257 lines
11 KiB
PHP
257 lines
11 KiB
PHP
<?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\Command;
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use Composer\Script\ScriptEvents;
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use Composer\Script\EventDispatcher;
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use Composer\Autoload\AutoloadGenerator;
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use Composer\Composer;
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use Composer\DependencyResolver;
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use Composer\DependencyResolver\Pool;
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use Composer\DependencyResolver\Request;
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use Composer\DependencyResolver\Operation;
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use Composer\Package\MemoryPackage;
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use Composer\Package\LinkConstraint\VersionConstraint;
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use Composer\Package\PackageInterface;
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use Composer\Repository\CompositeRepository;
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use Composer\Repository\PlatformRepository;
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use Composer\Repository\RepositoryInterface;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputOption;
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use Symfony\Component\Console\Output\OutputInterface;
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use Composer\DependencyResolver\Operation\InstallOperation;
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use Composer\DependencyResolver\Solver;
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use Composer\IO\IOInterface;
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/**
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* @author Jordi Boggiano <j.boggiano@seld.be>
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* @author Ryan Weaver <ryan@knplabs.com>
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* @author Konstantin Kudryashov <ever.zet@gmail.com>
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*/
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class InstallCommand extends Command
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{
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protected function configure()
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{
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$this
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->setName('install')
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->setDescription('Parses the composer.json file and downloads the needed dependencies.')
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->setDefinition(array(
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new InputOption('prefer-source', null, InputOption::VALUE_NONE, 'Forces installation from package sources when possible, including VCS information.'),
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new InputOption('dry-run', null, InputOption::VALUE_NONE, 'Outputs the operations but will not execute anything (implicitly enables --verbose).'),
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new InputOption('no-install-recommends', null, InputOption::VALUE_NONE, 'Do not install recommended packages (ignored when installing from an existing lock file).'),
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new InputOption('install-suggests', null, InputOption::VALUE_NONE, 'Also install suggested packages (ignored when installing from an existing lock file).'),
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))
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->setHelp(<<<EOT
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The <info>install</info> command reads the composer.json file from the
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current directory, processes it, and downloads and installs all the
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libraries and dependencies outlined in that file.
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<info>php composer.phar install</info>
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EOT
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)
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;
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}
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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$composer = $this->getComposer();
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$io = $this->getApplication()->getIO();
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$eventDispatcher = new EventDispatcher($composer, $io);
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return $this->install(
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$io,
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$composer,
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$eventDispatcher,
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(Boolean)$input->getOption('prefer-source'),
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(Boolean)$input->getOption('dry-run'),
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(Boolean)$input->getOption('verbose'),
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(Boolean)$input->getOption('no-install-recommends'),
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(Boolean)$input->getOption('install-suggests')
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);
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}
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public function install(IOInterface $io, Composer $composer, EventDispatcher $eventDispatcher, $preferSource = false, $dryRun = false, $verbose = false, $noInstallRecommends = false, $installSuggests = false, $update = false, RepositoryInterface $additionalInstalledRepository = null)
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{
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if ($dryRun) {
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$verbose = true;
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}
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if ($preferSource) {
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$composer->getDownloadManager()->setPreferSource(true);
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}
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// create local repo, this contains all packages that are installed in the local project
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$localRepo = $composer->getRepositoryManager()->getLocalRepository();
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// create installed repo, this contains all local packages + platform packages (php & extensions)
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$installedRepo = new CompositeRepository(array($localRepo, new PlatformRepository()));
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if ($additionalInstalledRepository) {
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$installedRepo->addRepository($additionalInstalledRepository);
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}
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// creating repository pool
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$pool = new Pool;
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$pool->addRepository($installedRepo);
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foreach ($composer->getRepositoryManager()->getRepositories() as $repository) {
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$pool->addRepository($repository);
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}
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// dispatch pre event
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if (!$dryRun) {
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$eventName = $update ? ScriptEvents::PRE_UPDATE_CMD : ScriptEvents::PRE_INSTALL_CMD;
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$eventDispatcher->dispatchCommandEvent($eventName);
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}
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// creating requirements request
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$installFromLock = false;
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$request = new Request($pool);
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if ($update) {
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$io->write('<info>Updating dependencies</info>');
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$installedPackages = $installedRepo->getPackages();
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$links = $this->collectLinks($composer->getPackage(), $noInstallRecommends, $installSuggests);
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foreach ($links as $link) {
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foreach ($installedPackages as $package) {
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if ($package->getName() === $link->getTarget()) {
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$request->update($package->getName(), new VersionConstraint('=', $package->getVersion()));
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break;
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}
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}
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$request->install($link->getTarget(), $link->getConstraint());
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}
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} elseif ($composer->getLocker()->isLocked()) {
