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Installer.php
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Installer.php
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<?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;
use Composer\Autoload\AutoloadGenerator;
use Composer\DependencyResolver\DefaultPolicy;
use Composer\DependencyResolver\Operation\UpdateOperation;
use Composer\DependencyResolver\Pool;
use Composer\DependencyResolver\Request;
use Composer\DependencyResolver\Solver;
use Composer\DependencyResolver\SolverProblemsException;
use Composer\Downloader\DownloadManager;
use Composer\Installer\InstallationManager;
use Composer\IO\IOInterface;
use Composer\Package\AliasPackage;
use Composer\Package\Link;
use Composer\Package\LinkConstraint\VersionConstraint;
use Composer\Package\Locker;
use Composer\Package\PackageInterface;
use Composer\Repository\CompositeRepository;
use Composer\Repository\PlatformRepository;
use Composer\Repository\RepositoryInterface;
use Composer\Repository\RepositoryManager;
use Composer\Script\EventDispatcher;
use Composer\Script\ScriptEvents;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author Beau Simensen <beau@dflydev.com>
* @author Konstantin Kudryashov <ever.zet@gmail.com>
*/
class Installer
{
/**
* @var IOInterface
*/
protected $io;
/**
* @var PackageInterface
*/
protected $package;
/**
* @var DownloadManager
*/
protected $downloadManager;
/**
* @var RepositoryManager
*/
protected $repositoryManager;
/**
* @var Locker
*/
protected $locker;
/**
* @var InstallationManager
*/
protected $installationManager;
/**
* @var EventDispatcher
*/
protected $eventDispatcher;
protected $preferSource = false;
protected $devMode = false;
protected $dryRun = false;
protected $verbose = false;
protected $update = false;
/**
* @var array
*/
protected $suggestedPackages;
/**
* @var RepositoryInterface
*/
protected $additionalInstalledRepository;
/**
* Constructor
*
* @param IOInterface $io
* @param PackageInterface $package
* @param DownloadManager $downloadManager
* @param RepositoryManager $repositoryManager
* @param Locker $locker
* @param InstallationManager $installationManager
* @param EventDispatcher $eventDispatcher
*/
public function __construct(IOInterface $io, PackageInterface $package, DownloadManager $downloadManager, RepositoryManager $repositoryManager, Locker $locker, InstallationManager $installationManager, EventDispatcher $eventDispatcher)
{
$this->io = $io;
$this->package = $package;
$this->downloadManager = $downloadManager;
$this->repositoryManager = $repositoryManager;
$this->locker = $locker;
$this->installationManager = $installationManager;
$this->eventDispatcher = $eventDispatcher;
}
/**
* Run installation (or update)
*/
public function run()
{
if ($this->dryRun) {
$this->verbose = true;
}
if ($this->preferSource) {
$this->downloadManager->setPreferSource(true);
}
// create installed repo, this contains all local packages + platform packages (php & extensions)
$repos = array_merge($this->repositoryManager->getLocalRepositories(), array(new PlatformRepository()));
$installedRepo = new CompositeRepository($repos);
if ($this->additionalInstalledRepository) {
$installedRepo->addRepository($this->additionalInstalledRepository);
}
$aliases = $this->aliasPackages();
if (!$this->dryRun) {
// dispatch pre event
$eventName = $this->update ? ScriptEvents::PRE_UPDATE_CMD : ScriptEvents::PRE_INSTALL_CMD;
$this->eventDispatcher->dispatchCommandEvent($eventName);
}
$this->suggestedPackages = array();
if (!$this->doInstall($this->repositoryManager->getLocalRepository(), $installedRepo, $aliases)) {
return false;
}
if ($this->devMode) {
if (!$this->doInstall($this->repositoryManager->getLocalDevRepository(), $installedRepo, $aliases, true)) {
return false;
}
}
// output suggestions
foreach ($this->suggestedPackages as $suggestion) {
if (!$installedRepo->findPackages($suggestion['target'])) {
$this->io->write($suggestion['source'].' suggests installing '.$suggestion['target'].' ('.$suggestion['reason'].')');
}
}
if (!$this->dryRun) {
// write lock
if ($this->update || !$this->locker->isLocked()) {
$updatedLock = $this->locker->setLockData(
$this->repositoryManager->getLocalRepository()->getPackages(),
$this->devMode ? $this->repositoryManager->getLocalDevRepository()->getPackages() : null,
$aliases
);
if ($updatedLock) {
$this->io->write('<info>Writing lock file</info>');
}
}
// write autoloader
$this->io->write('<info>Generating autoload files</info>');
$generator = new AutoloadGenerator;
