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45 lines
1.9 KiB
Markdown
45 lines
1.9 KiB
Markdown
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# Homebrew Shell Completion
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Homebrew comes with completion definitions for the `brew` command. Some packages also provide completion definitions for their own programs.
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`zsh`, `bash` and `fish` are currently supported. (Homebrew provides `brew` completions for `zsh` and `bash`; `fish` provides its own `brew` completions.)
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You must configure your shell to enable the completion support. This is because the Homebrew-managed completions are stored under `HOMEBREW_PREFIX`, which your system shell may not be aware of, and because it is difficult to automatically configure `bash` and `zsh` completions in a robust manner, so the Homebrew installer cannot do it for you.
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## Configuring Completions in `bash`
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To make Homebrew's completions available in `bash`, you must source the definitions as part of your shell startup. Add the following to your `~/.bashrc` file:
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```sh
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if type brew 2&>/dev/null; then
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for completion_file in $(brew --prefix)/etc/bash_completion.d/*; do
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source "$completion_file"
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done
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fi
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```
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## Configuring Completions in `zsh`
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To make Homebrew's completions available in `zsh`, you must get the Homebrew-managed zsh site-functions on your `$FPATH` before initializing `zsh`'s completion facility. Add the following to your `~/.zshrc` file:
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```sh
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if type brew &>/dev/null; then
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FPATH=$(brew --prefix)/share/zsh/site-functions:$FPATH
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fi
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```
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This must be done before `compinit` is called. (Note: if you are using Oh My Zsh, it will call `compinit` for you, so this must be done before you call `oh-my-zsh.sh`.)
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You may also need to forcibly rebuild `zcompdump`:
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```sh
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rm -f ~/.zcompdump; compinit
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```
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Additionally, if you receive "zsh compinit: insecure directories" warnings when attempting to load these completions, you may need to run this:
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```sh
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chmod go-w "$(brew --prefix)/share"
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```
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## Configuring Completions in `fish`
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No configuration is needed in `fish`. Friendly!
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