#!/bin/bash
set -euo pipefail

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ROOT_DIR="$(dirname "$SCRIPT_DIR")"
. "$ROOT_DIR/config.sh"

if [ -z "${1:-}" ]; then
	echo "Usage: $0 branch"
	exit 1
fi
branch=$1

git ls-remote --exit-code $SOURCE_REPO_URL $branch | cut -f 1