17840: Deduplicate flag-parsing code.

[arvados.git] / lib / install / init.go

diff --git a/lib/install/init.go b/lib/install/init.go
index 8b2fbfdd026bb292a53c3d12c3da625c330cf539..1d063506b800b28d495cd93c5f1ffd58f70c261f 100644 (file)
--- a/lib/install/init.go
+++ b/lib/install/init.go
@@ -59,17 +59,10 @@ func (initcmd *initCommand) RunCommand(prog string, args []string, stdin io.Read
        versionFlag := flags.Bool("version", false, "Write version information to stdout and exit 0")
        flags.StringVar(&initcmd.ClusterID, "cluster-id", "", "cluster `id`, like x1234 for a dev cluster")
        flags.StringVar(&initcmd.Domain, "domain", hostname, "cluster public DNS `name`, like x1234.arvadosapi.com")
-       err = flags.Parse(args)
-       if err == flag.ErrHelp {
-               err = nil
-               return 0
-       } else if err != nil {
-               return 2
+       if ok, code := cmd.ParseFlags(flags, prog, args, "", stderr); !ok {
+               return code
        } else if *versionFlag {
                return cmd.Version.RunCommand(prog, args, stdin, stdout, stderr)
-       } else if flags.NArg() != 0 {
-               err = fmt.Errorf("unrecognized command line arguments: %v", flags.Args())
-               return 2
        } else if !regexp.MustCompile(`^[a-z][a-z0-9]{4}`).MatchString(initcmd.ClusterID) {
                err = fmt.Errorf("cluster ID %q is invalid; must be an ASCII letter followed by 4 alphanumerics (try -help)", initcmd.ClusterID)
                return 1