Returns the current Composer version.

Return value

string The Composer version.

Throws

\UnexpectedValueException Thrown if the Composer version cannot be determined.

File

core/modules/package_manager/src/ComposerInspector.php, line 264

Class

ComposerInspector

Defines a class to get information from Composer.

Namespace

Drupal\package_manager

Code

public function getVersion() : string {
    $this->runner
        ->run([
        '--format=json',
    ], callback: $this->processCallback
        ->reset());
    $data = $this->processCallback
        ->parseJsonOutput();
    if (isset($data['application']['name']) && isset($data['application']['version']) && $data['application']['name'] === 'Composer' && is_string($data['application']['version'])) {
        return $data['application']['version'];
    }
    throw new \UnexpectedValueException('Unable to determine Composer version');
}

---