#!/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
# Take a look also in the companion config file 
# post-push.conf, you should edit it before using this hook
#
#  * curl
#  * openssl
#
# you can control the script by editing post-update.conf

# ~~~ HERE BE DRAGONS ! ~~~ 

source ./hooks/post-update.conf

TO_SUBMIT="["

for HEAD in $@; do  
	# We love bash too, but there a really fancy basename 
	BRANCH=`basename $HEAD`
	REST_OF_JSON=$(git --no-pager log -n 1 --format='{"branch": "XXXBRANCHXXX", "ssh_url": "XXXSSH_URLXXX", "hashes":{"commit":"%H", "tree":"%T", "parents":"%P"},"author":{"date":"%ai","name":"%an","email":"%ae"},"committer":{"date":"%ci","name":"%cn","email":"%ce"},"repository":{"name":"XXXREPO_NAMEXXX"}}')
        REST_OF_JSON=${REST_OF_JSON/XXXBRANCHXXX/${BRANCH}}
        REST_OF_JSON=${REST_OF_JSON/XXXSSH_URLXXX/${SSH_URL}}
        REST_OF_JSON=${REST_OF_JSON/XXXREPO_NAMEXXX/${REPO_NAME}}
	JSON_TO_SUBMIT=$REST_OF_JSON
	TO_SUBMIT=$TO_SUBMIT$JSON_TO_SUBMIT","
	JSON_TO_SUBMIT=""
done

# BASH sorcery 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)
SECRET=`echo $SECRET | cut -d'=' -f2`
curl -H "Content-Type: application/json" -H "${SECRET_KEY_NAME}:${SECRET}" \
	-X POST http://${SUBMIT_HOST}:${SUBMIT_PORT}/ --data @$all
if [ $? -eq 0 ]; then
   rm $all
fi