Unable to resolve nested `$ref`s when using local files

[GitGraf]

I'm trying to build a repository hosting JSON schemas of our application data, alongside with examples of those schemas.
To make sure the examples stay in sync with the schemas, I want to validate them.

If my schema references another schema, validation seems to work as expected.
However, if that other schema in turn references a third schema, that third schema cannot be resolved.

Please see https://github.com/GitGraf/check-jsonschema-resolve for a minimal reproducer.

[sirosen]

I haven't made time to dig into this, but I want to say

1. Thanks for the report and reproducer repo! It makes it easy to work on this.
2. We seem to be getting slop PRs for this, which are putting weird bodges in place rather than looking at the underlying issue.

This is supposed to work already; that's what this bit in the ref resolution code is for. But that may be somehow messing up retrieval of $refs in this kind of nested structure.

I just triple checked the spec for draft 2020 (if it is different in earlier drafts, I can refine this more later), and $ref resolution is always supposed to be relative to the current document, not necessarily the root. I think the retrieval-uri vs $id handling may currently be munging that a bit.