets a context flag to a value.
func (c *Context) Set(name, value string) error {
return c.flagSet.Set(name, value)
}
// GlobalSet sets a context flag to a value on the global flagset
func (c *Context) GlobalSet(name, value string) error {
return globalContext(c).flagSet.Set(name, value)
}
// IsSet determines if the flag was actually set
func (c *Context) IsSet(name string) bool {
if c.setFlags == nil {
c.setFlags = make(map[string]bool)
c.flagSet.Visit(func(f *flag.Flag) {
c.setFlags[f.Name] = true
})
}
return c.setFlags[name] == true
}
// GlobalIsSet determines if the global flag was actually set
func (c *Context) GlobalIsSet(name string) bool {
if c.globalSetFlags == nil {
c.globalSetFlags = make(map[string]bool)
ctx := c
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil && c.globalSetFlags[name] == false; ctx = ctx.parentContext {
ctx.flagSet.Visit(func(f *flag.Flag) {
c.globalSetFlags[f.Name] = true
})
}
}
return c.globalSetFlags[name]
}
// FlagNames returns a slice of flag names used in this context.
func (c *Context) FlagNames() (names []string) {
for _, flag := range c.Command.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" {
continue
}
names = append(names, name)
}
return
}
// GlobalFlagNames returns a slice of global flag names used by the app.
func (c *Context) GlobalFlagNames() (names []string) {
for _, flag := range c.App.Flags {
name := strings.Split(flag.GetName(), ",")[0]
if name == "help" || name == "version" {
continue
}
names = append(names, name)
}
return
}
// Parent returns the parent context, if any
func (c *Context) Parent() *Context {
return c.parentContext
}
// Args contains apps console arguments
type Args []string
// Args returns the command line arguments associated with the context.
func (c *Context) Args() Args {
args := Args(c.flagSet.Args())
return args
}
// NArg returns the number of the command line arguments.
func (c *Context) NArg() int {
return len(c.Args())
}
// Get returns the nth argument, or else a blank string
func (a Args) Get(n int) string {
if len(a) > n {
return a[n]
}
return ""
}
// First returns the first argument, or else a blank string
func (a Args) First() string {
return a.Get(0)
}
// Tail returns the rest of the arguments (not the first one)
// or else an empty string slice
func (a Args) Tail() []string {
if len(a) >= 2 {
return []string(a)[1:]
}
return []string{}
}
// Present checks if there are any arguments present
func (a Args) Present() bool {
return len(a) != 0
}
// Swap swaps arguments at the given indexes
func (a Args) Swap(from, to int) error {
if from >= len(a) || to >= len(a) {
return errors.New("index out of range")
}
a[from], a[to] = a[to], a[from]
return nil
}
func globalContext(ctx *Context) *Context {
if ctx == nil {
return nil
}
for {
if ctx.parentContext == nil {
return ctx
}
ctx = ctx.parentContext
}
}
func lookupGlobalFlagSet(name string, ctx *Context) *flag.FlagSet {
if ctx.parentContext != nil {
ctx = ctx.parentContext
}
for ; ctx != nil; ctx = ctx.parentContext {
if f := ctx.flagSet.Lookup(name); f != nil {
return ctx.flagSet
}
}
return nil
}
func copyFlag(name string, ff *flag.Flag, set *flag.FlagSet) {
switch ff.Value.(type) {
case *StringSlice:
default:
set.Set(name, ff.Value.String())
}
}
func normalizeFlags(flags []Flag, set *flag.FlagSet) error {
visited := make(map[string]bool)
set.Visit(func(f *flag.Flag) {
visited[f.Name] = true
})
for _, f := range flags {
parts := strings.Split(f.GetName(), ",")
if len(parts) == 1 {
continue
}
var ff *flag.Flag
for _, name := range parts {
name = strings.Trim(name, " ")
if visited[name] {
if ff != nil {
return errors.New("Cannot use two forms of the same flag: " + name + " " + ff.Name)
}
ff = set.Lookup(name)
}
}
if ff == nil {
continue
}
for _, name := range parts {
name = strings.Trim(name, " ")
if !visited[name] {
copyFlag(name, ff, set)
}
}
}
return nil
}

92
vendor/github.com/codegangsta/cli/errors.go generated vendored Normal file
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package cli
import (
"fmt"
"io"
"os"
"strings"
)
// OsExiter is the function used when the app exits. If not set defaults to os.Exit.
var OsExiter = os.Exit
// ErrWriter is used to write errors to the user. This can be anything
// implementing the io.Writer interface and defaults to os.Stderr.
var ErrWriter io.Writer = os.Stderr
// MultiError is an error that wraps multiple errors.
type MultiError struct {
Errors []error
}
// NewMultiError creates a new MultiError. Pass in one or more errors.
func NewMultiError(err ...error) MultiError {
return MultiError{Errors: err}
}
// Error implents the error interface.
func (m MultiError) Error() string {
errs := make([]string, len(m.Errors))
for i, err := range m.Errors {
errs[i] = err.Error()
}
return strings.Join(errs, "\n")
}
// ExitCoder is the interface checked by `App` and `Command` for a custom exit
// code
type ExitCoder interface {
error
ExitCode() int
}
// ExitError fulfills both the builtin `error` interface and `ExitCoder`
type ExitError struct {
exitCode int
message string
}
// NewExitError makes a new *ExitError
func NewExitError(message string, exitCode int) *ExitError {
return &ExitError{
exitCode: exitCode,
message: message,
}
}
// Error returns the string message, fulfilling the interface required by
// `error`
func (ee *ExitError) Error() string {
return ee.message
}
// ExitCode returns the exit code, fulfilling the interface required by
// `ExitCoder`
func (ee *ExitError) ExitCode() int {
return ee.exitCode
}
// HandleExitCoder checks if the error fulfills the ExitCoder interface, and if
// so prints the error to stderr (if it is non-empty) and calls OsExiter with the
// given exit code. If the given error is a MultiError, then this func is
// called on all members of the Errors slice.
func HandleExitCoder(err error) {
if err == nil {
return
}
if exitErr, ok := err.(ExitCoder); ok {
if err.Error() != "" {
fmt.Fprintln(ErrWriter, err)
}
OsExiter(exitErr.ExitCode())
return
}
if multiErr, ok := err.(MultiError); ok {
for _, merr := range multiErr.Errors {
HandleExitCoder(merr)
}
}
}

93
vendor/github.com/codegangsta/cli/flag-types.json generated vendored Normal file
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@ -0,0 +1,93 @@
[
{
"name": "Bool",
"type": "bool",
"value": false,
"context_default": "false",
"parser": "strconv.ParseBool(f.Value.String())"
},
{
"name": "BoolT",
"type": "bool",
"value": false,
"doctail": " that is true by default",
"context_default": "false",
"parser": "strconv.ParseBool(f.Value.String())"
},
{
"name": "Duration",
"type": "time.Duration",
"doctail": " (see https://golang.org/pkg/time/#ParseDuration)",
"context_default": "0",
"parser": "time.ParseDuration(f.Value.String())"
},
{
"name": "Float64",
"type": "float64",
"context_default": "0",
"parser": "strconv.ParseFloat(f.Value.String(), 64)"
},
{
"name": "Generic",
"type": "Generic",
"dest": false,
"context_default": "nil",
"context_type": "interface{}"
},
{
"name": "Int64",
"type": "int64",
"context_default": "0",
"parser": "strconv.ParseInt(f.Value.String(), 0, 64)"
},
{
"name": "Int",
"type": "int",
"context_default": "0",
"parser": "strconv.ParseInt(f.Value.String(), 0, 64)",
"parser_cast": "int(parsed)"
},
{
"name": "IntSlice",
"type": "*IntSlice",
"dest": false,
"context_default": "nil",
"context_type": "[]int",
"parser": "(f.Value.(*IntSlice)).Value(), error(nil)"
},
{
"name": "Int64Slice",
"type": "*Int64Slice",
"dest": false,
"context_default": "nil",
"context_type": "[]int64",
"parser": "(f.Value.(*Int64Slice)).Value(), error(nil)"
},
{
"name": "String",
"type": "string",
"context_default": "\"\"",
"parser": "f.Value.String(), error(nil)"
},
{
"name": "StringSlice",
"type": "*StringSlice",
"dest": false,
"context_default": "nil",
"context_type": "[]string",
"parser": "(f.Value.(*StringSlice)).Value(), error(nil)"
},
{
"name": "Uint64",
"type": "uint64",
"context_default": "0",
"parser": "strconv.ParseUint(f.Value.String(), 0, 64)"
},
{
"name": "Uint",
"type": "uint",
"context_default": "0",
"parser": "strconv.ParseUint(f.Value.String(), 0, 64)",
"parser_cast": "uint(parsed)"
}
]

