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File Content: `ShowCommand.php`

<?php

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer\Command;

use Composer\Composer;
use Composer\DependencyResolver\DefaultPolicy;
use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
use Composer\Json\JsonFile;
use Composer\Package\BasePackage;
use Composer\Package\CompletePackageInterface;
use Composer\Package\Link;
use Composer\Package\AliasPackage;
use Composer\Package\Package;
use Composer\Package\PackageInterface;
use Composer\Package\Version\VersionParser;
use Composer\Package\Version\VersionSelector;
use Composer\Pcre\Preg;
use Composer\Plugin\CommandEvent;
use Composer\Plugin\PluginEvents;
use Composer\Repository\InstalledArrayRepository;
use Composer\Repository\ComposerRepository;
use Composer\Repository\CompositeRepository;
use Composer\Repository\FilterRepository;
use Composer\Repository\PlatformRepository;
use Composer\Repository\RepositoryFactory;
use Composer\Repository\InstalledRepository;
use Composer\Repository\RepositoryInterface;
use Composer\Repository\RepositorySet;
use Composer\Repository\RootPackageRepository;
use Composer\Semver\Constraint\ConstraintInterface;
use Composer\Semver\Semver;
use Composer\Spdx\SpdxLicenses;
use Symfony\Component\Console\Formatter\OutputFormatterStyle;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * @author Robert Schönthal <seroscho@googlemail.com>
 * @author Jordi Boggiano <j.boggiano@seld.be>
 * @author Jérémy Romey <jeremyFreeAgent>
 * @author Mihai Plasoianu <mihai@plasoianu.de>
 */
class ShowCommand extends BaseCommand
{
    /** @var VersionParser */
    protected $versionParser;
    /** @var string[] */
    protected $colors;

    /** @var ?RepositorySet */
    private $repositorySet;

    /**
     * @return void
     */
    protected function configure()
    {
        $this
            ->setName('show')
            ->setAliases(array('info'))
            ->setDescription('Shows information about packages.')
            ->setDefinition(array(
                new InputArgument('package', InputArgument::OPTIONAL, 'Package to inspect. Or a name including a wildcard (*) to filter lists of packages instead.'),
                new InputArgument('version', InputArgument::OPTIONAL, 'Version or version constraint to inspect'),
                new InputOption('all', null, InputOption::VALUE_NONE, 'List all packages'),
                new InputOption('locked', null, InputOption::VALUE_NONE, 'List all locked packages'),
                new InputOption('installed', 'i', InputOption::VALUE_NONE, 'List installed packages only (enabled by default, only present for BC).'),
                new InputOption('platform', 'p', InputOption::VALUE_NONE, 'List platform packages only'),
                new InputOption('available', 'a', InputOption::VALUE_NONE, 'List available packages only'),
                new InputOption('self', 's', InputOption::VALUE_NONE, 'Show the root package information'),
                new InputOption('name-only', 'N', InputOption::VALUE_NONE, 'List package names only'),
                new InputOption('path', 'P', InputOption::VALUE_NONE, 'Show package paths'),
                new InputOption('tree', 't', InputOption::VALUE_NONE, 'List the dependencies as a tree'),
                new InputOption('latest', 'l', InputOption::VALUE_NONE, 'Show the latest version'),
                new InputOption('outdated', 'o', InputOption::VALUE_NONE, 'Show the latest version but only for packages that are outdated'),
                new InputOption('ignore', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Ignore specified package(s). Use it with the --outdated option if you don\'t want to be informed about new versions of some packages.'),
                new InputOption('minor-only', 'm', InputOption::VALUE_NONE, 'Show only packages that have minor SemVer-compatible updates. Use with the --outdated option.'),
                new InputOption('direct', 'D', InputOption::VALUE_NONE, 'Shows only packages that are directly required by the root package'),
                new InputOption('strict', null, InputOption::VALUE_NONE, 'Return a non-zero exit code when there are outdated packages'),
                new InputOption('format', 'f', InputOption::VALUE_REQUIRED, 'Format of the output: text or json', 'text'),
                new InputOption('no-dev', null, InputOption::VALUE_NONE, 'Disables search in require-dev packages.'),
                new InputOption('ignore-platform-req', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Ignore a specific platform requirement (php & ext- packages). Use with the --outdated option'),
                new InputOption('ignore-platform-reqs', null, InputOption::VALUE_NONE, 'Ignore all platform requirements (php & ext- packages). Use with the --outdated option'),
            ))
            ->setHelp(
                <<<EOT
The show command displays detailed information about a package, or
lists all packages available.

Read more at https://getcomposer.org/doc/03-cli.md#show
EOT
            )
        ;
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $this->versionParser = new VersionParser;
        if ($input->getOption('tree')) {
            $this->initStyles($output);
        }

        $composer = $this->getComposer(false);
        $io = $this->getIO();

        if ($input->getOption('installed')) {
            $io->writeError('<warning>You are using the deprecated option "installed". Only installed packages are shown by default now. The --all option can be used to show all packages.</warning>');
        }

        if ($input->getOption('outdated')) {
            $input->setOption('latest', true);
        } elseif ($input->getOption('ignore')) {
            $io->writeError('<warning>You are using the option "ignore" for action other than "outdated", it will be ignored.</warning>');
        }

        if ($input->getOption('direct') && ($input->getOption('all') || $input->getOption('available') || $input->getOption('platform'))) {
            $io->writeError('The --direct (-D) option is not usable in combination with --all, --platform (-p) or --available (-a)');

            return 1;
        }

        if ($input->getOption('tree') && ($input->getOption('all') || $input->getOption('available'))) {
            $io->writeError('The --tree (-t) option is not usable in combination with --all or --available (-a)');

            return 1;
        }

        if ($input->getOption('tree') && $input->getOption('latest')) {
            $io->writeError('The --tree (-t) option is not usable in combination with --latest (-l)');

            return 1;
        }

        if ($input->getOption('tree') && $input->getOption('path')) {
            $io->writeError('The --tree (-t) option is not usable in combination with --path (-P)');

            return 1;
        }

        $format = $input->getOption('format');
        if (!in_array($format, array('text', 'json'))) {
            $io->writeError(sprintf('Unsupported format "%s". See help for supported formats.', $format));

            return 1;
        }

        $ignorePlatformReqs = $input->getOption('ignore-platform-reqs') ?: ($input->getOption('ignore-platform-req') ?: false);

