Decide on using `.mlem` extension instead of `.mlem.yaml` about mlem HOT 6 CLOSED

We only have ".mlem.yaml" inside ".mlem" dir, so we can just rename them ".yaml".
Other model/dataset metafiles are just "mlem.yaml". We can rename them into ".mlem" or "meta.mlem" of course, but not sure if we should.
Another feature we can get: name those files <object_type>.mlem - this way we would know which type of object is there without reading metadata (but this will make checking if dir is mlem object a bit harder)

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1. The other ➕ is faster repo scanning for example. I think rn we dont have enought arguments, issues like #37 could add something to the table. For now lets remove this from alpha scope.
2. Yep, and we can just leave .yaml for now. As for pydantic, yes, if it is possible in jsonschema, and we will try to contribute our polymorphic stuff to pydantic, we should implement this too.

from mlem.

As for jsonschema, there is a big problem: since pydantic does not support polymorphism, the schema it generates lacks this also. And I can't say for sure if it is even possible: we need to create jsonschema definitions for every implementation of each polymorphic hierarchy and somehow configure fields to be "one of the subclasses of type X".

from mlem.

Another feature we can get: name those files <object_type>.mlem.

On one hand, I would say the bigger ➕ may be for users as those who new to a particular repo can easier understand what is a particular folder: data or model. On the other, I suppose it's common to have those two in specific parent folders which names explain this good enough. Considering this, it's not clear for me, whether this worth the efforts. What do you think?

As for jsonschema, there is a big problem

Got it. So, the only thing we can do here for now is to write some generic rules, like "treat .mlem just as .yaml. Btw, do you think there is a possibility to fix this by contributing to official pydantic repo?

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I think I am happy with the way things are right now (after #114 the thought of adding different names for metafiles gives me nightmares). @aguschin WDYT? should we close this?

from mlem.

Agreed, let's close this!

from mlem.