403 lines
13 KiB
PHP
403 lines
13 KiB
PHP
<?php
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/**
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* Autoloader Generator.
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*
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* @package automattic/jetpack-autoloader
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*/
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namespace Automattic\Jetpack\Autoloader;
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use Composer\Composer;
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use Composer\Config;
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use Composer\Installer\InstallationManager;
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use Composer\IO\IOInterface;
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use Composer\Package\PackageInterface;
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use Composer\Repository\InstalledRepositoryInterface;
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use Composer\Util\Filesystem;
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use Composer\Util\PackageSorter;
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/**
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* Class AutoloadGenerator.
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*/
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class AutoloadGenerator {
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const VERSION = '5.0.0';
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/**
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* IO object.
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*
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* @var IOInterface IO object.
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*/
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private $io;
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/**
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* The filesystem utility.
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*
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* @var Filesystem
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*/
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private $filesystem;
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/**
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* Instantiate an AutoloadGenerator object.
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*
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* @param IOInterface $io IO object.
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*/
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public function __construct( IOInterface $io ) {
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$this->io = $io;
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$this->filesystem = new Filesystem();
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}
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/**
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* Dump the Jetpack autoloader files.
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*
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* @param Composer $composer The Composer object.
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* @param Config $config Config object.
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* @param InstalledRepositoryInterface $localRepo Installed Repository object.
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* @param PackageInterface $mainPackage Main Package object.
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* @param InstallationManager $installationManager Manager for installing packages.
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* @param string $targetDir Path to the current target directory.
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* @param bool $scanPsrPackages Whether or not PSR packages should be converted to a classmap.
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* @param string $suffix The autoloader suffix.
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*/
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public function dump(
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Composer $composer,
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Config $config,
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InstalledRepositoryInterface $localRepo,
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PackageInterface $mainPackage,
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InstallationManager $installationManager,
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$targetDir,
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$scanPsrPackages = false,
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$suffix = null
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) {
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$this->filesystem->ensureDirectoryExists( $config->get( 'vendor-dir' ) );
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$packageMap = $composer->getAutoloadGenerator()->buildPackageMap( $installationManager, $mainPackage, $localRepo->getCanonicalPackages() );
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$autoloads = $this->parseAutoloads( $packageMap, $mainPackage );
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// Convert the autoloads into a format that the manifest generator can consume more easily.
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$basePath = $this->filesystem->normalizePath( realpath( getcwd() ) );
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$vendorPath = $this->filesystem->normalizePath( realpath( $config->get( 'vendor-dir' ) ) );
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$processedAutoloads = $this->processAutoloads( $autoloads, $scanPsrPackages, $vendorPath, $basePath );
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unset( $packageMap, $autoloads );
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// Make sure none of the legacy files remain that can lead to problems with the autoloader.
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$this->removeLegacyFiles( $vendorPath );
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// Write all of the files now that we're done.
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$this->writeAutoloaderFiles( $vendorPath . '/jetpack-autoloader/', $suffix );
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$this->writeManifests( $vendorPath . '/' . $targetDir, $processedAutoloads );
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if ( ! $scanPsrPackages ) {
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$this->io->writeError( '<warning>You are generating an unoptimized autoloader. If this is a production build, consider using the -o option.</warning>' );
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}
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}
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/**
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* Compiles an ordered list of namespace => path mappings
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*
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* @param array $packageMap Array of array(package, installDir-relative-to-composer.json).
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* @param PackageInterface $mainPackage Main package instance.
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*
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* @return array The list of path mappings.
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*/
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public function parseAutoloads( array $packageMap, PackageInterface $mainPackage ) {
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$rootPackageMap = array_shift( $packageMap );
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$sortedPackageMap = $this->sortPackageMap( $packageMap );
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$sortedPackageMap[] = $rootPackageMap;
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array_unshift( $packageMap, $rootPackageMap );
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$psr0 = $this->parseAutoloadsType( $packageMap, 'psr-0', $mainPackage );
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$psr4 = $this->parseAutoloadsType( $packageMap, 'psr-4', $mainPackage );
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$classmap = $this->parseAutoloadsType( array_reverse( $sortedPackageMap ), 'classmap', $mainPackage );
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$files = $this->parseAutoloadsType( $sortedPackageMap, 'files', $mainPackage );
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krsort( $psr0 );
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krsort( $psr4 );
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return array(
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'psr-0' => $psr0,
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'psr-4' => $psr4,
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'classmap' => $classmap,
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'files' => $files,
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);
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}
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/**
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* Sorts packages by dependency weight
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*
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* Packages of equal weight retain the original order
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*
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* @param array $packageMap The package map.
