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# OS staff: Setting Deploy key.
if is_project_from_git && [[ ! -z $DEPLOY_KEY ]]; then

  juju-log "Write the deploy ssh key."
  echo "$DEPLOY_KEY" > /home/ubuntu/.ssh/deploy_key
  chown ubuntu:ubuntu /home/ubuntu/.ssh/deploy_key
  chmod 400 /home/ubuntu/.ssh/deploy_key

  if [[ ! -f /usr/bin/git-wrapped ]]; then
    wget https://raw2.github.com/sebas5384/utils/master/bin/git.sh
    mv git.sh /usr/bin/git-wrapped
    chmod +x /usr/bin/git-wrapped
  fi

elif [[ -f /home/ubuntu/.ssh/deploy_key ]]; then
  juju-log "Removing ssh deploy key."
  rm /home/ubuntu/.ssh/deploy_key
fi

# Composer: install.
juju-log "Installing Composer"
curl -sS https://getcomposer.org/installer | php
mv composer.phar /usr/local/bin/composer
sed -i '1i export PATH="$HOME/.composer/vendor/bin:$PATH"' $HOME/.bashrc

# Drush: install.
juju-log "Installing Drush 6.* with composer"
composer global require drush/drush:6.*

# Drupal project: Needs to install a new fresh Drupal project.
if need_new_install; then

  echo "$DEPLOY_SOURCE" > .deploy-source

  # Drupal: Check if there is a Drupal running.
  if is_drupal_booting; then
    # @TODO: Needs to do a Backup.
    juju-log "Backuping the settings.php files for using with the new project."
    #1. backup the settings.*.php files
    #2. backup the files somewhere.
    #3. Clean and remove for the new project.
  fi

  # Download the project files including Drupal if not exist.
  if !is_drupal_downloaded; then

    # From Git, already installed.
    if is_project_from_git; then

      juju-log "Cloning the project from Git repository $DEPLOY_SOURCE."
      do_git clone $DEPLOY_SOURCE $project_path

    # From Drupal.org with drush.
    else
      (
        juju-log "Download a fresh Drupal $DRUPAL_VERSION using a boilerplate as directory skeleton."
        cd /mnt/tmp
        # @TODO: This could be an option.
        wget https://github.com/TallerWebSolutions/drupal-boilerplate/archive/master.tar.gz
        tar -zxvf master.tar.gz; rm master.tar.gz
        mv drupal-boilerplate-master $project_path

        juju-log "Downloading Drupal from Drupal.org with drush."
        if [[ $DRUPAL_VERSION == 8 ]]; then
          drush dl drupal-8 --dev --drupal-project-rename="drupal.fresh"
        else
          drush dl drupal-$DRUPAL_VERSION --drupal-project-rename="drupal.fresh"
        fi

        juju-log "Move the new Drupal to the docroot."
        rm -rf $drupal_path
        mv drupal.fresh $drupal_path

      )

      # Setting some directories.
      mkdir $drupal_path/sites/all/modules/contrib
      mkdir $drupal_path/sites/all/themes/contrib

      (
        cd $project_path
        git init
      )
    fi

    juju-log "Configure the Git Flow init."
    (
      cd $project_path
      # Init the Git flow.
      do_git_flow_init
    )
  fi

  # Directory for upload files.
  mkdir $drupal_path/sites/default/files
  chmod ug+w $drupal_path/sites/default/files

  # Create the Drupal settings.
  install -o ubuntu -g www-data -m 0644 $drupal_path/sites/default/default.settings.php $config_file_path

  # Set the right owners.
  chown -R ubuntu:www-data $project_path
fi

if [ -f "$config_file_path" ] || [ -f "$config_db_file_path" ]; then
  juju-log "Drupal is already setup, just silently going away"
  exit 0
fi

host=`relation-get private-address`
database=`relation-get database`
user=`relation-get user`
password=`relation-get password`

if [ -z "$database" ] ; then
  exit 0
fi

# Drupal: Include the new Settings.
echo -e "\ninclude settings.db.php" >> $config_file_path

# Database info.
cp files/charm/drupal/settings.db.php $config_db_file_path

sed -i "s/\${host}/$host/" $config_db_file_path
sed -i "s/\${database}/$database/" $config_db_file_path
sed -i "s/\${user}/$user/" $config_db_file_path
sed -i "s/\${password}/$password/" $config_db_file_path

# Configuring the Salt hash.
(
  cd $drupal_path
  drupal_hash_salt=`drush php-eval "echo drupal_get_hash_salt();"`
  sed -i "s/^\$drupal_hash_salt = \'\'\;/\$drupal_hash_salt = \'$drupal_hash_salt\'\;/" $config_file_path
)

chmod 0644 $config_file_path
chmod 0644 $config_db_file_path

juju-log "Resetting permissions"

chown -R ubuntu:www-data $project_path

# When project is from an existent Git repository, will try to import the dump form the branch.
if is_project_from_git && [ -f $project_path/databases/$DEPLOY_BRANCH.dump.sql ]; then
  juju-log "Trying to importing MySQL dump in /databases/$DEPLOY_BRANCH.dump.sql"
  (
    cd $drupal_path
    drush sqlc < $project_path/databases/$DEPLOY_BRANCH.dump.sql
  )
  drupal_clear_all_cache
fi

. hooks/restart

# Make it publicly visible, once the Drupal service is exposed
open-port 80/tcp

# Compass: The project needs Ruby for Sass and Compass.
if [[ "$INSTALL_COMPASS" == "True" ]] && [[ ! -f .installed-compass ]]; then
  juju-log "Install Compass and SASS"
  apt-get install -y ruby-full rubygems1.8
  gem install sass -v 3.2.7
  gem install compass
  touch .installed-compass
else
  juju-log "Uninstall Compass and SASS"
  apt-get remove -y --purge ruby-full rubygems1.8
  rm .installed-compass
fi

# OS staff: User ubuntu in www-data group.
juju-log "Adding ubuntu user in the www-data group."
usermod -a -G www-data ubuntu

# Nginx: install.
juju-log "Download, compile and install Nginx with all the extra modules like Upload Progress."
apt-get -y install libpcre3-dev libssl-dev zlib1g-dev
wget -O - http://nginx.org/download/nginx-1.4.1.tar.gz | tar -C /opt -zxvf
mv /opt/nginx-1.4.1 /opt/nginx
mkdir /opt/nginx/modules
git clone https://github.com/masterzen/nginx-upload-progress-module.git /opt/nginx/modules/
git clone https://github.com/gnosek/nginx-upstream-fair /opt/nginx/modules/
git clone https://github.com/FRiCKLE/ngx_cache_purge.git /opt/nginx/modules/
/opt/nginx/configure --conf-path=/etc/nginx/nginx.conf --user=www-data --group=www-data --with-http_realip_module --with-http_gzip_static_module --with-http_stub_status_module --with-http_ssl_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --without-mail_pop3_module --without-mail_imap_module --without-http_scgi_module --without-http_uwsgi_module --with-ipv6 --with-debug --add-module=modules/nginx-upload-progress-module --add-module=modules/nginx-upstream-fair --add-module=modules/ngx_cache_purge --with-file-aio --pid-path=/var/run/nginx.pid
mkdir -p /var/cache/nginx/microcache
mkdir -p /var/log/nginx
juju-log "Installing Nginx"
cd /opt/nginx; make && make install

juju-log "Nginx as a service. (service nginx start/stop)"
wget https://raw.github.com/sebas5384/nginx-init-ubuntu/master/nginx -O /etc/init.d/nginx
chmod +x /etc/init.d/nginx
update-rc.d -f nginx defaults