#!/bin/sh -e

cd "$(dirname "$(readlink -f "$0")")"
git rev-parse --is-inside-work-tree >/dev/null

upstream="$(git rev-parse --abbrev-ref "@{u}" 2>/dev/null || true)"
if [ -z "$upstream" ]; then
	echo "*** ERROR: No upstream is configured for current branch"
	exit 1
fi

echo "Going to reset current branch to: ${upstream}"
echo "*** WARNING: All local changes and commits will be lost!"

printf "\nExecute [Y,N]?"; read -r yn
if [ "$yn" = "${yn#[Yy]}" ]; then
    echo "Aborting reset..."
else
    git fetch --all
    git reset --hard "$upstream"
    echo "Done."
fi

exit 0