663 lines
18 KiB
PHP
Executable File
663 lines
18 KiB
PHP
Executable File
#!/usr/bin/env php
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<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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// -------------------------------------------------------------------------- //
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// This script can be used to automatically glue all the .php files of Predis
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// into a single monolithic script file that can be used without an autoloader,
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// just like the other previous versions of the library.
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//
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// Much of its complexity is due to the fact that we cannot simply join PHP
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// files, but namespaces and classes definitions must follow a precise order
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// when dealing with subclassing and inheritance.
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//
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// The current implementation is pretty naïve, but it should do for now.
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// -------------------------------------------------------------------------- //
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class CommandLine
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{
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public static function getOptions()
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{
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$parameters = array(
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's:' => 'source:',
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'o:' => 'output:',
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'e:' => 'exclude:',
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'E:' => 'exclude-classes:',
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);
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$getops = getopt(implode(array_keys($parameters)), $parameters);
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$options = array(
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'source' => __DIR__ . "/../src",
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'output' => PredisFile::NS_ROOT . '.php',
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'exclude' => array(),
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);
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foreach ($getops as $option => $value) {
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switch ($option) {
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case 's':
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case 'source':
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$options['source'] = $value;
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break;
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case 'o':
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case 'output':
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$options['output'] = $value;
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break;
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case 'E':
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case 'exclude-classes':
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$options['exclude'] = @file($value, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: $value;
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break;
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case 'e':
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case 'exclude':
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$options['exclude'] = is_array($value) ? $value : array($value);
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break;
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}
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}
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return $options;
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}
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}
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class PredisFile
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{
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const NS_ROOT = 'Predis';
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private $namespaces;
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public function __construct()
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{
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$this->namespaces = array();
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}
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public static function from($libraryPath, array $exclude = array())
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{
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$predisFile = new PredisFile();
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$libIterator = new RecursiveDirectoryIterator($libraryPath);
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foreach (new RecursiveIteratorIterator($libIterator) as $classFile)
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{
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if (!$classFile->isFile()) {
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continue;
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}
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$namespace = self::NS_ROOT.strtr(str_replace($libraryPath, '', $classFile->getPath()), '/', '\\');
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if (in_array(sprintf('%s\\%s', $namespace, $classFile->getBasename('.php')), $exclude)) {
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continue;
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}
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$phpNamespace = $predisFile->getNamespace($namespace);
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if ($phpNamespace === false) {
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$phpNamespace = new PhpNamespace($namespace);
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$predisFile->addNamespace($phpNamespace);
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}
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$phpClass = new PhpClass($phpNamespace, $classFile);
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}
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return $predisFile;
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}
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public function addNamespace(PhpNamespace $namespace)
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{
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if (isset($this->namespaces[(string)$namespace])) {
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throw new InvalidArgumentException("Duplicated namespace");
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}
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$this->namespaces[(string)$namespace] = $namespace;
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}
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public function getNamespaces()
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{
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return $this->namespaces;
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}
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public function getNamespace($namespace)
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{
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if (!isset($this->namespaces[$namespace])) {
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return false;
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}
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return $this->namespaces[$namespace];
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}
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public function getClassByFQN($classFqn)
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{
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if (($nsLastPos = strrpos($classFqn, '\\')) !== false) {
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$namespace = $this->getNamespace(substr($classFqn, 0, $nsLastPos));
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if ($namespace === false) {
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return null;
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}
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$className = substr($classFqn, $nsLastPos + 1);
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return $namespace->getClass($className);
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}
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return null;
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}
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private function calculateDependencyScores(&$classes, $fqn)
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{
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if (!isset($classes[$fqn])) {
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$classes[$fqn] = 0;
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}
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$classes[$fqn] += 1;
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if (($phpClass = $this->getClassByFQN($fqn)) === null) {
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throw new RuntimeException(
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"Cannot found the class $fqn which is required by other subclasses. Are you missing a file?"
