Bash Prompt - Success/Fail and Git Branch

.bash_profile

function parse_git_branch {
        git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ \[\1\]/'
}

function prompt {
        local DEFAULT="\[\033[0m\]"
        local RED="\[\033[0;31m\]"
        local GREEN="\[\033[0;32m\]"
        local BLUE="\[\033[0;34m\]"

        PS1="\`if [ \$? == '0' ]; then echo '$GREEN'; else echo '$RED'; fi\`\h:\W \u$BLUE\$(parse_git_branch)$DEFAULT\$ "
}

prompt