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<?php |
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namespace EM\CssCompiler\Processor; |
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use Composer\IO\IOInterface; |
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use EM\CssCompiler\Container\FileContainer; |
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use EM\CssCompiler\Exception\CompilerException; |
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use EM\CssCompiler\Exception\FileException; |
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use Leafo\ScssPhp\Compiler as SASSCompiler; |
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use Leafo\ScssPhp\Exception\ParserException; |
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use lessc as LESSCompiler; |
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use scss_compass as CompassCompiler; |
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/** |
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* @see ProcessorTest |
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* |
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* @since 0.1 |
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*/ |
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class Processor |
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{ |
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const FORMATTER_COMPRESSED = 'compressed'; |
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const FORMATTER_CRUNCHED = 'crunched'; |
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const FORMATTER_EXPANDED = 'expanded'; |
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const FORMATTER_NESTED = 'nested'; |
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const FORMATTER_COMPACT = 'compact'; |
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public static $supportedFormatters = [ |
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self::FORMATTER_COMPRESSED, |
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self::FORMATTER_CRUNCHED, |
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self::FORMATTER_EXPANDED, |
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self::FORMATTER_NESTED, |
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self::FORMATTER_COMPACT |
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]; |
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/** |
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* @var IOInterface |
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*/ |
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private $io; |
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/** |
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* @var FileContainer[] |
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*/ |
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private $files = []; |
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/** |
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* @var SASSCompiler |
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*/ |
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private $sass; |
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/** |
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* @var LESSCompiler |
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*/ |
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private $less; |
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public function __construct(IOInterface $io) |
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{ |
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$this->io = $io; |
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$this->initCompilers(); |
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} |
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protected function initCompilers() |
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{ |
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$this->less = new LESSCompiler(); |
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$this->sass = new SASSCompiler(); |
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/** attaches compass functionality to the SASS compiler */ |
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new CompassCompiler($this->sass); |
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} |
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/** |
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* @param string $inputPath |
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* @param string $outputPath |
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* |
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* @throws \Exception |
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*/ |
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public function attachFiles($inputPath, $outputPath) |
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{ |
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if (is_dir($inputPath)) { |
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$files = scandir($inputPath); |
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unset($files[0], $files[1]); |
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foreach ($files as $file) { |
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$this->attachFiles("$inputPath/$file", $outputPath); |
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} |
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} else if (is_file($inputPath)) { |
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$this->files[] = new FileContainer($inputPath, $outputPath); |
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} else { |
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throw new \Exception("file doesn't exists"); |
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} |
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} |
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/** |
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* @return FileContainer[] |
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*/ |
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public function getFiles() |
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{ |
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return $this->files; |
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} |
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/** |
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* @return string[] |
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*/ |
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protected function concatOutput() |
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{ |
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$outputMap = []; |
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foreach ($this->files as $file) { |
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if (!isset($outputMap[$file->getOutputPath()])) { |
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$outputMap[$file->getOutputPath()] = ''; |
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} |
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$outputMap[$file->getOutputPath()] .= $file->getOutputContent(); |
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} |
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return $outputMap; |
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} |
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/** |
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* save output into file |
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*/ |
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public function saveOutput() |
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{ |
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foreach ($this->concatOutput() as $path => $content) { |
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$directory = dirname($path); |
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if (!is_dir($directory)) { |
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$this->io->write("<info>creating directory</info>: {$directory}"); |
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mkdir($directory, 0755, true); |
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} |
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$this->io->write("<info>save output into</info>: {$path}"); |
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file_put_contents($path, $content); |
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} |
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} |
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/** |
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* @param string $formatter |
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* |
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* @throws CompilerException |
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*/ |
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public function processFiles($formatter) |
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{ |
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$this->sass->setFormatter($this->getFormatterClass($formatter)); |
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$this->io->write("<info>use '{$formatter}' formatting</info>"); |
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foreach ($this->files as $file) { |
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$this->io->write("<info>processing</info>: {$file->getInputPath()}"); |
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$this->fetchInputContextIntoFile($file); |
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try { |
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$this->processFile($file); |
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} catch (CompilerException $e) { |
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$this->io->writeError("<error>failed to process: {$file->getOutputPath()}</error>"); |
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} |
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} |
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} |
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/** |
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* @param FileContainer $file |
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* |
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* @return FileContainer |
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* @throws CompilerException |
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*/ |
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public function processFile(FileContainer $file) |
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{ |
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switch ($file->getType()) { |
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case FileContainer::TYPE_SCSS: |
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return $this->compileSCSS($file); |
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case FileContainer::TYPE_LESS: |
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return $this->compileLESS($file); |
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} |
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throw new CompilerException('unknown compiler'); |
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} |
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/** |
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* @param FileContainer $file |
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* |
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* @return $this |
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* @throws CompilerException |
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*/ |
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protected function compileSCSS(FileContainer $file) |
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{ |
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try { |
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$this->sass->addImportPath(dirname($file->getInputPath())); |
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$content = $this->sass->compile($file->getInputContent()); |
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return $file->setOutputContent($content); |
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} catch (ParserException $e) { |
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throw new CompilerException($e->getMessage(), 1, $e); |
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} |
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} |
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/** |
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* @param FileContainer $file |
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* |
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* @return $this |
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* @throws CompilerException |
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*/ |
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protected function compileLESS(FileContainer $file) |
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{ |
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try { |
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return $file->setOutputContent($this->less->compileFile($file->getInputPath())); |
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} catch (\Exception $e) { |
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throw new CompilerException($e->getMessage(), 1, $e); |
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} |
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} |
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/** |
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* @param string $formatter |
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* |
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* @return string |
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*/ |
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protected function getFormatterClass($formatter) |
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{ |
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if (!in_array($formatter, static::$supportedFormatters)) { |
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throw new \InvalidArgumentException('unknown formatter, available options are: ' . print_r(static::$supportedFormatters, true)); |
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} |
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return 'Leafo\\ScssPhp\\Formatter\\' . ucfirst($formatter); |
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} |
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/** |
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* @param FileContainer $file |
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* |
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* @throws FileException |
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*/ |
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protected function fetchInputContextIntoFile(FileContainer $file) |
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{ |
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if (!file_exists($file->getInputPath())) { |
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throw new FileException("file: {$file->getInputPath()} doesn't exists"); |
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} |
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$file->setInputContent(file_get_contents($file->getInputPath())); |
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} |
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} |
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learn-symfony /
css-compiler