        // init repos
        $platformOverrides = array();
        if ($composer) {
            $platformOverrides = $composer->getConfig()->get('platform') ?: array();
        }
        $platformRepo = new PlatformRepository(array(), $platformOverrides);
        $lockedRepo = null;

        if ($input->getOption('self')) {
            $package = clone $this->getComposer()->getPackage();
            if ($input->getOption('name-only')) {
                $io->write($package->getName());

                return 0;
            }
            $repos = $installedRepo = new InstalledRepository(array(new RootPackageRepository($package)));
        } elseif ($input->getOption('platform')) {
            $repos = $installedRepo = new InstalledRepository(array($platformRepo));
        } elseif ($input->getOption('available')) {
            $installedRepo = new InstalledRepository(array($platformRepo));
            if ($composer) {
                $repos = new CompositeRepository($composer->getRepositoryManager()->getRepositories());
                $installedRepo->addRepository($composer->getRepositoryManager()->getLocalRepository());
            } else {
                $defaultRepos = RepositoryFactory::defaultRepos($io);
                $repos = new CompositeRepository($defaultRepos);
                $io->writeError('No composer.json found in the current directory, showing available packages from ' . implode(', ', array_keys($defaultRepos)));
            }
        } elseif ($input->getOption('all') && $composer) {
            $localRepo = $composer->getRepositoryManager()->getLocalRepository();
            $locker = $composer->getLocker();
            if ($locker->isLocked()) {
                $lockedRepo = $locker->getLockedRepository(true);
                $installedRepo = new InstalledRepository(array($lockedRepo, $localRepo, $platformRepo));
            } else {
                $installedRepo = new InstalledRepository(array($localRepo, $platformRepo));
            }
            $repos = new CompositeRepository(array_merge(array(new FilterRepository($installedRepo, array('canonical' => false))), $composer->getRepositoryManager()->getRepositories()));
        } elseif ($input->getOption('all')) {
            $defaultRepos = RepositoryFactory::defaultRepos($io);
            $io->writeError('No composer.json found in the current directory, showing available packages from ' . implode(', ', array_keys($defaultRepos)));
            $installedRepo = new InstalledRepository(array($platformRepo));
            $repos = new CompositeRepository(array_merge(array($installedRepo), $defaultRepos));
        } elseif ($input->getOption('locked')) {
            if (!$composer || !$composer->getLocker()->isLocked()) {
                throw new \UnexpectedValueException('A valid composer.json and composer.lock files is required to run this command with --locked');
            }
            $locker = $composer->getLocker();
            $lockedRepo = $locker->getLockedRepository(!$input->getOption('no-dev'));
            $repos = $installedRepo = new InstalledRepository(array($lockedRepo));
        } else {
            // --installed / default case
            if (!$composer) {
                $composer = $this->getComposer();
            }
            $rootPkg = $composer->getPackage();
            $repos = $installedRepo = new InstalledRepository(array($composer->getRepositoryManager()->getLocalRepository()));

            if ($input->getOption('no-dev')) {
                $packages = $this->filterRequiredPackages($installedRepo, $rootPkg);
                $repos = $installedRepo = new InstalledRepository(array(new InstalledArrayRepository(array_map(function ($pkg) {
                    return clone $pkg;
                }, $packages))));
            }

            if (!$installedRepo->getPackages() && ($rootPkg->getRequires() || $rootPkg->getDevRequires())) {
                $io->writeError('<warning>No dependencies installed. Try running composer install or update.</warning>');
            }
        }

        if ($composer) {
            $commandEvent = new CommandEvent(PluginEvents::COMMAND, 'show', $input, $output);
            $composer->getEventDispatcher()->dispatch($commandEvent->getName(), $commandEvent);
        }

        if ($input->getOption('latest') && null === $composer) {
            $io->writeError('No composer.json found in the current directory, disabling "latest" option');
            $input->setOption('latest', false);
        }

        $packageFilter = $input->getArgument('package');

        // show single package or single version
        if (($packageFilter && false === strpos($packageFilter, '*')) || !empty($package)) {
            if (empty($package)) {
                list($package, $versions) = $this->getPackage($installedRepo, $repos, $input->getArgument('package'), $input->getArgument('version'));

                if (empty($package)) {
                    $options = $input->getOptions();
                    $hint = '';
                    if ($input->getOption('locked')) {
                        $hint .= ' in lock file';
                    }
                    if (isset($options['working-dir'])) {
                        $hint .= ' in ' . $options['working-dir'] . '/composer.json';
                    }
                    if (PlatformRepository::isPlatformPackage($input->getArgument('package')) && !$input->getOption('platform')) {
                        $hint .= ', try using --platform (-p) to show platform packages';
                    }
                    if (!$input->getOption('all')) {
                        $hint .= ', try using --all (-a) to show all available packages';
                    }

                    throw new \InvalidArgumentException('Package "' . $packageFilter . '" not found'.$hint.'.');
                }
            } else {
                $versions = array($package->getPrettyVersion() => $package->getVersion());
            }

