minify 用のスクリプト。

Author: polygonplanet

build/minify.php

@@ -0,0 +1,201 @@
+<?php
+//
+// Pot.js / PotLite.js
+// JavaScript code minifier
+//
+// Usage:
+//   Run server.
+//   Access http://localhost/{this-directory}/minify.php?type=full
+//   Parameters:
+//     - type:
+//         "lite" or "full"
+//         Minify "PotLite.js" if "type" is "lite".
+//         Minify "Pot.js" if "type" is "full".
+//
+
+pot_minify();
+
+class Pot_Minifier {
+
+  const MINIFIER = '../../yuicompressor-2.4.7/build/yuicompressor-2.4.7.jar';
+
+  private $dir;
+  private $fileName;
+  private $trapName;
+
+  private $parameters = array(
+    'line-break' => 160,
+    'type'       => 'js',
+    'charset'    => 'UTF-8'
+  );
+
+  function __construct() {
+    $this->init();
+    if (empty($_GET)) {
+      die('Bad Request');
+    }
+    $this->dir = dirname(__FILE__);
+    $type = null;
+    if (isset($_GET['type'])) {
+      $type = $_GET['type'];
+    }
+    switch (strtolower(trim($type))) {
+      case 'full':
+          $this->fileName    = 'pot.js';
+          $this->minName     = 'pot.min.js';
+          $this->trapName    = '@-trap-pot.js';
+          $this->trapMinName = '@-trap-pot.min.js';
+          break;
+      case 'lite':
+          $this->fileName    = 'potlite.js';
+          $this->minName     = 'potlite.min.js';
+          $this->trapName    = '@-trap-potlite.js';
+          $this->trapMinName = '@-trap-potlite.min.js';
+          break;
+      default:
+          die('Invalid type');
+    }
+  }
+
+  function init() {
+    error_reporting(E_ALL);
+    @ini_set('display_errors', 1);
+    @ini_set('log_errors', false);
+    @ini_set('track_errors', false);
+    @ini_set('default_charset', 'UTF-8');
+    if (function_exists('date_default_timezone_set') &&
+        function_exists('date_default_timezone_get')) {
+      @date_default_timezone_set(@date_default_timezone_get());
+    }
+    header('Content-Type: application/javascript');
+  }
+
+  function minify() {
+    $this->trap();
+    $command = sprintf('java -jar "%s"', $this->fullPath(self::MINIFIER));
+    $params = array();
+    foreach ($this->parameters as $name => $val) {
+      $params[] = sprintf('--%s %s', $name, $val);
+    }
+    $parameter = sprintf(
+      '%s -o "%s/%s" -v "%s/%s"',
+      implode(' ', $params),
+      $this->dir,
+      $this->trapMinName,
+      $this->dir,
+      $this->trapName
+    );
+    $cmd = strtr(sprintf('%s %s', $command, $parameter), '\\', '/');
+    $output = $this->runExternal($cmd, true);
+    printf("%s\n", $output);
+    sleep(5);
+    $this->untrap();
+    printf("Minify SIZE: %s", number_format(filesize($this->minName)));
+  }
+
+  function trap() {
+    $code = file_get_contents($this->dir . '/' . $this->fileName);
+    $code = preg_replace('<^(.*?)([(]function\b\s*\w*\s*[(])>s', '$1(function(){$2', $code, 1);
+    $code = preg_replace('<([)]\s*;?\s*)$>s', '$1})();', $code, 1);
+    file_put_contents($this->dir . '/' . $this->trapName, $code);
+  }
+
+  function untrap() {
+    $code = file_get_contents($this->dir . '/' . $this->trapMinName);
+    $code = preg_replace('<
+      ^ (.*?)
+        [(]function[(][)][{]
+        ([(]function\b\s*\w*\s*[(][^)]*[)]\s*[{])
+    >sx', '$1$2"use strict";', $code);
+    $code = preg_replace('<([();])\s*[}][)][(][)]\s*;?\s*$>', '$1', $code);
+    $code = rtrim(trim($code), ';') . ";\x0A";
+    file_put_contents($this->dir . '/' . $this->minName, $code);
+    unlink($this->dir . '/' . $this->trapName);
+    unlink($this->dir . '/' . $this->trapMinName);
+  }
+
+  function runExternal($command, $as_is = false) {
+    $result = null;
+    $specs = array(
+      0 => array('pipe', 'r'),
+      1 => array('pipe', 'w'),
+      2 => array('pipe', 'w')
+    );
+    $process = proc_open($command, $specs, $pipes);
+    if (is_resource($process)) {
+      fclose($pipes[0]);
+      if (function_exists('stream_set_blocking')) {
+        stream_set_blocking($pipes[1], 0);
+        stream_set_blocking($pipes[2], 0);
+      } else if (function_exists('socket_set_blocking')) {
+        socket_set_blocking($pipes[1], 0);
+        socket_set_blocking($pipes[2], 0);
+      }
+      $outputs = array();
+      while (!feof($pipes[1])) {
+        $outputs[] = fgets($pipes[1]);
+      }
+      $outputs[] = "\n";
+      while (!feof($pipes[2])) {
+        $outputs[] = fgets($pipes[2]);
+      }
+      fclose($pipes[1]);
+      fclose($pipes[2]);
+      proc_close($process);
+      if ($as_is) {
+        $result = implode('', $outputs);
+      } else {
+        $outputs = array_filter(array_map('trim', $outputs), 'strlen');
+        $result = array_pop($outputs);
+      }
+    }
+    return $result;
+  }
+
+  function fullPath($path, $check_exists = false) {
+    static $backslash = '\\', $slash = '/', $colon = ':', $is_win = null;
+    if ($is_win === null) {
+      $is_win = (0 === strncasecmp(PHP_OS, 'win', 3));
+    }
+    $result = '';
+    $fullpath = $path;
+    $pre0 = substr($path, 0, 1);
+    $pre1 = substr($path, 1, 1);
+    if ((!$is_win && $pre0 !== $slash)
+      || ($is_win && $pre1 !== $colon)) {
+      $fullpath = getcwd() . $slash . $path;
+    }
+    $fullpath = strtr($fullpath, $backslash, $slash);
+    $items = explode($slash, $fullpath);
+    $new_items = array();
+    foreach ($items as $item) {
+      if ($item == null || strpos($item, '.') === 0) {
+        if ($item === '..') {
+          array_pop($new_items);
+        }
+        continue;
+      }
+      $new_items[] = $item;
+    }
+    $fullpath = implode($slash, $new_items);
+    if (!$is_win) {
+      $fullpath = $slash . $fullpath;
+    }
+    $result = $fullpath;
+    if ($check_exists) {
+      clearstatcache();
+      if (!@file_exists($result)) {
+        $result = false;
+      }
+    }
+    return $result;
+  }
+}
+
+function pot_minify() {
+  $pm = new Pot_Minifier();
+  $pm->minify();
+  $pm = null;
+  unset($pm);
+}
+