This git hook is copying the prod branch to prod dir and dev branch to dev dir. Makes it easy to deploy.

post-receive

#!/bin/bash

echo "-- running post receive --";

while read oldrev newrev ref
do
    if [[ $ref =~ .*/dev$ ]];
    then
        git --work-tree=/var/www/html/dev --git-dir=/home/git/ checkout dev -f
    fi

    if [[ $ref =~ .*/prod$ ]];
    then
        git --work-tree=/var/www/html/prod --git-dir=/home/git/ checkout prod -f
    fi
done