#!/bin/bash

usage() {
	echo "Usage: $0 [OPTIONS]"
	echo "  -a,  --server-url   server url (default is gitlab)."
	echo "  -H,  --db-host      database hostname (default is localhost)."
	echo "  -d,  --db-name      database name (default is redmine)."
	echo "  -u,  --db-user      database username (default is root)."
	echo "  -p,  --db-passwd    database user password (default is no password)."
	echo "  -I   --db-init      initialize the database (resets any existing data in the database)"
	echo "  -h,  --help         print this help."
	exit 1
}

SERVER_URL="gitlab"
DB_NAME="localhost"
DB_NAME="gitlabhq_production"
DB_USER="root"
DB_PASSWD=""
DB_INIT="no"

ARGS=$(getopt -o a:H:d:u:p:Ih -l "server-url:,db-host:,db-name:,db-user:,db-passwd:,db-init,help" -n "$0" -- "$@")
if [ $? -ne 0 ]; then
	exit 1
fi

eval set -- "$ARGS"
while true; do
	case "$1" in
		-a|--server-url)
			shift
			SERVER_URL="${1}"
			shift			;;
		-H|--db-host)
			shift
			DB_HOST="${1}"
			shift
			;;
		-d|--db-name)
			shift
			DB_NAME="${1}"
			shift
			;;
		-u|--db-user)
			shift
			DB_USER="${1}"
			shift
			;;
		-p|--db-passwd)
			shift
			DB_PASSWD="${1}"
			shift
			;;
		-I|--db-init)
			shift
			DB_INIT="yes"
			;;
		-h|--help)
			shift
			usage
			;;
		--)
			shift
			break
			;;
	esac
done

# start mysql server if ${DB_HOST} is localhost
if [ -z "${DB_HOST}" ] || [ "${DB_HOST}" == "localhost" ]; then
	DB_HOST="localhost"
	DB_USER="root"
	DB_PASSWD=""
	DB_INIT="yes"

	mysql_install_db --user=mysql
	/usr/bin/mysqld_safe &
	sleep 3

	echo 'CREATE DATABASE IF NOT EXISTS `gitlabhq_production` DEFAULT CHARACTER SET `utf8` COLLATE `utf8_unicode_ci`;' | mysql -uroot
	echo 'GRANT SELECT, LOCK TABLES, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER ON `gitlabhq_production`.* TO 'root'@'localhost';' | mysql -uroot
fi

# start ssh server
/usr/sbin/sshd
redis-server > /dev/null &
sleep 3

# configure git for the 'git' user
sudo -u git -H git config --global user.name "GitLab"
sudo -u git -H git config --global user.email "gitlab@localhost"
sudo -u git -H git config --global core.autocrlf input

# configure server url
# sudo -u git -H sed 's/http:\/\/localhost/http:\/\/'${SERVER_URL}'/' -i /home/git/gitlab-shell/config.yml
sudo -u git -H sed 's/host: localhost/host: '${SERVER_URL}'/' -i /home/git/gitlab/config/gitlab.yml

# configure database
sudo -u git -H sed 's/{{DB_HOST}}/'${DB_HOST}'/' -i /home/git/gitlab/config/database.yml
sudo -u git -H sed 's/{{DB_NAME}}/'${DB_NAME}'/' -i /home/git/gitlab/config/database.yml
sudo -u git -H sed 's/{{DB_USER}}/'${DB_USER}'/' -i /home/git/gitlab/config/database.yml
sudo -u git -H sed 's/{{DB_PASSWD}}/'${DB_PASSWD}'/' -i /home/git/gitlab/config/database.yml

# make sure /home/git/repositories/ has the right permissions in case it is mounted as a volume.
sudo chmod ug+rwX,o-rwx /home/git/repositories/
sudo chmod ug-s /home/git/repositories/
find /home/git/repositories/ -type d -print0 | sudo xargs -0 chmod g+s
chown git:git /home/git/repositories

# make sure /home/git/.ssh/ has the right permissions in case it is mounted as a volume.
touch /home/git/.ssh/authorized_keys
chmod 700 /home/git/.ssh
chmod 600 /home/git/.ssh/authorized_keys
chown -R git:git /home/git/.ssh

cd /home/git/gitlab/

# reset the database if the --db-init switch was given.
if [ "$DB_INIT" == "yes" ]; then
	sudo -u git -H force=yes bundle exec rake gitlab:setup RAILS_ENV=production
fi

# start the gitlab application
# sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production
/etc/init.d/gitlab start
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

# start the nginx server
/etc/init.d/nginx start

# kickstart the rails application
wget "http://localhost" -O /dev/null

# watch the access logs
tail -F /var/log/nginx/gitlab_access.log