git_info_for_prompt

local g="$(git rev-parse --git-dir 2>/dev/null)"
if [ -n "$g" ]; then
  local r
  local b
  if [ -d "$g/../.dotest" ]
  then
    if test -f "$g/../.dotest/rebasing"
    then
      r="|REBASE"
    elif test -f "$g/../.dotest/applying"
    then
      r="|AM"
    else
      r="|AM/REBASE"
    fi
    b="$(git symbolic-ref HEAD 2>/dev/null)"
  elif [ -f "$g/.dotest-merge/interactive" ]
  then
    r="|REBASE-i"
    b="$(cat "$g/.dotest-merge/head-name")"
  elif [ -d "$g/.dotest-merge" ]
  then
    r="|REBASE-m"
    b="$(cat "$g/.dotest-merge/head-name")"
  elif [ -f "$g/MERGE_HEAD" ]
  then
    r="|MERGING"
    b="$(git symbolic-ref HEAD 2>/dev/null)"
  else
    if [ -f "$g/BISECT_LOG" ]
    then
      r="|BISECTING"
    fi
    if ! b="$(git symbolic-ref HEAD 2>/dev/null)"
    then
      if ! b="tag: $(git describe --exact-match HEAD 2>/dev/null)"
      then
        b="$(cut -c1-7 "$g/HEAD")..."
      fi
    fi
  fi
 
  if [ -n "$1" ]; then
    printf "$1" "%{$fg_bold[green]%}${b##refs/heads/}$r%{$reset_color%}"
  else
    printf "[%s]" "%{$fg_bold[green]%}${b##refs/heads/}$r%{$reset_color%}"
  fi
fi