/**
* @phutil-external-symbol function jsShrink
*/
public function transformResource($path, $data)
{
$type = self::getResourceType($path);
switch ($type) {
case 'css':
$data = $this->replaceCSSPrintRules($path, $data);
$data = $this->replaceCSSVariables($path, $data);
$data = preg_replace_callback('@url\\s*\\((\\s*[\'"]?.*?)\\)@s', nonempty($this->translateURICallback, array($this, 'translateResourceURI')), $data);
break;
}
if (!$this->minify) {
return $data;
}
// Some resources won't survive minification (like Raphael.js), and are
// marked so as not to be minified.
if (strpos($data, '@' . 'do-not-minify') !== false) {
return $data;
}
switch ($type) {
case 'css':
// Remove comments.
$data = preg_replace('@/\\*.*?\\*/@s', '', $data);
// Remove whitespace around symbols.
$data = preg_replace('@\\s*([{}:;,])\\s*@', '\\1', $data);
// Remove unnecessary semicolons.
$data = preg_replace('@;}@', '}', $data);
// Replace #rrggbb with #rgb when possible.
$data = preg_replace('@#([a-f0-9])\\1([a-f0-9])\\2([a-f0-9])\\3@i', '#\\1\\2\\3', $data);
$data = trim($data);
break;
case 'js':
// If `jsxmin` is available, use it. jsxmin is the Javelin minifier and
// produces the smallest output, but is complicated to build.
if (Filesystem::binaryExists('jsxmin')) {
$future = new ExecFuture('jsxmin __DEV__:0');
$future->write($data);
list($err, $result) = $future->resolve();
if (!$err) {
$data = $result;
break;
}
}
// If `jsxmin` is not available, use `JsShrink`, which doesn't compress
// quite as well but is always available.
$root = dirname(phutil_get_library_root('phabricator'));
require_once $root . '/externals/JsShrink/jsShrink.php';
$data = jsShrink($data);
break;
}
return $data;
}
<?php
include dirname(__FILE__) . "/../jsShrink.php";
foreach (glob(dirname(__FILE__) . "/input/*") as $filename) {
$file = file_get_contents($filename);
$shrinked = jsShrink($file);
$expect = dirname(__FILE__) . "/expect/" . basename($filename);
if (!file_exists($expect)) {
file_put_contents($expect, $shrinked);
echo basename($filename) . " created.\n";
} elseif ($shrinked !== file_get_contents($expect)) {
echo basename($filename) . " failed.\n";
}
}