            $exitCode = 0;
            if ($input->getOption('tree')) {
                $arrayTree = $this->generatePackageTree($package, $installedRepo, $repos);

                if ('json' === $format) {
                    $io->write(JsonFile::encode(array('installed' => array($arrayTree))));
                } else {
                    $this->displayPackageTree(array($arrayTree));
                }
            } else {
                $latestPackage = null;
                if ($input->getOption('latest')) {
                    $latestPackage = $this->findLatestPackage($package, $composer, $platformRepo, $input->getOption('minor-only'), $ignorePlatformReqs);
                }
                if (
                    $input->getOption('outdated')
                    && $input->getOption('strict')
                    && $latestPackage
                    && $latestPackage->getFullPrettyVersion() !== $package->getFullPrettyVersion()
                    && (!$latestPackage instanceof CompletePackageInterface || !$latestPackage->isAbandoned())
                ) {
                    $exitCode = 1;
                }
                if ($input->getOption('path')) {
                    $io->write($package->getName(), false);
                    $io->write(' ' . strtok(realpath($composer->getInstallationManager()->getInstallPath($package)), "\r\n"));

                    return $exitCode;
                }

                if ('json' === $format) {
                    $this->printPackageInfoAsJson($package, $versions, $installedRepo, $latestPackage ?: null);
                } else {
                    $this->printPackageInfo($package, $versions, $installedRepo, $latestPackage ?: null);
                }
            }

            return $exitCode;
        }

        // show tree view if requested
        if ($input->getOption('tree')) {
            $rootRequires = $this->getRootRequires();
            $packages = $installedRepo->getPackages();
            usort($packages, function (BasePackage $a, BasePackage $b) {
                return strcmp((string) $a, (string) $b);
            });
            $arrayTree = array();
            foreach ($packages as $package) {
                if (in_array($package->getName(), $rootRequires, true)) {
                    $arrayTree[] = $this->generatePackageTree($package, $installedRepo, $repos);
                }
            }

            if ('json' === $format) {
                $io->write(JsonFile::encode(array('installed' => $arrayTree)));
            } else {
                $this->displayPackageTree($arrayTree);
            }

            return 0;
        }

        // list packages
        $packages = array();
        $packageFilterRegex = null;
        if (null !== $packageFilter) {
            $packageFilterRegex = '{^'.str_replace('\\*', '.*?', preg_quote($packageFilter)).'$}i';
        }

        $packageListFilter = array();
        if ($input->getOption('direct')) {
            $packageListFilter = $this->getRootRequires();
        }

        if ($input->getOption('path') && null === $composer) {
            $io->writeError('No composer.json found in the current directory, disabling "path" option');
            $input->setOption('path', false);
        }

        foreach ($repos->getRepositories() as $repo) {
            if ($repo === $platformRepo) {
                $type = 'platform';
            } elseif ($lockedRepo !== null && $repo === $lockedRepo) {
                $type = 'locked';
            } elseif ($repo === $installedRepo || in_array($repo, $installedRepo->getRepositories(), true)) {
                $type = 'installed';
            } else {
                $type = 'available';
            }
            if ($repo instanceof ComposerRepository) {
                foreach ($repo->getPackageNames($packageFilter) as $name) {
                    $packages[$type][$name] = $name;
                }
            } else {
                foreach ($repo->getPackages() as $package) {
                    if (!isset($packages[$type][$package->getName()])
                        || !is_object($packages[$type][$package->getName()])
                        || version_compare($packages[$type][$package->getName()]->getVersion(), $package->getVersion(), '<')
                    ) {
                        while ($package instanceof AliasPackage) {
                            $package = $package->getAliasOf();
                        }
                        if (!$packageFilterRegex || Preg::isMatch($packageFilterRegex, $package->getName())) {
                            if (!$packageListFilter || in_array($package->getName(), $packageListFilter, true)) {
                                $packages[$type][$package->getName()] = $package;
                            }
                        }
                    }
                }
                if ($repo === $platformRepo) {
                    foreach ($platformRepo->getDisabledPackages() as $name => $package) {
                        $packages[$type][$name] = $package;
                    }
                }
            }
        }

        $showAllTypes = $input->getOption('all');
        $showLatest = $input->getOption('latest');
        $showMinorOnly = $input->getOption('minor-only');
        $ignoredPackages = array_map('strtolower', $input->getOption('ignore'));
        $indent = $showAllTypes ? '  ' : '';
        /** @var PackageInterface[] $latestPackages */
        $latestPackages = array();
        $exitCode = 0;
        $viewData = array();
        $viewMetaData = array();
        foreach (array('platform' => true, 'locked' => true, 'available' => false, 'installed' => true) as $type => $showVersion) {
            if (isset($packages[$type])) {
                ksort($packages[$type]);

                $nameLength = $versionLength = $latestLength = 0;

                if ($showLatest && $showVersion) {
                    foreach ($packages[$type] as $package) {
                        if (is_object($package)) {
                            $latestPackage = $this->findLatestPackage($package, $composer, $platformRepo, $showMinorOnly, $ignorePlatformReqs);
                            if ($latestPackage === false) {
                                continue;
                            }

                            $latestPackages[$package->getPrettyName()] = $latestPackage;
                        }
                    }
                }

                $writePath = !$input->getOption('name-only') && $input->getOption('path');
                $writeVersion = !$input->getOption('name-only') && !$input->getOption('path') && $showVersion;
                $writeLatest = $writeVersion && $showLatest;
                $writeDescription = !$input->getOption('name-only') && !$input->getOption('path');

                $hasOutdatedPackages = false;

                $viewData[$type] = array();
                foreach ($packages[$type] as $package) {
                    $packageViewData = array();
                    if (is_object($package)) {
                        $latestPackage = null;
                        if ($showLatest && isset($latestPackages[$package->getPrettyName()])) {
                            $latestPackage = $latestPackages[$package->getPrettyName()];
                        }

                        // Determine if Composer is checking outdated dependencies and if current package should trigger non-default exit code
                        $packageIsUpToDate = $latestPackage && $latestPackage->getFullPrettyVersion() === $package->getFullPrettyVersion() && (!$latestPackage instanceof CompletePackageInterface || !$latestPackage->isAbandoned());
                        $packageIsIgnored = \in_array($package->getPrettyName(), $ignoredPackages, true);
                        if ($input->getOption('outdated') && ($packageIsUpToDate || $packageIsIgnored)) {
                            continue;
                        }

                        if ($input->getOption('outdated') || $input->getOption('strict')) {
                            $hasOutdatedPackages = true;
                        }

                        $packageViewData['name'] = $package->getPrettyName();
                        $nameLength = max($nameLength, strlen($package->getPrettyName()));
                        if ($writeVersion) {
                            $packageViewData['version'] = $package->getFullPrettyVersion();
                            $versionLength = max($versionLength, strlen($package->getFullPrettyVersion()));
                        }
                        if ($writeLatest && $latestPackage) {
                            $packageViewData['latest'] = $latestPackage->getFullPrettyVersion();
                            $packageViewData['latest-status'] = $this->getUpdateStatus($latestPackage, $package);
                            $latestLength = max($latestLength, strlen($latestPackage->getFullPrettyVersion()));
                        }
                        if ($writeDescription && $package instanceof CompletePackageInterface) {
                            $packageViewData['description'] = $package->getDescription();
                        }
                        if ($writePath) {
                            $packageViewData['path'] = strtok(realpath($composer->getInstallationManager()->getInstallPath($package)), "\r\n");
                        }

                        if ($latestPackage instanceof CompletePackageInterface && $latestPackage->isAbandoned()) {
                            $replacement = is_string($latestPackage->getReplacementPackage())
                                ? 'Use ' . $latestPackage->getReplacementPackage() . ' instead'
                                : 'No replacement was suggested';
                            $packageWarning = sprintf(
                                'Package %s is abandoned, you should avoid using it. %s.',
                                $package->getPrettyName(),
                                $replacement
                            );
                            $packageViewData['warning'] = $packageWarning;
                        }
                    } else {
                        $packageViewData['name'] = $package;
                        $nameLength = max($nameLength, strlen($package));
                    }
                    $viewData[$type][] = $packageViewData;
                }
                $viewMetaData[$type] = array(
                    'nameLength' => $nameLength,
                    'versionLength' => $versionLength,
                    'latestLength' => $latestLength,
                );
                if ($input->getOption('strict') && $hasOutdatedPackages) {
                    $exitCode = 1;
                    break;
                }
            }
        }

        if ('json' === $format) {
            $io->write(JsonFile::encode($viewData));
        } else {
            if ($input->getOption('latest') && array_filter($viewData)) {
                if (!$io->isDecorated()) {
                    $io->writeError('Legend:');
                    $io->writeError('! patch or minor release available - update recommended');
                    $io->writeError('~ major release available - update possible');
                    if (!$input->getOption('outdated')) {
                        $io->writeError('= up to date version');
                    }
                } else {
                    $io->writeError('<info>Color legend:</info>');
                    $io->writeError('- <highlight>patch or minor</highlight> release available - update recommended');
                    $io->writeError('- <comment>major</comment> release available - update possible');
                    if (!$input->getOption('outdated')) {
                        $io->writeError('- <info>up to date</info> version');
                    }
                }
            }

            $width = $this->getTerminalWidth();

            foreach ($viewData as $type => $packages) {
                $nameLength = $viewMetaData[$type]['nameLength'];
                $versionLength = $viewMetaData[$type]['versionLength'];
                $latestLength = $viewMetaData[$type]['latestLength'];

                $writeVersion = $nameLength + $versionLength + 3 <= $width;
                $writeLatest = $nameLength + $versionLength + $latestLength + 3 <= $width;
                $writeDescription = $nameLength + $versionLength + $latestLength + 24 <= $width;

                if ($writeLatest && !$io->isDecorated()) {
                    $latestLength += 2;
                }

                if ($showAllTypes) {
                    if ('available' === $type) {
                        $io->write('<comment>' . $type . '</comment>:');
                    } else {
                        $io->write('<info>' . $type . '</info>:');
                    }
                }

                foreach ($packages as $package) {
                    $io->write($indent . str_pad($package['name'], $nameLength, ' '), false);
                    if (isset($package['version']) && $writeVersion) {
                        $io->write(' ' . str_pad($package['version'], $versionLength, ' '), false);
                    }
                    if (isset($package['latest']) && $writeLatest) {
                        $latestVersion = $package['latest'];
                        $updateStatus = $package['latest-status'];
                        $style = $this->updateStatusToVersionStyle($updateStatus);
                        if (!$io->isDecorated()) {
                            $latestVersion = str_replace(array('up-to-date', 'semver-safe-update', 'update-possible'), array('=', '!', '~'), $updateStatus) . ' ' . $latestVersion;
                        }
                        $io->write(' <' . $style . '>' . str_pad($latestVersion, $latestLength, ' ') . '</' . $style . '>', false);
                    }
                    if (isset($package['description']) && $writeDescription) {
                        $description = strtok($package['description'], "\r\n");
                        $remaining = $width - $nameLength - $versionLength - 4;
                        if ($writeLatest) {
                            $remaining -= $latestLength;
                        }
                        if (strlen($description) > $remaining) {
                            $description = substr($description, 0, $remaining - 3) . '...';
                        }
                        $io->write(' ' . $description, false);
                    }
                    if (isset($package['path'])) {
                        $io->write(' ' . $package['path'], false);
                    }
                    $io->write('');
                    if (isset($package['warning'])) {
                        $io->write('<warning>' . $package['warning'] . '</warning>');
                    }
                }

                if ($showAllTypes) {
                    $io->write('');
                }
            }
        }

        return $exitCode;
    }

    /**
     * @return string[]
     */
    protected function getRootRequires()
    {
        $rootPackage = $this->getComposer()->getPackage();

        return array_map(
            'strtolower',
            array_keys(array_merge($rootPackage->getRequires(), $rootPackage->getDevRequires()))
        );
    }

    /**
     * @return array|string|string[]
     */
    protected function getVersionStyle(PackageInterface $latestPackage, PackageInterface $package)
    {
        return $this->updateStatusToVersionStyle($this->getUpdateStatus($latestPackage, $package));
    }

    /**
     * finds a package by name and version if provided
     *
     * @param  string                     $name
     * @param  ConstraintInterface|string $version
     * @throws \InvalidArgumentException
     * @return array{CompletePackageInterface|null, array<string, string>}
     */
    protected function getPackage(InstalledRepository $installedRepo, RepositoryInterface $repos, $name, $version = null)
    {
        $name = strtolower($name);
        $constraint = is_string($version) ? $this->versionParser->parseConstraints($version) : $version;

        $policy = new DefaultPolicy();
        $repositorySet = new RepositorySet('dev');
        $repositorySet->allowInstalledRepositories();
        $repositorySet->addRepository($repos);

        $matchedPackage = null;
        $versions = array();
        if (PlatformRepository::isPlatformPackage($name)) {
            $pool = $repositorySet->createPoolWithAllPackages();
        } else {
            $pool = $repositorySet->createPoolForPackage($name);
        }
        $matches = $pool->whatProvides($name, $constraint);
        foreach ($matches as $index => $package) {
            // avoid showing the 9999999-dev alias if the default branch has no branch-alias set
            if ($package instanceof AliasPackage && $package->getVersion() === VersionParser::DEFAULT_BRANCH_ALIAS) {
                $package = $package->getAliasOf();
            }

            // select an exact match if it is in the installed repo and no specific version was required
            if (null === $version && $installedRepo->hasPackage($package)) {
                $matchedPackage = $package;
            }

            $versions[$package->getPrettyVersion()] = $package->getVersion();
            $matches[$index] = $package->getId();
        }

        // select preferred package according to policy rules
        if (!$matchedPackage && $matches && $preferred = $policy->selectPreferredPackages($pool, $matches)) {
            $matchedPackage = $pool->literalToPackage($preferred[0]);
        }

        return array($matchedPackage, $versions);
    }

    /**
     * Prints package info.
     *
     * @param array<string, string>    $versions
     * @param PackageInterface|null    $latestPackage
     *
     * @return void
     */
    protected function printPackageInfo(CompletePackageInterface $package, array $versions, InstalledRepository $installedRepo, PackageInterface $latestPackage = null)
    {
        $io = $this->getIO();

        $this->printMeta($package, $versions, $installedRepo, $latestPackage ?: null);
        $this->printLinks($package, Link::TYPE_REQUIRE);
        $this->printLinks($package, Link::TYPE_DEV_REQUIRE, 'requires (dev)');

        if ($package->getSuggests()) {
            $io->write("\n<info>suggests</info>");
            foreach ($package->getSuggests() as $suggested => $reason) {
                $io->write($suggested . ' <comment>' . $reason . '</comment>');
            }
        }

        $this->printLinks($package, Link::TYPE_PROVIDE);
        $this->printLinks($package, Link::TYPE_CONFLICT);
        $this->printLinks($package, Link::TYPE_REPLACE);
    }

    /**
     * Prints package metadata.
     *
     * @param array<string, string>    $versions
     * @param PackageInterface|null    $latestPackage
     *
     * @return void
     */
    protected function printMeta(CompletePackageInterface $package, array $versions, InstalledRepository $installedRepo, PackageInterface $latestPackage = null)
    {
        $io = $this->getIO();
        $io->write('<info>name</info>     : ' . $package->getPrettyName());
        $io->write('<info>descrip.</info> : ' . $package->getDescription());
        $io->write('<info>keywords</info> : ' . implode(', ', $package->getKeywords() ?: array()));
        $this->printVersions($package, $versions, $installedRepo);
        if ($latestPackage) {
            $style = $this->getVersionStyle($latestPackage, $package);
            $io->write('<info>latest</info>   : <'.$style.'>' . $latestPackage->getPrettyVersion() . '</'.$style.'>');
        } else {
            $latestPackage = $package;
        }
        $io->write('<info>type</info>     : ' . $package->getType());
        $this->printLicenses($package);
        $io->write('<info>homepage</info> : ' . $package->getHomepage());
        $io->write('<info>source</info>   : ' . sprintf('[%s] <comment>%s</comment> %s', $package->getSourceType(), $package->getSourceUrl(), $package->getSourceReference()));
        $io->write('<info>dist</info>     : ' . sprintf('[%s] <comment>%s</comment> %s', $package->getDistType(), $package->getDistUrl(), $package->getDistReference()));
        if (!PlatformRepository::isPlatformPackage($package->getName()) && $installedRepo->hasPackage($package)) {
            $io->write('<info>path</info>     : ' . sprintf('%s', realpath($this->getComposer()->getInstallationManager()->getInstallPath($package))));
        }
        $io->write('<info>names</info>    : ' . implode(', ', $package->getNames()));

        if ($latestPackage instanceof CompletePackageInterface && $latestPackage->isAbandoned()) {
            $replacement = ($latestPackage->getReplacementPackage() !== null)
                ? ' The author suggests using the ' . $latestPackage->getReplacementPackage(). ' package instead.'
                : null;

            $io->writeError(
                sprintf('<warning>Attention: This package is abandoned and no longer maintained.%s</warning>', $replacement)
            );
        }

        if ($package->getSupport()) {
            $io->write("\n<info>support</info>");
            foreach ($package->getSupport() as $type => $value) {
                $io->write('<comment>' . $type . '</comment> : '.$value);
            }
        }

        if ($package->getAutoload()) {
            $io->write("\n<info>autoload</info>");
            $autoloadConfig = $package->getAutoload();
            foreach ($autoloadConfig as $type => $autoloads) {
                $io->write('<comment>' . $type . '</comment>');

                if ($type === 'psr-0' || $type === 'psr-4') {
                    foreach ($autoloads as $name => $path) {
                        $io->write(($name ?: '*') . ' => ' . (is_array($path) ? implode(', ', $path) : ($path ?: '.')));
                    }
                } elseif ($type === 'classmap') {
                    $io->write(implode(', ', $autoloadConfig[$type]));
                }
            }
            if ($package->getIncludePaths()) {
                $io->write('<comment>include-path</comment>');
                $io->write(implode(', ', $package->getIncludePaths()));
            }
        }
    }

    /**
     * Prints all available versions of this package and highlights the installed one if any.
     *
     * @param array<string, string> $versions
     *
     * @return void
     */
    protected function printVersions(CompletePackageInterface $package, array $versions, InstalledRepository $installedRepo)
    {
        $versions = array_keys($versions);
        $versions = Semver::rsort($versions);

