git_prompt_info() {
   branch=$(git symbolic-ref HEAD 2> /dev/null) || return
   git_status="$(git status 2> /dev/null)"
   state=""
   case $git_status in
     *Changed\ but\ not\ updated*)
       state="%{$fg[red]%}⚡"
     ;;;
     *Untracked\ files*)
       state="%{$fg[red]%}⚡"
     ;;;
   esac
   
   remote=""
   case $git_status in
     *Your\ branch\ is\ ahead*)
       remote="%{$fg[yellow]%}↑"
     ;;;
     
     *Your\ branch\ is\ behind*)
       remote="%{$fg[yellow]%}↓"
     ;;;
     
     "Your branch and")
       remote="%{$fg[yellow]%}"
     ;;;
   esac
   echo " %{$fg[yellow]%}(${branch#refs/heads/})${remote}${state}"
 }
 
 function oh_my_zsh_theme_precmd() {
   local previous_return_value=$?;
   prompt="%{$fg[light_gray]%}%c%{$fg[yellow]%}$(git_prompt_info)%{$fg[white]%}"
   if test $previous_return_value -eq 0
   then
     export PROMPT="%{$fg[green]%}➜  %{$fg[white]%}${prompt}%{$fg[green]%} $%{$fg[white]%} "
   else
     export PROMPT="%{$fg[red]%}➜  %{$fg[white]%}${prompt}%{$fg[red]%} $%{$fg[white]%} "
   fi
 }