621
vendor/github.com/codegangsta/cli/flag.go generated vendored Normal file
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@ -0,0 +1,621 @@
package cli
import (
"flag"
"fmt"
"os"
"reflect"
"runtime"
"strconv"
"strings"
"time"
)
const defaultPlaceholder = "value"
// BashCompletionFlag enables bash-completion for all commands and subcommands
var BashCompletionFlag = BoolFlag{
Name: "generate-bash-completion",
Hidden: true,
}
// VersionFlag prints the version for the application
var VersionFlag = BoolFlag{
Name: "version, v",
Usage: "print the version",
}
// HelpFlag prints the help for all commands and subcommands
// Set to the zero value (BoolFlag{}) to disable flag -- keeps subcommand
// unless HideHelp is set to true)
var HelpFlag = BoolFlag{
Name: "help, h",
Usage: "show help",
}
// FlagStringer converts a flag definition to a string. This is used by help
// to display a flag.
var FlagStringer FlagStringFunc = stringifyFlag
// Flag is a common interface related to parsing flags in cli.
// For more advanced flag parsing techniques, it is recommended that
// this interface be implemented.
type Flag interface {
fmt.Stringer
// Apply Flag settings to the given flag set
Apply(*flag.FlagSet)
GetName() string
}
func flagSet(name string, flags []Flag) *flag.FlagSet {
set := flag.NewFlagSet(name, flag.ContinueOnError)
for _, f := range flags {
f.Apply(set)
}
return set
}
func eachName(longName string, fn func(string)) {
parts := strings.Split(longName, ",")
for _, name := range parts {
name = strings.Trim(name, " ")
fn(name)
}
}
// Generic is a generic parseable type identified by a specific flag
type Generic interface {
Set(value string) error
String() string
}
// Apply takes the flagset and calls Set on the generic flag with the value
// provided by the user for parsing by the flag
func (f GenericFlag) Apply(set *flag.FlagSet) {
val := f.Value
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
val.Set(envVal)
break
}
}
}
eachName(f.Name, func(name string) {
set.Var(f.Value, name, f.Usage)
})
}
// StringSlice is an opaque type for []string to satisfy flag.Value
type StringSlice []string
// Set appends the string value to the list of values
func (f *StringSlice) Set(value string) error {
*f = append(*f, value)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *StringSlice) String() string {
return fmt.Sprintf("%s", *f)
}
// Value returns the slice of strings set by this flag
func (f *StringSlice) Value() []string {
return *f
}
// Apply populates the flag given the flag set and environment
func (f StringSliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &StringSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
newVal.Set(s)
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &StringSlice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// IntSlice is an opaque type for []int to satisfy flag.Value
type IntSlice []int
// Set parses the value into an integer and appends it to the list of values
func (f *IntSlice) Set(value string) error {
tmp, err := strconv.Atoi(value)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *IntSlice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *IntSlice) Value() []int {
return *f
}
// Apply populates the flag given the flag set and environment
func (f IntSliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &IntSlice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
err := newVal.Set(s)
if err != nil {
fmt.Fprintf(ErrWriter, err.Error())
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &IntSlice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// Int64Slice is an opaque type for []int to satisfy flag.Value
type Int64Slice []int64
// Set parses the value into an integer and appends it to the list of values
func (f *Int64Slice) Set(value string) error {
tmp, err := strconv.ParseInt(value, 10, 64)
if err != nil {
return err
}
*f = append(*f, tmp)
return nil
}
// String returns a readable representation of this value (for usage defaults)
func (f *Int64Slice) String() string {
return fmt.Sprintf("%#v", *f)
}
// Value returns the slice of ints set by this flag
func (f *Int64Slice) Value() []int64 {
return *f
}
// Apply populates the flag given the flag set and environment
func (f Int64SliceFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
newVal := &Int64Slice{}
for _, s := range strings.Split(envVal, ",") {
s = strings.TrimSpace(s)
err := newVal.Set(s)
if err != nil {
fmt.Fprintf(ErrWriter, err.Error())
}
}
f.Value = newVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Value == nil {
f.Value = &Int64Slice{}
}
set.Var(f.Value, name, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f BoolFlag) Apply(set *flag.FlagSet) {
val := false
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValBool, err := strconv.ParseBool(envVal)
if err == nil {
val = envValBool
}
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f BoolTFlag) Apply(set *flag.FlagSet) {
val := true
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValBool, err := strconv.ParseBool(envVal)
if err == nil {
val = envValBool
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.BoolVar(f.Destination, name, val, f.Usage)
return
}
set.Bool(name, val, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f StringFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
f.Value = envVal
break
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.StringVar(f.Destination, name, f.Value, f.Usage)
return
}
set.String(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f IntFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err == nil {
f.Value = int(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.IntVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Int(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f Int64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseInt(envVal, 0, 64)
if err == nil {
f.Value = envValInt
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Int64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Int64(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f UintFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err == nil {
f.Value = uint(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.UintVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f Uint64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValInt, err := strconv.ParseUint(envVal, 0, 64)
if err == nil {
f.Value = uint64(envValInt)
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Uint64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Uint64(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f DurationFlag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValDuration, err := time.ParseDuration(envVal)
if err == nil {
f.Value = envValDuration
break
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.DurationVar(f.Destination, name, f.Value, f.Usage)
return
}
set.Duration(name, f.Value, f.Usage)
})
}
// Apply populates the flag given the flag set and environment
func (f Float64Flag) Apply(set *flag.FlagSet) {
if f.EnvVar != "" {
for _, envVar := range strings.Split(f.EnvVar, ",") {
envVar = strings.TrimSpace(envVar)
if envVal := os.Getenv(envVar); envVal != "" {
envValFloat, err := strconv.ParseFloat(envVal, 10)
if err == nil {
f.Value = float64(envValFloat)
}
}
}
}
eachName(f.Name, func(name string) {
if f.Destination != nil {
set.Float64Var(f.Destination, name, f.Value, f.Usage)
return
}
set.Float64(name, f.Value, f.Usage)
})
}
func visibleFlags(fl []Flag) []Flag {
visible := []Flag{}
for _, flag := range fl {
if !flagValue(flag).FieldByName("Hidden").Bool() {
visible = append(visible, flag)
}
}
return visible
}
func prefixFor(name string) (prefix string) {
if len(name) == 1 {
prefix = "-"
} else {
prefix = "--"
}
return
}
// Returns the placeholder, if any, and the unquoted usage string.
func unquoteUsage(usage string) (string, string) {
for i := 0; i < len(usage); i++ {
if usage[i] == '`' {
for j := i + 1; j < len(usage); j++ {
if usage[j] == '`' {
name := usage[i+1 : j]
usage = usage[:i] + name + usage[j+1:]
return name, usage
}
}
break
}
}
return "", usage
}
func prefixedNames(fullName, placeholder string) string {
var prefixed string
parts := strings.Split(fullName, ",")
for i, name := range parts {
name = strings.Trim(name, " ")
prefixed += prefixFor(name) + name
if placeholder != "" {
prefixed += " " + placeholder
}
if i < len(parts)-1 {
prefixed += ", "
}
}
return prefixed
}
func withEnvHint(envVar, str string) string {
envText := ""
if envVar != "" {
prefix := "$"
suffix := ""
sep := ", $"
if runtime.GOOS == "windows" {
prefix = "%"
suffix = "%"
sep = "%, %"
}
envText = fmt.Sprintf(" [%s%s%s]", prefix, strings.Join(strings.Split(envVar, ","), sep), suffix)
}
return str + envText
}
func flagValue(f Flag) reflect.Value {
fv := reflect.ValueOf(f)
for fv.Kind() == reflect.Ptr {
fv = reflect.Indirect(fv)
}
return fv
}
func stringifyFlag(f Flag) string {
fv := flagValue(f)
switch f.(type) {
case IntSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyIntSliceFlag(f.(IntSliceFlag)))
case Int64SliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyInt64SliceFlag(f.(Int64SliceFlag)))
case StringSliceFlag:
return withEnvHint(fv.FieldByName("EnvVar").String(),
stringifyStringSliceFlag(f.(StringSliceFlag)))
}
placeholder, usage := unquoteUsage(fv.FieldByName("Usage").String())
needsPlaceholder := false
defaultValueString := ""
val := fv.FieldByName("Value")
if val.IsValid() {
needsPlaceholder = true
defaultValueString = fmt.Sprintf(" (default: %v)", val.Interface())
if val.Kind() == reflect.String && val.String() != "" {
defaultValueString = fmt.Sprintf(" (default: %q)", val.String())
}
}
if defaultValueString == " (default: )" {
defaultValueString = ""
}
if needsPlaceholder && placeholder == "" {
placeholder = defaultPlaceholder
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultValueString))
return withEnvHint(fv.FieldByName("EnvVar").String(),
fmt.Sprintf("%s\t%s", prefixedNames(fv.FieldByName("Name").String(), placeholder), usageWithDefault))
}
func stringifyIntSliceFlag(f IntSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyInt64SliceFlag(f Int64SliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, i := range f.Value.Value() {
defaultVals = append(defaultVals, fmt.Sprintf("%d", i))
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifyStringSliceFlag(f StringSliceFlag) string {
defaultVals := []string{}
if f.Value != nil && len(f.Value.Value()) > 0 {
for _, s := range f.Value.Value() {
if len(s) > 0 {
defaultVals = append(defaultVals, fmt.Sprintf("%q", s))
}
}
}
return stringifySliceFlag(f.Usage, f.Name, defaultVals)
}
func stringifySliceFlag(usage, name string, defaultVals []string) string {
placeholder, usage := unquoteUsage(usage)
if placeholder == "" {
placeholder = defaultPlaceholder
}
defaultVal := ""
if len(defaultVals) > 0 {
defaultVal = fmt.Sprintf(" (default: %s)", strings.Join(defaultVals, ", "))
}
usageWithDefault := strings.TrimSpace(fmt.Sprintf("%s%s", usage, defaultVal))
return fmt.Sprintf("%s\t%s", prefixedNames(name, placeholder), usageWithDefault)
}