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*
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* @return array
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*/
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protected function sortPackageMap( array $packageMap ) {
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$packages = array();
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$paths = array();
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foreach ( $packageMap as $item ) {
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list( $package, $path ) = $item;
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$name = $package->getName();
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$packages[ $name ] = $package;
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$paths[ $name ] = $path;
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}
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$sortedPackages = PackageSorter::sortPackages( $packages );
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$sortedPackageMap = array();
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foreach ( $sortedPackages as $package ) {
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$name = $package->getName();
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$sortedPackageMap[] = array( $packages[ $name ], $paths[ $name ] );
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}
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return $sortedPackageMap;
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}
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/**
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* Returns the file identifier.
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*
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* @param PackageInterface $package The package instance.
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* @param string $path The path.
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*/
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protected function getFileIdentifier( PackageInterface $package, $path ) {
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return md5( $package->getName() . ':' . $path );
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}
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/**
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* Returns the path code for the given path.
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*
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* @param Filesystem $filesystem The filesystem instance.
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* @param string $basePath The base path.
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* @param string $vendorPath The vendor path.
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* @param string $path The path.
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*
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* @return string The path code.
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*/
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protected function getPathCode( Filesystem $filesystem, $basePath, $vendorPath, $path ) {
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if ( ! $filesystem->isAbsolutePath( $path ) ) {
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$path = $basePath . '/' . $path;
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}
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$path = $filesystem->normalizePath( $path );
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$baseDir = '';
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if ( 0 === strpos( $path . '/', $vendorPath . '/' ) ) {
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$path = substr( $path, strlen( $vendorPath ) );
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$baseDir = '$vendorDir';
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if ( false !== $path ) {
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$baseDir .= ' . ';
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}
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} else {
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$path = $filesystem->normalizePath( $filesystem->findShortestPath( $basePath, $path, true ) );
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if ( ! $filesystem->isAbsolutePath( $path ) ) {
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$baseDir = '$baseDir . ';
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$path = '/' . $path;
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}
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}
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if ( strpos( $path, '.phar' ) !== false ) {
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$baseDir = "'phar://' . " . $baseDir;
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}
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// phpcs:ignore WordPress.PHP.DevelopmentFunctions.error_log_var_export
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return $baseDir . ( ( false !== $path ) ? var_export( $path, true ) : '' );
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}
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/**
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* This function differs from the composer parseAutoloadsType in that beside returning the path.
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* It also return the path and the version of a package.
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*
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* Supports PSR-4, PSR-0, and classmap parsing.
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*
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* @param array $packageMap Map of all the packages.
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* @param string $type Type of autoloader to use.
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* @param PackageInterface $mainPackage Instance of the Package Object.
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*
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* @return array
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*/
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protected function parseAutoloadsType( array $packageMap, $type, PackageInterface $mainPackage ) {
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$autoloads = array();
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foreach ( $packageMap as $item ) {
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list($package, $installPath) = $item;
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$autoload = $package->getAutoload();
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$version = $package->getVersion(); // Version of the class comes from the package - should we try to parse it?
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// Store our own actual package version, not "dev-trunk" or whatever.
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if ( $package->getName() === 'automattic/jetpack-autoloader' ) {
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$version = self::VERSION;
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}
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if ( $package === $mainPackage ) {
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$autoload = array_merge_recursive( $autoload, $package->getDevAutoload() );
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}
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if ( null !== $package->getTargetDir() && $package !== $mainPackage ) {
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$installPath = substr( $installPath, 0, -strlen( '/' . $package->getTargetDir() ) );
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}
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if ( in_array( $type, array( 'psr-4', 'psr-0' ), true ) && isset( $autoload[ $type ] ) && is_array( $autoload[ $type ] ) ) {
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foreach ( $autoload[ $type ] as $namespace => $paths ) {
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$paths = is_array( $paths ) ? $paths : array( $paths );
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foreach ( $paths as $path ) {
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$relativePath = empty( $installPath ) ? ( empty( $path ) ? '.' : $path ) : $installPath . '/' . $path;
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$autoloads[ $namespace ][] = array(
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'path' => $relativePath,
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'version' => $version,
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);
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}
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}
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}
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if ( 'classmap' === $type && isset( $autoload['classmap'] ) && is_array( $autoload['classmap'] ) ) {
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foreach ( $autoload['classmap'] as $paths ) {
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$paths = is_array( $paths ) ? $paths : array( $paths );
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foreach ( $paths as $path ) {
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$relativePath = empty( $installPath ) ? ( empty( $path ) ? '.' : $path ) : $installPath . '/' . $path;
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$autoloads[] = array(
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'path' => $relativePath,
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'version' => $version,
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);
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}
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}
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}
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if ( 'files' === $type && isset( $autoload['files'] ) && is_array( $autoload['files'] ) ) {
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foreach ( $autoload['files'] as $paths ) {
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$paths = is_array( $paths ) ? $paths : array( $paths );
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foreach ( $paths as $path ) {
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$relativePath = empty( $installPath ) ? ( empty( $path ) ? '.' : $path ) : $installPath . '/' . $path;
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$autoloads[ $this->getFileIdentifier( $package, $path ) ] = array(
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'path' => $relativePath,
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'version' => $version,
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);
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}
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}
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}
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}
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return $autoloads;
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}
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/**
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* Given Composer's autoloads this will convert them to a version that we can use to generate the manifests.
