Git hook to publish a la Jekyll

post-receive

#!/usr/bin/env sh
# post-receive -  build the site after a push
# TODO: a pre-something hook to check if it would build.
# TODO: change this hook to checking if the produced markup is valid.

# more or less the hook from http://jekyllrb.com/docs/deployment-methods/

REPO=/var/www/repos/my-site.git
TEMP=`mktemp -dt site-XXXXXX`
SITE=/var/www/my-site

(cd ${REPO} && git archive HEAD) | TAPE=- tar -xC ${TEMP}
jekyll build -s ${TEMP} -d ${SITE}
rm -rf ${TEMP}
exit 0