function Locker::updateHash

Updates the lock file's hash in-place from a given composer.json's JsonFile

This does not reload or require any packages, and retains the filemtime of the lock file.

Use this only to update the lock file hash after updating a composer.json in ways that are guaranteed NOT to impact the dependency resolution.

This is a risky method, use carefully.

Parameters

(callable(array<string, mixed>): array<string, mixed>)|null $dataProcessor Receives the lock data and can process it before it gets written to disk:

File

vendor/composer/composer/src/Composer/Package/Locker.php, line 429

Class

Locker

Reads/writes project lockfile (composer.lock).

Namespace

Composer\Package

Code

public function updateHash(JsonFile $composerJson, ?callable $dataProcessor = null) : void {
    $contents = file_get_contents($composerJson->getPath());
    if (false === $contents) {
        throw new \RuntimeException('Unable to read ' . $composerJson->getPath() . ' contents to update the lock file hash.');
    }
    $lockMtime = filemtime($this->lockFile
        ->getPath());
    $lockData = $this->lockFile
        ->read();
    $lockData['content-hash'] = Locker::getContentHash($contents);
    if ($dataProcessor !== null) {
        $lockData = $dataProcessor($lockData);
    }
    $this->lockFile
        ->write($this->fixupJsonDataType($lockData));
    $this->lockDataCache = null;
    $this->virtualFileWritten = false;
    if (is_int($lockMtime)) {
        @touch($this->lockFile
            ->getPath(), $lockMtime);
    }
}