Able to assign proc to RSpec::OpenAPI.path

[ohshita]

First of all, we greatly appreciate the work being done by the "rspec-openapi" project.

We would like to split the generated OpenAPI schema files and avoid the conflicts caused by joint editing of a single schema file.

To achieve this goal, we would like to see the schema files generated by "rspec-openapi" incorporated into the product to allow for the split generation per request spec files that we desire.

Therefore, we propose this change as a simple implementation to achieve our stated goal while maintaining backward compatibility.

Example:

RSpec::OpenAPI.path = ->(example) {
  if %r[spec/requests/api/v1].match?(example.file_path)
    'doc/openapi/v1.yaml'
  elsif %r[spec/requests/api/v2].match?(example.file_path)
    'doc/openapi/v2.yaml'
  else
    'doc/openapi.yaml'
  end
}

[k0kubun]

This seems useful 👍 Could you update README https://github.com/k0kubun/rspec-openapi#configuration to document this behavior?

[ohshita]

Document updated.

[k0kubun]

Thanks!

[k0kubun]

Released as v0.4.2.