git pre-receive deploy hook

receiver.sh

#!/bin/bash
DEPLOY_DIR=/apps/myapp
SERVICE_NAME=myservice
NOW=$(date +"%Y%m%d%H%M%S")
mkdir -p $DEPLOY_DIR/releases/hotpush-$NOW && cat | tar -x -C $DEPLOY_DIR/releases/hotpush-$NOW
cp $DEPLOY_DIR/current/prod.env $DEPLOY_DIR/releases/hotpush-$NOW
(cd $DEPLOY_DIR/releases/hotpush-$NOW && npm install)
sudo chown -R node:deploy $DEPLOY_DIR/releases/hotpush-$NOW
sudo service $SERVICE_NAME stop
rm $DEPLOY_DIR/current
ln -s $DEPLOY_DIR/releases/hotpush-$NOW $DEPLOY_DIR/currenth
sudo chown node:deploy $DEPLOY_DIR/current
sudo service $SERVICE_NAME start