Chris@0: <?php
Chris@0: /**
Chris@0:  * This file is part of the Composer Merge plugin.
Chris@0:  *
Chris@0:  * Copyright (C) 2015 Bryan Davis, Wikimedia Foundation, and contributors
Chris@0:  *
Chris@0:  * This software may be modified and distributed under the terms of the MIT
Chris@0:  * license. See the LICENSE file for details.
Chris@0:  */
Chris@0: 
Chris@0: namespace Wikimedia\Composer\Merge;
Chris@0: 
Chris@0: use Wikimedia\Composer\Logger;
Chris@0: 
Chris@0: use Composer\Composer;
Chris@0: use Composer\Json\JsonFile;
Chris@0: use Composer\Package\BasePackage;
Chris@0: use Composer\Package\CompletePackage;
Chris@0: use Composer\Package\Link;
Chris@0: use Composer\Package\Loader\ArrayLoader;
Chris@0: use Composer\Package\RootAliasPackage;
Chris@0: use Composer\Package\RootPackage;
Chris@0: use Composer\Package\RootPackageInterface;
Chris@0: use Composer\Package\Version\VersionParser;
Chris@0: use UnexpectedValueException;
Chris@0: 
Chris@0: /**
Chris@0:  * Processing for a composer.json file that will be merged into
Chris@0:  * a RootPackageInterface
Chris@0:  *
Chris@0:  * @author Bryan Davis <bd808@bd808.com>
Chris@0:  */
Chris@0: class ExtraPackage
Chris@0: {
Chris@0: 
Chris@0:     /**
Chris@0:      * @var Composer $composer
Chris@0:      */
Chris@0:     protected $composer;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var Logger $logger
Chris@0:      */
Chris@0:     protected $logger;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var string $path
Chris@0:      */
Chris@0:     protected $path;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var array $json
Chris@0:      */
Chris@0:     protected $json;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var CompletePackage $package
Chris@0:      */
Chris@0:     protected $package;
Chris@0: 
Chris@0:     /**
Chris@0:      * @var VersionParser $versionParser
Chris@0:      */
Chris@0:     protected $versionParser;
Chris@0: 
Chris@0:     /**
Chris@0:      * @param string $path Path to composer.json file
Chris@0:      * @param Composer $composer
Chris@0:      * @param Logger $logger
Chris@0:      */
Chris@0:     public function __construct($path, Composer $composer, Logger $logger)
Chris@0:     {
Chris@0:         $this->path = $path;
Chris@0:         $this->composer = $composer;
Chris@0:         $this->logger = $logger;
Chris@0:         $this->json = $this->readPackageJson($path);
Chris@0:         $this->package = $this->loadPackage($this->json);
Chris@0:         $this->versionParser = new VersionParser();
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get list of additional packages to include if precessing recursively.
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public function getIncludes()
Chris@0:     {
Chris@0:         return isset($this->json['extra']['merge-plugin']['include']) ?
Chris@0:             $this->json['extra']['merge-plugin']['include'] : array();
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get list of additional packages to require if precessing recursively.
Chris@0:      *
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public function getRequires()
Chris@0:     {
Chris@0:         return isset($this->json['extra']['merge-plugin']['require']) ?
Chris@0:             $this->json['extra']['merge-plugin']['require'] : array();
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Read the contents of a composer.json style file into an array.
Chris@0:      *
Chris@0:      * The package contents are fixed up to be usable to create a Package
Chris@0:      * object by providing dummy "name" and "version" values if they have not
Chris@0:      * been provided in the file. This is consistent with the default root
Chris@0:      * package loading behavior of Composer.
Chris@0:      *
Chris@0:      * @param string $path
Chris@0:      * @return array
Chris@0:      */
Chris@0:     protected function readPackageJson($path)
Chris@0:     {
Chris@0:         $file = new JsonFile($path);
Chris@0:         $json = $file->read();
Chris@0:         if (!isset($json['name'])) {
Chris@0:             $json['name'] = 'merge-plugin/' .
