#!/bin/bash -ue

if [ -z "${1:-}" ]; then
	# Missing parameters
	echo
	echo "  Usage: $(basename $0) <version>"
	echo
	echo '  Options:'
	echo '    <version>  MediaWiki version, e.g. "1.25"'
	echo
	exit 1
fi

remote='origin'
version=$1
git remote update $remote
git remote prune $remote
refs=`git for-each-ref --format='%(refname)' refs/remotes/${remote}/wmf/${version}wmf*`
branches=()
for ref in $refs; do
	branch=$(echo $ref | cut -d '/' -f 4-6)
	if git tag $branch $ref > /dev/null 2>&1; then
		echo "... created tag $branch"
	else
		echo "Could not (re)create tag $branch"
	fi
	# Remove branches after publishing tags in case user is
	# not authorised to publish forged tags in Gerrit.
	branches+=("$branch")
done
echo "... publishing tags"
git push $remote --tags
if [ -n "${branches:-}" ]; then
	for branch in "${branches[@]}"; do
		if git push $remote ":refs/heads/$branch" > /dev/null 2>&1; then
			echo "... removed branch $branch"
		else
			echo "Could not remove $branch"
		fi
	done
fi
git remote update $remote
git remote prune $remote