Incorrect autoload path in util/convert.php and bulk_convert.php prevents script from running in Composer projects

[CreativeNative]

Describe the bug
The util/convert.php and bulk_convert.php scripts are trying to load the Composer autoload file using this code:

util/convert.php (line 227):
require_once(dirname(dirname(__DIR__)) . '/vendor/autoload.php');

and

util/bulk_convert.php (line 101)
require_once (dirname(__DIR__).'/vendor/autoload.php');

However, this relative path is incorrect for the typical project structure and causes a fatal error because the file cannot be found.

To Reproduce
Run the script via php convert.php from that location /vendor/tecnickcom/tc-lib-pdf-font/util$ php convert.php
It tries to require a non-existing file at vendor/vendor/autoload.php (because of the relative path).
The script crashes.

Expected behavior
The script should correctly locate the project’s root vendor/autoload.php file regardless of its nested location. A better path resolution would be:

require_once dirname(__DIR__, 4) . '/vendor/autoload.php';

Logs
PHP Warning: require_once(/path/to/vendor/tecnickcom/vendor/autoload.php): Failed to open stream: No such file or directory in /vendor/tecnickcom/tc-lib-pdf-font/util/convert.php on line 227

Environment:
OS: Ubuntu 20.04 (typical Linux)
PHP version: 8.2
Version: tc-lib-pdf-font latest (as of [date])

Additional context
This bug breaks the ability to use the conversion utility in typical Composer-based project layouts. Fixing the relative path to correctly point to the root vendor/autoload.php will improve usability and maintainability.

[nicolaasuni]

have you tried to execute the "make build" inside the util directory?

[CreativeNative]

To be serious, this was 6 months ago, and I don't remember. But I doubt that I tried to execute the “make build” inside the util directory.