Naming generated files

##Naming original and conversion files

By default, all original files will retain the original name. All converted files will be named in this format:

{original-file-name-without-extension}-{name-of-the-conversion}.{extension}

If you want to use a different formatting to name your original or converted file(s), you can specify the class name of your own FileNamer under the file_namer key within the media-library.php config file.

The only requirement is that your class extends Spatie\MediaLibrary\Support\FileNamer\FileNamer. In your class you should implement 3 methods:

1. originalFileName should return the name you'd like for the original file. Return the name without the extension.
2. conversionFileName should return the media file name combined with the conversion name
3. responsiveFileName should return the media file name

Here is the implementation of Spatie\MediaLibrary\Support\FileNamer\DefaultFileNamer

namespace Spatie\MediaLibrary\Support\FileNamer;

use Spatie\MediaLibrary\Conversions\Conversion;

class DefaultFileNamer extends FileNamer
{
    public function originalFileName(string $fileName): string
    {
        return pathinfo($fileName, PATHINFO_FILENAME);
    }

    public function conversionFileName(string $fileName, Conversion $conversion): string
    {
        $strippedFileName = pathinfo($fileName, PATHINFO_FILENAME);

        return "{$strippedFileName}-{$conversion->getName()}";
    }

    public function responsiveFileName(string $fileName): string
    {
        return pathinfo($fileName, PATHINFO_FILENAME);
    }
}

##Naming responsive image files

By default, all responsive image files will be named in this format:

{original-file-name-without-extension}___{name-of-the-conversion}_{width}_{height}.{extension}

Just like the naming of converted files, you can use another format for naming your files by using your own FileNamer class. It is only possible to prefix the name, because other parts are needed in processing responsive images.