mix-manifest.json should be cached or (even better) compiled

[marcelgleis]

Even the latest code of Illuminate/Foundation/Mix.php has this code in the __invoke function:

$manifests[$manifestPath] = json_decode(file_get_contents($manifestPath), true);

see https://github.com/laravel/framework/blob/10.x/src/Illuminate/Foundation/Mix.php

In my high traffic app the mix-manifest.json is about 30.000 bytes big and read+parsed on each request.

• Is it possible to use caching here?
• Or would it even be possible to compile it to an PHP array which is then cachable by OPcache?