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$installFromLock = true;
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$io->write('<info>Installing from lock file</info>');
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if (!$composer->getLocker()->isFresh()) {
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$io->write('<warning>Your lock file is out of sync with your composer.json, run "composer.phar update" to update dependencies</warning>');
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}
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foreach ($composer->getLocker()->getLockedPackages() as $package) {
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$constraint = new VersionConstraint('=', $package->getVersion());
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$request->install($package->getName(), $constraint);
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}
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} else {
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$io->write('<info>Installing dependencies</info>');
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$links = $this->collectLinks($composer->getPackage(), $noInstallRecommends, $installSuggests);
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foreach ($links as $link) {
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$request->install($link->getTarget(), $link->getConstraint());
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}
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}
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// prepare solver
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$installationManager = $composer->getInstallationManager();
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$policy = new DependencyResolver\DefaultPolicy();
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$solver = new DependencyResolver\Solver($policy, $pool, $installedRepo);
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// solve dependencies
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$operations = $solver->solve($request);
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// check for missing deps
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// TODO this belongs in the solver, but this will do for now to report top-level deps missing at least
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foreach ($request->getJobs() as $job) {
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if ('install' === $job['cmd']) {
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foreach ($installedRepo->getPackages() as $package ) {
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if ($installedRepo->hasPackage($package) && !$package->isPlatform() && !$installationManager->isPackageInstalled($package)) {
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$operations[$job['packageName']] = new InstallOperation($package, Solver::RULE_PACKAGE_NOT_EXIST);
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}
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if (in_array($job['packageName'], $package->getNames())) {
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continue 2;
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}
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}
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foreach ($operations as $operation) {
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if ('install' === $operation->getJobType() && in_array($job['packageName'], $operation->getPackage()->getNames())) {
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continue 2;
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}
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if ('update' === $operation->getJobType() && in_array($job['packageName'], $operation->getTargetPackage()->getNames())) {
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continue 2;
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}
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}
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if ($pool->whatProvides($job['packageName'])) {
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throw new \UnexpectedValueException('Package '.$job['packageName'].' can not be installed, either because its version constraint is incorrect, or because one of its dependencies was not found.');
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}
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throw new \UnexpectedValueException('Package '.$job['packageName'].' was not found in the package pool, check the name for typos.');
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}
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}
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// execute operations
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if (!$operations) {
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$io->write('<info>Nothing to install/update</info>');
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}
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foreach ($operations as $operation) {
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if ($verbose) {
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$io->write((string) $operation);
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}
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if (!$dryRun) {
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$eventDispatcher->dispatchPackageEvent(constant('Composer\Script\ScriptEvents::PRE_PACKAGE_'.strtoupper($operation->getJobType())), $operation);
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// if installing from lock, restore dev packages' references to their locked state
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if ($installFromLock) {
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$package = null;
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if ('update' === $operation->getJobType()) {
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$package = $operation->getTargetPackage();
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} elseif ('install' === $operation->getJobType()) {
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$package = $operation->getPackage();
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}
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if ($package && $package->isDev()) {
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foreach ($composer->getLocker()->getLockedPackages() as $lockedPackage) {
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if (!empty($lockedPackage['source_reference']) && strtolower($lockedPackage['package']) === $package->getName()) {
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$package->setSourceReference($lockedPackage['source_reference']);
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}
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}
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}
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}
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$installationManager->execute($operation);
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$eventDispatcher->dispatchPackageEvent(constant('Composer\Script\ScriptEvents::POST_PACKAGE_'.strtoupper($operation->getJobType())), $operation);
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}
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}
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if (!$dryRun) {
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if ($update || !$composer->getLocker()->isLocked()) {
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$composer->getLocker()->lockPackages($localRepo->getPackages());
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$io->write('<info>Writing lock file</info>');
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}
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$localRepo->write();
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$io->write('<info>Generating autoload files</info>');
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$generator = new AutoloadGenerator;
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$generator->dump($localRepo, $composer->getPackage(), $installationManager, $installationManager->getVendorPath().'/.composer');
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// dispatch post event
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$eventName = $update ? ScriptEvents::POST_UPDATE_CMD : ScriptEvents::POST_INSTALL_CMD;
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$eventDispatcher->dispatchCommandEvent($eventName);
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}
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}
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private function collectLinks(PackageInterface $package, $noInstallRecommends, $installSuggests)
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{
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$links = $package->getRequires();
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if (!$noInstallRecommends) {
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$links = array_merge($links, $package->getRecommends());
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}
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if ($installSuggests) {
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$links = array_merge($links, $package->getSuggests());
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}
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return $links;
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}
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}
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