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

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

usage()
{
	echo "$0 <remote>/<branch> [<url>]"
	exit -1
}

if [ $# -lt 1 ]
then
	usage
fi

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

REMOTE=`echo $1 | cut -f 1 -d '/'`
TO=`echo $1 | cut -f 2- -d '/'`

git track $REMOTE/$TO $2

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

FROM=`git merge-base master $REMOTE/$TO`

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 $FROM..$REMOTE/$TO

./scripts/checkpatch.pl $PATCHDIR/*