feat: rewrite the storage plugin in golang

Refs #6814

plugins/storage/src/subcommands/subcommands.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/dokku/dokku/plugins/common"
+	"github.com/dokku/dokku/plugins/storage"
+
+	flag "github.com/spf13/pflag"
+)
+
+func main() {
+	parts := strings.Split(os.Args[0], "/")
+	subcommand := parts[len(parts)-1]
+
+	var err error
+	switch subcommand {
+	case "default":
+		err = storage.CommandHelp()
+	case "ensure-directory":
+		args := flag.NewFlagSet("storage:ensure-directory", flag.ExitOnError)
+		chown := args.String("chown", "herokuish", "--chown: chown option (herokuish, heroku, paketo, root, false)")
+		args.Parse(os.Args[2:])
+		directory := args.Arg(0)
+		err = storage.CommandEnsureDirectory(directory, *chown)
+	case "list":
+		args := flag.NewFlagSet("storage:list", flag.ExitOnError)
+		format := args.String("format", "text", "--format: output format (text, json)")
+		args.Parse(os.Args[2:])
+		appName := args.Arg(0)
+		err = storage.CommandList(appName, *format)
+	case "mount":
+		args := flag.NewFlagSet("storage:mount", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		appName := args.Arg(0)
+		mountPath := args.Arg(1)
+		err = storage.CommandMount(appName, mountPath)
+	case "report":
+		args := flag.NewFlagSet("storage:report", flag.ExitOnError)
+		format := args.String("format", "stdout", "--format: output format (stdout, json)")
+		args.Parse(os.Args[2:])
+
+		osArgs, infoFlag, parseErr := common.ParseReportArgs("storage", args.Args())
+		if parseErr != nil {
+			err = parseErr
+		} else {
+			appName := ""
+			if len(osArgs) > 0 {
+				appName = osArgs[0]
+			}
+			if *format == "stdout" {
+				err = storage.CommandReport(appName, infoFlag)
+			} else {
+				err = storage.CommandReportSingleApp(appName, infoFlag, *format)
+			}
+		}
+	case "unmount":
+		args := flag.NewFlagSet("storage:unmount", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		appName := args.Arg(0)
+		mountPath := args.Arg(1)
+		err = storage.CommandUnmount(appName, mountPath)
+	default:
+		err = fmt.Errorf("Invalid plugin subcommand call: %s", subcommand)
+	}
+
+	if err != nil {
+		common.LogFailWithError(err)
+	}
+}