That is a Gitolite post-receive Hook Script that can Optional upload the Repository to an FTP Server or copy it to an Directory, more Features are following.

post-receive

#!/bin/bash

# General Settings
REPONAME='example.git'
BRANCH='public' # Branch you want to be public
MODE='FTP' # 'FTP' = Upload to FTP Server / 'DIRECTORY' = Copy to Directory.

# DIRECTORY MODE SECTION
DIRECTORY='/var/www/'
EXCLUDELIST_DIR='' # Do '--exclude=Folder1 --exlude=Folder2'
# FTP MODE SECTION
HOST='example.com'
USER='example'
PASSWD='example'
EXCLUDELIST_FTP='' # Do '--exclude Folder 1/ --exlude Folder2/'

echo Check Environment and load up Prerequierements
if [ ! -d "~/.tmp_gitolite"]
	then
	mkdir ~/.tmp_gitolite
	cd ~/.tmp_gitolite
	git clone -b $BRANCH ~/repositories/$REPONAME
	fi
echo Get old Commit Hash
cd ~/.tmp_gitolite/$REPONAME/.git
OLD=$(git rev-parse HEAD)
echo $OLD

echo Get new Commit Hash
cd ~/repositories/$REPONAME
NEW=$(git rev-parse $BRANCH)
echo $NEW

echo Compare Commit Hashes
if [ $OLD != $NEW ]
then
	echo Found new Version
	cd ~/.tmp_gitolite/$REPONAME
	echo Get latest files from Git Repo Public Branch
	git checkout $BRANCH
	git pull ~/repositories/$REPONAME
		if [ $MODE == "FTP"]
		then
			echo Connecting to FTP Site and Transmitting....
			cd ~/.tmp_gitolite/$REPONAME
			lftp -u $USER,$PASSWD $HOST << EOF
			mirror $EXCLUDELIST -Renvp
			chmod -r 777 /
			quit 0
EOF
			echo Finished transmitting
		elif [ $MODE = "DIRECTORY"]
		then
			echo Copying to specified Directory
			rsync -avP ~/.tmp_gitolite/$REPONAME/* $DIRECTORY $EXCLUDELIST
		fi
else
	echo No changes
	echo quit
fi