Display git branch in a shell

gistfile1.sh

# See unpushed commits
# git log --branches --not --remotes --simplify-by-decoration --decorate --oneline

# Comment in the above and uncomment this below for a color prompt
function parse_git_branch {
        ref=$(git symbolic-ref HEAD 2> /dev/null) || return
        echo "["${ref#refs/heads/}"]"
}

GREEN="\[\033[01;32m\]"
YELLOW="\[\033[0;33m\]"
WHITE="\[\033[00m\]"
BLUE="\[\033[01;34m\]"

PS1="${debian_chroot:+($debian_chroot)}$GREEN\u@\h$YELLOW\$(parse_git_branch)$WHITE:$BLUE\w$WHITE\\$ "