Git的分支击变快捷方式 [英] Git Branch Bash Variable Shortcut

问题描述

我想创建，我可以用它来指在我的Git分支电流一个bash变量：类似$分支

I am trying to create a bash variable which I can use to refer to my current branch in Git: something like $branch.

添加时间：支= $（GIT象征-REF --short -q HEAD）进入我的的.bash_profile ，我不断​​收到：致命的：不是git仓库（或任何父目录）：git的当我开始一个新的终端

When adding: branch=$(git symbolic-ref --short -q HEAD) into my bash_profile, I keep getting: fatal: Not a git repository (or any of the parent directories): .git when I start a new terminal.

此外，回声$分支不打印出来的分支名称，如 git的象征-REF --short -q HEAD 会。

Furthermore, echo $branch does not print out the branch name, as git symbolic-ref --short -q HEAD would.

我希望能够使用它没有打印出来的分支名（我已经在我的提示），但做的事情，如：

I'd like to be able to use it not to print out the branch name (I already have that in my prompt) but to do things like:

混帐推起源$分支

推荐答案

你是哪个分支上取决于你在哪个目录，如果你有两个混帐工作的​​树木，〜/ A 和〜/ b ，然后键入 CD〜/ A 可以让你在一个分支并键入 CD〜/ b 可以把你的另一分支。

Which branch you are on depends on which directory you are in. If you have two git work trees, ~/a and ~/b, then typing cd ~/a can put you on one branch and typing cd ~/b can put you on another branch.

所以试图设置 $分支在的.bash_profile 是行不通的。您需要更新 $分支每次更改工作树木，时间可以改变当前的工作树枝的任何命令后。

So trying to set $branch in your .bash_profile isn't going to work. You need to update $branch every time you change work trees, and after any command that can change the branch of the current work tree.

做的最简单的事情是刚刚的不的设置变量。相反，做一个别名：

The simplest thing to do is just not set a variable. Instead, make an alias:

alias branch='git symbolic-ref --short -q HEAD 2>/dev/null'

，然后用它是这样的：

And then use it like this:

git push origin $(branch)

或者类似这样的，如果你是老派的：

or like this if you're old-school:

git push origin `branch`

如果你真的要设置环境变量，最简单的解决方法是每次打印的提示时间，只是设置：

If you really want to set an environment variable, the simplest solution is to just set it every time you print your prompt:

_prompt_command () {
    export branch=$(git symbolic-ref --short -q HEAD 2>/dev/null)
}
export PROMPT_COMMAND=_prompt_command

请注意：你应该检查你的的.bash_profile 和的.bashrc 来看看，如果你已经设置 PROMPT_COMMAND 。如果是这样，只要设置分支中的任何功能，您已经运行作为你的prompt命令。

Note: you should check your .bash_profile and .bashrc to see if you're already setting PROMPT_COMMAND. If so, just set branch in whatever function you're already running as your prompt command.

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