bashcompletion

function _git_prompt() {
local git_status="`git status -unormal 2>&1`"
if ! [[ "$git_status" =~ not\ a\ git\ repo ]]; then
    if [[ "$git_status" =~ nothing\ to\ commit ]]; then
        local ansi=42
    elif [[ "$git_status" =~ nothing\ added\ to\ commit\ but\ untracked\ files\ present ]]; then
        local ansi=43
    else
        local ansi=45
    fi
    if [[ "$git_status" =~ on\ branch\ ([^[:space:]]+) ]]; then
        branch=${bash_rematch[1]}
        test "$branch" != master || branch=' '
    else
        # detached head.  (branch=head is a faster alternative.)
        branch="(`git describe --all --contains --abbrev=4 head 2> /dev/null ||
            echo head`)"
    fi
    echo -n '\[\e[0;37;'"$ansi"';1m\]'"$branch"'\[\e[0m\] '
fi
                                                                                                                                                                                    }
                                                                                                                                                                                    function _prompt_command() {
                                                                                                                                                                                    ps1="`_git_prompt`"'\[\e[1;34m\]\w \$\[\e[0m\] '
                                                                                                                                                                                }
                                                                                                                                                                                prompt_command=_prompt_command