Upgrading source installation of gitlab in one script

gitlab_upgrade.sh

#!/bin/bash

set -e

version="v8.15.1"

systemctl stop gitlab
cd /home/git/gitlab

echo Stash
sudo -u git -H git stash

echo Fetch
sudo -u git -H git fetch

echo Checkout ${version}
sudo -u git -H git checkout ${version}

echo Update gitlab-shell
(
	cd /home/git/gitlab-shell
	sudo -u git -H git fetch
	sudo -u git -H git checkout v$(cat /home/git/gitlab/GITLAB_SHELL_VERSION)
)
echo Update gitlab-workhorse
(
	cd /home/git/gitlab-workhorse
	sudo -u git -H git fetch
	sudo -u git -H git checkout v$(cat /home/git/gitlab/GITLAB_WORKHORSE_VERSION)
)

echo "Build deps (bundle)"
gem install bundler
sudo -u git -H bundle

echo DB Migrations
sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

echo Clean assets
sudo -u git -H bundle exec rake assets:clean RAILS_ENV=production

echo Build assets
sudo -u git -H bundle exec rake assets:clean assets:precompile RAILS_ENV=production

echo Clean cache
sudo -u git -H bundle exec rake cache:clear RAILS_ENV=production

echo Install new init
cd /home/git/gitlab
cp lib/support/init.d/gitlab /etc/init.d/gitlab
systemctl daemon-reload

echo Restart gitlab
systemctl start gitlab

echo Checking installation
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production