/**
* Check if there is an upgrade available
*
* @return bool|mixed
*/
public function has_upgrade()
{
// Check if there are upgrades available.
$path = $this->get_directory() . DIRECTORY_SEPARATOR . sprintf('%s.php', $this->slug);
if (!is_file($path)) {
$headers = array('version' => '0.0.0');
} else {
$headers = get_file_data($path, array('version' => 'Version'));
}
$latest_version = Stencil_Installable_Versions::get($this);
return version_compare($headers['version'], $latest_version, '<');
}
/**
* Load versions from json file.
*
* @return array|bool
*/
private static function load()
{
if (self::$loaded) {
return;
}
self::$loaded = true;
$filename = 'https://raw.githubusercontent.com/moorscode/stencil/master/config/versions.json';
$versions_json = file_get_contents($filename);
if (empty($versions_json)) {
return;
}
$decoded = json_decode($versions_json, true);
if (is_array($decoded)) {
self::$versions = $decoded;
}
}