Version 1

[yaffs-website] / vendor / psy / psysh / src / Psy / Compiler.php

diff --git a/vendor/psy/psysh/src/Psy/Compiler.php b/vendor/psy/psysh/src/Psy/Compiler.php
new file mode 100644 (file)
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+++ b/vendor/psy/psysh/src/Psy/Compiler.php
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+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy;
+
+use Symfony\Component\Finder\Finder;
+
+/**
+ * A Psy Shell Phar compiler.
+ */
+class Compiler
+{
+    /**
+     * Compiles psysh into a single phar file.
+     *
+     * @param string $pharFile The full path to the file to create
+     */
+    public function compile($pharFile = 'psysh.phar')
+    {
+        if (file_exists($pharFile)) {
+            unlink($pharFile);
+        }
+
+        $this->version = Shell::VERSION;
+
+        $phar = new \Phar($pharFile, 0, 'psysh.phar');
+        $phar->setSignatureAlgorithm(\Phar::SHA1);
+
+        $phar->startBuffering();
+
+        $finder = Finder::create()
+            ->files()
+            ->ignoreVCS(true)
+            ->name('*.php')
+            ->notName('Compiler.php')
+            ->notName('Autoloader.php')
+            ->in(__DIR__ . '/..');
+
+        foreach ($finder as $file) {
+            $this->addFile($phar, $file);
+        }
+
+        $finder = Finder::create()
+            ->files()
+            ->ignoreVCS(true)
+            ->name('*.php')
+            ->exclude('Tests')
+            ->exclude('tests')
+            ->exclude('Test')
+            ->exclude('test')
+            ->in(__DIR__ . '/../../build-vendor');
+
+        foreach ($finder as $file) {
+            $this->addFile($phar, $file);
+        }
+
+        // Stubs
+        $phar->setStub($this->getStub());
+
+        $phar->stopBuffering();
+
+        unset($phar);
+    }
+
+    /**
+     * Add a file to the psysh Phar.
+     *
+     * @param \Phar        $phar
+     * @param \SplFileInfo $file
+     * @param bool         $strip (default: true)
+     */
+    private function addFile($phar, $file, $strip = true)
+    {
+        $path = str_replace(dirname(dirname(__DIR__)) . DIRECTORY_SEPARATOR, '', $file->getRealPath());
+
+        $content = file_get_contents($file);
+        if ($strip) {
+            $content = $this->stripWhitespace($content);
+        } elseif ('LICENSE' === basename($file)) {
+            $content = "\n" . $content . "\n";
+        }
+
+        $phar->addFromString($path, $content);
+    }
+
+    /**
+     * Removes whitespace from a PHP source string while preserving line numbers.
+     *
+     * @param string $source A PHP string
+     *
+     * @return string The PHP string with the whitespace removed
+     */
+    private function stripWhitespace($source)
+    {
+        if (!function_exists('token_get_all')) {
+            return $source;
+        }
+
+        $output = '';
+        foreach (token_get_all($source) as $token) {
+            if (is_string($token)) {
+                $output .= $token;
+            } elseif (in_array($token[0], array(T_COMMENT, T_DOC_COMMENT))) {
+                $output .= str_repeat("\n", substr_count($token[1], "\n"));
+            } elseif (T_WHITESPACE === $token[0]) {
+                // reduce wide spaces
+                $whitespace = preg_replace('{[ \t]+}', ' ', $token[1]);
+                // normalize newlines to \n
+                $whitespace = preg_replace('{(?:\r\n|\r|\n)}', "\n", $whitespace);
+                // trim leading spaces
+                $whitespace = preg_replace('{\n +}', "\n", $whitespace);
+                $output .= $whitespace;
+            } else {
+                $output .= $token[1];
+            }
+        }
+
+        return $output;
+    }
+
+    private static function getStubLicense()
+    {
+        $license = file_get_contents(__DIR__ . '/../../LICENSE');
+        $license = str_replace('The MIT License (MIT)', '', $license);
+        $license = str_replace("\n", "\n * ", trim($license));
+
+        return $license;
+    }
+
+    const STUB_AUTOLOAD = <<<'EOS'
+    Phar::mapPhar('psysh.phar');
+    require 'phar://psysh.phar/build-vendor/autoload.php';
+EOS;
+
+    /**
+     * Get a Phar stub for psysh.
+     *
+     * This is basically the psysh bin, with the autoload require statements swapped out.
+     *
+     * @return string
+     */
+    private function getStub()
+    {
+        $content = file_get_contents(__DIR__ . '/../../bin/psysh');
+        if (version_compare(PHP_VERSION, '5.4', '<')) {
+            $content = str_replace('#!/usr/bin/env php', '#!/usr/bin/env php -d detect_unicode=Off', $content);
+        }
+        $content = preg_replace('{/\* <<<.*?>>> \*/}sm', self::STUB_AUTOLOAD, $content);
+        $content = preg_replace('/\\(c\\) .*?with this source code./sm', self::getStubLicense(), $content);
+
+        $content .= '__HALT_COMPILER();';
+
+        return $content;
+    }
+}