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first iteration using native s3 library
This commit is contained in:
Nathan LaFreniere
parent
e1a8ff1282
commit
eb8b4e32bd
27
DOCS.md
27
DOCS.md
@ -8,8 +8,6 @@ Use the S3 sync plugin to synchronize files and folders with an Amazon S3 bucket
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* `source` - location of folder to sync
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* `target` - target folder in your S3 bucket
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* `delete` - deletes files in the target not found in the source
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* `include` - don't exclude files that match the specified pattern
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* `exclude` - exclude files that match the specified pattern
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* `content_type` - override default mime-tpyes to use this value
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The following is a sample S3 configuration in your .drone.yml file:
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@ -26,3 +24,28 @@ publish:
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target: /target/location
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delete: true
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```
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Both `acl` and `content_type` can be passed as a string value to apply to all files, or as a map to apply to a subset of files.
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For example:
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```yaml
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publish:
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s3_sync:
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acl:
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"public/*": public-read
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"private/*": private
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content_type:
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".svg": image/svg+xml
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region: "us-east-1"
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bucket: "my-bucket.s3-website-us-east-1.amazonaws.com"
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access_key: "970d28f4dd477bc184fbd10b376de753"
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secret_key: "9c5785d3ece6a9cdefa42eb99b58986f9095ff1c"
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source: folder/to/archive
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target: /target/location
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delete: true
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```
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In the case of `acl` the key of the map is a glob as matched by [filepath.Match](https://golang.org/pkg/path/filepath/#Match). If there are no matches in your settings for a given file, the default is `"private"`.
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The `content_type` field the key is an extension including the leading dot `.`. If you want to set a content type for files with no extension, set the key to the empty string `""`. If there are no matches for the `content_type` of any file, one will automatically be determined for you.
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323
main.go
323
main.go
@ -1,161 +1,244 @@
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package main
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import (
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"encoding/json"
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"fmt"
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"mime"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"github.com/drone/drone-plugin-go/plugin"
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"github.com/drone/drone-go/plugin"
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"launchpad.net/goamz/aws"
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"launchpad.net/goamz/s3"
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)
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type S3 struct {
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Key string `json:"access_key"`
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Secret string `json:"secret_key"`
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Bucket string `json:"bucket"`
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type AWS struct {
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client *s3.S3
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bucket *s3.Bucket
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remote []string
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local []string
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vargs PluginArgs
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}
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// us-east-1
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// us-west-1
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// us-west-2
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// eu-west-1
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// ap-southeast-1
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// ap-southeast-2
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// ap-northeast-1
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// sa-east-1
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Region string `json:"region"`
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type StringMap struct {
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parts map[string]string
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}
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// Indicates the files ACL, which should be one
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// of the following:
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// private
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// public-read
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// public-read-write
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// authenticated-read
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// bucket-owner-read
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// bucket-owner-full-control
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Access string `json:"acl"`
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func (e *StringMap) UnmarshalJSON(b []byte) error {
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if len(b) == 0 {
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return nil
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}
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// Copies the files from the specified directory.
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// Regexp matching will apply to match multiple
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// files
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//
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// Examples:
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// /path/to/file
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// /path/to/*.txt
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// /path/to/*/*.txt
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// /path/to/**
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Source string `json:"source"`
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Target string `json:"target"`
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p := map[string]string{}
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if err := json.Unmarshal(b, &p); err != nil {
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var s string
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if err := json.Unmarshal(b, &s); err != nil {
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return err
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}
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p["_string_"] = s
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}
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// Include or exclude all files or objects from the command
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// that matches the specified pattern.
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Include string `json:"include"`
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Exclude string `json:"exclude"`
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e.parts = p
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return nil
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}
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// Files that exist in the destination but not in the source
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// are deleted during sync.
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Delete bool `json:"delete"`
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func (e *StringMap) IsEmpty() bool {
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if e == nil || len(e.parts) == 0 {
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return true
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}
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// Specify an explicit content type for this operation. This
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// value overrides any guessed mime types.
