refactor: add more linters and fix findings (#129)

.drone.star

@@ -31,7 +31,7 @@ def test(ctx):
         "steps": [
             {
                 "name": "deps",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "commands": [
                     "make deps",
                 ],
@@ -44,7 +44,7 @@ def test(ctx):
             },
             {
                 "name": "generate",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "commands": [
                     "make generate",
                 ],
@@ -57,7 +57,7 @@ def test(ctx):
             },
             {
                 "name": "lint",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "commands": [
                     "make lint",
                 ],
@@ -70,7 +70,7 @@ def test(ctx):
             },
             {
                 "name": "test",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "commands": [
                     "make test",
                 ],
@@ -109,7 +109,7 @@ def build(ctx):
         "steps": [
             {
                 "name": "generate",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "pull": "always",
                 "commands": [
                     "make generate",
@@ -123,7 +123,7 @@ def build(ctx):
             },
             {
                 "name": "build",
-                "image": "techknowlogick/xgo:go-1.19.x",
+                "image": "techknowlogick/xgo:go-1.20.x",
                 "pull": "always",
                 "commands": [
                     "ln -s /drone/src /source",
@@ -138,7 +138,7 @@ def build(ctx):
             },
             {
                 "name": "executable",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "pull": "always",
                 "commands": [
                     "$(find dist/ -executable -type f -iname drone-ansible-linux-amd64) --help",
@@ -205,7 +205,7 @@ def docker(ctx, arch):
         "steps": [
             {
                 "name": "generate",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "pull": "always",
                 "commands": [
                     "make generate",
@@ -219,7 +219,7 @@ def docker(ctx, arch):
             },
             {
                 "name": "build",
-                "image": "golang:1.19",
+                "image": "golang:1.20",
                 "pull": "always",
                 "commands": [
                     "make build",

.golangci.yml

@@ -1,25 +1,94 @@
+---
 linters:
-  enable:
-    - gosimple
-    - deadcode
-    - typecheck
-    - govet
-    - errcheck
-    - staticcheck
-    - unused
-    - structcheck
-    - varcheck
-    # - dupl
-    - gofmt
-    - misspell
-    - gocritic
-    - bidichk
-    - ineffassign
-    - revive
-    - gofumpt
-    - depguard
   enable-all: false
   disable-all: true
+  enable:
+    - errcheck
+    - gosimple
+    - govet
+    - ineffassign
+    - staticcheck
+    - typecheck
+    - unused
+    - asasalint
+    - asciicheck
+    - bidichk
+    - bodyclose
+    - containedctx
+    - contextcheck
+    - decorder
+    - depguard
+    - dogsled
+    - dupl
+    - dupword
+    - durationcheck
+    - errchkjson
+    - errname
+    - errorlint
+    - execinquery
+    - exhaustive
+    - exportloopref
+    - forcetypeassert
+    - ginkgolinter
+    - gocheckcompilerdirectives
+    - gochecknoglobals
+    - gochecknoinits
+    - gocognit
+    - goconst
+    - gocritic
+    - gocyclo
+    - godot
+    - godox
+    - goerr113
+    - gofmt
+    - gofumpt
+    - goheader
+    - goimports
+    - gomnd
+    - gomoddirectives
+    - gomodguard
+    - goprintffuncname
+    - gosec
+    - grouper
+    - importas
+    - interfacebloat
+    - ireturn
+    - lll
+    - loggercheck
+    - maintidx
+    - makezero
+    - misspell
+    - musttag
+    - nakedret
+    - nestif
+    - nilerr
+    - nilnil
+    - nlreturn
+    - noctx
+    - nolintlint
+    - nonamedreturns
+    - nosprintfhostport
+    - prealloc
+    - predeclared
+    - promlinter
+    - reassign
+    - revive
+    - stylecheck
+    - tagliatelle
+    - tenv
+    - testableexamples
+    - thelper
+    - tparallel
+    - unconvert
+    - unparam
+    - usestdlibvars
+    - whitespace
+    - wsl
+    ## not working in golangci yet
+    # - rowserrcheck
+    # - sqlclosecheck
+    # - structcheck
+    # - wastedassign
   fast: false
 
 run:
@@ -28,4 +97,4 @@ run:
 linters-settings:
   gofumpt:
     extra-rules: true
-    lang-version: "1.19"
+    lang-version: "1.20"

Makefile

@@ -20,7 +20,7 @@ XGO_PACKAGE ?= src.techknowlogick.com/xgo@latest
 
 GENERATE ?= $(IMPORT)/pkg/templates
 XGO_PACKAGE ?= src.techknowlogick.com/xgo@latest
-XGO_VERSION := go-1.19.x
+XGO_VERSION := go-1.20.x
 XGO_TARGETS ?= linux/amd64,linux/arm64,darwin/amd64,darwin/arm64,windows/amd64
 
