Colored prompt with git branch

bashrc.example

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
   # We have color support; assume it's compliant with Ecma-48
   # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
   # a case would tend to support setf rather than setaf.)
   color_prompt=yes
    else
   color_prompt=
    fi  
fi

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

if [ "$color_prompt" = yes ]; then
    PS1="${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\]\$ "
else
    PS1="${debian_chroot:+($debian_chroot)}\u@\h:\w\$(parse_git_branch)\$ "
fi
unset color_prompt force_color_prompt