refactor: rewrite proxy plugin in golang

plugins/proxy/src/subcommands/subcommands.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/dokku/dokku/plugins/common"
+	"github.com/dokku/dokku/plugins/proxy"
+)
+
+// main entrypoint to all subcommands
+func main() {
+	parts := strings.Split(os.Args[0], "/")
+	subcommand := parts[len(parts)-1]
+
+	var err error
+	switch subcommand {
+	case "disable":
+		args := flag.NewFlagSet("proxy:disable", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandDisable(args.Args())
+	case "enable":
+		args := flag.NewFlagSet("proxy:enable", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandEnable(args.Args())
+	case "ports":
+		args := flag.NewFlagSet("proxy:ports", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandPorts(args.Args())
+	case "ports-add":
+		args := flag.NewFlagSet("proxy:ports-add", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandPortsAdd(args.Args())
+	case "ports-clear":
+		args := flag.NewFlagSet("proxy:ports-clear", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandPortsClear(args.Args())
+	case "ports-remove":
+		args := flag.NewFlagSet("proxy:ports-remove", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandPortsRemove(args.Args())
+	case "ports-set":
+		args := flag.NewFlagSet("proxy:ports-set", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandPortsSet(args.Args())
+	case "report":
+		args := flag.NewFlagSet("proxy:report", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandReport(args.Args())
+	case "set":
+		args := flag.NewFlagSet("proxy:set", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = proxy.CommandSet(args.Args())
+	default:
+		common.LogFail(fmt.Sprintf("Invalid plugin subcommand call: %s", subcommand))
+	}
+
+	if err != nil {
+		common.LogFail(err.Error())
+	}
+}