Chris@0:                 strtr($path, DIRECTORY_SEPARATOR, '-');
Chris@0:         }
Chris@0:         if (!isset($json['version'])) {
Chris@0:             $json['version'] = '1.0.0';
Chris@0:         }
Chris@0:         return $json;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * @param array $json
Chris@0:      * @return CompletePackage
Chris@0:      */
Chris@0:     protected function loadPackage(array $json)
Chris@0:     {
Chris@0:         $loader = new ArrayLoader();
Chris@0:         $package = $loader->load($json);
Chris@0:         // @codeCoverageIgnoreStart
Chris@0:         if (!$package instanceof CompletePackage) {
Chris@0:             throw new UnexpectedValueException(
Chris@0:                 'Expected instance of CompletePackage, got ' .
Chris@0:                 get_class($package)
Chris@0:             );
Chris@0:         }
Chris@0:         // @codeCoverageIgnoreEnd
Chris@0:         return $package;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge this package into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param PluginState $state
Chris@0:      */
Chris@0:     public function mergeInto(RootPackageInterface $root, PluginState $state)
Chris@0:     {
Chris@0:         $this->prependRepositories($root);
Chris@0: 
Chris@0:         $this->mergeRequires('require', $root, $state);
Chris@0: 
Chris@0:         $this->mergePackageLinks('conflict', $root);
Chris@0:         $this->mergePackageLinks('replace', $root);
Chris@0:         $this->mergePackageLinks('provide', $root);
Chris@0: 
Chris@0:         $this->mergeSuggests($root);
Chris@0: 
Chris@0:         $this->mergeAutoload('autoload', $root);
Chris@0: 
Chris@0:         $this->mergeExtra($root, $state);
Chris@0: 
Chris@0:         $this->mergeScripts($root, $state);
Chris@0: 
Chris@0:         if ($state->isDevMode()) {
Chris@0:             $this->mergeDevInto($root, $state);
Chris@0:         } else {
Chris@0:             $this->mergeReferences($root);
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge just the dev portion into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param PluginState $state
Chris@0:      */
Chris@0:     public function mergeDevInto(RootPackageInterface $root, PluginState $state)
Chris@0:     {
Chris@0:         $this->mergeRequires('require-dev', $root, $state);
Chris@0:         $this->mergeAutoload('devAutoload', $root);
Chris@0:         $this->mergeReferences($root);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Add a collection of repositories described by the given configuration
Chris@0:      * to the given package and the global repository manager.
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      */
Chris@0:     protected function prependRepositories(RootPackageInterface $root)
Chris@0:     {
Chris@0:         if (!isset($this->json['repositories'])) {
Chris@0:             return;
Chris@0:         }
Chris@0:         $repoManager = $this->composer->getRepositoryManager();
Chris@0:         $newRepos = array();
Chris@0: 
Chris@0:         foreach ($this->json['repositories'] as $repoJson) {
Chris@0:             if (!isset($repoJson['type'])) {
Chris@0:                 continue;
Chris@0:             }
Chris@0:             $this->logger->info("Prepending {$repoJson['type']} repository");
Chris@0:             $repo = $repoManager->createRepository(
Chris@0:                 $repoJson['type'],
Chris@0:                 $repoJson
Chris@0:             );
Chris@0:             $repoManager->prependRepository($repo);
Chris@0:             $newRepos[] = $repo;
Chris@0:         }
Chris@0: 
Chris@0:         $unwrapped = self::unwrapIfNeeded($root, 'setRepositories');
Chris@0:         $unwrapped->setRepositories(array_merge(
Chris@0:             $newRepos,
Chris@0:             $root->getRepositories()
Chris@0:         ));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge require or require-dev into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param string $type 'require' or 'require-dev'
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param PluginState $state
Chris@0:      */
Chris@0:     protected function mergeRequires(
Chris@0:         $type,
Chris@0:         RootPackageInterface $root,
Chris@0:         PluginState $state
Chris@0:     ) {
Chris@0:         $linkType = BasePackage::$supportedLinkTypes[$type];
Chris@0:         $getter = 'get' . ucfirst($linkType['method']);
Chris@0:         $setter = 'set' . ucfirst($linkType['method']);
Chris@0: 
Chris@0:         $requires = $this->package->{$getter}();
Chris@0:         if (empty($requires)) {
Chris@0:             return;
Chris@0:         }
Chris@0: 
Chris@0:         $this->mergeStabilityFlags($root, $requires);
Chris@0: 
Chris@0:         $requires = $this->replaceSelfVersionDependencies(
Chris@0:             $type,
Chris@0:             $requires,
Chris@0:             $root
Chris@0:         );
Chris@0: 
Chris@0:         $root->{$setter}($this->mergeOrDefer(
Chris@0:             $type,
Chris@0:             $root->{$getter}(),
Chris@0:             $requires,
Chris@0:             $state
Chris@0:         ));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge two collections of package links and collect duplicates for
Chris@0:      * subsequent processing.
