Capistrano-like git deployment with symlinked release folders.

post-receive

#!/bin/bash -l

export RACK_ENV="production"
export RAILS_ENV="production"

APP_PATH=/var/www/townstage
CURRENT="$APP_PATH/releases/$(date +"%Y%m%d%H%M")"

exit_with_error() {
  echo "Error..."
  exit 1
}

mkdir $CURRENT
git archive master | tar -x -C $CURRENT || exit_with_error
cd $CURRENT

ln -nsf $APP_PATH/shared/config/database.yml config/database.yml || exit_with_error

ln -nsf $APP_PATH/shared/log log || exit_with_error
ln -nsf $APP_PATH/shared/public/assets public/assets || exit_with_error
ln -nsf $APP_PATH/shared/public/uploads public/uploads || exit_with_error
ln -nsf $APP_PATH/shared/vendor/bundle vendor/bundle || exit_with_error

bundle install --deployment --without development test || exit_with_error
bundle exec rake db:migrate || exit_with_error
bundle exec rake assets:precompile || exit_with_error
bundle exec whenever --write-crontab || exit_with_error

ln -nsf $CURRENT $APP_PATH/current

kill -USR2 $(cat $APP_PATH/shared/pids/unicorn.pid) || exit_with_err

echo -e "\nLadies and gentlemen, we have successfully deployed to Linode!\n\n"