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<?php /* * This file is part of Composer. * * (c) Nils Adermann <[email protected]> * Jordi Boggiano <[email protected]> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Repository; use Composer\DependencyResolver\Pool; use Composer\DependencyResolver\PoolBuilder; use Composer\DependencyResolver\Request; use Composer\EventDispatcher\EventDispatcher; use Composer\IO\IOInterface; use Composer\IO\NullIO; use Composer\Package\BasePackage; use Composer\Package\AliasPackage; use Composer\Package\CompleteAliasPackage; use Composer\Package\CompletePackageInterface; use Composer\Semver\Constraint\ConstraintInterface; use Composer\Package\Version\StabilityFilter; /** * @author Nils Adermann <[email protected]> */ class RepositorySet { /** * Packages are returned even though their stability does not match the required stability */ const ALLOW_UNACCEPTABLE_STABILITIES = 1; /** * Packages will be looked up in all repositories, even after they have been found in a higher prio one */ const ALLOW_SHADOWED_REPOSITORIES = 2; /** * @var array[] * @phpstan-var array<string, array<string, array{alias: string, alias_normalized: string}>> */ private $rootAliases; /** * @var string[] * @phpstan-var array<string, string> */ private $rootReferences; /** @var RepositoryInterface[] */ private $repositories = array(); /** * @var int[] array of stability => BasePackage::STABILITY_* value * @phpstan-var array<string, int> */ private $acceptableStabilities; /** * @var int[] array of package name => BasePackage::STABILITY_* value * @phpstan-var array<string, int> */ private $stabilityFlags; private $rootRequires; /** @var bool */ private $locked = false; /** @var bool */ private $allowInstalledRepositories = false; /** * In most cases if you are looking to use this class as a way to find packages from repositories * passing minimumStability is all you need to worry about. The rest is for advanced pool creation including * aliases, pinned references and other special cases. * * @param string $minimumStability * @param int[] $stabilityFlags an array of package name => BasePackage::STABILITY_* value * @phpstan-param array<string, int> $stabilityFlags * @param array[] $rootAliases * @phpstan-param list<array{package: string, version: string, alias: string, alias_normalized: string}> $rootAliases * @param string[] $rootReferences an array of package name => source reference * @phpstan-param array<string, string> $rootReferences */ public function __construct($minimumStability = 'stable', array $stabilityFlags = array(), array $rootAliases = array(), array $rootReferences = array(), array $rootRequires = array()) { $this->rootAliases = self::getRootAliasesPerPackage($rootAliases); $this->rootReferences = $rootReferences; $this->acceptableStabilities = array(); foreach (BasePackage::$stabilities as $stability => $value) { if ($value <= BasePackage::$stabilities[$minimumStability]) { $this->acceptableStabilities[$stability] = $value; } } $this->stabilityFlags = $stabilityFlags; $this->rootRequires = $rootRequires; foreach ($rootRequires as $name => $constraint) { if (PlatformRepository::isPlatformPackage($name)) { unset($this->rootRequires[$name]); } } } public function allowInstalledRepositories($allow = true) { $this->allowInstalledRepositories = $allow; } public function getRootRequires() { return $this->rootRequires; } /** * Adds a repository to this repository set * * The first repos added have a higher priority. As soon as a package is found in any * repository the search for that package ends, and following repos will not be consulted. * * @param RepositoryInterface $repo A package repository */ public function addRepository(RepositoryInterface $repo) { if ($this->locked) { throw new \RuntimeException("Pool has already been created from this repository set, it cannot be modified anymore."); } if ($repo instanceof CompositeRepository) { $repos = $repo->getRepositories(); } else { $repos = array($repo); } foreach ($repos as $repo) { $this->repositories[] = $repo; } } /** * Find packages providing or matching a name and optionally meeting a constraint in all repositories * * Returned in the order of repositories, matching priority * * @param string $name * @param ConstraintInterface|null $constraint * @param int $flags any of the ALLOW_* constants from this class to tweak what is returned * @return array */ public function findPackages($name, ConstraintInterface $constraint = null, $flags = 0) { $ignoreStability = ($flags & self::ALLOW_UNACCEPTABLE_STABILITIES) !== 0; $loadFromAllRepos = ($flags & self::ALLOW_SHADOWED_REPOSITORIES) !