如何在Bash提示符中显示带颜色的git分支？

问题描述

我在git存储库中工作时使用this guide来显示gnome终端(Ubuntu 15.10)中的分支名称。基于上面我现在在〜/.bashrc文件中有以下内容：

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

…

# Add git branch if its present to PS1
parse_git_branch() {
 git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
if [ "$color_prompt" = yes ]; then
 PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[01;31m\]$(parse_git_branch)\[\033[00m\]\$ '
else
 PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w$(parse_git_branch)\$ '
fi
unset color_prompt force_color_prompt

结果我现在得到：

command-line,bash,git,ubuntu

所以它有效。但为什么我的user @ host的着色被删除了？我还希望分支名称应该是彩色的。在它看起来像这样之前：

command-line,bash,git,ubuntu

更新：我现在尝试了这个指南：

https://coderwall.com/p/fasnya/add-git-branch-name-to-bash-prompt

将此添加到.bashrc：

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\u@\h \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "

这工作：

command-line,bash,git,ubuntu

请注意.bashrc我也有这个(默认)：

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

我还没有找到该片段给出正确结果而其他版本没有的原因。有什么输入吗？

这是我的.bashrc版本，其中启用了旧代码段不起作用：

http://pastebin.com/M8kjEiH3

最佳解决办法

这个片段：

# Add git branch if its present to PS1

parse_git_branch() {
 git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
if [ "$color_prompt" = yes ]; then
 PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[01;31m\]$(parse_git_branch)\[\033[00m\]\$ '
else
 PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w$(parse_git_branch)\$ '
fi

是要替换默认的提示定义：

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi

结束于：

unset color_prompt force_color_prompt

您发布的.bashrc显示您在默认提示定义和unset color_prompt force_color_prompt(第64行)之后添加它。

使用代码段替换默认提示定义或保留~/.bashrc，并在第64行注释默认提示定义和unset color_prompt force_color_prompt：

所以.bashrc的一部分看起来像

parse_git_branch() {
 git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
if [ "$color_prompt" = yes ]; then
 PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[01;31m\] $(parse_git_branch)\[\033[00m\]\$ '
else
 PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w$(parse_git_branch)\$ '
fi
# THE SIX LINES BELOW are the default prompt and the unset (which were in the original .bashrc)
#if [ "$color_prompt" = yes ]; then
#    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
#else
#    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
#fi
#unset color_prompt force_color_prompt

command-line,bash,git,ubuntu

次佳解决办法

Ubuntu：在终端上显示您的分支名称

在〜/.bashrc文件中添加这些行

# Show git branch name
force_color_prompt=yes
color_prompt=yes
parse_git_branch() {
 git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}
if [ "$color_prompt" = yes ]; then
 PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[01;31m\]$(parse_git_branch)\[\033[00m\]\$ '
else
 PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w$(parse_git_branch)\$ '
fi
unset color_prompt force_color_prompt

使用以下命令重新加载.bashrc文件：

$ source ~/.bashrc

第三种解决办法

现在，我跟着这个https://gist.github.com/eliotsykes/47516b877f5a4f7cd52f并且正在工作，喜欢它到目前为止，虽然我打算进一步定制它。

In Terminal
mkdir ~/.bash 
Copy the raw git-prompt.sh file from git contrib in to the ~/.bash directory: https://github.com/git/git/blob/master/contrib/completion/git-prompt.sh

Inside ~/.bashrc or ~/.bash_profile (choose the file where you normally put any bash customizations/setup), add the lines:
source ~/.bash/git-prompt.sh # Show git branch name at command prompt export GIT_PS1_SHOWCOLORHINTS=true # Option for git-prompt.sh to show branch name in color  # Terminal Prompt: # Include git branch, use PROMPT_COMMAND (not PS1) to get color output (see git-prompt.sh for more) export PROMPT_COMMAND='__git_ps1 "\w" "\n\\\$ "' # Git branch (relies on git-prompt.sh) 
As long as you’re inside a git repo, your Bash prompt should now show the current git branch in color signifying if its got uncommitted changes.

第四种办法

转到主文件夹

单击Ctrl + h以显示隐藏文件。

打开。 bashrc文件并在最后粘贴下一个：

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\u@\h \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "

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参考资料

How do I show the git branch with colours in Bash prompt?