);
}
- $srcPath = $image->getLocalRefPath();
+ // Get local copy source for shell scripts
+ // Thumbnail extraction is very inefficient for large files.
+ // Provide a way to pool count limit the number of downloaders.
+ if ( $image->getSize() >= 1e7 ) { // 10MB
+ $work = new PoolCounterWorkViaCallback( 'GetLocalFileCopy', sha1( $image->getName() ),
+ array(
+ 'doWork' => function() use ( $image ) {
+ return $image->getLocalRefPath();
+ }
+ )
+ );
+ $srcPath = $work->execute();
+ } else {
+ $srcPath = $image->getLocalRefPath();
+ }
+
+ if ( $srcPath === false ) { // Failed to get local copy
+ wfDebugLog( 'thumbnail',
+ sprintf( 'Thumbnail failed on %s: could not get local copy of "%s"',
+ wfHostname(), $image->getName() ) );
+
+ return new MediaTransformError( 'thumbnail_error',
+ $params['width'], $params['height'],
+ wfMessage( 'filemissing' )->text()
+ );
+ }
+
# Use a subshell (brackets) to aggregate stderr from both pipeline commands
# before redirecting it to the overall stdout. This works in both Linux and Windows XP.
$cmd = '(' . wfEscapeShellArg(