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Add README section for RemoveCommand

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Étienne Vallette d'Osia 2015-03-13 12:40:00 +09:00
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README.md
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@ -143,6 +143,15 @@ A flag can also be assigned locally which will only apply to that specific comma
HugoCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from") HugoCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
### Remove a command from its parent
Removing a command is not a common action is simple program but it allows 3rd parties to customize an existing command tree.
In this exemple, we remove the existing `VersionCmd` command of an existing root command, and we replace it by our own version.
mainlib.RootCmd.RemoveCommand(mainlib.VersionCmd)
mainlib.RootCmd.AddCommand(versionCmd)
### Once all commands and flags are defined, Execute the commands ### Once all commands and flags are defined, Execute the commands
Execute should be run on the root for clarity, though it can be called on any command. Execute should be run on the root for clarity, though it can be called on any command.