#!/usr/bin/env bash

BIN_DIR="$(dirname $0)"
ROOT_DIR="$BIN_DIR/.."

BRANCH=$(ruby -e '(branch = %x{git branch 2> /dev/null}[/\* (.+)$/, 1]) and print "#{branch}"')

ARG="$1"
REPO="${ARG:=$BRANCH}"

echo "Sync gh-pages with origin/$REPO"

cd "$ROOT_DIR"

git stash
git fetch
git co gh-pages
git reset --hard origin/$REPO
git push origin gh-pages -f
git co $BRANCH
git stash pop