Don't run if git is dirty

check_git.sh

ITERATING=0
MASTER_ONLY=0
if [ $ITERATING -ne 1 ]
then
    git diff-index --quiet HEAD
    if [ $? -ne 0 ]
    then
        echo "!!! There are untracked changes. You must commit before running this script."
        echo "Will not allow running until you resolve the following files:"
        echo
        git diff-index HEAD
        echo
        echo "To commit these files, use the following command:"
        echo "git commit -m \"<Reason why you're committing>\" -a"
        echo
        exit 1
    fi

    if [[ "`git rev-parse --abbrev-ref HEAD`" != "master" && $MASTER_ONLY -eq 1 ]]
    then
        echo "!!! You are not on the master branch. You cannot run this cript unless you are on master"
        echo "To get to the master branch, use the following command:"
        echo "git checkout master"
        echo
        exit 1
    fi
fi