Bash prompt script that reflects the state of the git repository in the current directory by showing current branch name and several indicators. Add it to your .profile

gistfile1.sh

#  *  uncommitted changes
#  ^  stashed changes
#  >  ahead of origin
#  <  behind origin
#  ↕  diverged from origin

function parse_git_dirty {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}

function parse_git_stash {
  [[ $(git stash list 2> /dev/null | tail -n1) != "" ]] && echo "^"
}

function parse_git_ahead {
  [[ -n $(git status 2> /dev/null | grep 'Your branch is ahead of') ]] && echo ">"
}

function parse_git_behind {
  [[ -n $(git status 2> /dev/null | grep 'Your branch is behind') ]] && echo "<"
}

function parse_git_diverge {
  [[ -n $(git status 2> /dev/null | grep 'have diverged') ]] && echo "↕"
}

function current_git_branch {
  git rev-parse --abbrev-ref HEAD 2> /dev/null
}

function current_git_branch_with_markers {
  git rev-parse --abbrev-ref HEAD 2> /dev/null | sed -e "s/\(.*\)/\1$(parse_git_stash)$(parse_git_ahead)$(parse_git_behind)$(parse_git_diverge)$(parse_git_dirty)/"
}

function set_prompt {
  local  GREEN='\[\e[0;32m\]'
  local    RED='\[\e[0;31m\]'
  local NORMAL='\[\e[0m\]'

  PS1="$GREEN\w $RED(\$(current_git_branch_with_markers))$NORMAL $ "
}

set_prompt