627
vendor/github.com/codegangsta/cli/flag_generated.go generated vendored Normal file
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@ -0,0 +1,627 @@
package cli
import (
"flag"
"strconv"
"time"
)
// WARNING: This file is generated!
// BoolFlag is a flag with type bool
type BoolFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolFlag) GetName() string {
return f.Name
}
// Bool looks up the value of a local BoolFlag, returns
// false if not found
func (c *Context) Bool(name string) bool {
return lookupBool(name, c.flagSet)
}
// GlobalBool looks up the value of a global BoolFlag, returns
// false if not found
func (c *Context) GlobalBool(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBool(name, fs)
}
return false
}
func lookupBool(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return parsed
}
return false
}
// BoolTFlag is a flag with type bool that is true by default
type BoolTFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Destination *bool
}
// String returns a readable representation of this value
// (for usage defaults)
func (f BoolTFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f BoolTFlag) GetName() string {
return f.Name
}
// BoolT looks up the value of a local BoolTFlag, returns
// false if not found
func (c *Context) BoolT(name string) bool {
return lookupBoolT(name, c.flagSet)
}
// GlobalBoolT looks up the value of a global BoolTFlag, returns
// false if not found
func (c *Context) GlobalBoolT(name string) bool {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupBoolT(name, fs)
}
return false
}
func lookupBoolT(name string, set *flag.FlagSet) bool {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseBool(f.Value.String())
if err != nil {
return false
}
return parsed
}
return false
}
// DurationFlag is a flag with type time.Duration (see https://golang.org/pkg/time/#ParseDuration)
type DurationFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value time.Duration
Destination *time.Duration
}
// String returns a readable representation of this value
// (for usage defaults)
func (f DurationFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f DurationFlag) GetName() string {
return f.Name
}
// Duration looks up the value of a local DurationFlag, returns
// 0 if not found
func (c *Context) Duration(name string) time.Duration {
return lookupDuration(name, c.flagSet)
}
// GlobalDuration looks up the value of a global DurationFlag, returns
// 0 if not found
func (c *Context) GlobalDuration(name string) time.Duration {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupDuration(name, fs)
}
return 0
}
func lookupDuration(name string, set *flag.FlagSet) time.Duration {
f := set.Lookup(name)
if f != nil {
parsed, err := time.ParseDuration(f.Value.String())
if err != nil {
return 0
}
return parsed
}
return 0
}
// Float64Flag is a flag with type float64
type Float64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value float64
Destination *float64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Float64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Float64Flag) GetName() string {
return f.Name
}
// Float64 looks up the value of a local Float64Flag, returns
// 0 if not found
func (c *Context) Float64(name string) float64 {
return lookupFloat64(name, c.flagSet)
}
// GlobalFloat64 looks up the value of a global Float64Flag, returns
// 0 if not found
func (c *Context) GlobalFloat64(name string) float64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupFloat64(name, fs)
}
return 0
}
func lookupFloat64(name string, set *flag.FlagSet) float64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseFloat(f.Value.String(), 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// GenericFlag is a flag with type Generic
type GenericFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value Generic
}
// String returns a readable representation of this value
// (for usage defaults)
func (f GenericFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f GenericFlag) GetName() string {
return f.Name
}
// Generic looks up the value of a local GenericFlag, returns
// nil if not found
func (c *Context) Generic(name string) interface{} {
return lookupGeneric(name, c.flagSet)
}
// GlobalGeneric looks up the value of a global GenericFlag, returns
// nil if not found
func (c *Context) GlobalGeneric(name string) interface{} {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupGeneric(name, fs)
}
return nil
}
func lookupGeneric(name string, set *flag.FlagSet) interface{} {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value, error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64Flag is a flag with type int64
type Int64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int64
Destination *int64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64Flag) GetName() string {
return f.Name
}
// Int64 looks up the value of a local Int64Flag, returns
// 0 if not found
func (c *Context) Int64(name string) int64 {
return lookupInt64(name, c.flagSet)
}
// GlobalInt64 looks up the value of a global Int64Flag, returns
// 0 if not found
func (c *Context) GlobalInt64(name string) int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64(name, fs)
}
return 0
}
func lookupInt64(name string, set *flag.FlagSet) int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// IntFlag is a flag with type int
type IntFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value int
Destination *int
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntFlag) GetName() string {
return f.Name
}
// Int looks up the value of a local IntFlag, returns
// 0 if not found
func (c *Context) Int(name string) int {
return lookupInt(name, c.flagSet)
}
// GlobalInt looks up the value of a global IntFlag, returns
// 0 if not found
func (c *Context) GlobalInt(name string) int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt(name, fs)
}
return 0
}
func lookupInt(name string, set *flag.FlagSet) int {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseInt(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return int(parsed)
}
return 0
}
// IntSliceFlag is a flag with type *IntSlice
type IntSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *IntSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f IntSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f IntSliceFlag) GetName() string {
return f.Name
}
// IntSlice looks up the value of a local IntSliceFlag, returns
// nil if not found
func (c *Context) IntSlice(name string) []int {
return lookupIntSlice(name, c.flagSet)
}
// GlobalIntSlice looks up the value of a global IntSliceFlag, returns
// nil if not found
func (c *Context) GlobalIntSlice(name string) []int {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupIntSlice(name, fs)
}
return nil
}
func lookupIntSlice(name string, set *flag.FlagSet) []int {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*IntSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Int64SliceFlag is a flag with type *Int64Slice
type Int64SliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *Int64Slice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Int64SliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Int64SliceFlag) GetName() string {
return f.Name
}
// Int64Slice looks up the value of a local Int64SliceFlag, returns
// nil if not found
func (c *Context) Int64Slice(name string) []int64 {
return lookupInt64Slice(name, c.flagSet)
}
// GlobalInt64Slice looks up the value of a global Int64SliceFlag, returns
// nil if not found
func (c *Context) GlobalInt64Slice(name string) []int64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupInt64Slice(name, fs)
}
return nil
}
func lookupInt64Slice(name string, set *flag.FlagSet) []int64 {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*Int64Slice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// StringFlag is a flag with type string
type StringFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value string
Destination *string
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringFlag) GetName() string {
return f.Name
}
// String looks up the value of a local StringFlag, returns
// "" if not found
func (c *Context) String(name string) string {
return lookupString(name, c.flagSet)
}
// GlobalString looks up the value of a global StringFlag, returns
// "" if not found
func (c *Context) GlobalString(name string) string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupString(name, fs)
}
return ""
}
func lookupString(name string, set *flag.FlagSet) string {
f := set.Lookup(name)
if f != nil {
parsed, err := f.Value.String(), error(nil)
if err != nil {
return ""
}
return parsed
}
return ""
}
// StringSliceFlag is a flag with type *StringSlice
type StringSliceFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value *StringSlice
}
// String returns a readable representation of this value
// (for usage defaults)
func (f StringSliceFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f StringSliceFlag) GetName() string {
return f.Name
}
// StringSlice looks up the value of a local StringSliceFlag, returns
// nil if not found
func (c *Context) StringSlice(name string) []string {
return lookupStringSlice(name, c.flagSet)
}
// GlobalStringSlice looks up the value of a global StringSliceFlag, returns
// nil if not found
func (c *Context) GlobalStringSlice(name string) []string {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupStringSlice(name, fs)
}
return nil
}
func lookupStringSlice(name string, set *flag.FlagSet) []string {
f := set.Lookup(name)
if f != nil {
parsed, err := (f.Value.(*StringSlice)).Value(), error(nil)
if err != nil {
return nil
}
return parsed
}
return nil
}
// Uint64Flag is a flag with type uint64
type Uint64Flag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint64
Destination *uint64
}
// String returns a readable representation of this value
// (for usage defaults)
func (f Uint64Flag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f Uint64Flag) GetName() string {
return f.Name
}
// Uint64 looks up the value of a local Uint64Flag, returns
// 0 if not found
func (c *Context) Uint64(name string) uint64 {
return lookupUint64(name, c.flagSet)
}
// GlobalUint64 looks up the value of a global Uint64Flag, returns
// 0 if not found
func (c *Context) GlobalUint64(name string) uint64 {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint64(name, fs)
}
return 0
}
func lookupUint64(name string, set *flag.FlagSet) uint64 {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return parsed
}
return 0
}
// UintFlag is a flag with type uint
type UintFlag struct {
Name string
Usage string
EnvVar string
Hidden bool
Value uint
Destination *uint
}
// String returns a readable representation of this value
// (for usage defaults)
func (f UintFlag) String() string {
return FlagStringer(f)
}
// GetName returns the name of the flag
func (f UintFlag) GetName() string {
return f.Name
}
// Uint looks up the value of a local UintFlag, returns
// 0 if not found
func (c *Context) Uint(name string) uint {
return lookupUint(name, c.flagSet)
}
// GlobalUint looks up the value of a global UintFlag, returns
// 0 if not found
func (c *Context) GlobalUint(name string) uint {
if fs := lookupGlobalFlagSet(name, c); fs != nil {
return lookupUint(name, fs)
}
return 0
}
func lookupUint(name string, set *flag.FlagSet) uint {
f := set.Lookup(name)
if f != nil {
parsed, err := strconv.ParseUint(f.Value.String(), 0, 64)
if err != nil {
return 0
}
return uint(parsed)
}
return 0
}

28
vendor/github.com/codegangsta/cli/funcs.go generated vendored Normal file
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@ -0,0 +1,28 @@
package cli
// BashCompleteFunc is an action to execute when the bash-completion flag is set
type BashCompleteFunc func(*Context)
// BeforeFunc is an action to execute before any subcommands are run, but after
// the context is ready if a non-nil error is returned, no subcommands are run
type BeforeFunc func(*Context) error
// AfterFunc is an action to execute after any subcommands are run, but after the
// subcommand has finished it is run even if Action() panics
type AfterFunc func(*Context) error
// ActionFunc is the action to execute when no subcommands are specified
type ActionFunc func(*Context) error
// CommandNotFoundFunc is executed if the proper command cannot be found
type CommandNotFoundFunc func(*Context, string)
// OnUsageErrorFunc is executed if an usage error occurs. This is useful for displaying
// customized usage error messages. This function is able to replace the
// original error messages. If this function is not set, the "Incorrect usage"
// is displayed and the execution is interrupted.
type OnUsageErrorFunc func(context *Context, err error, isSubcommand bool) error
// FlagStringFunc is used by the help generation to display a flag, which is
// expected to be a single line.
type FlagStringFunc func(Flag) string

