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# Usage:
#  up;
#
# Description:
#  Brings you either up to the root of you git project or to your home folder.

up() {
    CHECK=$1;
    UP_PWD=$PWD;

    echo $PWD;

    [ -z $C ] && CHECK="lib";

    while echo -n ""; do
        cd ..;
        ls .git    &>/dev/null && break;
        ls  README &>/dev/null && break;
        [ $PWD = $HOME ]       && break;
        [ $PWD = "/" ]         && break;
    done

    OLDPWD=$UP_PWD;
    echo $PWD;

    return 0;
}

# Usage:
#  back;
#
# Description:
#  Lets you jump back to where you last did `up` from.

back() {
    if [ $UP_PWD == $PWD ]; then
        cd -;
    else
        echo $UP_PWD;
        cd $UP_PWD;
    fi

    return $?;
}

# Usage:
#  username;
#
# Description:
#  prints out either "username@hostname" or just "hostname" without newline.

username() {
    SHORT_HOST=$(hostname | cut -d"." -f1);

    if [[ $USER == "__my-user-name__" ]]; then
        echo -n $SHORT_HOST;
    else
        echo -n $USER@$SHORT_HOST;
    fi
}

# Usage:
#  path_info;
#
# Description:
#  Prints out either "$PWD" or "project-name/branch-name/relative-path"
#  without newline.

path_info() {
    BRANCH=$(git branch --no-color 2>/dev/null | grep "*" | cut -d" " -f2 );

    if [[ "x$BRANCH" == "x" ]]; then
        echo -n $PWD;
    else
        REPO=$PWD;
        NOTHING="nothing to commit (working directory clean)";
        CLEAN=$(git status 2>/dev/null | tail -n1);
        FLAG="";

        while [[ $(echo $REPO | wc -c) -gt 2 ]]; do
            [ -e $REPO/.git ] && break;
            REPO=$(dirname $REPO);
        done

        if [[ $NOTHING != $CLEAN ]]; then
            FLAG="*";
        fi

        DIR=$(echo $PWD | sed -e "s,$REPO,,");
        REPO=$(basename $REPO);

        echo -n "$REPO/$FLAG$BRANCH$DIR";
    fi
}

UP_PWD=$PWD;
HISTCONTROL="ignoredups ignoreboth";
PS1='\[$(tput bold)\]$(username)\[$(tput sgr0)\] $(path_info)\$ ';

shopt -s checkwinsize