Shell Prompt with GIT branch label

.bash_login

# Custom prompt with GIT branch label
function parse_git_branch () {
    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

RED="\[\033[0;31m\]"
YELLOW="\[\033[0;33m\]"
GREEN="\[\033[0;32m\]"
NO_COLOUR="\[\033[0m\]"

PS1="$GREEN\u@\h$NO_COLOUR:\w$YELLOW\$(parse_git_branch)$NO_COLOUR\$ "