You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
3.7 KiB
102 lines
3.7 KiB
<?php |
|
/** |
|
* @link http://www.yiiframework.com/ |
|
* @copyright Copyright (c) 2008 Yii Software LLC |
|
* @license http://www.yiiframework.com/license/ |
|
*/ |
|
|
|
namespace yii\web; |
|
|
|
use Yii; |
|
use yii\base\Component; |
|
use yii\base\Exception; |
|
|
|
/** |
|
* AssetConverter supports conversion of several popular script formats into JS or CSS scripts. |
|
* |
|
* It is used by [[AssetManager]] to convert files after they have been published. |
|
* |
|
* @author Qiang Xue <qiang.xue@gmail.com> |
|
* @since 2.0 |
|
*/ |
|
class AssetConverter extends Component implements AssetConverterInterface |
|
{ |
|
/** |
|
* @var array the commands that are used to perform the asset conversion. |
|
* The keys are the asset file extension names, and the values are the corresponding |
|
* target script types (either "css" or "js") and the commands used for the conversion. |
|
*/ |
|
public $commands = [ |
|
'less' => ['css', 'lessc {from} {to} --no-color'], |
|
'scss' => ['css', 'sass {from} {to}'], |
|
'sass' => ['css', 'sass {from} {to}'], |
|
'styl' => ['js', 'stylus < {from} > {to}'], |
|
'coffee' => ['js', 'coffee -p {from} > {to}'], |
|
'ts' => ['js', 'tsc --out {to} {from}'], |
|
]; |
|
|
|
/** |
|
* Converts a given asset file into a CSS or JS file. |
|
* @param string $asset the asset file path, relative to $basePath |
|
* @param string $basePath the directory the $asset is relative to. |
|
* @return string the converted asset file path, relative to $basePath. |
|
*/ |
|
public function convert($asset, $basePath) |
|
{ |
|
$pos = strrpos($asset, '.'); |
|
if ($pos !== false) { |
|
$ext = substr($asset, $pos + 1); |
|
if (isset($this->commands[$ext])) { |
|
list ($ext, $command) = $this->commands[$ext]; |
|
$result = substr($asset, 0, $pos + 1) . $ext; |
|
if (@filemtime("$basePath/$result") < filemtime("$basePath/$asset")) { |
|
$this->runCommand($command, $basePath, $asset, $result); |
|
} |
|
|
|
return $result; |
|
} |
|
} |
|
|
|
return $asset; |
|
} |
|
|
|
/** |
|
* Runs a command to convert asset files. |
|
* @param string $command the command to run |
|
* @param string $basePath asset base path and command working directory |
|
* @param string $asset the name of the asset file |
|
* @param string $result the name of the file to be generated by the converter command |
|
* @return boolean true on success, false on failure. Failures will be logged. |
|
* @throws \yii\base\Exception when the command fails and YII_DEBUG is true. |
|
* In production mode the error will be logged. |
|
*/ |
|
protected function runCommand($command, $basePath, $asset, $result) |
|
{ |
|
$command = strtr($command, [ |
|
'{from}' => escapeshellarg("$basePath/$asset"), |
|
'{to}' => escapeshellarg("$basePath/$result"), |
|
]); |
|
$descriptor = [ |
|
1 => ['pipe', 'w'], |
|
2 => ['pipe', 'w'], |
|
]; |
|
$pipes = []; |
|
$proc = proc_open($command, $descriptor, $pipes, $basePath); |
|
$stdout = stream_get_contents($pipes[1]); |
|
$stderr = stream_get_contents($pipes[2]); |
|
foreach ($pipes as $pipe) { |
|
fclose($pipe); |
|
} |
|
$status = proc_close($proc); |
|
|
|
if ($status === 0) { |
|
Yii::trace("Converted $asset into $result:\nSTDOUT:\n$stdout\nSTDERR:\n$stderr", __METHOD__); |
|
} elseif (YII_DEBUG) { |
|
throw new Exception("AssetConverter command '$command' failed with exit code $status:\nSTDOUT:\n$stdout\nSTDERR:\n$stderr"); |
|
} else { |
|
Yii::error("AssetConverter command '$command' failed with exit code $status:\nSTDOUT:\n$stdout\nSTDERR:\n$stderr", __METHOD__); |
|
} |
|
|
|
return $status === 0; |
|
} |
|
}
|
|
|