Chris@0:      *
Chris@0:      * @param string $type 'require' or 'require-dev'
Chris@0:      * @param array $origin Primary collection
Chris@0:      * @param array $merge Additional collection
Chris@0:      * @param PluginState $state
Chris@0:      * @return array Merged collection
Chris@0:      */
Chris@0:     protected function mergeOrDefer(
Chris@0:         $type,
Chris@0:         array $origin,
Chris@0:         array $merge,
Chris@0:         $state
Chris@0:     ) {
Chris@0:         if ($state->ignoreDuplicateLinks() && $state->replaceDuplicateLinks()) {
Chris@0:             $this->logger->warning("Both replace and ignore-duplicates are true. These are mutually exclusive.");
Chris@0:             $this->logger->warning("Duplicate packages will be ignored.");
Chris@0:         }
Chris@0: 
Chris@0:         $dups = array();
Chris@0:         foreach ($merge as $name => $link) {
Chris@0:             if (isset($origin[$name]) && $state->ignoreDuplicateLinks()) {
Chris@0:                 $this->logger->info("Ignoring duplicate <comment>{$name}</comment>");
Chris@0:                 continue;
Chris@0:             } elseif (!isset($origin[$name]) || $state->replaceDuplicateLinks()) {
Chris@0:                 $this->logger->info("Merging <comment>{$name}</comment>");
Chris@0:                 $origin[$name] = $link;
Chris@0:             } else {
Chris@0:                 // Defer to solver.
Chris@0:                 $this->logger->info(
Chris@0:                     "Deferring duplicate <comment>{$name}</comment>"
Chris@0:                 );
Chris@0:                 $dups[] = $link;
Chris@0:             }
Chris@0:         }
Chris@0:         $state->addDuplicateLinks($type, $dups);
Chris@0:         return $origin;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge autoload or autoload-dev into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param string $type 'autoload' or 'devAutoload'
Chris@0:      * @param RootPackageInterface $root
Chris@0:      */
Chris@0:     protected function mergeAutoload($type, RootPackageInterface $root)
Chris@0:     {
Chris@0:         $getter = 'get' . ucfirst($type);
Chris@0:         $setter = 'set' . ucfirst($type);
Chris@0: 
Chris@0:         $autoload = $this->package->{$getter}();
Chris@0:         if (empty($autoload)) {
Chris@0:             return;
Chris@0:         }
Chris@0: 
Chris@0:         $unwrapped = self::unwrapIfNeeded($root, $setter);
Chris@0:         $unwrapped->{$setter}(array_merge_recursive(
Chris@0:             $root->{$getter}(),
Chris@0:             $this->fixRelativePaths($autoload)
Chris@0:         ));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Fix a collection of paths that are relative to this package to be
Chris@0:      * relative to the base package.