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);
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}
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foreach ($phpClass->getDependencies() as $fqn) {
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$this->calculateDependencyScores($classes, $fqn);
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}
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}
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private function getDependencyScores()
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{
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$classes = array();
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foreach ($this->getNamespaces() as $phpNamespace) {
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foreach ($phpNamespace->getClasses() as $phpClass) {
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$this->calculateDependencyScores($classes, $phpClass->getFQN());
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}
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}
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return $classes;
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}
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private function getOrderedNamespaces($dependencyScores)
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{
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$namespaces = array_fill_keys(array_unique(
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array_map(
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function ($fqn) { return PhpNamespace::extractName($fqn); },
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array_keys($dependencyScores)
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)
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), 0);
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foreach ($dependencyScores as $classFqn => $score) {
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$namespaces[PhpNamespace::extractName($classFqn)] += $score;
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}
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arsort($namespaces);
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return array_keys($namespaces);
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}
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private function getOrderedClasses(PhpNamespace $phpNamespace, $classes)
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{
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$nsClassesFQNs = array_map(function ($cl) { return $cl->getFQN(); }, $phpNamespace->getClasses());
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$nsOrderedClasses = array();
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foreach ($nsClassesFQNs as $nsClassFQN) {
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$nsOrderedClasses[$nsClassFQN] = $classes[$nsClassFQN];
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}
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arsort($nsOrderedClasses);
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return array_keys($nsOrderedClasses);
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}
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public function getPhpCode()
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{
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$buffer = array("<?php\n\n", PhpClass::LICENSE_HEADER, "\n\n");
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$classes = $this->getDependencyScores();
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$namespaces = $this->getOrderedNamespaces($classes);
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foreach ($namespaces as $namespace) {
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$phpNamespace = $this->getNamespace($namespace);
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// generate namespace directive
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$buffer[] = $phpNamespace->getPhpCode();
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$buffer[] = "\n";
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// generate use directives
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$useDirectives = $phpNamespace->getUseDirectives();
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if (count($useDirectives) > 0) {
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$buffer[] = $useDirectives->getPhpCode();
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$buffer[] = "\n";
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}
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// generate classes bodies
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$nsClasses = $this->getOrderedClasses($phpNamespace, $classes);
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foreach ($nsClasses as $classFQN) {
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$buffer[] = $this->getClassByFQN($classFQN)->getPhpCode();
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$buffer[] = "\n\n";
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}
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$buffer[] = "/* " . str_repeat("-", 75) . " */";
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$buffer[] = "\n\n";
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}
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return implode($buffer);
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}
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public function saveTo($outputFile)
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{
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// TODO: add more sanity checks
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if ($outputFile === null || $outputFile === '') {
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throw new InvalidArgumentException('You must specify a valid output file');
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}
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file_put_contents($outputFile, $this->getPhpCode());
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}
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}
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class PhpNamespace implements IteratorAggregate
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{
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private $namespace;
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private $classes;
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public function __construct($namespace)
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{
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$this->namespace = $namespace;
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$this->classes = array();
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$this->useDirectives = new PhpUseDirectives($this);
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}
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public static function extractName($fqn)
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{
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$nsSepLast = strrpos($fqn, '\\');
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if ($nsSepLast === false) {
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return $fqn;
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}
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$ns = substr($fqn, 0, $nsSepLast);
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return $ns !== '' ? $ns : null;
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}
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public function addClass(PhpClass $class)
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{
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$this->classes[$class->getName()] = $class;
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}
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public function getClass($className)
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{
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if (isset($this->classes[$className])) {
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return $this->classes[$className];
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}
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}
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public function getClasses()
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{
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return array_values($this->classes);
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}
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public function getIterator()
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{
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return new \ArrayIterator($this->getClasses());
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}
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public function getUseDirectives()
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{
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return $this->useDirectives;
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}
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public function getPhpCode()
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{
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return "namespace $this->namespace;\n";
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}
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public function __toString()
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{
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return $this->namespace;
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}
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}
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class PhpUseDirectives implements Countable, IteratorAggregate
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{
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private $use;
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private $aliases;
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private $reverseAliases;
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private $namespace;
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public function __construct(PhpNamespace $namespace)
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{
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$this->namespace = $namespace;
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$this->use = array();
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$this->aliases = array();
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$this->reverseAliases = array();
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}
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public function add($use, $as = null)
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{
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if (in_array($use, $this->use)) {
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return;
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}
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$rename = null;
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$this->use[] = $use;
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$aliasedClassName = $as ?: PhpClass::extractName($use);
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if (isset($this->aliases[$aliasedClassName])) {
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$parentNs = $this->getParentNamespace();
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if ($parentNs && false !== $pos = strrpos($parentNs, '\\')) {
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$parentNs = substr($parentNs, $pos);
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}
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$newAlias = "{$parentNs}_{$aliasedClassName}";
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$rename = (object) array(
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'namespace' => $this->namespace,
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'from' => $aliasedClassName,
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'to' => $newAlias,
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);
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$this->aliases[$newAlias] = $use;
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$as = $newAlias;
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} else {
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$this->aliases[$aliasedClassName] = $use;
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}
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if ($as !== null) {
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$this->reverseAliases[$use] = $as;
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}
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return $rename;
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}
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public function getList()
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{
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return $this->use;
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}
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public function getIterator()
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{
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return new \ArrayIterator($this->getList());
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}
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public function getPhpCode()
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{
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$reverseAliases = $this->reverseAliases;
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$reducer = function ($str, $use) use ($reverseAliases) {
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if (isset($reverseAliases[$use])) {
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return $str .= "use $use as {$reverseAliases[$use]};\n";
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} else {
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return $str .= "use $use;\n";
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}
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};
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return array_reduce($this->getList(), $reducer, '');
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}
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public function getNamespace()
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{
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return $this->namespace;
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}
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public function getParentNamespace()
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{
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if (false !== $pos = strrpos($this->namespace, '\\')) {
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return substr($this->namespace, 0, $pos);
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}
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return '';
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}
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public function getFQN($className)
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{
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if (($nsSepFirst = strpos($className, '\\')) === false) {
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if (isset($this->aliases[$className])) {
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return $this->aliases[$className];
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}
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return (string)$this->getNamespace() . "\\$className";
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}
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if ($nsSepFirst != 0) {
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throw new InvalidArgumentException("Partially qualified names are not supported");
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}
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return $className;
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}
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public function count()
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{
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return count($this->use);
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}
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}
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class PhpClass
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{
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const LICENSE_HEADER = <<<LICENSE
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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LICENSE;
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private $namespace;
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private $file;
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private $body;
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private $implements;
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private $extends;
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private $name;
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public function __construct(PhpNamespace $namespace, SplFileInfo $classFile)
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{
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$this->namespace = $namespace;
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$this->file = $classFile;
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$this->implements = array();
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$this->extends = array();
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$this->extractData();
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$namespace->addClass($this);
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}
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public static function extractName($fqn)
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{
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$nsSepLast = strrpos($fqn, '\\');
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if ($nsSepLast === false) {
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return $fqn;
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}
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return substr($fqn, $nsSepLast + 1);
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}
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private function extractData()
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{
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$renames = array();
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$useDirectives = $this->getNamespace()->getUseDirectives();
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$useExtractor = function ($m) use ($useDirectives, &$renames) {
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array_shift($m);
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if (isset($m[1])) {
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$m[1] = str_replace(" as ", '', $m[1]);
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}
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if ($rename = call_user_func_array(array($useDirectives, 'add'), $m)) {
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$renames[] = $rename;
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}
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};
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$classBuffer = stream_get_contents(fopen($this->getFile()->getPathname(), 'r'));
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$classBuffer = str_replace(self::LICENSE_HEADER, '', $classBuffer);
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$classBuffer = preg_replace('/<\?php\s?\\n\s?/', '', $classBuffer);
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$classBuffer = preg_replace('/\s?\?>\n?/ms', '', $classBuffer);
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$classBuffer = preg_replace('/namespace\s+[\w\d_\\\\]+;\s?/', '', $classBuffer);
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$classBuffer = preg_replace_callback('/use\s+([\w\d_\\\\]+)(\s+as\s+.*)?;\s?\n?/', $useExtractor, $classBuffer);
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foreach ($renames as $rename) {
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$classBuffer = str_replace($rename->from, $rename->to, $classBuffer);
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}
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$this->body = trim($classBuffer);
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$this->extractHierarchy();
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}
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private function extractHierarchy()
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{
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$implements = array();
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$extends = array();
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$extractor = function ($iterator, $callback) {
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$className = '';
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$iterator->seek($iterator->key() + 1);
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while ($iterator->valid()) {
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$token = $iterator->current();
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if (is_string($token)) {
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if (preg_match('/\s?,\s?/', $token)) {
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$callback(trim($className));
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$className = '';
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} else if ($token == '{') {
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$callback(trim($className));
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return;
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}
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}
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switch ($token[0]) {
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case T_NS_SEPARATOR:
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$className .= '\\';
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break;
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case T_STRING:
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$className .= $token[1];
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break;
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case T_IMPLEMENTS:
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case T_EXTENDS:
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$callback(trim($className));
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$iterator->seek($iterator->key() - 1);
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return;
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}
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$iterator->next();
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}
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};
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$tokens = token_get_all("<?php\n" . trim($this->getPhpCode()));
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$iterator = new ArrayIterator($tokens);
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while ($iterator->valid()) {
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$token = $iterator->current();
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if (is_string($token)) {
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$iterator->next();
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continue;
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}
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switch ($token[0]) {
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case T_CLASS:
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case T_INTERFACE:
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$iterator->seek($iterator->key() + 2);
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$tk = $iterator->current();
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$this->name = $tk[1];
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break;
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case T_IMPLEMENTS:
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$extractor($iterator, function ($fqn) use (&$implements) {
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$implements[] = $fqn;
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});
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break;
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case T_EXTENDS:
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$extractor($iterator, function ($fqn) use (&$extends) {
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$extends[] = $fqn;
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});
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break;
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}
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$iterator->next();
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}
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$this->implements = $this->guessFQN($implements);
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$this->extends = $this->guessFQN($extends);
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}
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public function guessFQN($classes)
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{
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$useDirectives = $this->getNamespace()->getUseDirectives();
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return array_map(array($useDirectives, 'getFQN'), $classes);
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}
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public function getImplementedInterfaces($all = false)
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{
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if ($all) {
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return $this->implements;
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}
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return array_filter(
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$this->implements,
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|
function ($cn) { return strpos($cn, 'Predis\\') === 0; }
|
|
);
|
|
}
|
|
|
|
public function getExtendedClasses($all = false)
|
|
{
|
|
if ($all) {
|
|
return $this->extemds;
|
|
}
|
|
|
|
return array_filter(
|
|
$this->extends,
|
|
function ($cn) { return strpos($cn, 'Predis\\') === 0; }
|
|
);
|
|
}
|
|
|
|
public function getDependencies($all = false)
|
|
{
|
|
return array_merge(
|
|
$this->getImplementedInterfaces($all),
|
|
$this->getExtendedClasses($all)
|
|
);
|
|
}
|
|
|
|
public function getNamespace()
|
|
{
|
|
return $this->namespace;
|
|
}
|
|
|
|
public function getFile()
|
|
{
|
|
return $this->file;
|
|
}
|
|
|
|
public function getName()
|
|
{
|
|
return $this->name;
|
|
}
|
|
|
|
public function getFQN()
|
|
{
|
|
return (string)$this->getNamespace() . '\\' . $this->name;
|
|
}
|
|
|
|
public function getPhpCode()
|
|
{
|
|
return $this->body;
|
|
}
|
|
|
|
public function __toString()
|
|
{
|
|
return "class " . $this->getName() . '{ ... }';
|
|
}
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
$options = CommandLine::getOptions();
|
|
$predisFile = PredisFile::from($options['source'], $options['exclude']);
|
|
$predisFile->saveTo($options['output']);
|