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Provide a cli option to enable and disable completion command
Signed-off-by: Adrian Orive <adrian.orive.oneca@gmail.com>
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/* | ||
Copyright 2020 The Kubernetes 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. | ||
*/ | ||
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package cli | ||
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import ( | ||
"fmt" | ||
"os" | ||
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"github.com/spf13/cobra" | ||
) | ||
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// TODO: support fish code completion | ||
// At the time this comment is written, the imported spf13.cobra version does not support fish completion. | ||
// However, fish completion has been added to new spf13.cobra versions. When a new spf13.cobra version that | ||
// supports it is used, the changes indicated with `NOTE(fish)` should be applied to support it. | ||
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func (c *cli) newCompletionCmd() *cobra.Command { | ||
return &cobra.Command{ | ||
Use: "completion [bash|zsh|powershell]", // NOTE(fish): add fish | ||
DisableFlagsInUseLine: true, | ||
ValidArgs: []string{"bash", "zsh", "powershell"}, // NOTE(fish): add fish | ||
Args: cobra.ExactValidArgs(1), | ||
Short: "Generate completion script", | ||
Long: fmt.Sprintf(`To load completions: | ||
Bash: | ||
$ source <(%[1]s completion bash) | ||
# To load completions for each session, execute once: | ||
Linux: | ||
$ %[1]s completion bash > /etc/bash_completion.d/%[1]s | ||
MacOS: | ||
$ %[1]s completion bash > /usr/local/etc/bash_completion.d/%[1]s | ||
Zsh: | ||
# If shell completion is not already enabled in your environment you will need | ||
# to enable it. You can execute the following once: | ||
$ echo "autoload -U compinit; compinit" >> ~/.zshrc | ||
# To load completions for each session, execute once: | ||
$ %[1]s completion zsh > "${fpath[1]}/_%[1]s" | ||
# You will need to start a new shell for this setup to take effect. | ||
`, c.commandName), | ||
/* NOTE(fish): add the following description to Long | ||
` | ||
Fish: | ||
$ %[1]s completion fish | source | ||
# To load completions for each session, execute once: | ||
$ %[1]s completion fish > ~/.config/fish/completions/%[1]s.fish | ||
` | ||
*/ | ||
RunE: func(cmd *cobra.Command, args []string) (err error) { | ||
switch args[0] { | ||
case "bash": | ||
err = cmd.Root().GenBashCompletion(os.Stdout) | ||
case "zsh": | ||
err = cmd.Root().GenZshCompletion(os.Stdout) | ||
// NOTE(fish): uncomment the following two lines | ||
//case "fish": | ||
// err = cmd.Root().GenFishCompletion(os.Stdout, true) | ||
case "powershell": | ||
err = cmd.Root().GenPowerShellCompletion(os.Stdout) | ||
} | ||
return | ||
}, | ||
} | ||
} |