在 Bash 命令提示符下添加 git branch [英] Adding git branch on the Bash command prompt
问题描述
我尝试在 bash 提示符下添加我当前正在处理(签出)的 git 分支，但没有成功..(同时保持我当前显示活动目录/文件的路径完好无损)我家有 .bashrc 文件，但我也看到很多人提到 .profile 文件..
git 1.9.3 or later: use __git_ps1
Git 提供了一个名为 git 的 shell 脚本-prompt.sh，其中包含一个函数 __git_ps1
打印文本以添加到 bash PS1 提示(包括分支名称)
它最基本的用法是:
$ __git_ps1(掌握)它还需要一个可选的格式字符串:
$ __git_ps1 'git:[%s]'混帐:[大师]如何获得
首先，将文件复制到某处(例如~/.git-prompt.sh).
选项 1:使用文件系统上的现有副本.示例(Mac OS X 10.15):
$ find/-name 'git-prompt.sh' -type f -print -quit 2>/dev/null/Library/Developer/CommandLineTools/usr/share/git-core/git-prompt.sh选项 2:从 GitHub 拉取脚本 .
接下来，将以下行添加到您的.bashrc/.zshrc:
source ~/.git-prompt.sh最后，更改您的 PS1 以调用 __git_ps1 作为命令替换:
重击:
PS1='[u@h W$(__git_ps1 " (%s)")]$ 'Zsh:
setopt PROMPT_SUBST ;PS1='[%n@%m %c$(__git_ps1 " (%s)")]$'git <1.9.3
但请注意，只有 git 1.9.3(2014 年 5 月)或更高版本允许您安全显示该分支名称(!)
请参阅 commit 8976500 来自 理查德汉森 (richardhansen):
bash 和 zsh 都将 PS1 的值进行参数扩展、命令替换和算术扩展.
而不是在 PS1 中包含原始的、未转义的分支名称，当运行在两个或三参数模式，构造 PS1 来引用一个保存分支名称的变量.
由于shell不会递归扩展，这就避免了通过特制的分支名称(例如
)执行任意代码'$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)'.哪个狡猾的头脑会这样命名一个分支?;) (xkcd 中的妈妈身边)
更多示例
still_dreaming_1 报告 在评论中:
<块引用>如果您想要带有 xterm(在我的 .bashrc 中)的颜色提示，这似乎很有效:
PS1='[e]0;u@h: wa]
${debian_chroot:+($debian_chroot)}[ 33[01;32m]u@h[ 33[00m]:[ 3 3[01;34m]w[ 33[00m]$(__git_ps1)$ '<块引用>
一切都是不同的颜色，包括树枝.
在 Linux Mint 17.3 Cinnamon 64 位中:
PS1='${debian_chroot:+($debian_chroot)}[ 33[01;32m]u@h[ 33[01;34m] w[ 33[00m]$(__git_ps1) $ 'I tried adding the git branch I'm currently working on (checked-out) on the bash prompt without success.. (while keeping my current path which shows the active directory/file intact) I have a .bashrc file on my home, but I also saw many people mentioning the .profile file..
git 1.9.3 or later: use __git_ps1
Git provides a shell script called git-prompt.sh, which includes a function __git_ps1 that
prints text to add to bash PS1 prompt (includes branch name)
Its most basic usage is:
$ __git_ps1
(master)
It also takes an optional format string:
$ __git_ps1 'git:[%s]'
git:[master]
How to Get It
First, copy the file to somewhere (e.g. ~/.git-prompt.sh).
Option 1: use an existing copy on your filesystem. Example (Mac OS X 10.15):
$ find / -name 'git-prompt.sh' -type f -print -quit 2>/dev/null
/Library/Developer/CommandLineTools/usr/share/git-core/git-prompt.sh
Option 2: Pull the script from GitHub.
Next, add the following line to your .bashrc/.zshrc:
source ~/.git-prompt.sh
Finally, change your PS1 to call __git_ps1 as command-substitution:
Bash:
PS1='[u@h W$(__git_ps1 " (%s)")]$ '
Zsh:
setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]$ '
git < 1.9.3
But note that only git 1.9.3 (May 2014) or later allows you to safely display that branch name(!)
See commit 8976500 by Richard Hansen (richardhansen):
Both bash and zsh subject the value of PS1 to parameter expansion, command substitution, and arithmetic expansion.
Rather than include the raw, unescaped branch name in
PS1when running in two- or three-argument mode, constructPS1to reference a variable that holds the branch name.Because the shells do not recursively expand, this avoids arbitrary code execution by specially-crafted branch names such as
'$(IFS=_;cmd=sudo_rm_-rf_/;$cmd)'.
What devious mind would name a branch like that? ;) (Beside a Mom as in xkcd)
More Examples
still_dreaming_1 reports in the comments:
This seems to work great if you want a color prompt with
xterm(in my.bashrc):
PS1='[e]0;u@h: wa]
${debian_chroot:+($debian_chroot)}[ 33[01;32m]u@h[ 33[00m]:[ 33[01;34m]w[ 33[00m]$(__git_ps1)$ '
Everything is a different color, including the branch.
In in Linux Mint 17.3 Cinnamon 64-bit:
PS1='${debian_chroot:+($debian_chroot)}[ 33[01;32m]u@h[ 33[01;34m] w[ 33[00m]$(__git_ps1) $ '
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