How to generate data depends on exist datapack/mod

[plush helm]

I'm gonna to generate data depends on another datapack/mod's json. How can I do that?
Run the data generation seems isn't loading the datapacks.

[lapis ruin]

datapacks are loaded on world load, while in game

datagen runs at dev time, not in game

[plush helm]

Then, how to load the packs in data gen. At least the JSON.
Mod built-in data packs and data packs in some folder

[lapis ruin]

what exactly are you trynig to do? why do you need those files?

[plush helm]

Generate json patches with the same content for files from another structure mod

[lapis ruin]

load the json using FabricLoader and the ModContainer for that mod

then deserialize it / parse it

I'm not that sure that your "override" will works since mod loading order is undefined

[plush helm]

It's json patchqfrom patched mod which applying patch to json files when loading resource

[plush helm]

Is it possible to load the data packs so that I needn't specify the path of files?

[lapis ruin]

^^^^^^^^^^^^^^^^^^^^^^^^

[plush helm]

I mean load the data pack instead of json. Load it into registry

[plush helm]

Alr. After some hack it works. I use https://github.com/Bawnorton/MixinSquared cancel the original fabric one for data gen caller. And call it after data packs loaded. XD

But the registriesFuture provided by fabric to data generator is built by fabric that only contains MC's registries instead of the Minecraft one that loaded packs.

Maybe I should try to make the built registries loading packs instead of let the server starting. But it's complex. 'll use the MC's registries directly.