Implemented Prohibits and Depends correctly now.
Niels Keurentjes
8 years ago
parent
692a3ed300
commit
75bb0d9b10
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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\DependencyResolver\Pool;
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use Composer\Package\Link;
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use Composer\Package\PackageInterface;
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use Composer\Repository\ArrayRepository;
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use Composer\Repository\CompositeRepository;
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use Composer\Repository\PlatformRepository;
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use Composer\Plugin\CommandEvent;
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use Composer\Plugin\PluginEvents;
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use Composer\Semver\VersionParser;
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use Symfony\Component\Console\Helper\Table;
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use Symfony\Component\Console\Input\InputArgument;
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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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/**
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* Base implementation for commands mapping dependency relationships.
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*
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* @author Niels Keurentjes <niels.keurentjes@omines.com>
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*/
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class BaseDependencyCommand extends BaseCommand
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{
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const ARGUMENT_PACKAGE = 'package';
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const ARGUMENT_CONSTRAINT = 'constraint';
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const OPTION_RECURSIVE = 'recursive';
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const OPTION_TREE = 'tree';
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/**
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* Set common options and arguments.
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*/
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protected function configure()
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{
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$this->setDefinition(array(
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new InputArgument(self::ARGUMENT_PACKAGE, InputArgument::REQUIRED, 'Package to inspect'),
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new InputArgument(self::ARGUMENT_CONSTRAINT, InputArgument::OPTIONAL, 'Optional version constraint', '*'),
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new InputOption(self::OPTION_RECURSIVE, 'r', InputOption::VALUE_NONE, 'Recursively resolves up to the root package'),
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new InputOption(self::OPTION_TREE, 't', InputOption::VALUE_NONE, 'Prints the results as a nested tree'),
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));
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}
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/**
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* Execute the command.
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*
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* @param InputInterface $input
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* @param OutputInterface $output
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* @param bool @inverted Whether
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*/
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protected function doExecute(InputInterface $input, OutputInterface $output, $inverted = false)
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{
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// Emit command event on startup
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$composer = $this->getComposer();
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$commandEvent = new CommandEvent(PluginEvents::COMMAND, $this->getName(), $input, $output);
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$composer->getEventDispatcher()->dispatch($commandEvent->getName(), $commandEvent);
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// Prepare repositories and set up a pool
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$platformOverrides = $composer->getConfig()->get('platform') ?: array();
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$repository = new CompositeRepository(array(
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new ArrayRepository(array($composer->getPackage())),
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$composer->getRepositoryManager()->getLocalRepository(),
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new PlatformRepository(array(), $platformOverrides),
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));
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$pool = new Pool();
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$pool->addRepository($repository);
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// Parse package name and constraint
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list($needle, $textConstraint) = array_pad(explode(':', $input->getArgument(self::ARGUMENT_PACKAGE)),
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2, $input->getArgument(self::ARGUMENT_CONSTRAINT));
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// Find packages that are or provide the requested package first
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$packages = $pool->whatProvides($needle);
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if (empty($packages)) {
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throw new \InvalidArgumentException(sprintf('Could not find package "%s" in your project', $needle));
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}
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// Include replaced packages for inverted lookups as they are then the actual starting point to consider
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$needles = array($needle);
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if ($inverted) {
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foreach ($packages as $package) {
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$needles = array_merge($needles, array_map(function (Link $link) {
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return $link->getTarget();
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}, $package->getReplaces()));
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}
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}
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// Parse constraint if one was supplied
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if ('*' !== $textConstraint) {
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$versionParser = new VersionParser();
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$constraint = $versionParser->parseConstraints($textConstraint);
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} else {
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$constraint = null;
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}
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// Parse rendering options
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$renderTree = $input->getOption(self::OPTION_TREE);
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$recursive = $renderTree || $input->getOption(self::OPTION_RECURSIVE);
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// Resolve dependencies
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$results = $repository->getDependents($needles, $constraint, $inverted, $recursive);
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if (empty($results)) {
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$extra = (null !== $constraint) ? sprintf(' in versions %smatching %s', $inverted ? 'not ' : '', $textConstraint) : '';
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$this->getIO()->writeError(sprintf('<info>There is no installed package depending on "%s"%s</info>',
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$needle, $extra));
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} elseif ($renderTree) {
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$root = $packages[0];
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$this->getIO()->write(sprintf('<info>%s</info> %s %s', $root->getPrettyName(), $root->getPrettyVersion(), $root->getDescription()));
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$this->printTree($output, $results);
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} else {
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$this->printTable($output, $results);
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}
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}
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/**
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* Assembles and prints a bottom-up table of the dependencies.