        // highlight installed version
        if ($installedPackages = $installedRepo->findPackages($package->getName())) {
            foreach ($installedPackages as $installedPackage) {
                $installedVersion = $installedPackage->getPrettyVersion();
                $key = array_search($installedVersion, $versions);
                if (false !== $key) {
                    $versions[$key] = '<info>* ' . $installedVersion . '</info>';
                }
            }
        }

        $versions = implode(', ', $versions);

        $this->getIO()->write('<info>versions</info> : ' . $versions);
    }

    /**
     * print link objects
     *
     * @param string                   $linkType
     * @param string                   $title
     *
     * @return void
     */
    protected function printLinks(CompletePackageInterface $package, $linkType, $title = null)
    {
        $title = $title ?: $linkType;
        $io = $this->getIO();
        if ($links = $package->{'get'.ucfirst($linkType)}()) {
            $io->write("\n<info>" . $title . "</info>");

            foreach ($links as $link) {
                $io->write($link->getTarget() . ' <comment>' . $link->getPrettyConstraint() . '</comment>');
            }
        }
    }

    /**
     * Prints the licenses of a package with metadata
     *
     * @return void
     */
    protected function printLicenses(CompletePackageInterface $package)
    {
        $spdxLicenses = new SpdxLicenses();

        $licenses = $package->getLicense();
        $io = $this->getIO();

        foreach ($licenses as $licenseId) {
            $license = $spdxLicenses->getLicenseByIdentifier($licenseId); // keys: 0 fullname, 1 osi, 2 url

            if (!$license) {
                $out = $licenseId;
            } else {
                // is license OSI approved?
                if ($license[1] === true) {
                    $out = sprintf('%s (%s) (OSI approved) %s', $license[0], $licenseId, $license[2]);
                } else {
                    $out = sprintf('%s (%s) %s', $license[0], $licenseId, $license[2]);
                }
            }

            $io->write('<info>license</info>  : ' . $out);
        }
    }

    /**
     * Prints package info in JSON format.
     *
     * @param array<string, string>    $versions
     *
     * @return void
     */
    protected function printPackageInfoAsJson(CompletePackageInterface $package, array $versions, InstalledRepository $installedRepo, PackageInterface $latestPackage = null)
    {
        $json = array(
            'name' => $package->getPrettyName(),
            'description' => $package->getDescription(),
            'keywords' => $package->getKeywords() ?: array(),
            'type' => $package->getType(),
            'homepage' => $package->getHomepage(),
            'names' => $package->getNames(),
        );

        $json = $this->appendVersions($json, $versions);
        $json = $this->appendLicenses($json, $package);

        if ($latestPackage) {
            $json['latest'] = $latestPackage->getPrettyVersion();
        } else {
            $latestPackage = $package;
        }

        if ($package->getSourceType()) {
            $json['source'] = array(
                'type' => $package->getSourceType(),
                'url' => $package->getSourceUrl(),
                'reference' => $package->getSourceReference(),
            );
        }

        if ($package->getDistType()) {
            $json['dist'] = array(
                'type' => $package->getDistType(),
                'url' => $package->getDistUrl(),
                'reference' => $package->getDistReference(),
            );
        }

        if (!PlatformRepository::isPlatformPackage($package->getName()) && $installedRepo->hasPackage($package)) {
            $json['path'] = realpath($this->getComposer()->getInstallationManager()->getInstallPath($package));
            if ($json['path'] === false) {
                unset($json['path']);
            }
        }

        if ($latestPackage instanceof CompletePackageInterface && $latestPackage->isAbandoned()) {
            $json['replacement'] = $latestPackage->getReplacementPackage();
        }

        if ($package->getSuggests()) {
            $json['suggests'] = $package->getSuggests();
        }

        if ($package->getSupport()) {
            $json['support'] = $package->getSupport();
        }

        $json = $this->appendAutoload($json, $package);

        if ($package->getIncludePaths()) {
            $json['include_path'] = $package->getIncludePaths();
        }

        $json = $this->appendLinks($json, $package);

        $this->getIO()->write(JsonFile::encode($json));
    }

    /**
     * @param array<string, string|string[]|null> $json
     * @param array<string, string> $versions
     * @return array<string, string|string[]|null>
     */
    private function appendVersions($json, array $versions)
    {
        uasort($versions, 'version_compare');
        $versions = array_keys(array_reverse($versions));
        $json['versions'] = $versions;

        return $json;
    }

    /**
     * @param array<string, string|string[]|null> $json
     * @return array<string, string|string[]|null>
     */
    private function appendLicenses($json, CompletePackageInterface $package)
    {
        if ($licenses = $package->getLicense()) {
            $spdxLicenses = new SpdxLicenses();

            $json['licenses'] = array_map(function ($licenseId) use ($spdxLicenses) {
                $license = $spdxLicenses->getLicenseByIdentifier($licenseId); // keys: 0 fullname, 1 osi, 2 url

                if (!$license) {
                    return $licenseId;
                }

                return array(
                    'name' => $license[0],
                    'osi' => $licenseId,
                    'url' => $license[2],
                );
            }, $licenses);
        }

        return $json;
    }

    /**
     * @param array<string, string|string[]|null> $json
     * @return array<string, string|string[]|null>
     */
    private function appendAutoload($json, CompletePackageInterface $package)
    {
        if ($package->getAutoload()) {
            $autoload = array();

            foreach ($package->getAutoload() as $type => $autoloads) {
                if ($type === 'psr-0' || $type === 'psr-4') {
                    $psr = array();

                    foreach ($autoloads as $name => $path) {
                        if (!$path) {
                            $path = '.';
                        }

                        $psr[$name ?: '*'] = $path;
                    }

                    $autoload[$type] = $psr;
                } elseif ($type === 'classmap') {
                    $autoload['classmap'] = $autoloads;
                }
            }

