Question

我在OsX上自定义我的bash提示符，包括git branch以及分支状态的一些标记。这打破了换行。

我知道I have to add \[ and \] to prevent this issue，但在函数中这样做会显示\ [和\] litteraly。

我可以做些什么来逃避这些功能中的序列？

免责声明：这是我第一次尝试使用bash脚本。

function parse_git_dirty {
  # TODO make git status response a variable
  # [branch+] : working dir has staged changes
  if [[ $(git status 2> /dev/null | grep "to be committed") ]]
  then S=$S"$(tput setaf 2)+$(tput sgr0)"
  fi
  # [branch+] : working dir has unstaged changes
  if [[ $(git status 2> /dev/null | grep "not staged for commit") ]]
  then S=$S"$(tput setaf 1)+$(tput sgr0)"
  fi
  # [branch+] : working dir has untracked files
  if [[ $(git status 2> /dev/null | grep "tracked files") ]]
  then S=$S"$(tput setaf 1)+$(tput sgr0)"
  fi
  # [branch<] : local branch is behind origin
  if [[ $(git status 2> /dev/null | grep "Your branch is behind") ]]
  then S=$S"$(tput setaf 5)<$(tput sgr0)"
  fi
  # [branch>] : local branch is ahead origin
  if [[ $(git status 2> /dev/null | grep "branch is ahead of") ]]
  then S=$S"$(tput setaf 5)>$(tput sgr0)"
  fi
  # [branch<>] : branches have diverged
  if [[ $(git status 2> /dev/null | grep "have diverged") ]]
  then S=$S"$(tput setaf 5)<>$(tput sgr0)"
  fi
  echo $S
}
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}
function show_git_branch {
  if [[ $(parse_git_branch) ]]
  then echo "$(tput setaf 2)($(tput sgr0)$(parse_git_branch)$(parse_git_dirty)$(tput setaf 2))$(tput sgr0)"
  fi
}
export PS1="\u\[$(tput setaf 2)\]@\[$(tput sgr0)\]\h\[$(tput setaf 2)\]:\[$(tput sgr0)\]\W\[\$(show_git_branch)\] "

Answer 1

我很高兴听到您已经解决了您的版本问题，但我认为值得指出git已经通过一个名为__git_ps1的有用且经过深思熟虑的bash函数分发，您可以包含在PS1中。例如，您可以像这样使用它：

 export PS1='blah blah blah$(__git_ps1 " (%s)") '

如果您不在git存储库中，$(__git_ps1 " (%s)")将变为空字符串。但是，如果您是，那么将使用格式字符串。这通常会显示您当前的分支，但是如果您正处于合并或者将会显示的rebase的中间。

默认情况下，__git_ps1不会显示树是否为脏或者有未跟踪的文件，因为在某些存储库中，这可能会使您的bash提示出现非常缓慢。但是，如果您还想查看此信息，则会将GIT_PS1_SHOWDIRTYSTATE或GIT_PS1_SHOWUNTRACKEDFILES设置为非空的内容时显示。

您可以在git-completion.sh source file。

的顶部找到更多信息

Answer 2

您需要在分配值中使用单引号：

export PS1='\u\[$(tput setaf 2)\]@\[$(tput sgr0)\]\h\[$(tput setaf 2)\]:\[$(tput sgr0)\]\W\[$(show_git_branch)\] '

由于在发出提示时会评估内容，因此您不需要像在其他情况下那样使用双引号。

Answer 3

感谢Dennis，更正的代码是：

function parse_git_dirty {
  # TODO make git status response a variable
  # [branch+] : working dir has staged changes
  if [[ $(git status 2> /dev/null | grep "to be committed") ]]
  then S=$S"$(tput setaf 2)+$(tput sgr0)"
  fi
  # [branch+] : working dir has unstaged changes
  if [[ $(git status 2> /dev/null | grep "not staged for commit") ]]
  then S=$S"$(tput setaf 1)+$(tput sgr0)"
  fi
  # [branch+] : working dir has untracked files
  if [[ $(git status 2> /dev/null | grep "tracked files") ]]
  then S=$S"$(tput setaf 1)+$(tput sgr0)"
  fi
  # [branch<] : local branch is behind origin
  if [[ $(git status 2> /dev/null | grep "Your branch is behind") ]]
  then S=$S"$(tput setaf 5)<$(tput sgr0)"
  fi
  # [branch>] : local branch is ahead origin
  if [[ $(git status 2> /dev/null | grep "branch is ahead of") ]]
  then S=$S"$(tput setaf 5)>$(tput sgr0)"
  fi
  # [branch<>] : branches have diverged
  if [[ $(git status 2> /dev/null | grep "have diverged") ]]
  then S=$S"$(tput setaf 5)<>$(tput sgr0)"
  fi
  echo $S
}
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'
}
function show_git_branch {
  if [[ $(parse_git_branch) ]]
  then echo "$(tput setaf 2)($(tput sgr0)$(parse_git_branch)$(parse_git_dirty)$(tput setaf 2))$(tput sgr0)"
  fi
}
export PS1='\u\[$(tput setaf 2)\]@\[$(tput sgr0)\]\h\[$(tput setaf 2)\]:\[$(tput sgr0)\]\W\[$(show_git_branch)\] '

破碎的bash提示换行

3 个答案: