Mac 下 git 命令自动补全

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一. 安装 bash-completion

brew install bash-completion

安装成功后提示：

==> Caveats
Add the following line to your ~/.bash_profile:
  [ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion

Bash completion has been installed to:
  /usr/local/etc/bash_completion.d

接下来按照提示，将下面语句放到~/.bash_profile

[ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion

二. 下载 git-completion.bash

访问 https://github.com/git/git

选择 branch 为你 git 版本的分支，比如我的：

$ git version
git version 2.13.5 (Apple Git-94)

注意： 这里如果不使用相匹配的版本，会导致后面 git 补全命令时报错 Unknown option:

好，选好分支后，找到 contrib/completion/git-completion.bash文件，点击Raw，然后根据地址栏内容进行下载，存为 ~/.git-completion.bash

curl https://raw.githubusercontent.com/git/git/v2.13.5/contrib/completion/git-completion.bash -o ~/.git-completion.bash

修改 ~/.bash_profile

if [ -f ~/.git-completion.bash ]; then
    . ~/.git-completion.bash
fi

然后执行：

source ~/.bash_profile