            $json['autoload'] = $autoload;
        }

        return $json;
    }

    /**
     * @param array<string, string|string[]|null> $json
     * @return array<string, string|string[]|null>
     */
    private function appendLinks($json, CompletePackageInterface $package)
    {
        foreach (Link::$TYPES as $linkType) {
            $json = $this->appendLink($json, $package, $linkType);
        }

        return $json;
    }

    /**
     * @param array<string, string|string[]|null> $json
     * @param string $linkType
     * @return array<string, string|string[]|null>
     */
    private function appendLink($json, CompletePackageInterface $package, $linkType)
    {
        $links = $package->{'get' . ucfirst($linkType)}();

        if ($links) {
            $json[$linkType] = array();

            foreach ($links as $link) {
                $json[$linkType][$link->getTarget()] = $link->getPrettyConstraint();
            }
        }

        return $json;
    }

    /**
     * Init styles for tree
     *
     * @return void
     */
    protected function initStyles(OutputInterface $output)
    {
        $this->colors = array(
            'green',
            'yellow',
            'cyan',
            'magenta',
            'blue',
        );

        foreach ($this->colors as $color) {
            $style = new OutputFormatterStyle($color);
            $output->getFormatter()->setStyle($color, $style);
        }
    }

    /**
     * Display the tree
     *
     * @param array<int, array<string, string|mixed[]>> $arrayTree
     * @return void
     */
    protected function displayPackageTree(array $arrayTree)
    {
        $io = $this->getIO();
        foreach ($arrayTree as $package) {
            $io->write(sprintf('<info>%s</info>', $package['name']), false);
            $io->write(' ' . $package['version'], false);
            $io->write(' ' . strtok($package['description'], "\r\n"));

            if (isset($package['requires'])) {
                $requires = $package['requires'];
                $treeBar = '├';
                $j = 0;
                $total = count($requires);
                foreach ($requires as $require) {
                    $requireName = $require['name'];
                    $j++;
                    if ($j === $total) {
                        $treeBar = '└';
                    }
                    $level = 1;
                    $color = $this->colors[$level];
                    $info = sprintf(
                        '%s──<%s>%s</%s> %s',
                        $treeBar,
                        $color,
                        $requireName,
                        $color,
                        $require['version']
                    );
                    $this->writeTreeLine($info);

                    $treeBar = str_replace('└', ' ', $treeBar);
                    $packagesInTree = array($package['name'], $requireName);

                    $this->displayTree($require, $packagesInTree, $treeBar, $level + 1);
                }
            }
        }
    }

    /**
     * Generate the package tree
     *
     * @return array<string, array<int, array<string, mixed[]|string>>|string|null>
     */
    protected function generatePackageTree(
        PackageInterface $package,
        InstalledRepository $installedRepo,
        RepositoryInterface $remoteRepos
    ) {
        $requires = $package->getRequires();
        ksort($requires);
        $children = array();
        foreach ($requires as $requireName => $require) {
            $packagesInTree = array($package->getName(), $requireName);

            $treeChildDesc = array(
                'name' => $requireName,
                'version' => $require->getPrettyConstraint(),
            );

            $deepChildren = $this->addTree($requireName, $require, $installedRepo, $remoteRepos, $packagesInTree);

            if ($deepChildren) {
                $treeChildDesc['requires'] = $deepChildren;
            }

            $children[] = $treeChildDesc;
        }
        $tree = array(
            'name' => $package->getPrettyName(),
            'version' => $package->getPrettyVersion(),
            'description' => $package instanceof CompletePackageInterface ? $package->getDescription() : '',
        );

        if ($children) {
            $tree['requires'] = $children;
        }

        return $tree;
    }

    /**
     * Display a package tree
     *
     * @param array<string, array<int, array<string, mixed[]|string>>|string|null>|string $package
     * @param array<int, string|mixed[]> $packagesInTree
     * @param string $previousTreeBar
     * @param int $level
     *
     * @return void
     */
    protected function displayTree(
        $package,
        array $packagesInTree,
        $previousTreeBar = '├',
        $level = 1
    ) {
        $previousTreeBar = str_replace('├', '│', $previousTreeBar);
        if (is_array($package) && isset($package['requires'])) {
            $requires = $package['requires'];
            $treeBar = $previousTreeBar . '  ├';
            $i = 0;
            $total = count($requires);
            foreach ($requires as $require) {
                $currentTree = $packagesInTree;
                $i++;
                if ($i === $total) {
                    $treeBar = $previousTreeBar . '  └';
                }
                $colorIdent = $level % count($this->colors);
                $color = $this->colors[$colorIdent];

                $circularWarn = in_array(
                    $require['name'],
                    $currentTree,
                    true
                ) ? '(circular dependency aborted here)' : '';
                $info = rtrim(sprintf(
                    '%s──<%s>%s</%s> %s %s',
                    $treeBar,
                    $color,
                    $require['name'],
                    $color,
                    $require['version'],
                    $circularWarn
                ));
                $this->writeTreeLine($info);

                $treeBar = str_replace('└', ' ', $treeBar);

                $currentTree[] = $require['name'];
                $this->displayTree($require, $currentTree, $treeBar, $level + 1);
            }
        }
    }

    /**
     * Display a package tree
     *
     * @param  string   $name
     * @param  string[] $packagesInTree
     * @return array<int, array<string, array<int, array<string, string>>|string>>
     */
    protected function addTree(
        $name,
        Link $link,
        InstalledRepository $installedRepo,
        RepositoryInterface $remoteRepos,
        array $packagesInTree
    ) {
        $children = array();
        list($package) = $this->getPackage(
            $installedRepo,
            $remoteRepos,
            $name,
            $link->getPrettyConstraint() === 'self.version' ? $link->getConstraint() : $link->getPrettyConstraint()
        );
        if (is_object($package)) {
            $requires = $package->getRequires();
            ksort($requires);
            foreach ($requires as $requireName => $require) {
                $currentTree = $packagesInTree;

                $treeChildDesc = array(
                    'name' => $requireName,
                    'version' => $require->getPrettyConstraint(),
                );

                if (!in_array($requireName, $currentTree, true)) {
                    $currentTree[] = $requireName;
                    $deepChildren = $this->addTree($requireName, $require, $installedRepo, $remoteRepos, $currentTree);
                    if ($deepChildren) {
                        $treeChildDesc['requires'] = $deepChildren;
                    }
                }

