Zsh translation

gistfile1.sh

autoload -U colors
colors
setopt prompt_subst

parse_git_branch() {
  local state remote

  git rev-parse --git-dir &> /dev/null
  git_status="$(git status 2> /dev/null)"
  branch_pattern="# On branch ([[:alnum:]/]*)"
  remote_pattern="# Your branch is (.*) of"
  diverge_pattern="# Your branch and (.*) have diverged"
  if [[ ! ${git_status} =~ "working directory clean" ]]; then
    state="%{$fg[red]%}⚡"
  fi
  # add an else if or two here if you want to get more specific
  if [[ ${git_status} =~ ${remote_pattern} ]]; then
    if [[ ${match[1]} == "ahead" ]]; then
      remote="%{$fg[yellow]%}↑"
    else
      remote="%{$fg[yellow]%}↓"
    fi
  fi

  if [[ ${git_status} =~ ${diverge_pattern} ]]; then
    remote="%{$fg[yellow]%}↕"
  fi

  if [[ ${git_status} =~ ${branch_pattern} ]]; then
    branch=${match[1]}
    echo " (${branch})${remote}${state}"
  fi
}

PROMPT='${TITLEBAR}%{$fg[blue]%}[%{$fg[red]%}%~%{$fg[green]%}$(parse_git_branch)%{$fg[blue]%}] %(?.%{$reset_color%}.%{$fg[red]%})➔%{$reset_color%} '