rsync-deploy.sh

#!/bin/sh
#
# An update hook that deploys the master branch via rsync.
# Checks if the update is a commit on the master branch, then checks out the
# files to a temporary directory and rsyncs them up to the web-server.
#

# --- Command line
refname="$1"
oldrev="$2"
newrev="$3"

# --- Safety check
if [ -z "$GIT_DIR" ]; then
	echo "Don't run this script from the command line." >&2
	echo " (if you want, you could supply GIT_DIR then run" >&2
	echo "  $0 <ref> <oldrev> <newrev>)" >&2
	exit 1
fi

if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
	echo "usage: $0 <ref> <oldrev> <newrev>" >&2
	exit 1
fi

# --- Config
wwwpath=$(git config hooks.wwwpath)
keeptmpdir=$(git config --bool hooks.keeptmpdir)

# --- Check types
# if $newrev is 0000...0000, it's a commit to delete a ref.
zero="0000000000000000000000000000000000000000"
if [ "$newrev" = "$zero" ]; then
	newrev_type=delete
else
	newrev_type=$(git cat-file -t $newrev)
fi

if [[ "$refname","$newrev_type" == "refs/heads/master","commit" ]]; then
	if [[ -z $wwwpath ]]; then
		echo "Path to web server is empty (hooks.wwwpath)" 1>&2
		exit 1
	fi

	tmpdir=`mktemp -d`
	echo "building in $tmpdir" 1>&2

	git --work-tree=$tmpdir checkout --force $newrev >/dev/null
	if [[ $? -ne 0 ]]; then
		echo "failed checking out $newrev to $tmpdir" 1>&2
		exit 1
	fi

	set -e

	cd $tmpdir
	make
	chmod -R a+r build/*
	chown -R git:apache build/*
	rsync \
		--recursive \
		--perms \
		--times \
		--links \
		--verbose \
		--progress \
		--stats \
		--compress \
		--update \
		build/* \
		$wwwpath

	if [[ "$keeptmpdir" != "true" ]]; then
		cd
		rm -rf $tmpdir
	fi

fi

# --- Finished
exit 0