nextcloud/lib/composer/composer/package-versions-deprecated/src/PackageVersions/FallbackVersions.php

129 lines
4.0 KiB
PHP

<?php
declare(strict_types=1);
namespace PackageVersions;
use Generator;
use OutOfBoundsException;
use UnexpectedValueException;
use function array_key_exists;
use function array_merge;
use function basename;
use function file_exists;
use function file_get_contents;
use function getcwd;
use function iterator_to_array;
use function json_decode;
use function json_encode;
use function sprintf;
/**
* @internal
*
* This is a fallback for {@see \PackageVersions\Versions::getVersion()}
* Do not use this class directly: it is intended to be only used when
* {@see \PackageVersions\Versions} fails to be generated, which typically
* happens when running composer with `--no-scripts` flag)
*/
final class FallbackVersions
{
const ROOT_PACKAGE_NAME = 'unknown/root-package@UNKNOWN';
private function __construct()
{
}
/**
* @throws OutOfBoundsException If a version cannot be located.
* @throws UnexpectedValueException If the composer.lock file could not be located.
*/
public static function getVersion(string $packageName): string
{
$versions = iterator_to_array(self::getVersions(self::getPackageData()));
if (! array_key_exists($packageName, $versions)) {
throw new OutOfBoundsException(
'Required package "' . $packageName . '" is not installed: check your ./vendor/composer/installed.json and/or ./composer.lock files'
);
}
return $versions[$packageName];
}
/**
* @return mixed[]
*
* @throws UnexpectedValueException
*/
private static function getPackageData(): array
{
$checkedPaths = [
// The top-level project's ./vendor/composer/installed.json
getcwd() . '/vendor/composer/installed.json',
__DIR__ . '/../../../../composer/installed.json',
// The top-level project's ./composer.lock
getcwd() . '/composer.lock',
__DIR__ . '/../../../../../composer.lock',
// This package's composer.lock
__DIR__ . '/../../composer.lock',
];
$packageData = [];
foreach ($checkedPaths as $path) {
if (! file_exists($path)) {
continue;
}
$data = json_decode(file_get_contents($path), true);
switch (basename($path)) {
case 'installed.json':
// composer 2.x installed.json format
if (isset($data['packages'])) {
$packageData[] = $data['packages'];
} else {
// composer 1.x installed.json format
$packageData[] = $data;
}
break;
case 'composer.lock':
$packageData[] = $data['packages'] + ($data['packages-dev'] ?? []);
break;
default:
// intentionally left blank
}
}
if ($packageData !== []) {
return array_merge(...$packageData);
}
throw new UnexpectedValueException(sprintf(
'PackageVersions could not locate the `vendor/composer/installed.json` or your `composer.lock` '
. 'location. This is assumed to be in %s. If you customized your composer vendor directory and ran composer '
. 'installation with --no-scripts, or if you deployed without the required composer files, PackageVersions '
. 'can\'t detect installed versions.',
json_encode($checkedPaths)
));
}
/**
* @param mixed[] $packageData
*
* @return Generator&string[]
*
* @psalm-return Generator<string, string>
*/
private static function getVersions(array $packageData): Generator
{
foreach ($packageData as $package) {
yield $package['name'] => $package['version'] . '@' . (
$package['source']['reference'] ?? $package['dist']['reference'] ?? ''
);
}
yield self::ROOT_PACKAGE_NAME => self::ROOT_PACKAGE_NAME;
}
}