github.io-like Jekyll hook

post-receive

#!/bin/bash
# Note that this goes under your github bare repo /hooks/

work=$(mktemp -d)
out=/http/
jekyll=/usr/share/ruby/2.3.0/bin/jekyll

while read oldrev newrev refname
do
	branch=`echo $refname | cut -d/ -f3`
	if [ "$branch" == "master" ]; then
		GIT_WORK_TREE="$work" git checkout -f $branch
		$jekyll build -s "$work" -d "$out"
		find "$out" -type d -exec setfacl -m "g:http:r-x" {} +
		find "$out" -type f -exec setfacl -m "g:http:r--" {} +
	fi
done

rm -r "$work"