244
vendor/github.com/codegangsta/cli/generate-flag-types generated vendored Executable file
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@ -0,0 +1,244 @@
#!/usr/bin/env python
"""
The flag types that ship with the cli library have many things in common, and
so we can take advantage of the `go generate` command to create much of the
source code from a list of definitions. These definitions attempt to cover
the parts that vary between flag types, and should evolve as needed.
An example of the minimum definition needed is:
{
"name": "SomeType",
"type": "sometype",
"context_default": "nil"
}
In this example, the code generated for the `cli` package will include a type
named `SomeTypeFlag` that is expected to wrap a value of type `sometype`.
Fetching values by name via `*cli.Context` will default to a value of `nil`.
A more complete, albeit somewhat redundant, example showing all available
definition keys is:
{
"name": "VeryMuchType",
"type": "*VeryMuchType",
"value": true,
"dest": false,
"doctail": " which really only wraps a []float64, oh well!",
"context_type": "[]float64",
"context_default": "nil",
"parser": "parseVeryMuchType(f.Value.String())",
"parser_cast": "[]float64(parsed)"
}
The meaning of each field is as follows:
name (string) - The type "name", which will be suffixed with
`Flag` when generating the type definition
for `cli` and the wrapper type for `altsrc`
type (string) - The type that the generated `Flag` type for `cli`
is expected to "contain" as its `.Value` member
value (bool) - Should the generated `cli` type have a `Value`
member?
dest (bool) - Should the generated `cli` type support a
destination pointer?
doctail (string) - Additional docs for the `cli` flag type comment
context_type (string) - The literal type used in the `*cli.Context`
reader func signature
context_default (string) - The literal value used as the default by the
`*cli.Context` reader funcs when no value is
present
parser (string) - Literal code used to parse the flag `f`,
expected to have a return signature of
(value, error)
parser_cast (string) - Literal code used to cast the `parsed` value
returned from the `parser` code
"""
from __future__ import print_function, unicode_literals
import argparse
import json
import os
import subprocess
import sys
import tempfile
import textwrap
class _FancyFormatter(argparse.ArgumentDefaultsHelpFormatter,
argparse.RawDescriptionHelpFormatter):
pass
def main(sysargs=sys.argv[:]):
parser = argparse.ArgumentParser(
description='Generate flag type code!',
formatter_class=_FancyFormatter)
parser.add_argument(
'package',
type=str, default='cli', choices=_WRITEFUNCS.keys(),
help='Package for which flag types will be generated'
)
parser.add_argument(
'-i', '--in-json',
type=argparse.FileType('r'),
default=sys.stdin,
help='Input JSON file which defines each type to be generated'
)
parser.add_argument(
'-o', '--out-go',
type=argparse.FileType('w'),
default=sys.stdout,
help='Output file/stream to which generated source will be written'
)
parser.epilog = __doc__
args = parser.parse_args(sysargs[1:])
_generate_flag_types(_WRITEFUNCS[args.package], args.out_go, args.in_json)
return 0
def _generate_flag_types(writefunc, output_go, input_json):
types = json.load(input_json)
tmp = tempfile.NamedTemporaryFile(suffix='.go', delete=False)
writefunc(tmp, types)
tmp.close()
new_content = subprocess.check_output(
['goimports', tmp.name]
).decode('utf-8')
print(new_content, file=output_go, end='')
output_go.flush()
os.remove(tmp.name)
def _set_typedef_defaults(typedef):
typedef.setdefault('doctail', '')
typedef.setdefault('context_type', typedef['type'])
typedef.setdefault('dest', True)
typedef.setdefault('value', True)
typedef.setdefault('parser', 'f.Value, error(nil)')
typedef.setdefault('parser_cast', 'parsed')
def _write_cli_flag_types(outfile, types):
_fwrite(outfile, """\
package cli
// WARNING: This file is generated!
""")
for typedef in types:
_set_typedef_defaults(typedef)
_fwrite(outfile, """\
// {name}Flag is a flag with type {type}{doctail}
type {name}Flag struct {{
Name string
Usage string
EnvVar string
Hidden bool
""".format(**typedef))
if typedef['value']:
_fwrite(outfile, """\
Value {type}
""".format(**typedef))
if typedef['dest']:
_fwrite(outfile, """\
Destination *{type}
""".format(**typedef))
_fwrite(outfile, "\n}\n\n")
_fwrite(outfile, """\
// String returns a readable representation of this value
// (for usage defaults)
func (f {name}Flag) String() string {{
return FlagStringer(f)
}}
// GetName returns the name of the flag
func (f {name}Flag) GetName() string {{
return f.Name
}}
// {name} looks up the value of a local {name}Flag, returns
// {context_default} if not found
func (c *Context) {name}(name string) {context_type} {{
return lookup{name}(name, c.flagSet)
}}
// Global{name} looks up the value of a global {name}Flag, returns
// {context_default} if not found
func (c *Context) Global{name}(name string) {context_type} {{
if fs := lookupGlobalFlagSet(name, c); fs != nil {{
return lookup{name}(name, fs)
}}
return {context_default}
}}
func lookup{name}(name string, set *flag.FlagSet) {context_type} {{
f := set.Lookup(name)
if f != nil {{
parsed, err := {parser}
if err != nil {{
return {context_default}
}}
return {parser_cast}
}}
return {context_default}
}}
""".format(**typedef))
def _write_altsrc_flag_types(outfile, types):
_fwrite(outfile, """\
package altsrc
// WARNING: This file is generated!
""")
for typedef in types:
_set_typedef_defaults(typedef)
_fwrite(outfile, """\
// {name}Flag is the flag type that wraps cli.{name}Flag to allow
// for other values to be specified
type {name}Flag struct {{
cli.{name}Flag
set *flag.FlagSet
}}
// New{name}Flag creates a new {name}Flag
func New{name}Flag(fl cli.{name}Flag) *{name}Flag {{
return &{name}Flag{{{name}Flag: fl, set: nil}}
}}
// Apply saves the flagSet for later usage calls, then calls the
// wrapped {name}Flag.Apply
func (f *{name}Flag) Apply(set *flag.FlagSet) {{
f.set = set
f.{name}Flag.Apply(set)
}}
""".format(**typedef))
def _fwrite(outfile, text):
print(textwrap.dedent(text), end='', file=outfile)
_WRITEFUNCS = {
'cli': _write_cli_flag_types,
'altsrc': _write_altsrc_flag_types
}
if __name__ == '__main__':
sys.exit(main())

267
vendor/github.com/codegangsta/cli/help.go generated vendored Normal file
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@ -0,0 +1,267 @@
package cli
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
)
// AppHelpTemplate is the text template for the Default help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var AppHelpTemplate = `NAME:
{{.Name}} - {{.Usage}}
USAGE:
{{if .UsageText}}{{.UsageText}}{{else}}{{.HelpName}} {{if .VisibleFlags}}[global options]{{end}}{{if .Commands}} command [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{end}}
{{if .Version}}{{if not .HideVersion}}
VERSION:
{{.Version}}
{{end}}{{end}}{{if len .Authors}}
AUTHOR(S):
{{range .Authors}}{{.}}{{end}}
{{end}}{{if .VisibleCommands}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{end}}{{if .VisibleFlags}}
GLOBAL OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}{{if .Copyright}}
COPYRIGHT:
{{.Copyright}}
{{end}}
`
// CommandHelpTemplate is the text template for the command help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var CommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}}{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}{{if .Category}}
CATEGORY:
{{.Category}}{{end}}{{if .Description}}
DESCRIPTION:
{{.Description}}{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
// SubcommandHelpTemplate is the text template for the subcommand help topic.
// cli.go uses text/template to render templates. You can
// render custom help text by setting this variable.
var SubcommandHelpTemplate = `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} command{{if .VisibleFlags}} [command options]{{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}[arguments...]{{end}}
COMMANDS:{{range .VisibleCategories}}{{if .Name}}
{{.Name}}:{{end}}{{range .VisibleCommands}}
{{join .Names ", "}}{{"\t"}}{{.Usage}}{{end}}
{{end}}{{if .VisibleFlags}}
OPTIONS:
{{range .VisibleFlags}}{{.}}
{{end}}{{end}}
`
var helpCommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
ShowAppHelp(c)
return nil
},
}
var helpSubcommand = Command{
Name: "help",
Aliases: []string{"h"},
Usage: "Shows a list of commands or help for one command",
ArgsUsage: "[command]",
Action: func(c *Context) error {
args := c.Args()
if args.Present() {
return ShowCommandHelp(c, args.First())
}
return ShowSubcommandHelp(c)
},
}
// Prints help for the App or Command
type helpPrinter func(w io.Writer, templ string, data interface{})
// HelpPrinter is a function that writes the help output. If not set a default
// is used. The function signature is:
// func(w io.Writer, templ string, data interface{})
var HelpPrinter helpPrinter = printHelp
// VersionPrinter prints the version for the App
var VersionPrinter = printVersion
// ShowAppHelp is an action that displays the help.
func ShowAppHelp(c *Context) error {
HelpPrinter(c.App.Writer, AppHelpTemplate, c.App)
return nil
}
// DefaultAppComplete prints the list of subcommands as the default app completion method
func DefaultAppComplete(c *Context) {
for _, command := range c.App.Commands {
if command.Hidden {
continue
}
for _, name := range command.Names() {
fmt.Fprintln(c.App.Writer, name)
}
}
}
// ShowCommandHelp prints help for the given command
func ShowCommandHelp(ctx *Context, command string) error {
// show the subcommand help for a command with subcommands
if command == "" {
HelpPrinter(ctx.App.Writer, SubcommandHelpTemplate, ctx.App)
return nil
}
for _, c := range ctx.App.Commands {
if c.HasName(command) {
HelpPrinter(ctx.App.Writer, CommandHelpTemplate, c)
return nil
}
}
if ctx.App.CommandNotFound == nil {
return NewExitError(fmt.Sprintf("No help topic for '%v'", command), 3)
}
ctx.App.CommandNotFound(ctx, command)
return nil
}
// ShowSubcommandHelp prints help for the given subcommand
func ShowSubcommandHelp(c *Context) error {
return ShowCommandHelp(c, c.Command.Name)
}
// ShowVersion prints the version number of the App
func ShowVersion(c *Context) {
VersionPrinter(c)
}
func printVersion(c *Context) {
fmt.Fprintf(c.App.Writer, "%v version %v\n", c.App.Name, c.App.Version)
}
// ShowCompletions prints the lists of commands within a given context
func ShowCompletions(c *Context) {
a := c.App
if a != nil && a.BashComplete != nil {
a.BashComplete(c)
}
}
// ShowCommandCompletions prints the custom completions for a given command
func ShowCommandCompletions(ctx *Context, command string) {
c := ctx.App.Command(command)
if c != nil && c.BashComplete != nil {
c.BashComplete(ctx)
}
}
func printHelp(out io.Writer, templ string, data interface{}) {
funcMap := template.FuncMap{
"join": strings.Join,
}
w := tabwriter.NewWriter(out, 1, 8, 2, ' ', 0)
t := template.Must(template.New("help").Funcs(funcMap).Parse(templ))
err := t.Execute(w, data)
if err != nil {
// If the writer is closed, t.Execute will fail, and there's nothing
// we can do to recover.
if os.Getenv("CLI_TEMPLATE_ERROR_DEBUG") != "" {
fmt.Fprintf(ErrWriter, "CLI TEMPLATE ERROR: %#v\n", err)
}
return
}
w.Flush()
}
func checkVersion(c *Context) bool {
found := false
if VersionFlag.Name != "" {
eachName(VersionFlag.Name, func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkHelp(c *Context) bool {
found := false
if HelpFlag.Name != "" {
eachName(HelpFlag.Name, func(name string) {
if c.GlobalBool(name) || c.Bool(name) {
found = true
}
})
}
return found
}
func checkCommandHelp(c *Context, name string) bool {
if c.Bool("h") || c.Bool("help") {
ShowCommandHelp(c, name)
return true
}
return false
}
func checkSubcommandHelp(c *Context) bool {
if c.Bool("h") || c.Bool("help") {
ShowSubcommandHelp(c)
return true
}
return false
}
func checkCompletions(c *Context) bool {
if (c.GlobalBool(BashCompletionFlag.Name) || c.Bool(BashCompletionFlag.Name)) && c.App.EnableBashCompletion {
ShowCompletions(c)
return true
}
return false
}
func checkCommandCompletions(c *Context, name string) bool {
if c.Bool(BashCompletionFlag.Name) && c.App.EnableBashCompletion {
ShowCommandCompletions(c, name)
return true
}
return false
}

