/**
* 2016-06-26
* The method can be used not only for the custom packages,
* but for the standard Magento packages too.
* «How to programmatically get an extension's version from its composer.json file?»
* https://mage2.pro/t/1798
* @param string $name [optional]
* @return string|null
*/
function df_package_version($name)
{
/** @var P|IP|null $package */
$package = df_package($name);
/**
* 2016-07-01
* By analogy with
* @see \Magento\Framework\Composer\ComposerInformation::getInstalledMagentoPackages()
* https://mage2.pro/t/1796
*/
return !$package ? null : $package->getPrettyVersion();
}
/**
* 2016-07-01
* @return CP|P|IP
*/
private function package()
{
return df_package($this->_name);
}