Invalidates cached data if composer.json or composer.lock have changed.

The following cached data may be invalidated:

• Installed package lists (see ::getInstalledPackageList()).

Parameters

string $working_dir: A directory that contains a `composer.json` file, and optionally a `composer.lock`. If either file has changed since the last time this method was called, any cached data for the directory will be invalidated.

Return value

bool TRUE if the cached data was invalidated, otherwise FALSE.

File

core/modules/package_manager/src/ComposerInspector.php, line 437

Class

ComposerInspector

Defines a class to get information from Composer.

Namespace

Drupal\package_manager

Code

private function invalidateCacheIfNeeded(string $working_dir) : bool {
    static $known_hashes = [];
    $invalidate = FALSE;
    foreach ([
        'composer.json',
        'composer.lock',
    ] as $filename) {
        $known_hash = $known_hashes[$working_dir][$filename] ?? '';
        // If the file doesn't exist, hash_file() will return FALSE.
        $current_hash = @hash_file('xxh64', $working_dir . DIRECTORY_SEPARATOR . $filename);
        if ($known_hash && $current_hash && hash_equals($known_hash, $current_hash)) {
            continue;
        }
        $known_hashes[$working_dir][$filename] = $current_hash;
        $invalidate = TRUE;
    }
    if ($invalidate) {
        unset($this->packageLists[$working_dir]);
    }
    return $invalidate;
}

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