refactor: first pass at rewriting apps plugin in go

plugins/apps/subcommands.go

@@ -0,0 +1,187 @@
+package apps
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/dokku/dokku/plugins/common"
+)
+
+// CommandClone clones an app
+func CommandClone(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(appName)
+	return nil
+}
+
+// CommandCreate creates app via command line
+func CommandCreate(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	return createApp(appName)
+}
+
+// CommandDestroy destroys an app
+func CommandDestroy(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if appName == "tls" {
+		return errors.New("Unable to destroy tls directory")
+	}
+
+	if len(args) >= 2 {
+		force := args[1]
+		if force == "force" {
+			os.Setenv("DOKKU_APPS_FORCE_DELETE", "1")
+		}
+	}
+
+	return destroyApp(appName)
+}
+
+// CommandExists checks if an app exists
+func CommandExists(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	return appExists(appName)
+}
+
+// CommandList lists all apps
+func CommandList(args []string) error {
+	common.LogInfo2Quiet("My Apps")
+	apps, err := common.DokkuApps()
+	if err != nil {
+		return err
+	}
+
+	for _, appName := range apps {
+		common.Log(appName)
+	}
+
+	return nil
+}
+
+// CommandLock locks an app for deployment
+func CommandLock(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if err := common.VerifyAppName(appName); err != nil {
+		return err
+	}
+
+	lockfilePath := fmt.Sprintf("%v/.deploy.lock", common.AppRoot(appName))
+	if _, err = os.Create(lockfilePath); err != nil {
+		return errors.New("Unable to create deploy lock")
+	}
+
+	common.LogInfo1("Deploy lock created")
+	return nil
+}
+
+// CommandLocked checks if an app is locked for deployment
+func CommandLocked(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if err := common.VerifyAppName(appName); err != nil {
+		return err
+	}
+
+	if appIsLocked(appName) {
+		common.LogQuiet("Deploy lock exists")
+		return nil
+
+	}
+	return errors.New("Deploy lock does not exist")
+}
+
+// CommandRename renames an app
+func CommandRename(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(appName)
+	return nil
+}
+
+// CommandReport displays an app report for one or more apps
+func CommandReport(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	infoFlag := ""
+	if len(args) > 1 {
+		infoFlag = args[1]
+	}
+
+	if strings.HasPrefix(appName, "--") {
+		infoFlag = appName
+		appName = ""
+	}
+
+	if len(appName) == 0 {
+		apps, err := common.DokkuApps()
+		if err != nil {
+			return err
+		}
+		for _, appName := range apps {
+			if err := ReportSingleApp(appName, infoFlag); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+
+	return ReportSingleApp(appName, infoFlag)
+}
+
+// CommandUnlock unlocks an app for deployment
+func CommandUnlock(args []string) error {
+	appName, err := getAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if err := common.VerifyAppName(appName); err != nil {
+		return err
+	}
+
+	lockfilePath := fmt.Sprintf("%v/.deploy.lock", common.AppRoot(appName))
+	_, err = os.Stat(lockfilePath)
+	if !os.IsNotExist(err) {
+		common.LogWarn("A deploy may be in progress.")
+		common.LogWarn("Removing the app lock will not stop in progress deploys.")
+	}
+
+	err = os.Remove(lockfilePath)
+	if err == nil {
+		common.LogInfo1("Deploy lock removed")
+		return nil
+	}
+
+	return errors.New("Unable to remove deploy lock.")
+}