force-push a dir to a git repo

force-push.sh

#!/usr/bin/env sh

if [ -z "$1" ] || [ -z "$2" ]; then
    echo "  WARN: the remote repo will be RESET completely"
    echo "  usage:"
    echo "    `basename $0` <DIR_NAME> <REPO_URI>"
    echo "    `basename $0` files/ https://github.com/your/repo.git"
    exit 1
fi

(
    cd $1
    if [ -e ".git" ]; then
        echo "a git repo already exists in dir '$1'"
        exit 1
    fi
    git init .
    git add .
    git commit -m 'rebase'
    git remote add origin $2
    git push -f origin master
    rm -rf .git
)