Chris@0:      *
Chris@0:      * @param array $paths
Chris@0:      * @return array
Chris@0:      */
Chris@0:     protected function fixRelativePaths(array $paths)
Chris@0:     {
Chris@0:         $base = dirname($this->path);
Chris@0:         $base = ($base === '.') ? '' : "{$base}/";
Chris@0: 
Chris@0:         array_walk_recursive(
Chris@0:             $paths,
Chris@0:             function (&$path) use ($base) {
Chris@0:                 $path = "{$base}{$path}";
Chris@0:             }
Chris@0:         );
Chris@0:         return $paths;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Extract and merge stability flags from the given collection of
Chris@0:      * requires and merge them into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param array $requires
Chris@0:      */
Chris@0:     protected function mergeStabilityFlags(
Chris@0:         RootPackageInterface $root,
Chris@0:         array $requires
Chris@0:     ) {
Chris@0:         $flags = $root->getStabilityFlags();
Chris@0:         $sf = new StabilityFlags($flags, $root->getMinimumStability());
Chris@0: 
Chris@0:         $unwrapped = self::unwrapIfNeeded($root, 'setStabilityFlags');
Chris@0:         $unwrapped->setStabilityFlags(array_merge(
Chris@0:             $flags,
Chris@0:             $sf->extractAll($requires)
Chris@0:         ));
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge package links of the given type  into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param string $type 'conflict', 'replace' or 'provide'
Chris@0:      * @param RootPackageInterface $root
Chris@0:      */
Chris@0:     protected function mergePackageLinks($type, RootPackageInterface $root)
Chris@0:     {
Chris@0:         $linkType = BasePackage::$supportedLinkTypes[$type];
Chris@0:         $getter = 'get' . ucfirst($linkType['method']);
Chris@0:         $setter = 'set' . ucfirst($linkType['method']);
Chris@0: 
Chris@0:         $links = $this->package->{$getter}();
Chris@0:         if (!empty($links)) {
Chris@0:             $unwrapped = self::unwrapIfNeeded($root, $setter);
Chris@0:             // @codeCoverageIgnoreStart
Chris@0:             if ($root !== $unwrapped) {
Chris@0:                 $this->logger->warning(
Chris@0:                     'This Composer version does not support ' .
Chris@0:                     "'{$type}' merging for aliased packages."
Chris@0:                 );
Chris@0:             }
Chris@0:             // @codeCoverageIgnoreEnd
Chris@0:             $unwrapped->{$setter}(array_merge(
Chris@0:                 $root->{$getter}(),
Chris@0:                 $this->replaceSelfVersionDependencies($type, $links, $root)
Chris@0:             ));
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge suggested packages into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      */
Chris@0:     protected function mergeSuggests(RootPackageInterface $root)
Chris@0:     {
Chris@0:         $suggests = $this->package->getSuggests();
Chris@0:         if (!empty($suggests)) {
Chris@0:             $unwrapped = self::unwrapIfNeeded($root, 'setSuggests');
Chris@0:             $unwrapped->setSuggests(array_merge(
Chris@0:                 $root->getSuggests(),
Chris@0:                 $suggests
Chris@0:             ));
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge extra config into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param PluginState $state
Chris@0:      */
Chris@0:     public function mergeExtra(RootPackageInterface $root, PluginState $state)
Chris@0:     {
Chris@0:         $extra = $this->package->getExtra();
Chris@0:         unset($extra['merge-plugin']);
Chris@0:         if (!$state->shouldMergeExtra() || empty($extra)) {
Chris@0:             return;
Chris@0:         }
Chris@0: 
Chris@0:         $rootExtra = $root->getExtra();
Chris@0:         $unwrapped = self::unwrapIfNeeded($root, 'setExtra');
Chris@0: 
Chris@0:         if ($state->replaceDuplicateLinks()) {
Chris@0:             $unwrapped->setExtra(
Chris@0:                 self::mergeExtraArray($state->shouldMergeExtraDeep(), $rootExtra, $extra)
Chris@0:             );
Chris@0:         } else {
Chris@0:             if (!$state->shouldMergeExtraDeep()) {
Chris@0:                 foreach (array_intersect(
Chris@0:                     array_keys($extra),
Chris@0:                     array_keys($rootExtra)
Chris@0:                 ) as $key) {
Chris@0:                     $this->logger->info(
Chris@0:                         "Ignoring duplicate <comment>{$key}</comment> in ".
