#!/bin/bash
# Barret Rhoden (brho@cs.berkeley.edu)
# Copyright 2016 Google Inc
#
# Tracks a gerrit branch and runs checkpatch on the commits from the
# merge point of master to the tip of the branch.

PATCHDIR="${PATCHDIR:-../patches}"

usage()
{
	echo "$0 <gerrit-number> <local-branch-name>"
	exit -1
}

if [ $# -lt 2 ]
then
	usage
fi

if [ ! -f ./scripts/checkpatch.pl ]
then
	echo "Run from the root of the Akaros repo"
	exit -1
fi

git gerrit-track $1 $2

if [ $? -ne 0 ]
then
	exit -1
fi

FROM=`git merge-base master $2`

if [ $? -ne 0 ]
then
	echo "From failed; $FROM"
	exit -1
fi

ls $PATCHDIR/*.patch 2>/dev/null

if [ $? -eq 0 ]
then
	echo "$PATCHDIR has patches, remove and try again"
	exit -1
fi

git format-patch -k -M -N -o $PATCHDIR $FROM..$2

./scripts/checkpatch.pl $PATCHDIR/*