118
vendor/github.com/codegangsta/cli/runtests generated vendored Executable file
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@ -0,0 +1,118 @@
#!/usr/bin/env python
from __future__ import print_function
import argparse
import os
import sys
import tempfile
from subprocess import check_call, check_output
PACKAGE_NAME = os.environ.get(
'CLI_PACKAGE_NAME', 'github.com/urfave/cli'
)
def main(sysargs=sys.argv[:]):
targets = {
'vet': _vet,
'test': _test,
'gfmrun': _gfmrun,
'toc': _toc,
'gen': _gen,
}
parser = argparse.ArgumentParser()
parser.add_argument(
'target', nargs='?', choices=tuple(targets.keys()), default='test'
)
args = parser.parse_args(sysargs[1:])
targets[args.target]()
return 0
def _test():
if check_output('go version'.split()).split()[2] < 'go1.2':
_run('go test -v .')
return
coverprofiles = []
for subpackage in ['', 'altsrc']:
coverprofile = 'cli.coverprofile'
if subpackage != '':
coverprofile = '{}.coverprofile'.format(subpackage)
coverprofiles.append(coverprofile)
_run('go test -v'.split() + [
'-coverprofile={}'.format(coverprofile),
('{}/{}'.format(PACKAGE_NAME, subpackage)).rstrip('/')
])
combined_name = _combine_coverprofiles(coverprofiles)
_run('go tool cover -func={}'.format(combined_name))
os.remove(combined_name)
def _gfmrun():
_run(['gfmrun', '-c', str(_gfmrun_count()), '-s', 'README.md'])
def _vet():
_run('go vet ./...')
def _toc():
_run('node_modules/.bin/markdown-toc -i README.md')
_run('git diff --exit-code')
def _gen():
go_version = check_output('go version'.split()).split()[2]
if go_version < 'go1.4':
print('runtests: skip on {}'.format(go_version), file=sys.stderr)
return
_run('go generate ./...')
_run('git diff --exit-code')
def _run(command):
if hasattr(command, 'split'):
command = command.split()
print('runtests: {}'.format(' '.join(command)), file=sys.stderr)
check_call(command)
def _gfmrun_count():
with open('README.md') as infile:
lines = infile.read().splitlines()
return len(filter(_is_go_runnable, lines))
def _is_go_runnable(line):
return line.startswith('package main')
def _combine_coverprofiles(coverprofiles):
combined = tempfile.NamedTemporaryFile(
suffix='.coverprofile', delete=False
)
combined.write('mode: set\n')
for coverprofile in coverprofiles:
with open(coverprofile, 'r') as infile:
for line in infile.readlines():
if not line.startswith('mode: '):
combined.write(line)
combined.flush()
name = combined.name
combined.close()
return name
if __name__ == '__main__':
sys.exit(main())

13
vendor/github.com/davecgh/go-spew/LICENSE generated vendored
View File

@ -1,13 +0,0 @@
Copyright (c) 2012-2013 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

151
vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored
View File

@ -1,151 +0,0 @@
// Copyright (c) 2015 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine and "-tags disableunsafe"
// is not added to the go build command line.
// +build !appengine,!disableunsafe
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
var (
// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
// internal reflect.Value fields. These values are valid before golang
// commit ecccf07e7f9d which changed the format. The are also valid
// after commit 82f48826c6c7 which changed the format again to mirror
// the original format. Code in the init function updates these offsets
// as necessary.
offsetPtr = uintptr(ptrSize)
offsetScalar = uintptr(0)
offsetFlag = uintptr(ptrSize * 2)
// flagKindWidth and flagKindShift indicate various bits that the
// reflect package uses internally to track kind information.
//
// flagRO indicates whether or not the value field of a reflect.Value is
// read-only.
//
// flagIndir indicates whether the value field of a reflect.Value is
// the actual data or a pointer to the data.
//
// These values are valid before golang commit 90a7c3c86944 which
// changed their positions. Code in the init function updates these
// flags as necessary.
flagKindWidth = uintptr(5)
flagKindShift = uintptr(flagKindWidth - 1)
flagRO = uintptr(1 << 0)
flagIndir = uintptr(1 << 1)
)
func init() {
// Older versions of reflect.Value stored small integers directly in the
// ptr field (which is named val in the older versions). Versions
// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
// scalar for this purpose which unfortunately came before the flag
// field, so the offset of the flag field is different for those
// versions.
//
// This code constructs a new reflect.Value from a known small integer
// and checks if the size of the reflect.Value struct indicates it has
// the scalar field. When it does, the offsets are updated accordingly.
vv := reflect.ValueOf(0xf00)
if unsafe.Sizeof(vv) == (ptrSize * 4) {
offsetScalar = ptrSize * 2
offsetFlag = ptrSize * 3
}
// Commit 90a7c3c86944 changed the flag positions such that the low
// order bits are the kind. This code extracts the kind from the flags
// field and ensures it's the correct type. When it's not, the flag
// order has been changed to the newer format, so the flags are updated
// accordingly.
upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
upfv := *(*uintptr)(upf)
flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
flagKindShift = 0
flagRO = 1 << 5
flagIndir = 1 << 6
// Commit adf9b30e5594 modified the flags to separate the
// flagRO flag into two bits which specifies whether or not the
// field is embedded. This causes flagIndir to move over a bit
// and means that flagRO is the combination of either of the
// original flagRO bit and the new bit.
//
// This code detects the change by extracting what used to be
// the indirect bit to ensure it's set. When it's not, the flag
// order has been changed to the newer format, so the flags are
// updated accordingly.
if upfv&flagIndir == 0 {
flagRO = 3 << 5
flagIndir = 1 << 7
}
}
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
indirects := 1
vt := v.Type()
upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
if rvf&flagIndir != 0 {
vt = reflect.PtrTo(v.Type())
indirects++
} else if offsetScalar != 0 {
// The value is in the scalar field when it's not one of the
// reference types.
switch vt.Kind() {
case reflect.Uintptr:
case reflect.Chan:
case reflect.Func:
case reflect.Map:
case reflect.Ptr:
case reflect.UnsafePointer:
default:
upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
offsetScalar)
}
}
pv := reflect.NewAt(vt, upv)
rv = pv
for i := 0; i < indirects; i++ {
rv = rv.Elem()
}
return rv
}

37
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored
View File

@ -1,37 +0,0 @@
// Copyright (c) 2015 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when either the code is running on Google App Engine or "-tags disableunsafe"
// is added to the go build command line.
// +build appengine disableunsafe
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

341
vendor/github.com/davecgh/go-spew/spew/common.go generated vendored
View File

@ -1,341 +0,0 @@
/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "disableunsafe" build tag specified.
DisablePointerMethods bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

509
vendor/github.com/davecgh/go-spew/spew/dump.go generated vendored
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@ -1,509 +0,0 @@
/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound == true:
d.w.Write(nilAngleBytes)
case cycleFound == true:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

419
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@ -1,419 +0,0 @@
/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound == true:
f.fs.Write(nilAngleBytes)
case cycleFound == true:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

148
vendor/github.com/davecgh/go-spew/spew/spew.go generated vendored
View File

@ -1,148 +0,0 @@
/*
* Copyright (c) 2013 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

