classes/Tools/Storage/StorageTool.php
public function regenerateFile($postId) {
	    @set_time_limit(120);

	    $fullsizepath = get_attached_file( $postId );
	    if (!file_exists($fullsizepath)) {
	        if (function_exists('_load_image_to_edit_path')) {
                $fullsizepath = _load_image_to_edit_path($postId);
            } else {
	            Logger::warning("The function '_load_image_to_edit_path' does not exist, using internal implementation.");
	            $fullsizepath = $this->loadImageToEditPath($postId);
                Logger::warning("$postId => $fullsizepath");
            }
	    }

	    if (!file_exists($fullsizepath)) {
		    if (strpos($fullsizepath, 'http') === 0) {
			    $path = parse_url($fullsizepath, PHP_URL_PATH);
			    $pathParts = explode('/', $path);
			    $file = array_pop($pathParts);

			    $uploadDirInfo = wp_upload_dir();

			    $filepath = $uploadDirInfo['path'].'/'.$file;
			    Logger::startTiming("Downloading fullsize '$fullsizepath' to '$filepath'");
			    file_put_contents($filepath, file_get_contents($fullsizepath));
			    Logger::endTiming("Finished downloading fullsize '$fullsizepath' to '$filepath'");

			    if (!file_exists($filepath)) {
			        return "File '$fullsizepath' could not be downloaded.";
                }

			    $fullsizepath = $filepath;
		    } else {
		        return "Local file '$fullsizepath' does not exist and is not a URL.";
		    }
	    }

	    Logger::startTiming('Regenerating metadata ...', ['id' => $postId]);
	    $metadata = wp_generate_attachment_metadata( $postId, $fullsizepath );
	    Logger::endTiming('Regenerating metadata ...', ['id' => $postId]);

	    wp_update_attachment_metadata($postId, $metadata);

	    return true;
    }
public function regenerateFile($postId) {
	    @set_time_limit(120);

	    $fullsizepath = get_attached_file( $postId );
	    if (!file_exists($fullsizepath)) {
	        if (function_exists('_load_image_to_edit_path')) {
                $fullsizepath = _load_image_to_edit_path($postId);
            } else {
	            Logger::warning("The function '_load_image_to_edit_path' does not exist, using internal implementation.");
	            $fullsizepath = $this->loadImageToEditPath($postId);
                Logger::warning("$postId => $fullsizepath");
            }
	    }

	    if (!file_exists($fullsizepath)) {
		    if (strpos($fullsizepath, 'http') === 0) {
			    $path = parse_url($fullsizepath, PHP_URL_PATH);
			    $pathParts = explode('/', $path);
			    $file = array_pop($pathParts);

			    $uploadDirInfo = wp_upload_dir();

			    $filepath = $uploadDirInfo['path'].'/'.$file;
			    Logger::startTiming("Downloading fullsize '$fullsizepath' to '$filepath'");
			    file_put_contents($filepath, file_get_contents($fullsizepath));
			    Logger::endTiming("Finished downloading fullsize '$fullsizepath' to '$filepath'");

			    if (!file_exists($filepath)) {
			        return "File '$fullsizepath' could not be downloaded.";
                }

			    $fullsizepath = $filepath;
		    } else {
		        return "Local file '$fullsizepath' does not exist and is not a URL.";
		    }
	    }

	    Logger::startTiming('Regenerating metadata ...', ['id' => $postId]);
	    $metadata = wp_generate_attachment_metadata( $postId, $fullsizepath );
	    Logger::endTiming('Regenerating metadata ...', ['id' => $postId]);

	    wp_update_attachment_metadata($postId, $metadata);

	    return true;
    }
public function regenerateFile ( $ postId ) { @ set_time_limit ( 120 ) ; $ fullsizepath = get_attached_file ( $ postId ) ; if ( ! file_exists ( $ fullsizepath ) ) { if ( function_exists ( '_load_image_to_edit_path' ) ) { $ fullsizepath = _load_image_to_edit_path ( $ postId ) ; } else { Logger :: warning ( "The function '_load_image_to_edit_path' does not exist, using internal implementation." ) ; $ fullsizepath = $ this -> loadImageToEditPath ( $ postId ) ; Logger :: warning ( "$postId => $fullsizepath" ) ; } } if ( ! file_exists ( $ fullsizepath ) ) { if ( strpos ( $ fullsizepath , 'http' ) === 0 ) { $ path = parse_url ( $ fullsizepath , PHP_URL_PATH ) ; $ pathParts = explode ( '/' , $ path ) ; $ file = array_pop ( $ pathParts ) ; $ uploadDirInfo = wp_upload_dir ( ) ; $ filepath = $ uploadDirInfo [ 'path' ] . '/' . $ file ; Logger :: startTiming ( "Downloading fullsize '$fullsizepath' to '$filepath'" ) ; file_put_contents ( $ filepath , file_get_contents ( $ fullsizepath ) ) ; Logger :: endTiming ( "Finished downloading fullsize '$fullsizepath' to '$filepath'" ) ; if ( ! file_exists ( $ filepath ) ) { return "File '$fullsizepath' could not be downloaded." ; } $ fullsizepath = $ filepath ; } else { return "Local file '$fullsizepath' does not exist and is not a URL." ; } } Logger :: startTiming ( 'Regenerating metadata ...' , [ 'id' => $ postId ] ) ; $ metadata = wp_generate_attachment_metadata ( $ postId , $ fullsizepath ) ; Logger :: endTiming ( 'Regenerating metadata ...' , [ 'id' => $ postId ] ) ; wp_update_attachment_metadata ( $ postId , $ metadata ) ; return true ; }
Regenerates an image's thumbnails and re-uploads them to the storage service.

@param $postId
@return bool|string
Regenerates an image s thumbnails and re - uploads them to the storage service .