 TAGS ?= netgo

cmd/drone-ansible/config.go

@@ -120,7 +120,7 @@ func settingsFlags(settings *plugin.Settings) []cli.Flag {
 			Name:        "forks",
 			Usage:       "specify number of parallel processes to use",
 			EnvVars:     []string{"PLUGIN_FORKS"},
-			Value:       5,
+			Value:       plugin.AnsibleForksDefault,
 			Destination: &settings.Forks,
 		},
 		&cli.StringFlag{

cmd/drone-ansible/main.go

@@ -12,6 +12,7 @@ import (
 	"github.com/drone-plugins/drone-plugin-lib/urfave"
 )
 
+//nolint:gochecknoglobals
 var (
 	BuildVersion = "devel"
 	BuildDate    = "00000000"
@@ -52,19 +53,11 @@ func run(settings *plugin.Settings) cli.ActionFunc {
 		)
 
 		if err := plugin.Validate(); err != nil {
-			if e, ok := err.(errors.ExitCoder); ok {
+			return fmt.Errorf("validation failed: %w", err)
-				return e
-			}
-
-			return errors.ExitMessagef("validation failed: %w", err)
 		}
 
 		if err := plugin.Execute(); err != nil {
-			if e, ok := err.(errors.ExitCoder); ok {
+			return fmt.Errorf("execution failed: %w", err)
-				return e
-			}
-
-			return errors.ExitMessagef("execution failed: %w", err)
 		}
 
 		return nil

go.mod

@@ -1,18 +1,18 @@
 module github.com/owncloud-ci/drone-ansible
 
-go 1.19
+go 1.20
 
 require (
 	github.com/drone-plugins/drone-plugin-lib v0.4.0
 	github.com/joho/godotenv v1.5.1
 	github.com/pkg/errors v0.9.1
 	github.com/urfave/cli/v2 v2.24.3
+	golang.org/x/sys v0.5.0
 )
 
 require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
-	golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f // indirect
 )

go.sum

@@ -2,6 +2,7 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/drone-plugins/drone-plugin-lib v0.4.0 h1:qywEYGhquUuid6zNLmKia8CWY1TUa8jPQQ/G9ozfAmc=
@@ -20,11 +21,13 @@ github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
-github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
+github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
-github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
+github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
-github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 github.com/urfave/cli/v2 v2.24.3 h1:7Q1w8VN8yE0MJEHP06bv89PjYsN4IHWED2s1v/Zlfm0=
 github.com/urfave/cli/v2 v2.24.3/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
@@ -35,11 +38,13 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f h1:rlezHXNlxYWvBCzNses9Dlc7nGFaNMJeqLolcmQSSZY=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
-golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20190624222133-a101b041ded4/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=

plugin/ansible.go

@@ -3,21 +3,30 @@ package plugin
 import (
 	"fmt"
 	"os"
-	"os/exec"
 	"path/filepath"
 	"strconv"
 	"strings"
 
 	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
+	"golang.org/x/sys/execabs"
 )
 
-var (
+const (
+	AnsibleForksDefault = 5
+
 	ansibleFolder = "/etc/ansible"
 	ansibleConfig = "/etc/ansible/ansible.cfg"
+
+	pipBin             = "/usr/bin/pip"
+	ansibleBin         = "/usr/bin/ansible"
+	ansibleGalaxyBin   = "/usr/bin/ansible-galaxy"
+	ansiblePlaybookBin = "/usr/bin/ansible-playbook"
+
+	strictFilePerm = 0o600
 )
 
-var ansibleContent = `
+const ansibleContent = `
 [defaults]
 host_key_checking = False
 `
@@ -27,7 +36,7 @@ func (p *Plugin) ansibleConfig() error {
 		return errors.Wrap(err, "failed to create ansible directory")
 	}
 
-	if err := os.WriteFile(ansibleConfig, []byte(ansibleContent), 0o600); err != nil {
+	if err := os.WriteFile(ansibleConfig, []byte(ansibleContent), strictFilePerm); err != nil {
 		return errors.Wrap(err, "failed to create ansible config")
 	}
 
@@ -49,6 +58,7 @@ func (p *Plugin) privateKey() error {
 	}
 
 	p.settings.PrivateKeyFile = tmpfile.Name()
+
 	return nil
 }
 
@@ -67,6 +77,7 @@ func (p *Plugin) vaultPass() error {
 	}
 
 	p.settings.VaultPasswordFile = tmpfile.Name()
+
 	return nil
 }
 
@@ -77,6 +88,7 @@ func (p *Plugin) playbooks() error {
 		files, err := filepath.Glob(p)
 		if err != nil {
 			playbooks = append(playbooks, p)
+
 			continue
 		}
 