202
vendor/github.com/drone/drone-go/LICENSE generated vendored
View File

@ -1,202 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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404
vendor/github.com/drone/drone-go/drone/client.go generated vendored
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@ -1,404 +0,0 @@
package drone
//go:generate mockery -all
//go:generate mv mocks/Client.go mocks/client.go
import (
"bytes"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"golang.org/x/oauth2"
)
const (
pathSelf = "%s/api/user"
pathFeed = "%s/api/user/feed"
pathRepos = "%s/api/user/repos"
pathRepo = "%s/api/repos/%s/%s"
pathEncrypt = "%s/api/repos/%s/%s/encrypt"
pathBuilds = "%s/api/repos/%s/%s/builds"
pathBuild = "%s/api/repos/%s/%s/builds/%v"
pathJob = "%s/api/repos/%s/%s/builds/%d/%d"
pathLog = "%s/api/repos/%s/%s/logs/%d/%d"
pathKey = "%s/api/repos/%s/%s/key"
pathSign = "%s/api/repos/%s/%s/sign"
pathSecrets = "%s/api/repos/%s/%s/secrets"
pathSecret = "%s/api/repos/%s/%s/secrets/%s"
pathNodes = "%s/api/nodes"
pathNode = "%s/api/nodes/%d"
pathUsers = "%s/api/users"
pathUser = "%s/api/users/%s"
)
type client struct {
client *http.Client
base string // base url
}
// NewClient returns a client at the specified url.
func NewClient(uri string) Client {
return &client{http.DefaultClient, uri}
}
// NewClientToken returns a client at the specified url that
// authenticates all outbound requests with the given token.
func NewClientToken(uri, token string) Client {
config := new(oauth2.Config)
auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token})
return &client{auther, uri}
}
// NewClientTokenTLS returns a client at the specified url that
// authenticates all outbound requests with the given token and
// tls.Config if provided.
func NewClientTokenTLS(uri, token string, c *tls.Config) Client {
config := new(oauth2.Config)
auther := config.Client(oauth2.NoContext, &oauth2.Token{AccessToken: token})
if c != nil {
auther.Transport.(*oauth2.Transport).Base = &http.Transport{TLSClientConfig: c}
}
return &client{auther, uri}
}
// SetClient sets the default http client. This should be
// used in conjunction with golang.org/x/oauth2 to
// authenticate requests to the Drone server.
func (c *client) SetClient(client *http.Client) {
c.client = client
}
// Self returns the currently authenticated user.
func (c *client) Self() (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathSelf, c.base)
err := c.get(uri, out)
return out, err
}
// User returns a user by login.
func (c *client) User(login string) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUser, c.base, login)
err := c.get(uri, out)
return out, err
}
// UserList returns a list of all registered users.
func (c *client) UserList() ([]*User, error) {
var out []*User
uri := fmt.Sprintf(pathUsers, c.base)
err := c.get(uri, &out)
return out, err
}
// UserPost creates a new user account.
func (c *client) UserPost(in *User) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUsers, c.base)
err := c.post(uri, in, out)
return out, err
}
// UserPatch updates a user account.
func (c *client) UserPatch(in *User) (*User, error) {
out := new(User)
uri := fmt.Sprintf(pathUser, c.base, in.Login)
err := c.patch(uri, in, out)
return out, err
}
// UserDel deletes a user account.
func (c *client) UserDel(login string) error {
uri := fmt.Sprintf(pathUser, c.base, login)
err := c.delete(uri)
return err
}
// UserFeed returns the user's activity feed.
func (c *client) UserFeed() ([]*Activity, error) {
var out []*Activity
uri := fmt.Sprintf(pathFeed, c.base)
err := c.get(uri, &out)
return out, err
}
// Repo returns a repository by name.
func (c *client) Repo(owner string, name string) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.get(uri, out)
return out, err
}
// RepoList returns a list of all repositories to which
// the user has explicit access in the host system.
func (c *client) RepoList() ([]*Repo, error) {
var out []*Repo
uri := fmt.Sprintf(pathRepos, c.base)
err := c.get(uri, &out)
return out, err
}
// RepoPost activates a repository.
func (c *client) RepoPost(owner string, name string) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.post(uri, nil, out)
return out, err
}
// RepoPatch updates a repository.
func (c *client) RepoPatch(in *Repo) (*Repo, error) {
out := new(Repo)
uri := fmt.Sprintf(pathRepo, c.base, in.Owner, in.Name)
err := c.patch(uri, in, out)
return out, err
}
// RepoDel deletes a repository.
func (c *client) RepoDel(owner, name string) error {
uri := fmt.Sprintf(pathRepo, c.base, owner, name)
err := c.delete(uri)
return err
}
// RepoKey returns a repository public key.
func (c *client) RepoKey(owner, name string) (*Key, error) {
out := new(Key)
uri := fmt.Sprintf(pathKey, c.base, owner, name)
rc, err := c.stream(uri, "GET", nil, nil)
if err != nil {
return nil, err
}
defer rc.Close()
raw, _ := ioutil.ReadAll(rc)
out.Public = string(raw)
return out, err
}
// Build returns a repository build by number.
func (c *client) Build(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, num)
err := c.get(uri, out)
return out, err
}
// Build returns the latest repository build by branch.
func (c *client) BuildLast(owner, name, branch string) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, "latest")
if len(branch) != 0 {
uri += "?branch=" + branch
}
err := c.get(uri, out)
return out, err
}
// BuildList returns a list of recent builds for the
// the specified repository.
func (c *client) BuildList(owner, name string) ([]*Build, error) {
var out []*Build
uri := fmt.Sprintf(pathBuilds, c.base, owner, name)
err := c.get(uri, &out)
return out, err
}
// BuildStart re-starts a stopped build.
func (c *client) BuildStart(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild, c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// BuildStop cancels the running job.
func (c *client) BuildStop(owner, name string, num, job int) error {
uri := fmt.Sprintf(pathJob, c.base, owner, name, num, job)
err := c.delete(uri)
return err
}
// BuildFork re-starts a stopped build with a new build number,
// preserving the prior history.
func (c *client) BuildFork(owner, name string, num int) (*Build, error) {
out := new(Build)
uri := fmt.Sprintf(pathBuild+"?fork=true", c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// BuildLogs returns the build logs for the specified job.
func (c *client) BuildLogs(owner, name string, num, job int) (io.ReadCloser, error) {
uri := fmt.Sprintf(pathLog, c.base, owner, name, num, job)
return c.stream(uri, "GET", nil, nil)
}
// Deploy triggers a deployment for an existing build using the
// specified target environment.
func (c *client) Deploy(owner, name string, num int, env string) (*Build, error) {
out := new(Build)
val := new(url.Values)
val.Set("fork", "true")
val.Set("event", "deployment")
val.Set("deploy_to", env)
uri := fmt.Sprintf(pathBuild+"?"+val.Encode(), c.base, owner, name, num)
err := c.post(uri, nil, out)
return out, err
}
// SecretPost create or updates a repository secret.
func (c *client) SecretPost(owner, name string, secret *Secret) error {
uri := fmt.Sprintf(pathSecrets, c.base, owner, name)
return c.post(uri, secret, nil)
}
// SecretDel deletes a named repository secret.
func (c *client) SecretDel(owner, name, secret string) error {
uri := fmt.Sprintf(pathSecret, c.base, owner, name, secret)
return c.delete(uri)
}
// Sign returns a cryptographic signature for the input string.
func (c *client) Sign(owner, name string, in []byte) ([]byte, error) {
buf := bytes.Buffer{}
buf.Write(in)
uri := fmt.Sprintf(pathSign, c.base, owner, name)
rc, err := c.stream(uri, "POST", buf, nil)
if err != nil {
return nil, err
}
defer rc.Close()
return ioutil.ReadAll(rc)
}
// Node returns a node by id.
func (c *client) Node(id int64) (*Node, error) {
out := new(Node)
uri := fmt.Sprintf(pathNode, c.base, id)
err := c.get(uri, out)
return out, err
}
// NodeList returns a list of all registered worker nodes.
func (c *client) NodeList() ([]*Node, error) {
var out []*Node
uri := fmt.Sprintf(pathNodes, c.base)
err := c.get(uri, &out)
return out, err
}
// NodePost registers a new worker node.
func (c *client) NodePost(in *Node) (*Node, error) {
out := new(Node)
uri := fmt.Sprintf(pathNodes, c.base)
err := c.post(uri, in, out)
return out, err
}
// NodeDel deletes a worker node.
func (c *client) NodeDel(id int64) error {
uri := fmt.Sprintf(pathNode, c.base, id)
err := c.delete(uri)
return err
}
//
// http request helper functions
//
// helper function for making an http GET request.
func (c *client) get(rawurl string, out interface{}) error {
return c.do(rawurl, "GET", nil, out)
}
// helper function for making an http POST request.
func (c *client) post(rawurl string, in, out interface{}) error {
return c.do(rawurl, "POST", in, out)
}
// helper function for making an http PUT request.
func (c *client) put(rawurl string, in, out interface{}) error {
return c.do(rawurl, "PUT", in, out)
}
// helper function for making an http PATCH request.
func (c *client) patch(rawurl string, in, out interface{}) error {
return c.do(rawurl, "PATCH", in, out)
}
// helper function for making an http DELETE request.
func (c *client) delete(rawurl string) error {
return c.do(rawurl, "DELETE", nil, nil)
}
// helper function to make an http request
func (c *client) do(rawurl, method string, in, out interface{}) error {
// executes the http request and returns the body as
// and io.ReadCloser
body, err := c.stream(rawurl, method, in, out)
if err != nil {
return err
}
defer body.Close()
// if a json response is expected, parse and return
// the json response.
if out != nil {
return json.NewDecoder(body).Decode(out)
}
return nil
}
// helper function to stream an http request
func (c *client) stream(rawurl, method string, in, out interface{}) (io.ReadCloser, error) {
uri, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
// if we are posting or putting data, we need to
// write it to the body of the request.
var buf io.ReadWriter
if in == nil {
// nothing
} else if rw, ok := in.(io.ReadWriter); ok {
buf = rw
} else {
buf = new(bytes.Buffer)
err := json.NewEncoder(buf).Encode(in)
if err != nil {
return nil, err
}
}
// creates a new http request to bitbucket.
req, err := http.NewRequest(method, uri.String(), buf)
if err != nil {
return nil, err
}
if in == nil {
// nothing
} else if _, ok := in.(io.ReadWriter); ok {
req.Header.Set("Content-Type", "plain/text")
} else {
req.Header.Set("Content-Type", "application/json")
}
resp, err := c.client.Do(req)
if err != nil {
return nil, err
}
if resp.StatusCode > http.StatusPartialContent {
defer resp.Body.Close()
out, _ := ioutil.ReadAll(resp.Body)
return nil, fmt.Errorf(string(out))
}
return resp.Body, nil
}

48
vendor/github.com/drone/drone-go/drone/const.go generated vendored
View File

@ -1,48 +0,0 @@
package drone
// Events
const (
EventPush = "push"
EventPull = "pull_request"
EventTag = "tag"
EventDeploy = "deployment"
)
// Statuses
const (
StatusSkipped = "skipped"
StatusPending = "pending"
StatusRunning = "running"
StatusSuccess = "success"
StatusFailure = "failure"
StatusKilled = "killed"
StatusError = "error"
)
// Architectures
const (
Freebsd_386 uint = iota
Freebsd_amd64
Freebsd_arm
Linux_386
Linux_amd64
Linux_arm
Linux_arm64
Solaris_amd64
Windows_386
Windows_amd64
)
// Architecture Map
var Archs = map[string]uint{
"freebsd_386": Freebsd_386,
"freebsd_amd64": Freebsd_amd64,
"freebsd_arm": Freebsd_arm,
"linux_386": Linux_386,
"linux_amd64": Linux_amd64,
"linux_arm": Linux_arm,
"linux_arm64": Linux_arm64,
"solaris_amd64": Solaris_amd64,
"windows_386": Windows_386,
"windows_amd64": Windows_amd64,
}

95
vendor/github.com/drone/drone-go/drone/interface.go generated vendored
View File

