#!/bin/bash
set -e

GITLAB_VERSION=6.7.5
SHELL_VERSION=1.9.1

# add git user
adduser --disabled-login --gecos 'GitLab' git

sudo -u git -H mkdir -p /home/git/data/.ssh
sudo -u git -H ln -s /home/git/data/.ssh /home/git/.ssh

# create the data store
sudo -u git -H mkdir -p /home/git/data

# install gitlab-shell, use local copy if available
sudo -u git -H mkdir -p /home/git/gitlab-shell
if [ -f /app/setup/gitlab-shell-${SHELL_VERSION}.tar.gz ]; then
  sudo -u git -H tar -zvxf /app/setup/gitlab-shell-${SHELL_VERSION}.tar.gz --strip=1 -C /home/git/gitlab-shell/
else
  wget "https://github.com/gitlabhq/gitlab-shell/archive/v${SHELL_VERSION}.tar.gz" -O - | tar -zvxf - --strip=1 -C /home/git/gitlab-shell/
  chown -R git:git /home/git/gitlab-shell/
fi

cd /home/git/gitlab-shell
sudo -u git -H cp -a config.yml.example config.yml
sudo -u git -H ./bin/install

# install gitlab, use local copy if available
sudo -u git -H mkdir -p /home/git/gitlab
if [ -f /app/setup/gitlabhq-${GITLAB_VERSION}.tar.gz ]; then
  sudo -u git -H tar -zvxf /app/setup/gitlabhq-${GITLAB_VERSION}.tar.gz --strip=1 -C /home/git/gitlab/
else
  wget "https://github.com/gitlabhq/gitlabhq/archive/v${GITLAB_VERSION}.tar.gz" -O - | tar -zvxf - --strip=1 -C /home/git/gitlab/
  chown -R git:git /home/git/gitlab/
fi
cd /home/git/gitlab

# copy default configurations
cp lib/support/nginx/gitlab /etc/nginx/sites-available/gitlab
sudo -u git -H cp config/gitlab.yml.example config/gitlab.yml
sudo -u git -H cp config/resque.yml.example config/resque.yml
sudo -u git -H cp config/database.yml.mysql config/database.yml
sudo -u git -H cp config/unicorn.rb.example config/unicorn.rb
sudo -u git -H cp config/initializers/rack_attack.rb.example config/initializers/rack_attack.rb
sudo -u git -H cp config/initializers/smtp_settings.rb.sample config/initializers/smtp_settings.rb

# create required tmp and log directories
sudo -u git -H mkdir -p tmp/pids/ tmp/sockets/
chmod -R u+rwX log tmp

# create symlink to uploads directory
sudo -u git -H ln -s /home/git/data/uploads public/uploads

# create symlink to backups directory
sudo -u git -H ln -s /home/git/data/backups tmp/backups

# create production log
sudo -u git -H touch log/production.log

# install gems required by gitlab, use local cache if available
if [ -d "/app/setup/cache" ]; then
  # offline gem installation
  mv /app/setup/cache vendor/
  chown -R git:git vendor/cache
  sudo -u git -H bundle install --local --deployment --without development test aws
else
  # online gem installation
  sudo -u git -H bundle install --deployment --without development test aws
fi

# make sure everything in /home/git is owned by the git user
chown -R git:git /home/git/

# install gitlab bootscript
cp lib/support/init.d/gitlab /etc/init.d/gitlab
chmod +x /etc/init.d/gitlab

# install logrotate configuration
cp lib/support/logrotate/gitlab /etc/logrotate.d/gitlab

# copy nginx configuration
ln -s /etc/nginx/sites-available/gitlab /etc/nginx/sites-enabled/gitlab

# configure supervisord to start nginx
echo "daemon off;" >> /etc/nginx/nginx.conf
cat > /etc/supervisor/conf.d/nginx.conf <<EOF
[program:nginx]
priority=20
directory=/tmp
command=/usr/sbin/nginx
user=root
autostart=false
autorestart=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log
EOF

# configure supervisord to start mysql (manual)
cat > /etc/supervisor/conf.d/mysqld.conf <<EOF
[program:mysqld]
priority=20
directory=/tmp
command=/usr/bin/mysqld_safe
user=root
autostart=false
autorestart=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log
EOF

# configure supervisord to start redis (manual)
sed 's/daemonize yes/daemonize no/' -i /etc/redis/redis.conf
cat > /etc/supervisor/conf.d/redis-server.conf <<EOF
[program:redis-server]
priority=20
directory=/tmp
command=/usr/bin/redis-server /etc/redis/redis.conf
user=redis
autostart=false
autorestart=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log
EOF