@@ -88,21 +100,22 @@ func (p *Plugin) playbooks() error {
 	}
 
 	p.settings.Playbooks = *cli.NewStringSlice(playbooks...)
+
 	return nil
 }
 
-func (p *Plugin) versionCommand() *exec.Cmd {
+func (p *Plugin) versionCommand() *execabs.Cmd {
 	args := []string{
 		"--version",
 	}
 
-	return exec.Command(
+	return execabs.Command(
-		"ansible",
+		ansibleBin,
 		args...,
 	)
 }
 
-func (p *Plugin) requirementsCommand() *exec.Cmd {
+func (p *Plugin) requirementsCommand() *execabs.Cmd {
 	args := []string{
 		"install",
 		"--upgrade",
@@ -110,13 +123,13 @@ func (p *Plugin) requirementsCommand() *exec.Cmd {
 		p.settings.Requirements,
 	}
 
-	return exec.Command(
+	return execabs.Command(
-		"pip",
+		pipBin,
 		args...,
 	)
 }
 
-func (p *Plugin) galaxyCommand() *exec.Cmd {
+func (p *Plugin) galaxyCommand() *execabs.Cmd {
 	args := []string{
 		"install",
 		"--force",
@@ -128,13 +141,13 @@ func (p *Plugin) galaxyCommand() *exec.Cmd {
 		args = append(args, fmt.Sprintf("-%s", strings.Repeat("v", p.settings.Verbose)))
 	}
 
-	return exec.Command(
+	return execabs.Command(
-		"ansible-galaxy",
+		ansibleGalaxyBin,
 		args...,
 	)
 }
 
-func (p *Plugin) ansibleCommand(inventory string) *exec.Cmd {
+func (p *Plugin) ansibleCommand(inventory string) *execabs.Cmd {
 	args := []string{
 		"--inventory",
 		inventory,
@@ -160,8 +173,8 @@ func (p *Plugin) ansibleCommand(inventory string) *exec.Cmd {
 		args = append(args, "--list-hosts")
 		args = append(args, p.settings.Playbooks.Value()...)
 
-		return exec.Command(
+		return execabs.Command(
-			"ansible-playbook",
+			ansiblePlaybookBin,
 			args...,
 		)
 	}
@@ -170,8 +183,8 @@ func (p *Plugin) ansibleCommand(inventory string) *exec.Cmd {
 		args = append(args, "--syntax-check")
 		args = append(args, p.settings.Playbooks.Value()...)
 
-		return exec.Command(
+		return execabs.Command(
-			"ansible-playbook",
+			ansiblePlaybookBin,
 			args...,
 		)
 	}
@@ -192,7 +205,7 @@ func (p *Plugin) ansibleCommand(inventory string) *exec.Cmd {
 		args = append(args, "--force-handlers")
 	}
 
-	if p.settings.Forks != 5 {
+	if p.settings.Forks != AnsibleForksDefault {
 		args = append(args, "--forks", strconv.Itoa(p.settings.Forks))
 	}
 
@@ -270,12 +283,12 @@ func (p *Plugin) ansibleCommand(inventory string) *exec.Cmd {
 
 	args = append(args, p.settings.Playbooks.Value()...)
 
-	return exec.Command(
+	return execabs.Command(
-		"ansible-playbook",
+		ansiblePlaybookBin,
 		args...,
 	)
 }
 
-func trace(cmd *exec.Cmd) {
+func trace(cmd *execabs.Cmd) {
 	fmt.Println("$", strings.Join(cmd.Args, " "))
 }

plugin/impl.go

@@ -2,10 +2,10 @@ package plugin
 
 import (
 	"os"
-	"os/exec"
 
 	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
+	"golang.org/x/sys/execabs"
 )
 
 // Settings for the Plugin.
@@ -86,7 +86,7 @@ func (p *Plugin) Execute() error {
 		defer os.Remove(p.settings.VaultPasswordFile)
 	}
 
-	commands := []*exec.Cmd{
+	commands := []*execabs.Cmd{
 		p.versionCommand(),
 	}
 

plugin/plugin.go

@@ -12,7 +12,7 @@ type Plugin struct {
 }
 
 // New initializes a plugin from the given Settings, Pipeline, and Network.
-func New(settings Settings, pipeline drone.Pipeline, network drone.Network) drone.Plugin {
+func New(settings Settings, pipeline drone.Pipeline, network drone.Network) *Plugin {
 	return &Plugin{
 		settings: settings,
 		pipeline: pipeline,