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*
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* @param OutputInterface $output
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* @param array $results
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*/
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protected function printTable(OutputInterface $output, $results)
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{
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$table = array();
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$doubles = array();
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do {
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$queue = array();
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$rows = array();
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foreach($results as $result) {
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/**
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* @var PackageInterface $package
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* @var Link $link
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*/
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list($package, $link, $children) = $result;
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$unique = (string)$link;
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if (isset($doubles[$unique])) {
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continue;
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}
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$doubles[$unique] = true;
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$version = (strpos($package->getPrettyVersion(), 'No version set') === 0) ? '-' : $package->getPrettyVersion();
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$rows[] = array($package->getPrettyName(), $version, $link->getDescription(), sprintf('%s (%s)', $link->getTarget(), $link->getPrettyConstraint()));
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$queue = array_merge($queue, $children);
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}
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$results = $queue;
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$table = array_merge($rows, $table);
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} while(!empty($results));
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// Render table
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$renderer = new Table($output);
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$renderer->setStyle('compact')->setRows($table)->render();
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}
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/**
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* Recursively prints a tree of the selected results.
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*
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* @param OutputInterface $output
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* @param array $results
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* @param string $prefix
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*/
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protected function printTree(OutputInterface $output, $results, $prefix = '')
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{
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$count = count($results);
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$idx = 0;
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foreach($results as $key => $result) {
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/**
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* @var PackageInterface $package
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* @var Link $link
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*/
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list($package, $link, $children) = $result;
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$isLast = (++$idx == $count);
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$versionText = (strpos($package->getPrettyVersion(), 'No version set') === 0) ? '' : $package->getPrettyVersion();
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$packageText = rtrim(sprintf('%s %s', $package->getPrettyName(), $versionText));
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$linkText = implode(' ', array($link->getDescription(), $link->getTarget(), $link->getPrettyConstraint()));
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$output->write(sprintf("%s%s %s (%s)\n", $prefix, $isLast ? '`-' : '|-', $packageText, $linkText));
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$this->printTree($output, $children, $prefix . ($isLast ? ' ' : '| '));
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}
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}
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}
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@ -0,0 +1,55 @@
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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 Symfony\Component\Console\Input\InputInterface;
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use Symfony\Component\Console\Output\OutputInterface;
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/**
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* @author Niels Keurentjes <niels.keurentjes@omines.com>
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*/
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class ProhibitsCommand extends BaseDependencyCommand
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{
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/**
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* Configure command metadata.
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*/
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protected function configure()
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{
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parent::configure();
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$this
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->setName('prohibits')
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->setAliases(array('why-not'))
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->setDescription('Shows which packages prevent the given package from being installed')
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->setHelp(<<<EOT
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Displays detailed information about why a package cannot be installed.
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<info>php composer.phar prohibits composer/composer</info>
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EOT
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)
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;
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}
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/**
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* Execute the function.
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*
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* @param InputInterface $input
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* @param OutputInterface $output
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* @return int|null
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*/
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protected function execute(InputInterface $input, OutputInterface $output)
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{
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parent::doExecute($input, $output, true);
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}
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}
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