Chris@0:                         "<comment>{$this->path}</comment> extra config."
Chris@0:                     );
Chris@0:                 }
Chris@0:             }
Chris@0:             $unwrapped->setExtra(
Chris@0:                 self::mergeExtraArray($state->shouldMergeExtraDeep(), $extra, $rootExtra)
Chris@0:             );
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merge scripts config into a RootPackageInterface
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param PluginState $state
Chris@0:      */
Chris@0:     public function mergeScripts(RootPackageInterface $root, PluginState $state)
Chris@0:     {
Chris@0:         $scripts = $this->package->getScripts();
Chris@0:         if (!$state->shouldMergeScripts() || empty($scripts)) {
Chris@0:             return;
Chris@0:         }
Chris@0: 
Chris@0:         $rootScripts = $root->getScripts();
Chris@0:         $unwrapped = self::unwrapIfNeeded($root, 'setScripts');
Chris@0: 
Chris@0:         if ($state->replaceDuplicateLinks()) {
Chris@0:             $unwrapped->setScripts(
Chris@0:                 array_merge($rootScripts, $scripts)
Chris@0:             );
Chris@0:         } else {
Chris@0:             $unwrapped->setScripts(
Chris@0:                 array_merge($scripts, $rootScripts)
Chris@0:             );
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Merges two arrays either via arrayMergeDeep or via array_merge.
Chris@0:      *
Chris@0:      * @param bool $mergeDeep
Chris@0:      * @param array $array1
Chris@0:      * @param array $array2
Chris@0:      * @return array
Chris@0:      */
Chris@0:     public static function mergeExtraArray($mergeDeep, $array1, $array2)
Chris@0:     {
Chris@0:         if ($mergeDeep) {
Chris@0:             return NestedArray::mergeDeep($array1, $array2);
Chris@0:         }
Chris@0: 
Chris@0:         return array_merge($array1, $array2);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Update Links with a 'self.version' constraint with the root package's
Chris@0:      * version.
Chris@0:      *
Chris@0:      * @param string $type Link type
Chris@0:      * @param array $links
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @return array
Chris@0:      */
Chris@0:     protected function replaceSelfVersionDependencies(
Chris@0:         $type,
Chris@0:         array $links,
Chris@0:         RootPackageInterface $root
Chris@0:     ) {
Chris@0:         $linkType = BasePackage::$supportedLinkTypes[$type];
Chris@0:         $version = $root->getVersion();
Chris@0:         $prettyVersion = $root->getPrettyVersion();
Chris@0:         $vp = $this->versionParser;
Chris@0: 
Chris@0:         $method = 'get' . ucfirst($linkType['method']);
Chris@0:         $packages = $root->$method();
Chris@0: 
Chris@0:         return array_map(
Chris@0:             function ($link) use ($linkType, $version, $prettyVersion, $vp, $packages) {
Chris@0:                 if ('self.version' === $link->getPrettyConstraint()) {
Chris@0:                     if (isset($packages[$link->getSource()])) {
Chris@0:                         /** @var Link $package */
Chris@0:                         $package = $packages[$link->getSource()];
Chris@0:                         return new Link(
Chris@0:                             $link->getSource(),
Chris@0:                             $link->getTarget(),
Chris@0:                             $vp->parseConstraints($package->getConstraint()->getPrettyString()),
Chris@0:                             $linkType['description'],
Chris@0:                             $package->getPrettyConstraint()
Chris@0:                         );
Chris@0:                     }
Chris@0: 
Chris@0:                     return new Link(
Chris@0:                         $link->getSource(),
Chris@0:                         $link->getTarget(),
Chris@0:                         $vp->parseConstraints($version),
Chris@0:                         $linkType['description'],
Chris@0:                         $prettyVersion
Chris@0:                     );
Chris@0:                 }
Chris@0:                 return $link;
Chris@0:             },
Chris@0:             $links
Chris@0:         );
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Get a full featured Package from a RootPackageInterface.
