the protoc_gen_swagger bazel rule generates non working import path.

[ensonic]

The new bazel rules use generate an inlcude path based on the dirnames of the sources. This will not be able to disambiguate e.g. the annotation.proto from google apis with the annotations.proto in this package.

The path we get from the rule looks like this:

-Iexternal/com_google_protobuf/src
-Iexternal/com_github_googleapis_googleapis
-I.
-Iexternal/com_google_protobuf/src/google/protobuf
-Iexternal/com_google_protobuf/src/google/protobuf/compiler
-Iexternal/com_github_googleapis_googleapis/google/api
-Ibazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf
-Iexternal/grpc_ecosystem_grpc_gateway/protoc-gen-swagger/options

what the proto_library rules in bazel do looks like this:

'-Igoogle/api/annotations.proto=external/com_github_googleapis_googleapis/google/api/annotations.proto'
'-Igoogle/api/http.proto=external/com_github_googleapis_googleapis/google/api/http.proto'
'-Igoogle/protobuf/descriptor.proto=bazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf/descriptor.proto'
'-Igoogle/protobuf/empty.proto=bazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf/empty.proto'
'-Igoogle/protobuf/field_mask.proto=bazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf/field_mask.proto'
'-Igoogle/protobuf/timestamp.proto=bazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf/timestamp.proto' 
'-Iprotoc-gen-swagger/options/annotations.proto=external/grpc_ecosystem_grpc_gateway/protoc-gen-swagger/options/annotations.proto'
'-Iprotoc-gen-swagger/options/openapiv2.proto=external/grpc_ecosystem_grpc_gateway/protoc-gen-swagger/options/openapiv2.proto'
'-Igoogle/protobuf/any.proto=bazel-out/k8-opt/genfiles/external/com_google_protobuf/google/protobuf/any.proto'

The releated bazel implementation is here:
https://github.com/bazelbuild/bazel/blob/master/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoCompileActionBuilder.java#L581

I'll see if I can fix the rule.