Gazelle like generator about rules_proto HOT 7 CLOSED

Meaning, given a repository with proto files, automatically generate BUILD.bazel files for them? I have written such a tool but have not open-sourced it ATM, still pretty rough.

from rules_proto.

Yeah. Basically Gazelle does this for the Go code, you just have to go in and tweak it.

Right now I'm writing some build files for a bunch of ours and it's just taking forever. Most of it is boilerplate.

from rules_proto.

Gazelle actually deletes the go_library you build to reference the go_proto_library.

from rules_proto.

I'm writing such a tool as well FYI, but also not exposed.

from rules_proto.

A little update here: I have this up on a branch, but I think I/we should abandon this in favor leaning into Gazelle.

Long:

Here's an example of what I have right now:

https://github.com/uber/prototool/blob/bazel-generate/Makefile#L77
https://github.com/uber/prototool/blob/bazel-generate/example/proto/prototool.yaml#L21
https://github.com/uber/prototool/blob/bazel-generate/example/proto/uber/foo/v1/BUILD.bazel

This was fun to build, however after doing so, I looked more into Gazelle and they just (in the last two months or so) released Language extensions. There is definitely some help we could provide in making this a bit more abstract if the Gazelle maintainers were open to it, but I think it would be preferable if there were a single Bazel rule generation framework that was extensible (IMO, extensible, configurable Bazel rule generation is the missing killer Bazel tool). Instead of us all building our own tooling, it'd be nice to centralize the effort so everyone isn't reinventing the wheel (for example, prototool bazel generate is just an extremely simplistic framework relative to Gazelle for Bazel rules)

I filed bazelbuild/bazel-gazelle#452 but as I mention there, I think stackb rules would be better done separately. We could have Language implementation in stackb for Gazelle. An example of an existing one is at https://github.com/achew22/rules_sass Internally, I've found this relatively easy to set up, although it would be nice if there were some plugin mechanism (think protoc, but 2019 edition without some of the cruft) that didn't require building a new binary, or alternatively Gazelle was an abstract Golang library that allowed easy creation of independent binaries.

from rules_proto.

FWIW I know @pcj has written a Gazelle plugin for generating these rules at one client, I think we could open-source

from rules_proto.

Wow, old issue, this is now implemented on master.

from rules_proto.