Git branch and dirty state (using git-completion.bash) and colored

.bashrc

#   [ ~/develop/dir ] master $   # clean working directory
#   [ ~/develop/dir ] master* $  # dirty working directory
#   [ ~/some_dir ] $             # not a git repo

source ~/bin/.git-completion.sh	  # Copied the contrib/completion/git-completion.bash file in the git distribution
function parse_git_dirty {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}

PS1='\e[0m[ \e[32m\w\e[0m ]$(__git_ps1 " \e[33m%s\e[31m$(parse_git_dirty)\e[0m") $ '