Git hook used on my Digital Ocean droplet to deploy automatically my local Ghost installation (requires a local git repository in the droplet)

post-receive

#!/bin/sh
git --work-tree=/var/www/ghost --git-dir=/root/repository/ checkout -f
cd /var/www/ghost
chown -R ghost:ghost *
npm install --production

cd content/data
rm ghost.db
ln -s ghost-dev.db ghost.db

service ghost restart