@ -1,95 +0,0 @@
package drone
import "io"
// Client describes a drone client.
type Client interface {
// Self returns the currently authenticated user.
Self() (*User, error)
// User returns a user by login.
User(string) (*User, error)
// UserList returns a list of all registered users.
UserList() ([]*User, error)
// UserPost creates a new user account.
UserPost(*User) (*User, error)
// UserPatch updates a user account.
UserPatch(*User) (*User, error)
// UserDel deletes a user account.
UserDel(string) error
// UserFeed returns the user's activity feed.
UserFeed() ([]*Activity, error)
// Repo returns a repository by name.
Repo(string, string) (*Repo, error)
// RepoList returns a list of all repositories to which
// the user has explicit access in the host system.
RepoList() ([]*Repo, error)
// RepoPost activates a repository.
RepoPost(string, string) (*Repo, error)
// RepoPatch updates a repository.
RepoPatch(*Repo) (*Repo, error)
// RepoDel deletes a repository.
RepoDel(string, string) error
// RepoKey returns a repository public key.
RepoKey(string, string) (*Key, error)
// Build returns a repository build by number.
Build(string, string, int) (*Build, error)
// BuildLast returns the latest repository build by branch.
// An empty branch will result in the default branch.
BuildLast(string, string, string) (*Build, error)
// BuildList returns a list of recent builds for the
// the specified repository.
BuildList(string, string) ([]*Build, error)
// BuildStart re-starts a stopped build.
BuildStart(string, string, int) (*Build, error)
// BuildStop stops the specified running job for given build.
BuildStop(string, string, int, int) error
// BuildFork re-starts a stopped build with a new build number,
// preserving the prior history.
BuildFork(string, string, int) (*Build, error)
// BuildLogs returns the build logs for the specified job.
BuildLogs(string, string, int, int) (io.ReadCloser, error)
// Deploy triggers a deployment for an existing build using the
// specified target environment.
Deploy(string, string, int, string) (*Build, error)
// Sign returns a cryptographic signature for the input string.
Sign(string, string, []byte) ([]byte, error)
// SecretPost create or updates a repository secret.
SecretPost(string, string, *Secret) error
// SecretDel deletes a named repository secret.
SecretDel(string, string, string) error
// Node returns a node by id.
Node(int64) (*Node, error)
// NodeList returns a list of all registered worker nodes.
NodeList() ([]*Node, error)
// NodePost registers a new worker node.
NodePost(*Node) (*Node, error)
// NodeDel deletes a worker node.
NodeDel(int64) error
}

209
vendor/github.com/drone/drone-go/drone/types.go generated vendored
View File

@ -1,209 +0,0 @@
package drone
import "encoding/json"
// User represents a user account.
type User struct {
ID int64 `json:"id"`
Login string `json:"login"`
Email string `json:"email"`
Avatar string `json:"avatar_url"`
Active bool `json:"active"`
Admin bool `json:"admin"`
}
// Repo represents a version control repository.
type Repo struct {
ID int64 `json:"id"`
Owner string `json:"owner"`
Name string `json:"name"`
FullName string `json:"full_name"`
Avatar string `json:"avatar_url"`
Link string `json:"link_url"`
Clone string `json:"clone_url"`
Branch string `json:"default_branch"`
Timeout int64 `json:"timeout"`
IsPrivate bool `json:"private"`
IsTrusted bool `json:"trusted"`
AllowPull bool `json:"allow_pr"`
AllowPush bool `json:"allow_push"`
AllowDeploy bool `json:"allow_deploys"`
AllowTag bool `json:"allow_tags"`
}
// Build represents the process of compiling and testing a changeset,
// typically triggered by the remote system (ie GitHub).
type Build struct {
ID int64 `json:"id"`
Number int `json:"number"`
Event string `json:"event"`
Status string `json:"status"`
Enqueued int64 `json:"enqueued_at"`
Created int64 `json:"created_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Deploy string `json:"deploy_to"`
Commit string `json:"commit"`
Branch string `json:"branch"`
Ref string `json:"ref"`
Refspec string `json:"refspec"`
Remote string `json:"remote"`
Title string `json:"title"`
Message string `json:"message"`
Timestamp int64 `json:"timestamp"`
Author string `json:"author"`
Avatar string `json:"author_avatar"`
Email string `json:"author_email"`
Link string `json:"link_url"`
}
// Job represents a single job that is being executed as part
// of a Build.
type Job struct {
ID int64 `json:"id"`
Number int `json:"number"`
Status string `json:"status"`
ExitCode int `json:"exit_code"`
Enqueued int64 `json:"enqueued_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Environment map[string]string `json:"environment"`
}
// Secret represents a repository secret.
type Secret struct {
ID int64 `json:"id"`
Name string `json:"name"`
Value string `json:"value"`
Image []string `json:"image"`
Event []string `json:"event"`
}
// Activity represents a build activity. It combines the
// build details with summary Repository information.
type Activity struct {
Owner string `json:"owner"`
Name string `json:"name"`
FullName string `json:"full_name"`
Number int `json:"number"`
Event string `json:"event"`
Status string `json:"status"`
Enqueued int64 `json:"enqueued_at"`
Created int64 `json:"created_at"`
Started int64 `json:"started_at"`
Finished int64 `json:"finished_at"`
Commit string `json:"commit"`
Branch string `json:"branch"`
Ref string `json:"ref"`
Refspec string `json:"refspec"`
Remote string `json:"remote"`
Title string `json:"title"`
Message string `json:"message"`
Timestamp int64 `json:"timestamp"`
Author string `json:"author"`
Avatar string `json:"author_avatar"`
Email string `json:"author_email"`
Link string `json:"link_url"`
}
// Node represents a local or remote Docker daemon that is
// responsible for running jobs.
type Node struct {
ID int64 `json:"id"`
Addr string `json:"address"`
Arch string `json:"architecture"`
Cert string `json:"cert"`
Key string `json:"key"`
CA string `json:"ca"`
}
// Key represents an RSA public and private key assigned to a
// repository. It may be used to clone private repositories, or as
// a deployment key.
type Key struct {
Public string `json:"public"`
Private string `json:"private"`
}
// Netrc defines a default .netrc file that should be injected
// into the build environment. It will be used to authorize access
// to https resources, such as git+https clones.
type Netrc struct {
Machine string `json:"machine"`
Login string `json:"login"`
Password string `json:"password"`
}
// netrc is only used to allow compatibility with older plugins that rely on
// the JSON "user" attribute as a password value. In Drone 0.6 breaking
// changes will be introduced and this netrc struct and the Netrc UnmarshalJSON
// and MarshalJSON will be removed.
type netrc struct {
Machine string `json:"machine"`
Login string `json:"login"`
Password string `json:"password"`
PasswordOld string `json:"user"`
}
// UnmarshalJSON implements the json.Unmarshaler interface.
func (n *Netrc) UnmarshalJSON(b []byte) error {
x := &netrc{}
err := json.Unmarshal(b, x)
if err != nil {
return err
}
n.Machine = x.Machine
n.Login = x.Login
n.Password = x.Password
if x.PasswordOld != "" {
n.Password = x.PasswordOld
}
return nil
}
// MarshalJSON implements the json.Marshaler interface.
func (n Netrc) MarshalJSON() ([]byte, error) {
x := &netrc{
Machine: n.Machine,
Login: n.Login,
Password: n.Password,
PasswordOld: n.Password,
}
return json.Marshal(x)
}
// System represents the drone system.
type System struct {
Version string `json:"version"`
Link string `json:"link_url"`
Plugins []string `json:"plugins"`
Globals []string `json:"globals"`
Escalates []string `json:"privileged_plugins"`
}
// Workspace defines the build's workspace inside the
// container. This helps the plugin locate the source
// code directory.
type Workspace struct {
Root string `json:"root"`
Path string `json:"path"`
Netrc *Netrc `json:"netrc"`
Keys *Key `json:"keys"`
}
// Payload defines the full payload send to plugins.
type Payload struct {
Yaml string `json:"config"`
YamlEnc string `json:"secret"`
Repo *Repo `json:"repo"`
Build *Build `json:"build"`
BuildLast *Build `json:"build_last"`
Job *Job `json:"job"`
Netrc *Netrc `json:"netrc"`
Keys *Key `json:"keys"`
System *System `json:"system"`
Workspace *Workspace `json:"workspace"`
Vargs interface{} `json:"vargs"`
}

127
vendor/github.com/drone/drone-go/drone/types_json.go generated vendored
View File

@ -1,127 +0,0 @@
package drone
import (
"encoding/json"
"strconv"
)
// StringSlice representes a string or an array of strings.
type StringSlice struct {
parts []string
}
// UnmarshalJSON unmarshals bytes into a StringSlice.
func (e *StringSlice) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
p := make([]string, 0, 1)
if err := json.Unmarshal(b, &p); err != nil {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
p = append(p, s)
}
e.parts = p
return nil
}
// Len returns the number of strings in a StringSlice.
func (e *StringSlice) Len() int {
if e == nil {
return 0
}
return len(e.parts)
}
// Slice returns the slice of strings in a StringSlice.
func (e *StringSlice) Slice() []string {
if e == nil {
return nil
}
return e.parts
}
// NewStringSlice takes a slice of strings and returns a StringSlice.
func NewStringSlice(parts []string) StringSlice {
return StringSlice{parts}
}
// StringMap representes a string or a map of strings.
type StringMap struct {
parts map[string]string
}
// UnmarshalJSON unmarshals bytes into a StringMap.
func (e *StringMap) UnmarshalJSON(b []byte) error {
if len(b) == 0 {
return nil
}
p := map[string]string{}
if err := json.Unmarshal(b, &p); err != nil {
var s string
if err := json.Unmarshal(b, &s); err != nil {
return err
}
p[""] = s
}
e.parts = p
return nil
}
// Len returns the number of elements in the StringMap.
func (e *StringMap) Len() int {
if e == nil {
return 0
}
return len(e.parts)
}
// String satisfies the fmt.Stringer interface.
func (e *StringMap) String() (str string) {
if e == nil {
return
}
for _, val := range e.parts {
return val // returns the first string value
}
return
}
// Map returns StringMap as a map of string to string.
func (e *StringMap) Map() map[string]string {
if e == nil {
return nil
}
return e.parts
}
// NewStringMap takes a map of string to string and returns a StringMap.
func NewStringMap(parts map[string]string) StringMap {
return StringMap{parts}
}
// StringInt representes a string or an integer value.
type StringInt struct {
value string
}
// UnmarshalJSON unmarshals bytes into a StringInt.
func (e *StringInt) UnmarshalJSON(b []byte) error {
var num int
err := json.Unmarshal(b, &num)
if err == nil {
e.value = strconv.Itoa(num)
return nil
}
return json.Unmarshal(b, &e.value)
}
func (e StringInt) String() string {
return e.value
}

134
vendor/github.com/drone/drone-go/plugin/plugin.go generated vendored
View File

