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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Deploy\Package\Bundle;
use Magento\Deploy\Config\BundleConfig;
use Magento\Deploy\Package\BundleInterface;
use Magento\Framework\Filesystem;
use \Magento\Framework\Filesystem\File\WriteInterface;
use Magento\Framework\App\Filesystem\DirectoryList;
use Magento\Framework\View\Asset\Minification;
/**
* RequireJs static files bundle object
*
* All files added will be bundled to multiple bundle files compatible with RequireJS AMD format
*/
class RequireJs implements BundleInterface
{
/**
* Static files Bundling configuration class
*
* @var BundleConfig
*/
private $bundleConfig;
/**
* Helper class for static files minification related processes
*
* @var Minification
*/
private $minification;
/**
* Static content directory writable interface
*
* @var WriteInterface
*/
private $staticDir;
/**
* Package area
*
* @var string
*/
private $area;
/**
* Package theme
*
* @var string
*/
private $theme;
/**
* Package locale
*
* @var string
*/
private $locale;
/**
* Bundle content pools
*
* @var string[]
*/
private $contentPools = [
'js' => 'jsbuild',
'html' => 'text'
];
/**
* Files to be bundled
*
* @var array[]
*/
private $files = [
'jsbuild' => [],
'text' => []
];
/**
* Files content cache
*
* @var string[]
*/
private $fileContent = [];
/**
* Incremental index of bundle file
*
* Chosen bundling strategy may result in creating multiple bundle files instead of one
*
* @var int
*/
private $bundleFileIndex = 0;
/**
* Relative path to directory where bundle files should be created
*
* @var string
*/
private $pathToBundleDir;
/**
* @var Filesystem
*/
private $filesystem;
/**
* Bundle constructor
*
* @param Filesystem $filesystem
* @param BundleConfig $bundleConfig
* @param Minification $minification
* @param string $area
* @param string $theme
* @param string $locale
* @param array $contentPools
*/
public function __construct(
Filesystem $filesystem,
BundleConfig $bundleConfig,
Minification $minification,
$area,
$theme,
$locale,
array $contentPools = []
) {
$this->filesystem = $filesystem;
$this->bundleConfig = $bundleConfig;
$this->minification = $minification;
$this->staticDir = $filesystem->getDirectoryWrite(DirectoryList::STATIC_VIEW);
$this->area = $area;
$this->theme = $theme;
$this->locale = $locale;
$this->contentPools = array_merge($this->contentPools, $contentPools);
$this->pathToBundleDir = $this->area . '/' . $this->theme . '/' . $this->locale . '/' . self::BUNDLE_JS_DIR;
}
/**
* @inheritdoc
*/
public function addFile($filePath, $sourcePath, $contentType)
{
// all unknown content types designated to "text" pool
$contentPoolName = isset($this->contentPools[$contentType]) ? $this->contentPools[$contentType] : 'text';
$this->files[$contentPoolName][$filePath] = $sourcePath;
return true;
}
/**
* @inheritdoc
*/
public function flush()
{
$this->bundleFileIndex = 0;
$bundleFile = null;
foreach ($this->files as $contentPoolName => $files) {
if (empty($files)) {
continue;
}
$content = [];
$freeSpace = $this->getBundleFileMaxSize();
$bundleFile = $this->startNewBundleFile($contentPoolName);
foreach ($files as $filePath => $sourcePath) {
$fileContent = $this->getFileContent($sourcePath);
$size = mb_strlen($fileContent, 'utf-8') / 1024;
if ($freeSpace > $size) {
$freeSpace -= $size;
$content[$this->minification->addMinifiedSign($filePath)] = $fileContent;
} else {
$this->endBundleFile($bundleFile, $content);
$freeSpace = $this->getBundleFileMaxSize();
$freeSpace -= $size;
$content = [
$this->minification->addMinifiedSign($filePath) => $fileContent
];
$bundleFile = $this->startNewBundleFile($contentPoolName);
}
}
$this->endBundleFile($bundleFile, $content);
}
if ($bundleFile) {
$bundleFile->write($this->getInitJs());
}
$this->files = [];
return true;
}
/**
* @inheritdoc
*/
public function clear()
{
$this->staticDir->delete($this->pathToBundleDir);
return true;
}
/**
* Create new bundle file and write beginning content to it
*
* @param string $contentPoolName
* @return WriteInterface
*/
private function startNewBundleFile($contentPoolName)
{
$bundleFile = $this->staticDir->openFile(
$this->minification->addMinifiedSign($this->pathToBundleDir . '/bundle' . $this->bundleFileIndex . '.js')
);
$bundleFile->write("require.config({\"config\": {\n");
$bundleFile->write(" \"{$contentPoolName}\":");
++$this->bundleFileIndex;
return $bundleFile;
}
/**
* Write ending content to bundle file
*
* @param WriteInterface $bundleFile
* @param array $contents
* @return bool true on success
*/
private function endBundleFile(WriteInterface $bundleFile, array $contents)
{
if ($contents) {
$content = json_encode($contents, JSON_UNESCAPED_SLASHES);
$bundleFile->write("{$content}\n");
} else {
$bundleFile->write("{}\n");
}
$bundleFile->write("}});\n");
return true;
}
/**
* Get content of static file
*
* @param string $sourcePath
* @return string
*/
private function getFileContent($sourcePath)
{
if (!isset($this->fileContent[$sourcePath])) {
$content = $this->staticDir->readFile($this->minification->addMinifiedSign($sourcePath));
if (mb_detect_encoding($content) !== "UTF-8") {
$content = mb_convert_encoding($content, "UTF-8");
}
$this->fileContent[$sourcePath] = $content;
}
return $this->fileContent[$sourcePath];
}
/**
* Get max size of bundle files (in KB)
*
* @return int
*/
private function getBundleFileMaxSize()
{
return $this->bundleConfig->getBundleFileMaxSize($this->area, $this->theme);
}
/**
* Bundle initialization script content (this must be added to the latest bundle file at the very end)
*
* @return string
*/
private function getInitJs()
{
return "require.config({\n" .
" bundles: {\n" .
" 'mage/requirejs/static': [\n" .
" 'jsbuild',\n" .
" 'buildTools',\n" .
" 'text',\n" .
" 'statistician'\n" .
" ]\n" .
" },\n" .
" deps: [\n" .
" 'jsbuild'\n" .
" ]\n" .
"});\n";
}
}