                $children[] = $treeChildDesc;
            }
        }

        return $children;
    }

    /**
     * @param string $updateStatus
     * @return string
     */
    private function updateStatusToVersionStyle($updateStatus)
    {
        // 'up-to-date' is printed green
        // 'semver-safe-update' is printed red
        // 'update-possible' is printed yellow
        return str_replace(array('up-to-date', 'semver-safe-update', 'update-possible'), array('info', 'highlight', 'comment'), $updateStatus);
    }

    /**
     * @return string
     */
    private function getUpdateStatus(PackageInterface $latestPackage, PackageInterface $package)
    {
        if ($latestPackage->getFullPrettyVersion() === $package->getFullPrettyVersion()) {
            return 'up-to-date';
        }

        $constraint = $package->getVersion();
        if (0 !== strpos($constraint, 'dev-')) {
            $constraint = '^'.$constraint;
        }
        if ($latestPackage->getVersion() && Semver::satisfies($latestPackage->getVersion(), $constraint)) {
            // it needs an immediate semver-compliant upgrade
            return 'semver-safe-update';
        }

        // it needs an upgrade but has potential BC breaks so is not urgent
        return 'update-possible';
    }

    /**
     * @param string $line
     *
     * @return void
     */
    private function writeTreeLine($line)
    {
        $io = $this->getIO();
        if (!$io->isDecorated()) {
            $line = str_replace(array('└', '├', '──', '│'), array('`-', '|-', '-', '|'), $line);
        }

        $io->write($line);
    }

    /**
     * Given a package, this finds the latest package matching it
     *
     * @param bool $minorOnly
     * @param bool|string $ignorePlatformReqs
     *
     * @return PackageInterface|false
     */
    private function findLatestPackage(PackageInterface $package, Composer $composer, PlatformRepository $platformRepo, $minorOnly = false, $ignorePlatformReqs = false)
    {
        // find the latest version allowed in this repo set
        $name = $package->getName();
        $versionSelector = new VersionSelector($this->getRepositorySet($composer), $platformRepo);
        $stability = $composer->getPackage()->getMinimumStability();
        $flags = $composer->getPackage()->getStabilityFlags();
        if (isset($flags[$name])) {
            $stability = array_search($flags[$name], BasePackage::$stabilities, true);
        }

        $bestStability = $stability;
        if ($composer->getPackage()->getPreferStable()) {
            $bestStability = $package->getStability();
        }

        $targetVersion = null;
        if (0 === strpos($package->getVersion(), 'dev-')) {
            $targetVersion = $package->getVersion();
        }

        if ($targetVersion === null && $minorOnly) {
            $targetVersion = '^' . $package->getVersion();
        }

        $candidate = $versionSelector->findBestCandidate($name, $targetVersion, $bestStability, PlatformRequirementFilterFactory::fromBoolOrList($ignorePlatformReqs));
        while ($candidate instanceof AliasPackage) {
            $candidate = $candidate->getAliasOf();
        }

        return $candidate;
    }

    /**
     * @return RepositorySet
     */
    private function getRepositorySet(Composer $composer)
    {
        if (!$this->repositorySet) {
            $this->repositorySet = new RepositorySet($composer->getPackage()->getMinimumStability(), $composer->getPackage()->getStabilityFlags());
            $this->repositorySet->addRepository(new CompositeRepository($composer->getRepositoryManager()->getRepositories()));
        }

        return $this->repositorySet;
    }

    /**
     * Find package requires and child requires
     *
     * @param  array<PackageInterface> $bucket
     * @return array<PackageInterface>
     */
    private function filterRequiredPackages(RepositoryInterface $repo, PackageInterface $package, $bucket = array())
    {
        $requires = $package->getRequires();

        foreach ($repo->getPackages() as $candidate) {
            foreach ($candidate->getNames() as $name) {
                if (isset($requires[$name])) {
                    if (!in_array($candidate, $bucket, true)) {
                        $bucket[] = $candidate;
                        $bucket = $this->filterRequiredPackages($repo, $candidate, $bucket);
                    }
                    break;
                }
            }
        }

        return $bucket;
    }
}
Name	Size	Permission
AboutCommand.php	1308 bytes	0644
ArchiveCommand.php	7815 bytes	0644
BaseCommand.php	10355 bytes	0644
BaseDependencyCommand.php	9100 bytes	0644
CheckPlatformReqsCommand.php	8009 bytes	0644
ClearCacheCommand.php	2296 bytes	0644
ConfigCommand.php	35185 bytes	0644
CreateProjectCommand.php	24747 bytes	0644
DependsCommand.php	1820 bytes	0644
DiagnoseCommand.php	28887 bytes	0644
DumpAutoloadCommand.php	5285 bytes	0644
ExecCommand.php	3539 bytes	0644
FundCommand.php	5412 bytes	0644
GlobalCommand.php	4007 bytes	0644
HomeCommand.php	5652 bytes	0644
InitCommand.php	45986 bytes	0644
InstallCommand.php	7733 bytes	0644
LicensesCommand.php	7415 bytes	0644
OutdatedCommand.php	5084 bytes	0644
ProhibitsCommand.php	2006 bytes	0644
ReinstallCommand.php	8552 bytes	0644
RemoveCommand.php	14381 bytes	0644
RequireCommand.php	22863 bytes	0644
RunScriptCommand.php	5223 bytes	0644
ScriptAliasCommand.php	2199 bytes	0644
SearchCommand.php	4799 bytes	0644
SelfUpdateCommand.php	26293 bytes	0644
ShowCommand.php	55499 bytes	0644
StatusCommand.php	8495 bytes	0644
SuggestsCommand.php	4081 bytes	0644
UpdateCommand.php	16773 bytes	0644
ValidateCommand.php	11564 bytes	0644
File Content: ShowCommand.php

File Content: `ShowCommand.php`