$localRepos = new CompositeRepository($this->repositoryManager->getLocalRepositories());
$generator->dump($localRepos, $this->package, $this->installationManager, $this->installationManager->getVendorPath() . '/composer', true);
// dispatch post event
$eventName = $this->update ? ScriptEvents::POST_UPDATE_CMD : ScriptEvents::POST_INSTALL_CMD;
$this->eventDispatcher->dispatchCommandEvent($eventName);
}
return true;
}
protected function doInstall($localRepo, $installedRepo, $aliases, $devMode = false)
{
// initialize locker to create aliased packages
if (!$this->update && $this->locker->isLocked($devMode)) {
$lockedPackages = $this->locker->getLockedPackages($devMode);
}
// creating repository pool
$pool = new Pool;
$pool->addRepository($installedRepo);
foreach ($this->repositoryManager->getRepositories() as $repository) {
$pool->addRepository($repository);
}
// creating requirements request
$installFromLock = false;
$request = new Request($pool);
if ($this->update) {
$this->io->write('<info>Updating '.($devMode ? 'dev ': '').'dependencies</info>');
$request->updateAll();
$links = $devMode ? $this->package->getDevRequires() : $this->package->getRequires();
foreach ($links as $link) {
$request->install($link->getTarget(), $link->getConstraint());
}
} elseif ($this->locker->isLocked($devMode)) {
$installFromLock = true;
$this->io->write('<info>Installing '.($devMode ? 'dev ': '').'dependencies from lock file</info>');
if (!$this->locker->isFresh() && !$devMode) {
$this->io->write('<warning>Your lock file is out of sync with your composer.json, run "composer.phar update" to update dependencies</warning>');
}
foreach ($lockedPackages as $package) {
$version = $package->getVersion();
foreach ($aliases as $alias) {
if ($alias['package'] === $package->getName() && $alias['version'] === $package->getVersion()) {
$version = $alias['alias'];
break;
}
}
$constraint = new VersionConstraint('=', $version);
$request->install($package->getName(), $constraint);
}
} else {
$this->io->write('<info>Installing '.($devMode ? 'dev ': '').'dependencies</info>');
$links = $devMode ? $this->package->getDevRequires() : $this->package->getRequires();
foreach ($links as $link) {
$request->install($link->getTarget(), $link->getConstraint());
}
}
// fix the version of all installed packages (+ platform) that are not
// in the current local repo to prevent rogue updates (e.g. non-dev
// updating when in dev)
foreach ($installedRepo->getPackages() as $package) {
if ($package->getRepository() === $localRepo) {
continue;
}
$constraint = new VersionConstraint('=', $package->getVersion());
$request->install($package->getName(), $constraint);
}
// prepare solver
$policy = new DefaultPolicy();
$solver = new Solver($policy, $pool, $installedRepo);
// solve dependencies
try {
$operations = $solver->solve($request);
} catch (SolverProblemsException $e) {
$this->io->write('<error>Your requirements could not be solved to an installable set of packages.</error>');
$this->io->write($e->getMessage());
return false;
}
// force dev packages to be updated if we update or install from a (potentially new) lock
if ($this->update || $installFromLock) {
foreach ($localRepo->getPackages() as $package) {
// skip non-dev packages
if (!$package->isDev()) {
continue;
}
// skip packages that will be updated/uninstalled
foreach ($operations as $operation) {
if (('update' === $operation->getJobType() && $operation->getInitialPackage()->equals($package))
|| ('uninstall' === $operation->getJobType() && $operation->getPackage()->equals($package))
) {
continue 2;
}
}
// force update to latest on update
if ($this->update) {
$newPackage = $this->repositoryManager->findPackage($package->getName(), $package->getVersion());
if ($newPackage && $newPackage->getSourceReference() !== $package->getSourceReference()) {
$operations[] = new UpdateOperation($package, $newPackage);
}
} elseif ($installFromLock) {
// force update to locked version if it does not match the installed version
$lockData = $this->locker->getLockData();
unset($lockedReference);
foreach ($lockData['packages'] as $lockedPackage) {
if (!empty($lockedPackage['source-reference']) && strtolower($lockedPackage['package']) === $package->getName()) {
$lockedReference = $lockedPackage['source-reference'];
break;
}
}
if (isset($lockedReference) && $lockedReference !== $package->getSourceReference()) {
// changing the source ref to update to will be handled in the operations loop below
$operations[] = new UpdateOperation($package, $package);
}
}
}
}
// anti-alias local repository to allow updates to work fine