@ -1,134 +0,0 @@
package plugin
import (
"bytes"
"encoding/json"
"fmt"
"io"
"os"
)
// Standard Input
var Stdin *ParamSet
func init() {
// defaults to stdin
Stdin = NewParamSet(os.Stdin)
// check for params after the double dash
// in the command string
for i, argv := range os.Args {
if argv == "--" {
arg := os.Args[i+1]
buf := bytes.NewBufferString(arg)
Stdin = NewParamSet(buf)
break
}
}
}
// this init function is deprecated, but I'm keeping it
// around just in case it proves useful in the future.
func deprecated_init() {
// if piping from stdin we can just exit
// and use the default Stdin value
stat, _ := os.Stdin.Stat()
if (stat.Mode() & os.ModeCharDevice) == 0 {
return
}
// check for params after the double dash
// in the command string
for i, argv := range os.Args {
if argv == "--" {
arg := os.Args[i+1]
buf := bytes.NewBufferString(arg)
Stdin = NewParamSet(buf)
return
}
}
// else use the first variable in the list
if len(os.Args) > 1 {
buf := bytes.NewBufferString(os.Args[1])
Stdin = NewParamSet(buf)
}
}
// ParamSet describes a parameter set.
type ParamSet struct {
reader io.Reader
params map[string]interface{}
}
// NewParamSet takes a io.Reader and returns a ParamSet.
func NewParamSet(reader io.Reader) *ParamSet {
var p = new(ParamSet)
p.reader = reader
p.params = map[string]interface{}{}
return p
}
// Param defines a parameter with the specified name.
func (p ParamSet) Param(name string, value interface{}) {
p.params[name] = value
}
// Parse parses parameter definitions from the map.
func (p ParamSet) Parse() error {
raw := map[string]json.RawMessage{}
err := json.NewDecoder(p.reader).Decode(&raw)
if err != nil {
return err
}
for key, val := range p.params {
data, ok := raw[key]
if !ok {
continue
}
err := json.Unmarshal(data, val)
if err != nil {
return fmt.Errorf("Unable to unarmshal %s. %s", key, err)
}
}
return nil
}
// Unmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func (p ParamSet) Unmarshal(v interface{}) error {
return json.NewDecoder(p.reader).Decode(v)
}
// Param defines a parameter with the specified name.
func Param(name string, value interface{}) {
Stdin.Param(name, value)
}
// Parse parses parameter definitions from the map.
func Parse() error {
return Stdin.Parse()
}
// Unmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func Unmarshal(v interface{}) error {
return Stdin.Unmarshal(v)
}
// MustUnmarshal parses the JSON payload from the command
// arguments and unmarshal into a value pointed to by v.
func MustUnmarshal(v interface{}) error {
return Stdin.Unmarshal(v)
}
// MustParse parses parameter definitions from the map
// and panics if there is a parsing error.
func MustParse() {
err := Parse()
if err != nil {
panic(err)
}
}

12
vendor/github.com/go-ini/ini/Makefile generated vendored Normal file
View File

@ -0,0 +1,12 @@
.PHONY: build test bench vet
build: vet bench
test:
go test -v -cover -race
bench:
go test -v -cover -race -test.bench=. -test.benchmem
vet:
go vet

121
vendor/github.com/go-ini/ini/README.md generated vendored
View File

@ -1,4 +1,4 @@
ini [![Build Status](https://drone.io/github.com/go-ini/ini/status.png)](https://drone.io/github.com/go-ini/ini/latest) [![](http://gocover.io/_badge/github.com/go-ini/ini)](http://gocover.io/github.com/go-ini/ini)
INI [![Build Status](https://travis-ci.org/go-ini/ini.svg?branch=master)](https://travis-ci.org/go-ini/ini)
===
![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200)
@ -22,13 +22,29 @@ Package ini provides INI file read and write functionality in Go.
## Installation
To use a tagged revision:
go get gopkg.in/ini.v1
To use with latest changes:
go get github.com/go-ini/ini
Please add `-u` flag to update in the future.
### Testing
If you want to test on your machine, please apply `-t` flag:
go get -t gopkg.in/ini.v1
Please add `-u` flag to update in the future.
## Getting Started
### Loading from data sources
A **Data Source** is either raw data in type `[]byte` or a file name with type `string` and you can load **as many as** data sources you want. Passing other types will simply return an error.
A **Data Source** is either raw data in type `[]byte` or a file name with type `string` and you can load **as many data sources as you want**. Passing other types will simply return an error.
```go
cfg, err := ini.Load([]byte("raw data"), "filename")
@ -40,12 +56,37 @@ Or start with an empty object:
cfg := ini.Empty()
```
When you cannot decide how many data sources to load at the beginning, you still able to **Append()** them later.
When you cannot decide how many data sources to load at the beginning, you will still be able to **Append()** them later.
```go
err := cfg.Append("other file", []byte("other raw data"))
```
If you have a list of files with possibilities that some of them may not available at the time, and you don't know exactly which ones, you can use `LooseLoad` to ignore nonexistent files without returning error.
```go
cfg, err := ini.LooseLoad("filename", "filename_404")
```
The cool thing is, whenever the file is available to load while you're calling `Reload` method, it will be counted as usual.
When you do not care about cases of section and key names, you can use `InsensitiveLoad` to force all names to be lowercased while parsing.
```go
cfg, err := ini.InsensitiveLoad("filename")
//...
// sec1 and sec2 are the exactly same section object
sec1, err := cfg.GetSection("Section")
sec2, err := cfg.GetSection("SecTIOn")
// key1 and key2 are the exactly same key object
key1, err := cfg.GetKey("Key")
key2, err := cfg.GetKey("KeY")
```
If you want to give more advanced load options, use `LoadSources` and take a look at [`LoadOptions`](https://github.com/go-ini/ini/blob/v1.16.1/ini.go#L156).
### Working with sections
To get a section, you would need to:
@ -95,6 +136,12 @@ Same rule applies to key operations:
key := cfg.Section("").Key("key name")
```
To check if a key exists:
```go
yes := cfg.Section("").HasKey("key name")
```
To create a new key:
```go
@ -111,7 +158,7 @@ names := cfg.Section("").KeyStrings()
To get a clone hash of keys and corresponding values:
```go
hash := cfg.GetSection("").KeysHash()
hash := cfg.Section("").KeysHash()
```
### Working with values
@ -133,12 +180,24 @@ val := cfg.Section("").Key("key name").Validate(func(in string) string {
})
```
If you do not want any auto-transformation (such as recursive read) for the values, you can get raw value directly (this way you get much better performance):
```go
val := cfg.Section("").Key("key name").Value()
```
To check if raw value exists:
```go
yes := cfg.Section("").HasValue("test value")
```
To get value with types:
```go
// For boolean values:
// true when value is: 1, t, T, TRUE, true, True, YES, yes, Yes, ON, on, On
// false when value is: 0, f, F, FALSE, false, False, NO, no, No, OFF, off, Off
// true when value is: 1, t, T, TRUE, true, True, YES, yes, Yes, y, ON, on, On
// false when value is: 0, f, F, FALSE, false, False, NO, no, No, n, OFF, off, Off
v, err = cfg.Section("").Key("BOOL").Bool()
v, err = cfg.Section("").Key("FLOAT64").Float64()
v, err = cfg.Section("").Key("INT").Int()
@ -212,6 +271,16 @@ cfg.Section("advance").Key("two_lines").String() // how about continuation lines
cfg.Section("advance").Key("lots_of_lines").String() // 1 2 3 4
```
Well, I hate continuation lines, how do I disable that?
```go
cfg, err := ini.LoadSources(ini.LoadOptions{
IgnoreContinuation: true,
}, "filename")
```
Holy crap!
Note that single quotes around values will be stripped:
```ini
@ -250,9 +319,13 @@ vals = cfg.Section("").Key("TIME").RangeTimeFormat(time.RFC3339, time.Now(), min
vals = cfg.Section("").Key("TIME").RangeTime(time.Now(), minTime, maxTime) // RFC3339
```
To auto-split value into slice:
##### Auto-split values into a slice
To use zero value of type for invalid inputs:
```go
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
// Input: how, 2.2, are, you -> [0.0 2.2 0.0 0.0]
vals = cfg.Section("").Key("STRINGS").Strings(",")
vals = cfg.Section("").Key("FLOAT64S").Float64s(",")
vals = cfg.Section("").Key("INTS").Ints(",")
@ -262,6 +335,32 @@ vals = cfg.Section("").Key("UINT64S").Uint64s(",")
vals = cfg.Section("").Key("TIMES").Times(",")
```
To exclude invalid values out of result slice:
```go
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
// Input: how, 2.2, are, you -> [2.2]
vals = cfg.Section("").Key("FLOAT64S").ValidFloat64s(",")
vals = cfg.Section("").Key("INTS").ValidInts(",")
vals = cfg.Section("").Key("INT64S").ValidInt64s(",")
vals = cfg.Section("").Key("UINTS").ValidUints(",")
vals = cfg.Section("").Key("UINT64S").ValidUint64s(",")
vals = cfg.Section("").Key("TIMES").ValidTimes(",")
```
Or to return nothing but error when have invalid inputs:
```go
// Input: 1.1, 2.2, 3.3, 4.4 -> [1.1 2.2 3.3 4.4]
// Input: how, 2.2, are, you -> error
vals = cfg.Section("").Key("FLOAT64S").StrictFloat64s(",")
vals = cfg.Section("").Key("INTS").StrictInts(",")
vals = cfg.Section("").Key("INT64S").StrictInt64s(",")
vals = cfg.Section("").Key("UINTS").StrictUints(",")
vals = cfg.Section("").Key("UINT64S").StrictUint64s(",")
vals = cfg.Section("").Key("TIMES").StrictTimes(",")
```
### Save your configuration
Finally, it's time to save your configuration to somewhere.
@ -323,6 +422,12 @@ CLONE_URL = https://%(IMPORT_PATH)s
cfg.Section("package.sub").Key("CLONE_URL").String() // https://gopkg.in/ini.v1
```
#### Retrieve parent keys available to a child section
```go
cfg.Section("package.sub").ParentKeys() // ["CLONE_URL"]
```
### Auto-increment Key Names
If key name is `-` in data source, then it would be seen as special syntax for auto-increment key name start from 1, and every section is independent on counter.
@ -464,7 +569,7 @@ type Info struct {
}
func main() {
err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("packag_name=ini"))
err = ini.MapToWithMapper(&Info{}, ini.TitleUnderscore, []byte("package_name=ini"))
// ...
cfg, err := ini.Load([]byte("PACKAGE_NAME=ini"))

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