prompt with git branch and working directory

gistfile1.txt

## ~/git-ps1.rb
green = "\033[0;32m"
red   = "\033[0;31m"
base  = "\033[0;37m" # <-- Needs to be set to whatever your shell base colors is

current_branch = `git branch 2>/dev/null`.grep(/^\*/).first

if current_branch
  branch_name = current_branch.gsub(/^\*\s*/,'').strip
  color = branch_name  =~ /master/ ? green : red
  puts "#{color}[#{branch_name}]#{base}" unless current_branch.empty?
end

## ~/.ps
parse_git_branch() {
  ruby ~/git-ps1.rb 
}

export PS1="\n\w \$(parse_git_branch)\n$ "

## add this to ~/.bash_profile, ~/.bashrc, etc.
. ~/.ps


# git branch via http://www.furmanek.net/39/unix-prompt-for-usage-with-git/