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ContentType string `json:"content_type"`
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return false
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}
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func (e *StringMap) IsString() bool {
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if e.IsEmpty() || len(e.parts) != 1 {
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return false
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}
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_, ok := e.parts["_string_"]
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return ok
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}
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func (e *StringMap) String() string {
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if e.IsEmpty() || !e.IsString() {
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return ""
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}
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return e.parts["_string_"]
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}
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func (e *StringMap) Map() map[string]string {
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if e.IsEmpty() || e.IsString() {
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return map[string]string{}
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}
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return e.parts
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}
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type PluginArgs struct {
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Key string `json:"access_key"`
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Secret string `json:"secret_key"`
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Bucket string `json:"bucket"`
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Region string `json:"region"`
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Source string `json:"source"`
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Target string `json:"target"`
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Delete bool `json:"delete"`
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Access StringMap `json:"acl"`
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ContentType StringMap `json:"content_type"`
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}
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func NewClient(vargs PluginArgs) AWS {
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auth := aws.Auth{AccessKey: vargs.Key, SecretKey: vargs.Secret}
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region := aws.Regions[vargs.Region]
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client := s3.New(auth, region)
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bucket := client.Bucket(vargs.Bucket)
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remote := make([]string, 1, 1)
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local := make([]string, 1, 1)
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aws := AWS{client, bucket, remote, local, vargs}
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return aws
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}
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func (aws *AWS) visit(path string, info os.FileInfo, err error) error {
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if path == "." {
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return nil
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}
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if info.IsDir() {
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return nil
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}
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aws.local = append(aws.local, path)
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file, err := os.Open(path)
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if err != nil {
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return err
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}
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defer file.Close()
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var access s3.ACL
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if aws.vargs.Access.IsString() {
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access = s3.ACL(aws.vargs.Access.String())
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} else if !aws.vargs.Access.IsEmpty() {
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accessMap := aws.vargs.Access.Map()
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for pattern := range accessMap {
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if match, _ := filepath.Match(pattern, path); match == true {
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access = s3.ACL(accessMap[pattern])
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break
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}
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}
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}
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if access == "" {
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access = s3.ACL("private")
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}
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fileExt := filepath.Ext(path)
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var contentType string
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if aws.vargs.ContentType.IsString() {
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contentType = aws.vargs.ContentType.String()
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} else if !aws.vargs.ContentType.IsEmpty() {
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contentMap := aws.vargs.ContentType.Map()
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for patternExt := range contentMap {
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if patternExt == fileExt {
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contentType = contentMap[patternExt]
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break
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}
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}
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}
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if contentType == "" {
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contentType = mime.TypeByExtension(fileExt)
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}
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fmt.Printf("Uploading %s with Content-Type %s and permissions %s\n", path, contentType, access)
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err = aws.bucket.PutReader(path, file, info.Size(), contentType, access)
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if err != nil {
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return err
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}
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return nil
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}
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func (aws *AWS) List(path string) (*s3.ListResp, error) {
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return aws.bucket.List(path, "", "", 10000)
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}
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func (aws *AWS) Cleanup() error {
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for _, remote := range aws.remote {
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found := false
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for _, local := range aws.local {
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if local == remote {
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found = true
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break
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}
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}
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if !found {
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fmt.Println("Removing remote file ", remote)
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err := aws.bucket.Del(remote)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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func main() {
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workspace := plugin.Workspace{}
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vargs := S3{}
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vargs := PluginArgs{}
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plugin.Param("workspace", &workspace)
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plugin.Param("vargs", &vargs)
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plugin.MustParse()
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if err := plugin.Parse(); err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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// skip if AWS key or SECRET are empty. A good example for this would
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// be forks building a project. S3 might be configured in the source
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// repo, but not in the fork
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if len(vargs.Key) == 0 || len(vargs.Secret) == 0 {
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if len(vargs.Key) == 0 || len(vargs.Secret) == 0 || len(vargs.Bucket) == 0 {
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return
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}
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// make sure a default region is set
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if len(vargs.Region) == 0 {
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vargs.Region = "us-east-1"
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}
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// make sure a default access is set
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// let's be conservative and assume private
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if len(vargs.Access) == 0 {
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vargs.Access = "private"
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}
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// make sure a default source is set
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if len(vargs.Source) == 0 {
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vargs.Source = "."
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}
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// if the target starts with a "/" we need
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// to remove it, otherwise we might adding
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// a 3rd slash to s3://
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if strings.HasPrefix(vargs.Target, "/") {
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vargs.Target = vargs.Target[1:]
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}
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vargs.Target = fmt.Sprintf("s3://%s/%s", vargs.Bucket, vargs.Target)
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cmd := command(vargs)
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cmd.Env = os.Environ()
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cmd.Env = append(cmd.Env, "AWS_ACCESS_KEY_ID="+vargs.Key)
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cmd.Env = append(cmd.Env, "AWS_SECRET_ACCESS_KEY="+vargs.Secret)
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cmd.Dir = workspace.Path
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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trace(cmd)
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if vargs.Target != "" && !strings.HasSuffix(vargs.Target, "/") {
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vargs.Target = fmt.Sprintf("%s/", vargs.Target)
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}
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// run the command and exit if failed.
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err := cmd.Run()
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client := NewClient(vargs)
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resp, err := client.List(vargs.Target)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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// command is a helper function that returns the command
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// and arguments to upload to aws from the command line.
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func command(s S3) *exec.Cmd {
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// command line args
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args := []string{
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"s3",
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"sync",
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s.Source,
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s.Target,
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"--acl",
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s.Access,
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"--region",
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s.Region,
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}
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// append delete flag if specified
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if s.Delete {
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args = append(args, "--delete")
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}
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// appends exclude flag if specified
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if len(s.Exclude) != 0 {
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args = append(args, "--exclude")
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args = append(args, s.Exclude)
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}
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// append include flag if specified
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if len(s.Include) != 0 {
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args = append(args, "--include")
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args = append(args, s.Include)
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}
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// appends content-type if specified
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if len(s.ContentType) != 0 {
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args = append(args, "--content-type")
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args = append(args, s.ContentType)
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}
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return exec.Command("aws", args...)
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}
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// trace writes each command to standard error (preceded by a ‘$ ’) before it
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// is executed. Used for debugging your build.
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func trace(cmd *exec.Cmd) {
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fmt.Println("$", strings.Join(cmd.Args, " "))
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for _, item := range resp.Contents {
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client.remote = append(client.remote, item.Key)
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}
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err = filepath.Walk(vargs.Source, client.visit)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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if vargs.Delete {
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err = client.Cleanup()
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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}
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