Git bare repo post-receive hook for automatic deploy

post-receive.sh

#!/bin/sh

while read oldrev newrev refname
do	
    #echo post-receive: $oldrev $newrev $refname >> ~/post-receive.log

    if [ "$oldrev" != "$newrev"  ]; then	
	branch=$(git rev-parse --symbolic --abbrev-ref $refname)
	if [ "master" == "$branch" ]; then
		echo Deploying $branch branch to production
		ssh -i ~/.ssh/gitbot.id_rsa gitbot@production-host.example.com "~/pull-repo-script.sh"
		# don't forget to add id_rsa.pub to /home/gitbot/.ssh/authorized_keys at production-host.example.com
	elif [ "develop" == "$branch" ]; then
		echo Deploying $branch branch to webarm-dev
                ssh -i ~/.ssh/gitbot.id_rsa gitbot@development-host.example.com "~/pull-repo-script.sh"
		# don't forget to add id_rsa.pub to /home/gitbot/.ssh/authorized_keys at development-host.example.com
	else 
		echo "Branch $branch is not deployable"
	fi
    fi;
done