gistfile1.sh

source /etc/bash_completion.d/git-prompt
GIT_PS1_SHOWDIRTYSTATE='yes'

function git_dirty {
  # only tracks modifications, not unknown files needing adds
    if [ -z "`git status -s 2> /dev/null | awk '{print $1}' | grep '[ADMTU]'`" ] ; then
        return 1
    else
        return 0
    fi
}
function dirty_git_prompt {
    git_dirty && __git_ps1
}
function clean_git_prompt {
    git_dirty || __git_ps1
}

function git_prompt_if_dirty {
    if [[ "$1" =~ .*(\*|\+).* ]]; then
            echo "$1"
    fi
}

function git_prompt_if_clean {
    if [[ "$1" =~ .*(\*|\+).* ]]; then
            true
    else
            echo "$1"
    fi
}