/**
* Create a target file from a source file and postfix
*
* @param LocalFileNodeInterface $file
* @param string $postfix
*
* @return LocalFileNodeInterface
*/
protected function getTargetFile(LocalFileNodeInterface $file, $postfix)
{
if (strlen($postfix) > 0) {
$postfix = '-' . $postfix;
}
$pathInfo = pathinfo($file->getPath());
$extension = isset($pathInfo['extension']) ? '.' . $pathInfo['extension'] : '';
$path = sprintf('%s/%s%s%s', $pathInfo['dirname'], $pathInfo['filename'], $postfix, $extension);
return $file->getClone()->setPath($path);
}
/**
* Compress a file and return the new file
*
* @param LocalFileNodeInterface $node
* @param array $options
*
* @return LocalFileNodeInterface
*/
public function compress(LocalFileNodeInterface $node, array $options = [])
{
$pathInfo = pathinfo($node->getPath());
if (!$node->exists()) {
throw new InvalidArgumentException("The file: {$node} does not exist");
}
$outputFile = $node->getClone()->setPath($pathInfo['dirname'] . '/' . $pathInfo['filename'] . '.' . $this->getExtension())->setCompression($this->getName());
$this->log(LogLevel::INFO, "Compressing file: {file} into {target} using {compression}", ['file' => $node, 'target' => $outputFile, 'compression' => $this->getName()]);
$cmd = $this->getCompressCommand($node, $outputFile);
$keepOld = isset($options['keepOldFile']) ? $options['keepOldFile'] : true;
return $this->processFile($node, $outputFile, $cmd, $keepOld);
}
/**
* Find the Encoding of a specified file
*
* @param LocalFileNodeInterface $file
*
* @return null|string
* @throws ProcessFailedException
*/
public function getEncoding(LocalFileNodeInterface $file)
{
$cmd = "file --brief --uncompress --mime {$file->getPath()}";
$process = $this->getProcess($cmd);
$process->mustRun();
$result = $process->getOutput();
if (preg_match('/charset=([^\\s]+)/i', $result, $matches)) {
$this->log(LogLevel::DEBUG, "Found the encoding for '{file}' as '{encoding}'", ['file' => $file, 'encoding' => $matches[1]]);
return $matches[1];
}
return null;
}
/**
* Find the compression of a file
*
* @param LocalFileNodeInterface $file
*
* @return string
*/
public function getCompression(LocalFileNodeInterface $file)
{
$cmd = "file --brief --uncompress --mime {$file->getPath()}";
$process = $this->getProcess($cmd);
$process->mustRun();
$result = $process->getOutput();
if (preg_match('/compressed-encoding=application\\/(?:x-)?(.+?);/i', $result, $matches)) {
if ($this->factory->isCompression($matches[1])) {
$this->log(LogLevel::DEBUG, "Found the compression for '{file}' as '{compression}'", ['file' => $file, 'compression' => $matches[1]]);
return $matches[1];
}
return CompressionFactory::TYPE_UNKNOWN;
}
return CompressionFactory::TYPE_NONE;
}
/**
* Get the command line to decompress a file
*
* @param LocalFileNodeInterface $from
* @param LocalFileNodeInterface $to
*
* @return string
*
*/
public function getDecompressCommand(LocalFileNodeInterface $from, LocalFileNodeInterface $to)
{
return sprintf("unzip -p %s > %s", escapeshellarg($from->getPath()), escapeshellarg($to->getPath()));
}
