#!/bin/bash
#
# Copyright 2011 Saggi Mizrahi <smizrahi@redhat.com>
#
# Licensed to you under the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.  See the files README and
# LICENSE_GPL_v2 which accompany this distribution.
#

if [ -z $2 ]; then
	echo "usage: git request-review <gerrit-remote> <remote-branch>"
	exit 1
fi

git remote show $1 &> /dev/null
if [ $? -ne 0 ]; then
	echo "Remote '$1' is not configured"
	exit 1
fi


FETCH_REMOTE=`git remote show $1 | grep Fetch | awk {'print $3'}`

PUSH_REMOTE=`git remote show $1 | grep Push | awk {'print $3'}`

git fetch $FETCH_REMOTE refs/heads/$2 &> /dev/null
if [ $? -ne 0 ]; then
	echo "Problem fetching current head, please try manually"
	exit 1
fi

echo "Analyzing diff with upstream..."
TAGS=`git log --format="%d" $1/$2~..FETCH_HEAD`
if [ -z "$TAGS" ]; then
	echo "Remote HEAD doesn't seem to be a local branch, you are probably not rebased"
	while true; do
		read -p "Do you want to push patches anyway?" yn
			case $yn in
			[Yy]* ) break;;
			[Nn]* ) exit;;
			* ) echo "Please answer yes or no.";;
		esac
	done
fi

git --no-pager log --oneline --decorate FETCH_HEAD..HEAD
if [ $? -ne 0 ]; then
	echo "Branch is not rebased"
	exit 1
fi
while true; do
	read -p "Do you wish to send these patches for review?" yn
		case $yn in
		[Yy]* ) break;;
		[Nn]* ) exit;;
		* ) echo "Please answer yes or no.";;
	esac
done

echo "Sending patches for review..."
git push --force $PUSH_REMOTE HEAD:refs/for/$2