# The directory the Drupal site is installed in
DRUPAL_DIR=~/public_html

# The working directory for a temp copy of the new version
UPDATE_TMP_DIR=~/update_drupal

# A text file containing all the resources to copy across
# to the new version (favicon.ico, logo.png). One per line
# Note that .htaccess is copied anyway and should not be listed.
FILES_TO_KEEP=~/drupal_copy.txt

# A text file containing a list of all the site-specific
# subfolders within the sites directory. For most Drupal
# installations, the file should just contain one line with
# the word default. But you may list example.com,
# staging.example.com and so on, if you use multi-site
DRUPAL_SITES=~/drupal_sites.txt

# Near the bottom of the script is a Drush command to
# updatedb. You may need to add a -l switch to specify
# the sites you want to update, or use Drush aliases.
# This could be picked up from the sites txt file, but
# sometimes not all the databases referenced in
# sites/*/settings.php are accessible on this server.

# End configuration section

# 1. Clear out the temp directory from last time
mkdir -p $UPDATE_TMP_DIR
cd $UPDATE_TMP_DIR
rm drupal* -rf

# 2. Download Drupal into temp directory
# and get rid of version number in directory name.
drush dl drupal
mv $UPDATE_TMP_DIR/drupal* $UPDATE_TMP_DIR/drupal

# 3. Remove group-write permissions for suPHP.
chmod -R g-w $UPDATE_TMP_DIR/drupal/*

# 4. Make the sites directories writeable, so they don't get lost
for sites in `cat $DRUPAL_SITES`; do
  chmod +w $DRUPAL_DIR/sites/$sites
  chmod +w $DRUPAL_DIR/sites/$sites/settings.php
done

# 5. Move all the files we wish to keep into the new version
for keeps in `cat $FILES_TO_KEEP`; do
  mv $DRUPAL_DIR/$keeps $UPDATE_TMP_DIR/drupal
done
mv $DRUPAL_DIR/.htaccess $UPDATE_TMP_DIR/drupal

# 6. Copy the sites directory into the new version
cp -r $DRUPAL_DIR/sites/* $UPDATE_TMP_DIR/drupal/sites

# 7. Scary bit: Delete everything left in the Drupal directory
rm $DRUPAL_DIR/* $DRUPAL_DIR/.ht* -rf

# 8. Move the temp working copy into the main directory
mv $UPDATE_TMP_DIR/drupal/* $UPDATE_TMP_DIR/drupal/.??* $DRUPAL_DIR

# 9. Run updates
cd $DRUPAL_DIR
# drush -l example updatedb
drush updatedb

# 10. Remove temp working copy
chmod -R +w $UPDATE_TMP_DIR/drupal
rm $UPDATE_TMP_DIR/drupal -rf