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*
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* When the $scanPsrPackages argument is true, PSR-4 namespaces are converted to classmaps. When $scanPsrPackages
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* is false, PSR-4 namespaces are not converted to classmaps.
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*
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* PSR-0 namespaces are always converted to classmaps.
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*
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* @param array $autoloads The autoloads we want to process.
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* @param bool $scanPsrPackages Whether or not PSR-4 packages should be converted to a classmap.
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* @param string $vendorPath The path to the vendor directory.
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* @param string $basePath The path to the current directory.
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*
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* @return array $processedAutoloads
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*/
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private function processAutoloads( $autoloads, $scanPsrPackages, $vendorPath, $basePath ) {
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$processor = new AutoloadProcessor(
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function ( $path, $excludedClasses, $namespace ) use ( $basePath ) {
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$dir = $this->filesystem->normalizePath(
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$this->filesystem->isAbsolutePath( $path ) ? $path : $basePath . '/' . $path
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);
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// Composer 2.4 changed the name of the class.
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if ( class_exists( \Composer\ClassMapGenerator\ClassMapGenerator::class ) ) {
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if ( ! is_dir( $dir ) && ! is_file( $dir ) ) {
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return array();
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}
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$generator = new \Composer\ClassMapGenerator\ClassMapGenerator();
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$generator->scanPaths( $dir, $excludedClasses, 'classmap', empty( $namespace ) ? null : $namespace );
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return $generator->getClassMap()->getMap();
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}
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return \Composer\Autoload\ClassMapGenerator::createMap(
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$dir,
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$excludedClasses,
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null, // Don't pass the IOInterface since the normal autoload generation will have reported already.
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empty( $namespace ) ? null : $namespace
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);
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},
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function ( $path ) use ( $basePath, $vendorPath ) {
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return $this->getPathCode( $this->filesystem, $basePath, $vendorPath, $path );
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}
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);
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return array(
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'psr-4' => $processor->processPsr4Packages( $autoloads, $scanPsrPackages ),
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'classmap' => $processor->processClassmap( $autoloads, $scanPsrPackages ),
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'files' => $processor->processFiles( $autoloads ),
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);
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}
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/**
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* Removes all of the legacy autoloader files so they don't cause any problems.
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*
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* @param string $outDir The directory legacy files are written to.
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*/
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private function removeLegacyFiles( $outDir ) {
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$files = array(
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'autoload_functions.php',
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'class-autoloader-handler.php',
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'class-classes-handler.php',
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'class-files-handler.php',
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'class-plugins-handler.php',
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'class-version-selector.php',
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);
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foreach ( $files as $file ) {
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$this->filesystem->remove( $outDir . '/' . $file );
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}
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}
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/**
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* Writes all of the autoloader files to disk.
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*
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* @param string $outDir The directory to write to.
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* @param string $suffix The unique autoloader suffix.
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*/
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private function writeAutoloaderFiles( $outDir, $suffix ) {
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$this->io->writeError( "<info>Generating jetpack autoloader ($outDir)</info>" );
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// We will remove all autoloader files to generate this again.
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$this->filesystem->emptyDirectory( $outDir );
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// Write the autoloader files.
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AutoloadFileWriter::copyAutoloaderFiles( $this->io, $outDir, $suffix );
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}
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/**
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* Writes all of the manifest files to disk.
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*
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* @param string $outDir The directory to write to.
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* @param array $processedAutoloads The processed autoloads.
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*/
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private function writeManifests( $outDir, $processedAutoloads ) {
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$this->io->writeError( "<info>Generating jetpack autoloader manifests ($outDir)</info>" );
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$manifestFiles = array(
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'classmap' => 'jetpack_autoload_classmap.php',
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'psr-4' => 'jetpack_autoload_psr4.php',
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'files' => 'jetpack_autoload_filemap.php',
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);
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foreach ( $manifestFiles as $key => $file ) {
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// Make sure the file doesn't exist so it isn't there if we don't write it.
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$this->filesystem->remove( $outDir . '/' . $file );
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if ( empty( $processedAutoloads[ $key ] ) ) {
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continue;
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}
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$content = ManifestGenerator::buildManifest( $key, $file, $processedAutoloads[ $key ] );
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if ( empty( $content ) ) {
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continue;
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}
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if ( file_put_contents( $outDir . '/' . $file, $content ) ) {
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$this->io->writeError( " <info>Generated: $file</info>" );
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} else {
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$this->io->writeError( " <error>Error: $file</error>" );
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}
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}
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}
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}
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