Proposal: Optional Generated File Suffix

[sallustfire]

ts-proto is great and we've been using it for a while in production. However, having the generated typescript files matching the name of the protobuf file with just the .ts extension is increasingly becoming a maintenance problem. For instance, there is no convenient way to gitignore these generated file with a glob if they are adjacent to non-generated sources.

Other widely used protoc plugins seem introduce suffixes as a matter of convention. For a helloworld.proto

1. grpc-go => helloworld.pb.go
2. protoc js_out=import_style=commonjs => helloworld_pb.js
3. protoc python_out => helloworld_pb2.py
   etc

Unless there is already a mechanism for appending proto suffixes to the generated TS files which are also correctly used in the imports, we'd like to see a mechanism like --ts_proto_opt=suffix=_pb which would produce helloworld_pb.ts. Since it can default to empty, it should be backwards compatible.

Hopefully with a little direction, we'd be willing to work on a PR to introduce this functionality.

[stephenh]

Hey @sallustfire , glad to hear it's working well for you!

Yeah, I think a fileSuffix-type option would be nice; probably around in this part of the code:

https://github.com/stephenh/ts-proto/blob/main/src/plugin.ts#L30

A PR would be great!

[sallustfire]

@stephenh Great! I'm working on a commit when I have free time. Might have a few questions before I open a PR.