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<?php
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Composer\DependencyResolver;
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use Composer\Package\AliasPackage;
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use Composer\Package\BasePackage;
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use Composer\Package\PackageInterface;
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use Composer\Repository\AsyncRepositoryInterface;
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use Composer\Repository\ComposerRepository;
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use Composer\Repository\InstalledRepositoryInterface;
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use Composer\Repository\LockArrayRepository;
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use Composer\Repository\PlatformRepository;
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use Composer\Semver\Constraint\Constraint;
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use Composer\Semver\Constraint\MultiConstraint;
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/**
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* @author Nils Adermann <naderman@naderman.de>
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*/
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class PoolBuilder
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{
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private $isPackageAcceptableCallable;
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private $filterRequires;
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private $rootAliases;
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private $aliasMap = array();
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private $nameConstraints = array();
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private $loadedNames = array();
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private $packages = array();
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private $priorities = array();
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public function __construct($isPackageAcceptableCallable, array $filterRequires = array())
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{
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$this->isPackageAcceptableCallable = $isPackageAcceptableCallable;
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$this->filterRequires = $filterRequires;
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}
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public function buildPool(array $repositories, array $rootAliases, Request $request)
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{
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$this->pool = new Pool($this->filterRequires);
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$this->rootAliases = $rootAliases;
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// TODO do we really want the request here? kind of want a root requirements thingy instead
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$loadNames = array();
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foreach ($request->getJobs() as $job) {
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switch ($job['cmd']) {
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case 'install':
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$loadNames[$job['packageName']] = $job['constraint'];
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$this->nameConstraints[$job['packageName']] = $job['constraint'] ? new MultiConstraint(array($job['constraint']), false) : null;
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break;
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}
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}
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while (!empty($loadNames)) {
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$loadIds = array();
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foreach ($repositories as $key => $repository) {
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if ($repository instanceof AsyncRepositoryInterface) {
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$loadIds[$key] = $repository->requestPackages($loadNames);
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}
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}
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foreach ($loadNames as $name => $void) {
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$this->loadedNames[$name] = true;
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}
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$newLoadNames = array();
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foreach ($repositories as $key => $repository) {
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if ($repository instanceof PlatformRepository || $repository instanceof InstalledRepositoryInterface) {
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continue;
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}
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if ($repository instanceof AsyncRepositoryInterface) {
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// TODO ispackageacceptablecallable in here?
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$packages = $repository->returnPackages($loadIds[$key]);
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} else {
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// TODO should we really pass the callable into here?
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$packages = $repository->loadPackages($loadNames, $this->isPackageAcceptableCallable);
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}
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foreach ($packages as $package) {
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if (call_user_func($this->isPackageAcceptableCallable, $package->getNames(), $package->getStability())) {
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$newLoadNames += $this->loadPackage($package, $key);
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}
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}
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}
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$loadNames = $newLoadNames;
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}
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foreach ($this->packages as $i => $package) {
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if (!$package instanceof AliasPackage && !isset($this->aliasMap[spl_object_hash($package)]) && isset($this->nameConstraints[$package->getName()])) {
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$constraint = $this->nameConstraints[$package->getName()];
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if ($constraint && !$constraint->matches(new Constraint('==', $package->getVersion()))) {
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unset($this->packages[$i]);
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unset($this->priorities[$i]);
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}
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}
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}
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foreach ($repositories as $key => $repository) {
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if ($repository instanceof PlatformRepository ||
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$repository instanceof InstalledRepositoryInterface) {
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foreach ($repository->getPackages() as $package) {
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$this->loadPackage($package, $key);
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}
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}
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}
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$this->pool->setPackages($this->packages, $this->priorities);
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return $this->pool;
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}
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private function loadPackage(PackageInterface $package, $repoIndex)
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{
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$this->packages[] = $package;
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$this->priorities[] = -$repoIndex;
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if ($package instanceof AliasPackage) {
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$this->aliasMap[spl_object_hash($package->getAliasOf())][] = $package;
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}
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// handle root package aliases
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$name = $package->getName();
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if (isset($this->rootAliases[$name][$package->getVersion()])) {
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$alias = $this->rootAliases[$name][$package->getVersion()];
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if ($package instanceof AliasPackage) {
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$basePackage = $package->getAliasOf();
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} else {
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$basePackage = $package;
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}
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$aliasPackage = new AliasPackage($basePackage, $alias['alias_normalized'], $alias['alias']);
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$aliasPackage->setRootPackageAlias(true);
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$package->getRepository()->addPackage($aliasPackage); // TODO do we need this?
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$this->packages[] = $aliasPackage;
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$this->priorities[] = -$repoIndex;
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$this->aliasMap[spl_object_hash($aliasPackage->getAliasOf())][] = $aliasPackage;
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}
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$loadNames = array();
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foreach ($package->getRequires() as $link) {
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$require = $link->getTarget();
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if (!isset($this->loadedNames[$require])) {
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$loadNames[$require] = null;
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}
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if ($link->getConstraint()) {
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if (!array_key_exists($require, $this->nameConstraints)) {
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$this->nameConstraints[$require] = new MultiConstraint(array($link->getConstraint()), false);
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} elseif ($this->nameConstraints[$require]) {
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// TODO addConstraint function?
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$this->nameConstraints[$require] = new MultiConstraint(array_merge(array($link->getConstraint()), $this->nameConstraints[$require]->getConstraints()), false);
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}
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} else {
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$this->nameConstraints[$require] = null;
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}
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}
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return $loadNames;
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}
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}
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