fix: correct stickler-ci errors and remove unused code

plugins/app-json/appjson.go

@@ -13,7 +13,7 @@ import (
 	shellquote "github.com/kballard/go-shellquote"
 )
 
-type AppJson struct {
+type AppJSON struct {
 	Scripts struct {
 		Dokku struct {
 			Predeploy  string `json:"predeploy"`
@@ -74,19 +74,19 @@ func constructScript(command string, shell string, isHerokuishImage bool, hasEnt
 
 // getPhaseScript extracts app.json from app image and returns the appropriate json key/value
 func getPhaseScript(appName string, image string, phase string) (string, error) {
-	appJsonFile, err := ioutil.TempFile(os.TempDir(), fmt.Sprintf("dokku-%s-%s", common.MustGetEnv("DOKKU_PID"), "getPhaseScript"))
+	appJSONFile, err := ioutil.TempFile(os.TempDir(), fmt.Sprintf("dokku-%s-%s", common.MustGetEnv("DOKKU_PID"), "getPhaseScript"))
 	if err != nil {
 		return "", fmt.Errorf("Cannot create temporary file: %v", err)
 	}
 
-	defer os.Remove(appJsonFile.Name())
+	defer os.Remove(appJSONFile.Name())
 
-	common.CopyFromImage(appName, image, "app.json", appJsonFile.Name())
-	if !common.FileExists(appJsonFile.Name()) {
+	common.CopyFromImage(appName, image, "app.json", appJSONFile.Name())
+	if !common.FileExists(appJSONFile.Name()) {
 		return "", nil
 	}
 
-	b, err := ioutil.ReadFile(appJsonFile.Name())
+	b, err := ioutil.ReadFile(appJSONFile.Name())
 	if err != nil {
 		return "", fmt.Errorf("Cannot read app.json file: %v", err)
 	}
@@ -95,16 +95,16 @@ func getPhaseScript(appName string, image string, phase string) (string, error)
 		return "", nil
 	}
 
-	var appJson AppJson
-	if err = json.Unmarshal(b, &appJson); err != nil {
+	var appJSON AppJSON
+	if err = json.Unmarshal(b, &appJSON); err != nil {
 		return "", fmt.Errorf("Cannot parse app.json: %v", err)
 	}
 
 	if phase == "predeploy" {
-		return appJson.Scripts.Dokku.Predeploy, nil
+		return appJSON.Scripts.Dokku.Predeploy, nil
 	}
 
-	return appJson.Scripts.Dokku.Postdeploy, nil
+	return appJSON.Scripts.Dokku.Postdeploy, nil
 }
 
 // getReleaseCommand extracts the release command from a given app's procfile

plugins/app-json/triggers.go

@@ -1,5 +1,6 @@
 package appjson
 
+// TriggerPostDeploy is a trigger to execute the postdeploy deployment task
 func TriggerPostDeploy(appName string, imageTag string) error {
 	if err := executeScript(appName, imageTag, "postdeploy"); err != nil {
 		return err
@@ -7,6 +8,7 @@ func TriggerPostDeploy(appName string, imageTag string) error {
 	return nil
 }
 
+// TriggerPreDeploy is a trigger to execute predeploy and release deployment tasks
 func TriggerPreDeploy(appName string, imageTag string) error {
 	if err := executeScript(appName, imageTag, "predeploy"); err != nil {
 		return err

plugins/common/common.go

@@ -38,7 +38,7 @@ func NewShellCmd(command string) *ShellCmd {
 	return NewShellCmdWithArgs(cmd, args...)
 }
 
-// NewShellCmd returns a new ShellCmd struct
+// NewShellCmdWithArgs returns a new ShellCmd struct
 func NewShellCmdWithArgs(cmd string, args ...string) *ShellCmd {
 	commandString := strings.Join(append([]string{cmd}, args...), " ")
 
@@ -50,7 +50,7 @@ func NewShellCmdWithArgs(cmd string, args ...string) *ShellCmd {
 	}
 }
 
-func (sc *ShellCmd) Setup() {
+func (sc *ShellCmd) setup() {
 	env := os.Environ()
 	for k, v := range sc.Env {
 		env = append(env, fmt.Sprintf("%s=%s", k, v))
@@ -64,7 +64,7 @@ func (sc *ShellCmd) Setup() {
 
 // Execute is a lightweight wrapper around exec.Command
 func (sc *ShellCmd) Execute() bool {
-	sc.Setup()
+	sc.setup()
 
 	if err := sc.Command.Run(); err != nil {
 		return false
@@ -74,13 +74,13 @@ func (sc *ShellCmd) Execute() bool {
 
 // Output is a lightweight wrapper around exec.Command.Output()
 func (sc *ShellCmd) Output() ([]byte, error) {
-	sc.Setup()
+	sc.setup()
 	return sc.Command.Output()
 }
 
 // CombinedOutput is a lightweight wrapper around exec.Command.CombinedOutput()
 func (sc *ShellCmd) CombinedOutput() ([]byte, error) {
-	sc.Setup()
+	sc.setup()
 	return sc.Command.CombinedOutput()
 }
 
@@ -90,7 +90,7 @@ func AppRoot(appName string) string {
 	return fmt.Sprintf("%v/%v", dokkuRoot, appName)
 }
 
-// AppRoot returns the app root path
+// AppHostRoot returns the app root path
 func AppHostRoot(appName string) string {
 	dokkuHostRoot := MustGetEnv("DOKKU_HOST_ROOT")
 	return fmt.Sprintf("%v/%v", dokkuHostRoot, appName)
@@ -920,31 +920,3 @@ func pruneUnusedImages(appName string) {
 	pruneCmd.Command.Stderr = &stderr
 	pruneCmd.Execute()
 }
-
-func ConfigGet(appName string, key string, defaultValue string) (string, error) {
-	b, err := PlugnTriggerOutput("config-get", []string{appName, key}...)
-	if err != nil {
-		return defaultValue, err
-	}
-
-	value := defaultValue
-	if string(b[:]) != "" {
-		value = string(b[:])
-	}
-
-	return value, nil
-}
-
-func ConfigGetGlobal(key string, defaultValue string) (string, error) {
-	b, err := PlugnTriggerOutput("config-get-global", []string{key}...)
-	if err != nil {
-		return defaultValue, err
-	}
-
-	value := defaultValue
-	if string(b[:]) != "" {
-		value = string(b[:])
-	}
-
-	return value, nil
-}