adding ability to autogenerate witness config yaml

Signed-off-by: chaosinthecrd <[email protected]>

cmd/config.go

@@ -47,10 +47,10 @@ func initConfig(rootCmd *cobra.Command, rootOptions *options.RootOptions) error
 		return fmt.Errorf("failed to read config file: %w", err)
 	}
 
-	//Currently we do not accept configuration for root commands
+	// Currently we do not accept configuration for root commands
 	commands := rootCmd.Commands()
 	for _, cm := range commands {
-		//Check which command we are running
+		// Check which command we are running
 		if !contains(os.Args, cm.Name()) {
 			continue
 		}
@@ -82,6 +82,28 @@ func initConfig(rootCmd *cobra.Command, rootOptions *options.RootOptions) error
 	return nil
 }
 
+func genConfig(rootCmd *cobra.Command, path string) error {
+	v := viper.New()
+
+	// Currently we do not accept configuration for root commands
+	commands := rootCmd.Commands()
+	for _, cm := range commands {
+		v.Set(cm.Name(), nil)
+		flags := cm.Flags()
+		flags.VisitAll(func(f *pflag.Flag) {
+			configKey := fmt.Sprintf("%s.%s", cm.Name(), f.Name)
+			if f.Value.Type() == "stringSlice" {
+				v.Set(configKey, []string{})
+			} else {
+				v.Set(configKey, "")
+			}
+		})
+	}
+
+	v.WriteConfigAs(path)
+	return nil
+}
+
 func contains(s []string, str string) bool {
 	for _, v := range s {
 		if v == str {

cmd/root.go

@@ -41,6 +41,7 @@ func New() *cobra.Command {
 	cmd.AddCommand(VerifyCmd())
 	cmd.AddCommand(RunCmd())
 	cmd.AddCommand(CompletionCmd())
+	cmd.AddCommand(GenConfigCmd())
 	cmd.AddCommand(versionCmd())
 	cobra.OnInitialize(func() { preRoot(cmd, ro, logger) })
 	return cmd