| // Copyright Istio Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package cmd |
| |
| import ( |
| "github.com/spf13/cobra" |
| "github.com/spf13/pflag" |
| ) |
| |
| var helpFlags = map[string]bool{ |
| "log_as_json": true, |
| "log_stacktrace_level": true, |
| "log_target": true, |
| "log_caller": true, |
| "log_output_level": true, |
| // istioctl also inherits support for log_rotate, log_rotate_max_age, log_rotate_max_backups, |
| // log_rotate_max_size, but these are rarely appropriate for a user-facing CLI so we ignore them |
| } |
| |
| func optionsCommand(rootCmd *cobra.Command) *cobra.Command { |
| retval := &cobra.Command{ |
| Use: "options", |
| Short: "Displays istioctl global options", |
| Args: cobra.ExactArgs(0), |
| } |
| |
| retval.SetHelpFunc(func(c *cobra.Command, args []string) { |
| c.Printf("The following options can be passed to any command:\n") |
| // (Currently the only global options we show are help options) |
| rootCmd.PersistentFlags().VisitAll(func(flag *pflag.Flag) { |
| if _, ok := helpFlags[flag.Name]; ok { |
| // Currently every flag.Shorthand is "", so there is no point in showing shorthands |
| shorthand := " " |
| if flag.Shorthand != "" { |
| shorthand = "-" + flag.Shorthand + "," |
| } |
| c.Printf(" %s --%s: %s\n", shorthand, flag.Name, flag.Usage) |
| } |
| }) |
| }) |
| |
| return retval |
| } |
| |
| // validateFlagIsSetManuallyOrNot can validate that a persistent flag is set manually or not by user for given command |
| func validateFlagIsSetManuallyOrNot(istioCmd *cobra.Command, flagName string) bool { |
| if istioCmd != nil { |
| allPersistentFlagSet := istioCmd.PersistentFlags() |
| if flagName != "" { |
| return allPersistentFlagSet.Changed(flagName) |
| } |
| } |
| return false |
| } |