git repo branch at PS1

# Setup some colors to use later in interactive shell or scripts
export COLOR_NC='\e[0m' # No Color
export COLOR_WHITE='\e[1;37m'
export COLOR_BLACK='\e[0;30m'
export COLOR_BLUE='\e[0;34m'
export COLOR_LIGHT_BLUE='\e[1;34m'
export COLOR_GREEN='\e[0;32m'
export COLOR_LIGHT_GREEN='\e[1;32m'
export COLOR_CYAN='\e[0;36m'
export COLOR_LIGHT_CYAN='\e[1;36m'
export COLOR_RED='\e[0;31m'
export COLOR_LIGHT_RED='\e[1;31m'
export COLOR_PURPLE='\e[0;35m'
export COLOR_LIGHT_PURPLE='\e[1;35m'
export COLOR_BROWN='\e[0;33m'
export COLOR_YELLOW='\e[1;33m'
export COLOR_GRAY='\e[1;30m'
export COLOR_LIGHT_GRAY='\e[0;37m'
alias colorslist="set | egrep 'COLOR_\w*'"  # Lists all the colors, uses vars in .bashrc_non-interactive

if [ `which git` ]; then
    # While within git repository, indicate current branch
    parse_git_branch() {
        git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1) /'
    }
    export PS1="$PS1\[${COLOR_YELLOW}\]\$(parse_git_branch)\[${COLOR_NC}\]"
fi