Na}{

File Content: `InstallCommand.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\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
use Composer\Installer;
use Composer\Plugin\CommandEvent;
use Composer\Plugin\PluginEvents;
use Composer\Util\HttpDownloader;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Output\OutputInterface;

/**
 * @author Jordi Boggiano <j.boggiano@seld.be>
 * @author Ryan Weaver <ryan@knplabs.com>
 * @author Konstantin Kudryashov <ever.zet@gmail.com>
 * @author Nils Adermann <naderman@naderman.de>
 */
class InstallCommand extends BaseCommand
{
    /**
     * @return void
     */
    protected function configure()
    {
        $this
            ->setName('install')
            ->setAliases(array('i'))
            ->setDescription('Installs the project dependencies from the composer.lock file if present, or falls back on the composer.json.')
            ->setDefinition(array(
                new InputOption('prefer-source', null, InputOption::VALUE_NONE, 'Forces installation from package sources when possible, including VCS information.'),
                new InputOption('prefer-dist', null, InputOption::VALUE_NONE, 'Forces installation from package dist (default behavior).'),
                new InputOption('prefer-install', null, InputOption::VALUE_REQUIRED, 'Forces installation from package dist|source|auto (auto chooses source for dev versions, dist for the rest).'),
                new InputOption('dry-run', null, InputOption::VALUE_NONE, 'Outputs the operations but will not execute anything (implicitly enables --verbose).'),
                new InputOption('dev', null, InputOption::VALUE_NONE, 'DEPRECATED: Enables installation of require-dev packages (enabled by default, only present for BC).'),
                new InputOption('no-suggest', null, InputOption::VALUE_NONE, 'DEPRECATED: This flag does not exist anymore.'),
                new InputOption('no-dev', null, InputOption::VALUE_NONE, 'Disables installation of require-dev packages.'),
                new InputOption('no-autoloader', null, InputOption::VALUE_NONE, 'Skips autoloader generation'),
                new InputOption('no-progress', null, InputOption::VALUE_NONE, 'Do not output download progress.'),
                new InputOption('no-install', null, InputOption::VALUE_NONE, 'Do not use, only defined here to catch misuse of the install command.'),
                new InputOption('verbose', 'v|vv|vvv', InputOption::VALUE_NONE, 'Shows more details including new commits pulled in when updating packages.'),
                new InputOption('optimize-autoloader', 'o', InputOption::VALUE_NONE, 'Optimize autoloader during autoloader dump'),
                new InputOption('classmap-authoritative', 'a', InputOption::VALUE_NONE, 'Autoload classes from the classmap only. Implicitly enables `--optimize-autoloader`.'),
                new InputOption('apcu-autoloader', null, InputOption::VALUE_NONE, 'Use APCu to cache found/not-found classes.'),
                new InputOption('apcu-autoloader-prefix', null, InputOption::VALUE_REQUIRED, 'Use a custom prefix for the APCu autoloader cache. Implicitly enables --apcu-autoloader'),
                new InputOption('ignore-platform-req', null, InputOption::VALUE_REQUIRED | InputOption::VALUE_IS_ARRAY, 'Ignore a specific platform requirement (php & ext- packages).'),
                new InputOption('ignore-platform-reqs', null, InputOption::VALUE_NONE, 'Ignore all platform requirements (php & ext- packages).'),
                new InputArgument('packages', InputArgument::IS_ARRAY | InputArgument::OPTIONAL, 'Should not be provided, use composer require instead to add a given package to composer.json.'),
            ))
            ->setHelp(
                <<<EOT
The <info>install</info> command reads the composer.lock file from
the current directory, processes it, and downloads and installs all the
libraries and dependencies outlined in that file. If the file does not
exist it will look for composer.json and do the same.

<info>php composer.phar install</info>

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

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $io = $this->getIO();
        if ($input->getOption('dev')) {
            $io->writeError('<warning>You are using the deprecated option "--dev". It has no effect and will break in Composer 3.</warning>');
        }
        if ($input->getOption('no-suggest')) {
            $io->writeError('<warning>You are using the deprecated option "--no-suggest". It has no effect and will break in Composer 3.</warning>');
        }

        if ($args = $input->getArgument('packages')) {
            $io->writeError('<error>Invalid argument '.implode(' ', $args).'. Use "composer require '.implode(' ', $args).'" instead to add packages to your composer.json.</error>');

            return 1;
        }

        if ($input->getOption('no-install')) {
            $io->writeError('<error>Invalid option "--no-install". Use "composer update --no-install" instead if you are trying to update the composer.lock file.</error>');

            return 1;
        }

        $composer = $this->getComposer(true, $input->getOption('no-plugins'), $input->getOption('no-scripts'));

        if ((!$composer->getLocker() || !$composer->getLocker()->isLocked()) && !HttpDownloader::isCurlEnabled()) {
            $io->writeError('<warning>Composer is operating significantly slower than normal because you do not have the PHP curl extension enabled.</warning>');
        }

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

        $install = Installer::create($io, $composer);

        $config = $composer->getConfig();
        list($preferSource, $preferDist) = $this->getPreferredInstallOptions($config, $input);

        $optimize = $input->getOption('optimize-autoloader') || $config->get('optimize-autoloader');
        $authoritative = $input->getOption('classmap-authoritative') || $config->get('classmap-authoritative');
        $apcuPrefix = $input->getOption('apcu-autoloader-prefix');
        $apcu = $apcuPrefix !== null || $input->getOption('apcu-autoloader') || $config->get('apcu-autoloader');

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

        $composer->getInstallationManager()->setOutputProgress(!$input->getOption('no-progress'));

        $install
            ->setDryRun($input->getOption('dry-run'))
            ->setVerbose($input->getOption('verbose'))
            ->setPreferSource($preferSource)
            ->setPreferDist($preferDist)
            ->setDevMode(!$input->getOption('no-dev'))
            ->setDumpAutoloader(!$input->getOption('no-autoloader'))
            ->setOptimizeAutoloader($optimize)
            ->setClassMapAuthoritative($authoritative)
            ->setApcuAutoloader($apcu, $apcuPrefix)
            ->setPlatformRequirementFilter(PlatformRequirementFilterFactory::fromBoolOrList($ignorePlatformReqs))
        ;

        if ($input->getOption('no-plugins')) {
            $install->disablePlugins();
        }

        return $install->run();
    }
}

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: InstallCommand.php

File Content: `InstallCommand.php`