Given a filename calculate various hashes and gather meta data.


  'filesize' => filesize($file),
  'mtime' => @filemtime($file),
  'filename_hash' => Crypt::hashBase64($file),
  'content_hash' => Crypt::hashBase64($file_contents),
  'linecount' => $linecount,
  'data' => $file,
  'fileext' => $ext,
  ...

Parameters

string $file: A filename/path.

array $cached: An array of previous values from the cache.

string $file_contents: Contents of the given file.

Return value

array $data which contains

1 call to Files::scanFile()
Files::getMultiple in src/State/Files.php

File

src/State/Files.php, line 96

Class

Files
Provides AdvAgg with a file status state system using a key value store.

Namespace

Drupal\advagg\State

Code

public function scanFile($file, array $cached = [], $file_contents = '') {
    // Clear PHP's internal file status cache.
    clearstatcache(TRUE, $file);
    if (empty($file_contents)) {
        $file_contents = (string) @file_get_contents($file);
    }
    $content_hash = Crypt::hashBase64($file_contents);
    if (!empty($cached) && $content_hash != $cached['content_hash']) {
        $changes = $cached['changes'] + 1;
    }
    else {
        $changes = 0;
    }
    $ext = pathinfo($file, PATHINFO_EXTENSION);
    if ($ext !== 'css' && $ext !== 'js') {
        if ($ext === 'less') {
            $ext = 'css';
        }
    }
    if ($ext === 'css') {
        // Get the number of selectors.
        // http://stackoverflow.com/a/12567381/125684
        $linecount = preg_match_all('/\\{.+?\\}|,/s', $file_contents);
    }
    else {
        // Get the number of lines.
        $linecount = substr_count($file_contents, "\n");
    }
    // Build meta data array.
    $data = [
        'filesize' => (int) @filesize($file),
        'mtime' => @filemtime($file),
        'filename_hash' => Crypt::hashBase64($file),
        'content_hash' => $content_hash,
        'linecount' => $linecount,
        'data' => $file,
        'fileext' => $ext,
        'updated' => REQUEST_TIME,
        'contents' => $file_contents,
        'changes' => $changes,
    ];
    if ($ext === 'css' && $linecount > $this->config
        ->get('css.ie.selector_limit')) {
        $this->splitCssFile($data);
    }
    // Run hook so other modules can modify the data.
    // Call hook_advagg_scan_file_alter().
    $this->moduleHandler
        ->alter('advagg_scan_file', $file, $data, $cached);
    unset($data['contents']);
    $this->set($file, $data);
    return $data;
}