Mod loader

Fabric

Minecraft version

1.18.2

Patchouli version

1.18.2-71.1-FABRIC

Modloader version

Loader: 0.13.3 Api: 0.51.1+1.18.2

Modpack info

No response

The latest.log file

https://pastebin.com/AK7AJHDC

Issue description

Fabric loader is designed in such a way that mods can have multiple root paths. This is mostly used in a development environment to include resource from multiple sources. Currently patchouli call the deprecated ModContainer#getRootPath method in FabricXplatModContainer#getRootPath. This causes patchouli to only read books from one root and not all of them, causing issues for some mods.

Fixing this issue would require using the new ModContainer#getRootPaths that returns multiple roots. It would require a minor restructure of the searching code, but nothing major.

Steps to reproduce

Getting a setup with multiple roots is kind of complicated so I'll just show how to it with my mod:

1. Clone https://github.com/MattiDragon/extendeddrawers
2. Run ./gradlew runClient to start minecraft
3. Note how patchouli can't find the book specified in src/main/resources
4. Note how other systems using the multi-root method do find assets there

Other information

Multiple roots are an official fabric feature that a mod should expect to be used.

These lines add the other root (note that it already has to be on classpath if you make a test setup):
https://github.com/mattidragon/extendeddrawers/blob/1.18/build.gradle#L55-L60

This issue doesn't happen with the built jar as all the roots are merged into the same jar