Chris@0:      *
Chris@0:      * In Composer versions before 599ad77 the RootPackageInterface only
Chris@0:      * defines a sub-set of operations needed by composer-merge-plugin and
Chris@0:      * RootAliasPackage only implemented those methods defined by the
Chris@0:      * interface. Most of the unimplemented methods in RootAliasPackage can be
Chris@0:      * worked around because the getter methods that are implemented proxy to
Chris@0:      * the aliased package which we can modify by unwrapping. The exception
Chris@0:      * being modifying the 'conflicts', 'provides' and 'replaces' collections.
Chris@0:      * We have no way to actually modify those collections unfortunately in
Chris@0:      * older versions of Composer.
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      * @param string $method Method needed
Chris@0:      * @return RootPackageInterface|RootPackage
Chris@0:      */
Chris@0:     public static function unwrapIfNeeded(
Chris@0:         RootPackageInterface $root,
Chris@0:         $method = 'setExtra'
Chris@0:     ) {
Chris@0:         // @codeCoverageIgnoreStart
Chris@0:         if ($root instanceof RootAliasPackage &&
Chris@0:             !method_exists($root, $method)
Chris@0:         ) {
Chris@0:             // Unwrap and return the aliased RootPackage.
Chris@0:             $root = $root->getAliasOf();
Chris@0:         }
Chris@0:         // @codeCoverageIgnoreEnd
Chris@0:         return $root;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Update the root packages reference information.
Chris@0:      *
Chris@0:      * @param RootPackageInterface $root
Chris@0:      */
Chris@0:     protected function mergeReferences(RootPackageInterface $root)
Chris@0:     {
Chris@0:         // Merge source reference information for merged packages.
Chris@0:         // @see RootPackageLoader::load
Chris@0:         $references = array();
Chris@0:         $unwrapped = $this->unwrapIfNeeded($root, 'setReferences');
Chris@0:         foreach (array('require', 'require-dev') as $linkType) {
Chris@0:             $linkInfo = BasePackage::$supportedLinkTypes[$linkType];
Chris@0:             $method = 'get'.ucfirst($linkInfo['method']);
Chris@0:             $links = array();
Chris@0:             foreach ($unwrapped->$method() as $link) {
Chris@0:                 $links[$link->getTarget()] = $link->getConstraint()->getPrettyString();
Chris@0:             }
Chris@0:             $references = $this->extractReferences($links, $references);
Chris@0:         }
Chris@0:         $unwrapped->setReferences($references);
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Extract vcs revision from version constraint (dev-master#abc123.
Chris@0:      *
Chris@0:      * @param array $requires
Chris@0:      * @param array $references
Chris@0:      * @return array
Chris@0:      * @see RootPackageLoader::extractReferences()
Chris@0:      */
Chris@0:     protected function extractReferences(array $requires, array $references)
Chris@0:     {
Chris@0:         foreach ($requires as $reqName => $reqVersion) {
Chris@0:             $reqVersion = preg_replace('{^([^,\s@]+) as .+$}', '$1', $reqVersion);
Chris@0:             $stabilityName = VersionParser::parseStability($reqVersion);
Chris@0:             if (
Chris@0:                 preg_match('{^[^,\s@]+?#([a-f0-9]+)$}', $reqVersion, $match) &&
Chris@0:                 $stabilityName === 'dev'
Chris@0:             ) {
Chris@0:                 $name = strtolower($reqName);
Chris@0:                 $references[$name] = $match[1];
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $references;
Chris@0:     }
Chris@0: }
Chris@0: // vim:sw=4:ts=4:sts=4:et: