when a repo has a new commit, send email with code package

repo2email.sh

#!/bin/bash

# USAGE
# 1. clone / check out a repo to reponame/
# 2. execute once: echo 0 > reponame/repo2email.ver
# 3. if needed, create reponame/repo2email.prepare.sh script which will be called before packaging
# 4. set up crontab to execute: ./repo2email.sh 'reponame' 'svn' 'someone@example.com;another@example.com'

reponame=$1
repotype=$2
email=$3

if [ $repotype = 'svn' ]
then
	cd $reponame
	curver=`svn up | grep revision | sed -e 's/.*revision //' -e 's/\.//'`
	svn log -l 1 > ../$reponame.commit
	cd ..
fi

oldver=`cat $reponame/repo2email.ver`
if [ $oldver == $curver ]
then
	rm $reponame.commit
	exit
fi

echo $curver > $reponame/repo2email.ver

if [ -x $reponame/repo2email.prepare.sh ]
then
	cd $reponame
	./repo2email.prepare.sh
	cd ..
fi

tar czf ${reponame}_$curver.tar.gz $reponame

boundary=`echo $RANDOM | openssl md5`
(
	for to in `echo $email | tr ';' '\n'`
	do
		echo 'To: '$to
	done
	echo 'From: repo2email@'`hostname -f`
	echo 'MIME-Version: 1.0'
	echo 'Content-Type: multipart/mixed; boundary="'$boundary'"'
	echo 'Subject: repo '$reponame' commit '$curver
	echo ''
	echo '--'$boundary
	echo 'Content-Type: text/plain; charset="us-ascii"'
	echo ''
	cat $reponame.commit
	echo ''
	echo '--'$boundary
	echo 'Content-Type: application/x-gtar; name="'$reponame'_'$curver'.tar.gz"'
	echo 'Content-Transfer-Encoding: base64'
	echo ''
	base64 ${reponame}_$curver.tar.gz
	echo ''
) | /usr/sbin/sendmail -t

rm $reponame.commit ${reponame}_$curver.tar.gz