public function clear_destination($destination)
{
global $wp_filesystem;
if (!is_dir($destination)) {
// This is an installation not an upgrade.
return parent::clear_destination($destination);
}
$data = $this->caj_get_plugin_data($destination);
if (false === $data) {
// The existing directory is not a valid plugin, skip backup.
return parent::clear_destination($destination);
}
$backup_url = $this->caj_create_backup($destination);
if (!is_wp_error($backup_url)) {
/* translators: 1: plugin zip URL */
$this->skin->feedback(sprintf(__('A backup zip file of the old plugin version can be downloaded <a href="%1$s">here</a>.', 'easy-theme-and-plugin-upgrades'), $backup_url));
// Restore default strings and display the original remove_old message.
$this->upgrade_strings();
$this->skin->feedback('remove_old');
return parent::clear_destination($destination);
}
$this->skin->error($backup_url);
$this->skin->feedback(__('Moving the old version of the plugin to a new directory…', 'easy-theme-and-plugin-upgrades'));
$new_name = basename($destination) . "-{$data['version']}";
$directory = dirname($destination);
for ($x = 0; $x < 20; $x++) {
$test_name = $new_name . '-' . $this->get_random_characters(10, 20);
if (!is_dir("{$directory}/{$test_name}")) {
$new_name = $test_name;
break;
}
}
if (is_dir("{$directory}/{$new_name}")) {
// We gave it our best effort. Time to give up on the idea of having a backup.
$this->skin->error(__('Unable to find a new directory name to move the old version of the plugin to. No backup will be created.', 'easy-theme-and-plugin-upgrades'));
} else {
$result = $wp_filesystem->move($destination, "{$directory}/{$new_name}");
if ($result) {
/* translators: 1: new plugin directory name */
$this->skin->feedback(sprintf(__('Moved the old version of the plugin to a new plugin directory named %1$s. This directory should be backed up and removed from the site.', 'easy-theme-and-plugin-upgrades'), "<code>{$new_name}</code>"));
} else {
$this->skin->error(__('Unable to move the old version of the plugin to a new directory. No backup will be created.', 'easy-theme-and-plugin-upgrades'));
}
}
// Restore default strings and display the original remove_old message.
$this->upgrade_strings();
$this->skin->feedback('remove_old');
return parent::clear_destination($destination);
}