== 0; $packages = array(); if ($loadFromAllRepos) { foreach ($this->repositories as $repository) { $packages[] = $repository->findPackages($name, $constraint) ?: array(); } } else { foreach ($this->repositories as $repository) { $result = $repository->loadPackages(array($name => $constraint), $ignoreStability ? BasePackage::$stabilities : $this->acceptableStabilities, $ignoreStability ? array() : $this->stabilityFlags); $packages[] = $result['packages']; foreach ($result['namesFound'] as $nameFound) { // avoid loading the same package again from other repositories once it has been found if ($name === $nameFound) { break 2; } } } } $candidates = $packages ? call_user_func_array('array_merge', $packages) : array(); // when using loadPackages above (!$loadFromAllRepos) the repos already filter for stability so no need to do it again if ($ignoreStability || !$loadFromAllRepos) { return $candidates; } $result = array(); foreach ($candidates as $candidate) { if ($this->isPackageAcceptable($candidate->getNames(), $candidate->getStability())) { $result[] = $candidate; } } return $result; } public function getProviders($packageName) { $providers = array(); foreach ($this->repositories as $repository) { if ($repoProviders = $repository->getProviders($packageName)) { $providers = array_merge($providers, $repoProviders); } } return $providers; } public function isPackageAcceptable($names, $stability) { return StabilityFilter::isPackageAcceptable($this->acceptableStabilities, $this->stabilityFlags, $names, $stability); } /** * Create a pool for dependency resolution from the packages in this repository set. * * @return Pool */ public function createPool(Request $request, IOInterface $io, EventDispatcher $eventDispatcher = null) { $poolBuilder = new PoolBuilder($this->acceptableStabilities, $this->stabilityFlags, $this->rootAliases, $this->rootReferences, $io, $eventDispatcher); foreach ($this->repositories as $repo) { if (($repo instanceof InstalledRepositoryInterface || $repo instanceof InstalledRepository) && !$this->allowInstalledRepositories) { throw new \LogicException('The pool can not accept packages from an installed repository'); } } $this->locked = true; return $poolBuilder->buildPool($this->repositories, $request); } /** * Create a pool for dependency resolution from the packages in this repository set. * * @return Pool */ public function createPoolWithAllPackages() { foreach ($this->repositories as $repo) { if (($repo instanceof InstalledRepositoryInterface || $repo instanceof InstalledRepository) && !$this->allowInstalledRepositories) { throw new \LogicException('The pool can not accept packages from an installed repository'); } } $this->locked = true; $packages = array(); foreach ($this->repositories as $repository) { foreach ($repository->getPackages() as $package) { $packages[] = $package; if (isset($this->rootAliases[$package->getName()][$package->getVersion()])) { $alias = $this->rootAliases[$package->getName()][$package->getVersion()]; while ($package instanceof AliasPackage) { $package = $package->getAliasOf(); } if ($package instanceof CompletePackageInterface) { $aliasPackage = new CompleteAliasPackage($package, $alias['alias_normalized'], $alias['alias']); } else { $aliasPackage = new AliasPackage($package, $alias['alias_normalized'], $alias['alias']); } $aliasPackage->setRootPackageAlias(true); $packages[] = $aliasPackage; } } } return new Pool($packages); } // TODO unify this with above in some simpler version without "request"? public function createPoolForPackage($packageName, LockArrayRepository $lockedRepo = null) { return $this->createPoolForPackages(array($packageName), $lockedRepo); } public function createPoolForPackages($packageNames, LockArrayRepository $lockedRepo = null) { $request = new Request($lockedRepo); foreach ($packageNames as $packageName) { if (PlatformRepository::isPlatformPackage($packageName)) { throw new \LogicException('createPoolForPackage(s) can not be used for platform packages, as they are never loaded by the PoolBuilder which expects them to be fixed. Use createPoolWithAllPackages or pass in a proper request with the platform packages you need fixed in it.'); } $request->requireName($packageName); } return $this->createPool($request, new NullIO()); } private static function getRootAliasesPerPackage(array $aliases) { $normalizedAliases = array(); foreach ($aliases as $alias) { $normalizedAliases[$alias['package']][$alias['version']] = array( 'alias' => $alias['alias'], 'alias_normalized' => $alias['alias_normalized'], ); } return $normalizedAliases; } }