#!/bin/bash
#
# This script updates the license headers of Java files to extend the copyright year to given date and commits those using the given message to all branches listed
USAGE="$0 <year> <commit message> <branches...>"
if [ $# -lt 1 ]; then echo -e "ERROR: Year required. \n$USAGE" >&2; exit 1; fi
if [ $# -lt 2 ]; then echo -e "ERROR: Commit message required.\n$USAGE" >&2; exit 1; fi
if [ $# -lt 3 ]; then echo -e "ERROR: At least one branch required.\n$USAGE" >&2; exit 1; fi

YEAR="$1"
MESSAGE="$2"
shift 2

git fetch

PUSHSPEC=""
for branch in "$@"
do
	echo "Processing branch $branch"
		git checkout $branch
		git rebase origin/$branch
		update-license-headers.sh $YEAR
		git add *.java
		git commit -m "$MESSAGE"
		PUSHSPEC="${PUSHSPEC} $branch"
done

echo pushing $PUSHSPEC