#!/bin/bash
# This script is copyright Oz N Tiram <nahumoz@gmail.com>
# It is distributed under the terms of GPLv3

# To use this hook rename it to post-update
# Also you need the following software packages installed
#
#  * curl
#  * openssl
#
# EDIT THE FOLLOWING VARIABLES TO FIT YOUR NEEDS
# THE KEY SHOULD ALSO BE KNOWN ON THE SERVER THAT LISTENS TO SUBMITS
SECRET_KEY=MOO_RONJA_FOO
SUBMIT_HOST=127.0.0.1
SUBMIT_PORT=8080
GITURL="git@yourhost.domain:oz123/frank.git"
TO_SUBMIT="["
for HEAD in $@; do  
	# We love bash too, but there a really fancy basename 
	BRANCH=`basename $HEAD`
	# CUT, UNIX, No bash
	# BRANCH=$(echo $HEAD |cut -d / -f 3)
	# FUCK, BASHSIMS
	#echo $HEAD
	#IFS="/"
	#BRANCH=($HEAD)
	#BRANCH=${BRANCH[2]}
	REST_OF_JSON=$(git --no-pager log -n 1 --format='{"hashes":{"commit":"%H", "tree":"%T", "parents":"%P" }, "author":{"date": "%ai", "name":"%an", "email":"%ae" }, "committer":{"date": "%ci", "name": "%cn", "email":"%ce" }')
	REST_OF_JSON=$REST_OF_JSON,\"branch\":\""${BRANCH}"\",
	REST_OF_JSON=$REST_OF_JSON,\"giturl\":\"$GITURL\",
	JSON_TO_SUBMIT=$JSON_TO_SUBMIT{\"$BRANCH\":$REST_OF_JSON\}
	JSON_TO_SUBMIT=$JSON_TO_SUBMIT}
	REST_OF_JSON=""
	TO_SUBMIT=$TO_SUBMIT$JSON_TO_SUBMIT","
	JSON_TO_SUBMIT=""
done

# BASH sourcery to remove the last character
TO_SUBMIT=${TO_SUBMIT%?}"]"
all=`mktemp`
echo $TO_SUBMIT > $all
SECRET=$(echo -n $TO_SUBMIT | openssl dgst -sha1 -hmac $SECRET_KEY)
# Why does this produce a different digest?
# SECRET1=$(openssl dgst -sha1 -hmac $SECRET_KEY $all)
# echo $SECRET
# echo $SECRET1
SECRET=`echo $SECRET | cut -d'=' -f2`
set -x
curl -H "Content-Type: application/json" -H "X-Secret:${SECRET}" -X POST http://${SUBMIT_HOST}:${SUBMIT_PORT}/ --data @$all
if [ $? -eq 0 ]; then
   rm $all
fi