Git prompt

git_prompt.sh

DEFAULT="\[\033[1;00m\]"
BLACK="\[\033[1;30m\]"
YELLOW="\[\033[1;33m\]"
GREEN="\[\033[1;32m\]"
WHITE="\[\033[1;37m\]"
BLUE="\[\033[1;36m\]"
# Returns "*" if the current git branch is dirty.
function parse_git_dirty {
  [[ $(git diff --shortstat 2> /dev/null | tail -n1) != "" ]] && echo "*"
}

# Returns "|shashed:N" where N is the number of stashed states (if any).
function parse_git_stash {
  local stash=`expr $(git stash list 2>/dev/null| wc -l)`
  if [ "$stash" != "0" ]
  then
    echo "|stashed:$stash"
  fi
}

# Get the current git branch name (if available)
git_prompt() {
  local ref=$(git symbolic-ref HEAD 2>/dev/null | cut -d'/' -f3)
  if [ "$ref" != "" ]
  then
    echo "($ref$(parse_git_dirty)$(parse_git_stash)) "
  fi
}
export PS1="[$GREEN\u:$YELLOW\w$DEFAULT]$BLUE \$(git_prompt)\$ $DEFAULT"