enforce_revlog.install

<?php
/**
 * @file
 * Installation routines for enforce_revlog
 */

/**
 * Implements hook_install().
 */
function enforce_revlog_install() {
  $t = get_t();
  backdrop_set_message($t('Go to the <a href="@settings">settings page</a> to configure Enforce Revision Log. You will need to enable for each content type you want to enforce revision logs for.', array(
    '@settings' => url('admin/config/content/enforce-revlog'),
  )));
}

/**
 * Migrate enforce_revlog variables to config.
 */
function enforce_revlog_update_1000() {
  $config = config('enforce_revlog.settings');

  // Set the fixed config. We don't need 'enforce_revlog_user1' as it didn't
  // exist in Drupal 7.
  $config->set('enforce_revlog_revision_revert', update_variable_get('enforce_revlog_revision_revert', '0'));

  // Set the config for each node type.
  $node_types = node_type_get_names();
  foreach ($node_types as $type => $name) {
    $setting_name = 'enforce_revlog_node_type_' . $type;
    $config->set($setting_name, update_variable_get($setting_name));
  }
  // Save the config.
  $config->save();

  // Remove fixed Drupal 7 variable.
  update_variable_del('enforce_revlog_revision_revert');
  // Remove variable for each node type.
  foreach ($node_types as $type => $name) {
    update_variable_del('enforce_revlog_node_type_' . $type);
  }
}