From 057c418be4bc883789cbf2517a4f32780b896289 Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Wed, 11 Mar 2020 01:19:01 -0400
Subject: [PATCH] feat: implement :clone and :rename

---
 plugins/apps/functions.go                   | 10 +++
 plugins/apps/src/subcommands/subcommands.go |  7 +-
 plugins/apps/subcommands.go                 | 94 +++++++++++++++++++--
 3 files changed, 104 insertions(+), 7 deletions(-)

diff --git a/plugins/apps/functions.go b/plugins/apps/functions.go
index f171b6eb9..adc7e960d 100644
--- a/plugins/apps/functions.go
+++ b/plugins/apps/functions.go
@@ -96,6 +96,16 @@ func getAppName(args []string) (appName string, err error) {
 	return
 }
 
+func getNewAppName(args []string) (appName string, err error) {
+	if len(args) >= 2 {
+		appName = args[1]
+	} else {
+		err = errors.New("Please specify an new app name")
+	}
+
+	return
+}
+
 func listImagesByAppLabel(appName string) ([]string, error) {
 	command := []string{
 		common.DockerBin(),
diff --git a/plugins/apps/src/subcommands/subcommands.go b/plugins/apps/src/subcommands/subcommands.go
index 8a628ee10..17cd59c60 100644
--- a/plugins/apps/src/subcommands/subcommands.go
+++ b/plugins/apps/src/subcommands/subcommands.go
@@ -19,8 +19,10 @@ func main() {
 	switch subcommand {
 	case "clone":
 		args := flag.NewFlagSet("apps:clone", flag.ExitOnError)
+		skipDeploy := args.Bool("skip-deploy", false, "--skip-deploy: skip deploy of the new app")
+		ignoreExisting := args.Bool("ignore-existing", false, "--ignore-existing: exit 0 if new app already exists")
 		args.Parse(os.Args[2:])
-		err = apps.CommandClone(args.Args())
+		err = apps.CommandClone(args.Args(), *skipDeploy, *ignoreExisting)
 	case "create":
 		args := flag.NewFlagSet("apps:create", flag.ExitOnError)
 		args.Parse(os.Args[2:])
@@ -47,8 +49,9 @@ func main() {
 		err = apps.CommandLocked(args.Args())
 	case "rename":
 		args := flag.NewFlagSet("apps:rename", flag.ExitOnError)
+		skipDeploy := args.Bool("skip-deploy", false, "--skip-deploy: skip deploy of the new app")
 		args.Parse(os.Args[2:])
-		err = apps.CommandRename(args.Args())
+		err = apps.CommandRename(args.Args(), *skipDeploy)
 	case "report":
 		args := flag.NewFlagSet("apps:report", flag.ExitOnError)
 		args.Parse(os.Args[2:])
diff --git a/plugins/apps/subcommands.go b/plugins/apps/subcommands.go
index ff58babd8..e3d8d9ded 100644
--- a/plugins/apps/subcommands.go
+++ b/plugins/apps/subcommands.go
@@ -10,13 +10,55 @@ import (
 )
 
 // CommandClone clones an app
-func CommandClone(args []string) error {
-	appName, err := getAppName(args)
+func CommandClone(args []string, skipDeploy bool, ignoreExisting bool) error {
+	oldAppName, err := getAppName(args)
 	if err != nil {
 		return err
 	}
 
-	fmt.Println(appName)
+	newAppName, err := getNewAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if err = common.IsValidAppName(oldAppName); err != nil {
+		return err
+	}
+
+	if err = common.IsValidAppName(newAppName); err != nil {
+		return err
+	}
+
+	if err = appExists(oldAppName); err != nil {
+		return err
+	}
+
+	if err = appExists(newAppName); err == nil {
+		if ignoreExisting {
+			common.LogWarn("Name is already taken")
+			return nil
+		}
+
+		return errors.New("Name is already taken")
+	}
+
+	common.LogInfo1Quiet(fmt.Sprintf("Cloning %s to %s", oldAppName, newAppName))
+	if err = createApp(newAppName); err != nil {
+		return err
+	}
+
+	if err = PlugnTrigger("post-app-clone-setup", []string{oldAppName, newAppName}...); err != nil {
+		return err
+	}
+
+	if skipDeploy {
+		os.Setenv("SKIP_REBUILD", "true")
+	}
+
+	if err = PlugnTrigger("post-app-clone", []string{oldAppName, newAppName}...); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -116,13 +158,55 @@ func CommandLocked(args []string) error {
 }
 
 // CommandRename renames an app
-func CommandRename(args []string) error {
+func CommandRename(args []string, skipDeploy bool) error {
 	appName, err := getAppName(args)
 	if err != nil {
 		return err
 	}
 
-	fmt.Println(appName)
+	newAppName, err := getNewAppName(args)
+	if err != nil {
+		return err
+	}
+
+	if err = common.IsValidAppName(oldAppName); err != nil {
+		return err
+	}
+
+	if err = common.IsValidAppName(newAppName); err != nil {
+		return err
+	}
+
+	if err = appExists(oldAppName); err != nil {
+		return err
+	}
+
+	if err = appExists(newAppName); err == nil {
+		return errors.New("Name is already taken")
+	}
+
+	common.LogInfo1Quiet(fmt.Sprintf("Renaming %s to %s", oldAppName, newAppName))
+	if err = createApp(newAppName); err != nil {
+		return err
+	}
+
+	if err = PlugnTrigger("post-app-rename-setup", []string{oldAppName, newAppName}...); err != nil {
+		return err
+	}
+
+	os.Setenv("DOKKU_APPS_FORCE_DELETE", "1")
+	if err = destroyApp(appName); err != nil {
+		return err
+	}
+
+	if skipDeploy {
+		os.Setenv("SKIP_REBUILD", "true")
+	}
+
+	if err = PlugnTrigger("post-app-rename", []string{oldAppName, newAppName}...); err != nil {
+		return err
+	}
+
 	return nil
 }