feat: File Name Equals Model Name Linter

[tjirab]

A linter to assert whether the file name (e.g. mymodel in foo/bar/mymodel.sql) matches the model name (e.g. mymodel in myschema.mymodel).

[izeigerman]

Hey @tjirab ! Thanks for your contribution! Can you please run make style and add a test for this

[izeigerman]

Also can you please share a bit more motivation behind this rule and why the following config cannot be used instead?

model_naming:
    infer_names: True

? For reference: https://sqlmesh.readthedocs.io/en/latest/guides/configuration/#model-naming

[tjirab]

Thanks @izeigerman for taking a look. Regarding the infer_names feature: I wasn't aware of this feature.

Example with infer_names enabled: /sources/google_sheets/quotas.sql would be built in catalog sources, schema google_sheets, table quotas whereas the preference is to put them into schema sources: sources.quotas.

This then should be managed in environment_catalog_mapping, is that correct? (ref). That would make this entire test redundant I think.