98 lines
2.9 KiB
PHP
98 lines
2.9 KiB
PHP
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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\Command;
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use Composer\Composer;
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use Composer\Package\PackageInterface;
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use Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Input\InputArgument;
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use Symfony\Component\Console\Output\OutputInterface;
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/**
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* @author Justin Rainbow <justin.rainbow@gmail.com>
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*/
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class DependsCommand 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('depends')
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->setDescription('Where is a package used?')
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->setDefinition(array(
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new InputArgument('package', InputArgument::REQUIRED, 'the package to inspect')
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))
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->setHelp(<<<EOT
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The depends command displays detailed information about where a
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package is referenced.
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<info>php composer.phar depends composer/composer</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 = $this->getComposer();
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$references = $this->getReferences($input, $output, $composer);
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$this->printLinks($input, $output, $references);
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}
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/**
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* finds a list of packages which depend on another package
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*
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* @param InputInterface $input
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* @param OutputInterface $output
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* @param Composer $composer
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* @return array
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* @throws \InvalidArgumentException
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*/
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protected function getReferences(InputInterface $input, OutputInterface $output, Composer $composer)
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{
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$needle = $input->getArgument('package');
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$references = array();
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$recommendedDependencies = array();
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// check if we have a local installation so we can grab the right package/version
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$repos = array_merge(
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array($composer->getRepositoryManager()->getLocalRepository()),
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$composer->getRepositoryManager()->getRepositories()
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);
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foreach ($repos as $repository) {
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foreach ($repository->getPackages() as $package) {
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foreach ($package->getRequires() as $link) {
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if ($link->getTarget() === $needle) {
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$references[] = $link;
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}
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}
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foreach ($package->getSuggests() as $link) {
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if ($link->getTarget() === $needle) {
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$references[] = $link;
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}
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}
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}
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}
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return $references;
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}
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protected function printLinks(InputInterface $input, OutputInterface $output, array $links)
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{
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foreach ($links as $link) {
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$output->writeln($link->getSource() . ' <comment>' . $link->getPrettyConstraint() . '</comment>');
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}
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}
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}
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