foreach ($localRepo->getPackages() as $package) {
if ($package instanceof AliasPackage) {
$package->getRepository()->addPackage(clone $package->getAliasOf());
$package->getRepository()->removePackage($package);
}
}
// execute operations
if (!$operations) {
$this->io->write('Nothing to install or update');
}
foreach ($operations as $operation) {
if ($this->verbose) {
$this->io->write((string) $operation);
}
// collect suggestions
if ('install' === $operation->getJobType()) {
foreach ($operation->getPackage()->getSuggests() as $target => $reason) {
$this->suggestedPackages[] = array(
'source' => $operation->getPackage()->getPrettyName(),
'target' => $target,
'reason' => $reason,
);
}
}
if (!$this->dryRun) {
$this->eventDispatcher->dispatchPackageEvent(constant('Composer\Script\ScriptEvents::PRE_PACKAGE_'.strtoupper($operation->getJobType())), $operation);
// if installing from lock, restore dev packages' references to their locked state
if ($installFromLock) {
$package = null;
if ('update' === $operation->getJobType()) {
$package = $operation->getTargetPackage();
} elseif ('install' === $operation->getJobType()) {
$package = $operation->getPackage();
}
if ($package && $package->isDev()) {
$lockData = $this->locker->getLockData();
foreach ($lockData['packages'] as $lockedPackage) {
if (!empty($lockedPackage['source-reference']) && strtolower($lockedPackage['package']) === $package->getName()) {
$package->setSourceReference($lockedPackage['source-reference']);
break;
}
}
}
}
$this->installationManager->execute($localRepo, $operation);
$this->eventDispatcher->dispatchPackageEvent(constant('Composer\Script\ScriptEvents::POST_PACKAGE_'.strtoupper($operation->getJobType())), $operation);
$localRepo->write();
}
}
// reload local repository for the dev pass to work ok with aliases since it was anti-aliased above
if (!$devMode) {
$localRepo->reload();
}
return true;
}
private function aliasPackages()
{
if (!$this->update && $this->locker->isLocked()) {
$aliases = $this->locker->getAliases();
} else {
$aliases = $this->package->getAliases();
}
foreach ($aliases as $alias) {
foreach ($this->repositoryManager->findPackages($alias['package'], $alias['version']) as $package) {
$package->setAlias($alias['alias_normalized']);
$package->setPrettyAlias($alias['alias']);
$package->getRepository()->addPackage($aliasPackage = new AliasPackage($package, $alias['alias_normalized'], $alias['alias']));
$aliasPackage->setRootPackageAlias(true);
}
foreach ($this->repositoryManager->getLocalRepositories() as $repo) {
foreach ($repo->findPackages($alias['package'], $alias['version']) as $package) {
$package->setAlias($alias['alias_normalized']);
$package->setPrettyAlias($alias['alias']);
$package->getRepository()->addPackage($aliasPackage = new AliasPackage($package, $alias['alias_normalized'], $alias['alias']));
$package->getRepository()->removePackage($package);
$aliasPackage->setRootPackageAlias(true);
}
}
}
return $aliases;
}
/**
* Create Installer
*
* @param IOInterface $io
* @param Composer $composer
* @param EventDispatcher $eventDispatcher
* @return Installer
*/
static public function create(IOInterface $io, Composer $composer, EventDispatcher $eventDispatcher = null)
{
$eventDispatcher = $eventDispatcher ?: new EventDispatcher($composer, $io);
return new static(
$io,
$composer->getPackage(),
$composer->getDownloadManager(),
$composer->getRepositoryManager(),
$composer->getLocker(),
$composer->getInstallationManager(),
$eventDispatcher
);
}
public function setAdditionalInstalledRepository(RepositoryInterface $additionalInstalledRepository)
{
$this->additionalInstalledRepository = $additionalInstalledRepository;
return $this;
}
/**
* wether to run in drymode or not
*
* @param boolean $dryRun
* @return Installer
*/
public function setDryRun($dryRun = true)
{
$this->dryRun = (boolean) $dryRun;
return $this;
}
/**
* prefer source installation
*
* @param boolean $preferSource
* @return Installer
*/
public function setPreferSource($preferSource = true)
{
$this->preferSource = (boolean) $preferSource;
return $this;
}
/**
* update packages
*
* @param boolean $update
* @return Installer
*/
public function setUpdate($update = true)
{
$this->update = (boolean) $update;
return $this;
}
/**
* enables dev packages
*
* @param boolean $update
* @return Installer
*/
public function setDevMode($devMode = true)
{
$this->devMode = (boolean) $devMode;
return $this;
}
/**
* run in verbose mode
*
* @param boolean $verbose
* @return Installer
*/
public function setVerbose($verbose = true)
{
$this->verbose = (boolean) $verbose;
return $this;
}
}