Jarves\AssetHandler\ScssHandler::compileFile PHP Метод

    public function compileFile(AssetInfo $assetInfo)
    {
        $assetPath = $assetInfo->getPath();
        $localPath = $this->getAssetPath($assetPath);
        if (!file_exists($localPath)) {
            return null;
        }
        $publicPath = $this->getPublicAssetPath($assetPath);
        $targetPath = 'cache/scss/' . substr($publicPath, 0, strrpos($publicPath, '.'));
        if ('.css' !== substr($targetPath, -4)) {
            $targetPath .= '.css';
        }
        $needsCompilation = true;
        $sourceMTime = filemtime($localPath);
        $dir = dirname($localPath);
        if ($this->filesystem->has('web/' . $targetPath)) {
            $fh = $this->filesystem->handle('web/' . $targetPath);
            if ($fh) {
                $firstLine = fgets($fh);
                $info = substr($firstLine, strlen('/* compiled at '), -3);
                $spacePosition = strpos($info, ' ');
                $lastSourceMTime = 0;
                $dependencies = [];
                if ($spacePosition > 0) {
                    $lastSourceMTime = (int) substr($info, 0, $spacePosition);
                    $dependencies = trim(substr($info, $spacePosition + 1));
                    if ($dependencies) {
                        $dependencies = explode(',', trim(substr($info, $spacePosition + 1)));
                    } else {
                        $dependencies = [];
                    }
                } else {
                    //old format without dependencies
                    $lastSourceMTime = (int) $info;
                }
                $needsCompilation = $lastSourceMTime !== $sourceMTime;
                if (!$needsCompilation) {
                    //check dependencies
                    foreach ($dependencies as $dependency) {
                        list($path, $depLastMTime) = explode(':', $dependency);
                        $depLastMTime = (int) $depLastMTime;
                        if (!file_exists($dir . '/' . $path)) {
                            //depended file does not exist anymore, so we need to recompile
                            $needsCompilation = true;
                            break;
                        }
                        $depSourceMTime = filemtime($dir . '/' . $path);
                        if ($depLastMTime !== $depSourceMTime) {
                            $needsCompilation = true;
                            break;
                        }
                    }
                }
            }
        }
        if ($needsCompilation) {
            //resolve all dependencies
            $dependencies = [];
            $this->resolveDependencies($localPath, $dependencies);
            $processBuilder = new ProcessBuilder();
            $processBuilder->setInput(file_get_contents($localPath))->add('sass')->add('--scss')->add('--no-cache')->add('--unix-newlines')->add('--load-path')->add(dirname($localPath))->add($localPath)->enableOutput();
            $process = $processBuilder->getProcess();
            $process->start();
            while ($process->isRunning()) {
            }
            if (127 === $process->getExitCode()) {
                throw new \RuntimeException('sass binary not found. Please install sass first and make its in $PATH. ' . $process->getExitCodeText());
            }
            if (0 !== $process->getExitCode()) {
                throw new \RuntimeException(sprintf("Error during scss compilation of %s:\n%s\n%s\n%s", $assetPath, $process->getExitCodeText(), $process->getErrorOutput(), $process->getOutput()));
            }
            $compiled = $process->getOutput();
            $compiled = $this->replaceRelativePaths($publicPath, $targetPath, $compiled);
            $dependencies = implode(',', $dependencies);
            $info = "{$sourceMTime} {$dependencies}";
            $compiled = "/* compiled at {$info} */\n" . $compiled;
            $this->filesystem->write('web/' . $targetPath, $compiled);
        }
        $assetInfo = new AssetInfo();
        $assetInfo->setPath($targetPath);
        $assetInfo->setContentType('text/css');
        return $assetInfo;
    }