function advagg_get_aggregate_info_from_files in Advanced CSS/JS Aggregation 7.2

Given a group of files calculate various hashes and gather meta data.

Parameters

string $type: String; css or js.

array $files_with_meta_data: An array of CSS/JS files.

Return value

array array containing $aggregate_filename, $filenames, $aggregate_filenames_hash, $aggregate_contents_hash

1 call to advagg_get_aggregate_info_from_files()

advagg_generate_filenames in ./advagg.inc

Given a group of files calculate what the aggregate filename will be.

File

./advagg.inc, line 473

Advanced CSS/JS aggregation module.

Code

function advagg_get_aggregate_info_from_files($type, array $files_with_meta_data) {
  $filename_hashes = array();
  $content_hashes = array();
  $filenames = array();
  $files_info_filenames = array();
  foreach ($files_with_meta_data as $info) {
    if (!empty($info['data']) && is_string($info['data'])) {
      $files_info_filenames[] = $info['data'];
    }
    else {
      watchdog('advagg', 'Bad data key. File info: <code>@finfo</code>', array(
        '@finfo' => var_export($info, TRUE),
      ));
    }
  }

  // Get filesystem data.
  $files_info = advagg_get_info_on_files($files_info_filenames);
  foreach ($files_with_meta_data as $info) {

    // Skip if not a string or key doesn't exist.
    if (!is_string($info['data']) || !array_key_exists($info['data'], $files_info)) {
      continue;
    }
    $filename = $info['data'];
    $info += $files_info[$filename];

    // Skip if file doesn't exist.
    if (empty($info['content_hash'])) {
      continue;
    }

    // Add info to arrays.
    $filename_hashes[] = $info['filename_hash'];
    $content_hashes[] = $info['content_hash'];
    $filenames[$filename] = $info;
  }

  // Generate filename.
  $aggregate_filenames_hash = drupal_hash_base64(implode('', $filename_hashes));
  $aggregate_contents_hash = drupal_hash_base64(implode('', $content_hashes));
  $aggregate_filename = advagg_build_filename($type, $aggregate_filenames_hash, $aggregate_contents_hash);
  return array(
    $aggregate_filename,
    $filenames,
    $aggregate_filenames_hash,
    $aggregate_contents_hash,
  );
}