/**
* Can the upgrade of the existing plugin be cancelled?
*
* Subplugins can be cancelled only via their parent plugin, not separately
* (they are considered as implicit requirements if distributed together
* with the main package).
*
* @param \core\plugininfo\base $plugin
* @return bool
*/
public function can_cancel_plugin_upgrade(\core\plugininfo\base $plugin)
{
global $CFG;
if (!empty($CFG->disableupdateautodeploy)) {
// Cancelling the plugin upgrade is actually installation of the
// previously archived version.
return false;
}
if (empty($plugin) or $plugin->is_standard() or $plugin->is_subplugin() or !$this->is_plugin_folder_removable($plugin->component)) {
return false;
}
if ($plugin->get_status() === self::PLUGIN_STATUS_UPGRADE) {
if ($this->get_code_manager()->get_archived_plugin_version($plugin->component, $plugin->versiondb)) {
return true;
}
}
return false;
}