#!/bin/env bash

if [[ -f "$PWD/.git/config" ]] && [[ $1 != "" ]]; then
    UPSTREAM_REPO_URL=$1
    git remote --verbose add upstream $UPSTREAM_REPO_URL || git remote --verbose set-url upstream $UPSTREAM_REPO_URL
    git fetch --all
elif [[ ! -f "$PWD/.git/config" ]]; then
    echo "Is this an git repository? I doubt." && exit 1
else
    echo "Usage: ${0} <git-url>"
fi