ok, builds with bazel

BUILD

@@ -1,21 +1,42 @@
-load("@rules_proto//proto:defs.bzl", "proto_library")
-load("@io_bazel_rules_rust//proto:proto.bzl", "rust_proto_library")
-load("@io_bazel_rules_rust//proto:toolchain.bzl", "PROTO_COMPILE_DEPS", "rust_proto_toolchain")
+# load("@rules_proto//proto:defs.bzl", "proto_library")
+# load("@io_bazel_rules_rust//proto:proto.bzl", "rust_proto_library")
+# load("@io_bazel_rules_rust//proto:toolchain.bzl", "PROTO_COMPILE_DEPS", "rust_proto_toolchain")
+load("@io_bazel_rules_rust//rust:rust.bzl", "rust_library", "rust_binary")
 
-rust_proto_toolchain(name = "default-proto-toolchain-impl")
-
-toolchain(
-    name = "default-proto-toolchain",
-    toolchain = ":default-proto-toolchain-impl",
-    toolchain_type = "@io_bazel_rules_rust//proto:toolchain",
+rust_library(
+    name = "rustc_worker",
+    srcs = [
+        "src/lib.rs",
+        "src/worker_protocol.rs",
+    ],
+    deps = [
+        "@io_bazel_rules_rust//proto/raze:protobuf",
+    ],
 )
 
-proto_library(
-    name = "worker_protocol_proto",
-    srcs = ["src/worker_protocol.proto"],
+rust_binary(
+    name = "rustc-worker",
+    srcs = ["src/main.rs"],
+    deps = [
+        ":rustc_worker",
+        "@io_bazel_rules_rust//proto/raze:protobuf",
+    ],
 )
 
-rust_proto_library(
-    name = "worker_protocol",
-    deps = [":worker_protocol_proto"],
-)
+# rust_proto_toolchain(name = "default-proto-toolchain-impl")
+# 
+# toolchain(
+#     name = "default-proto-toolchain",
+#     toolchain = ":default-proto-toolchain-impl",
+#     toolchain_type = "@io_bazel_rules_rust//proto:toolchain",
+# )
+# 
+# proto_library(
+#     name = "worker_protocol_proto",
+#     srcs = ["src/worker_protocol.proto"],
+# )
+# 
+# rust_proto_library(
+#     name = "worker_protocol",
+#     deps = [":worker_protocol_proto"],
+# )

README.md

@@ -96,10 +96,13 @@ Incrementality is obtained like this:
 The Worker protocol is described in a [protocol
 buffer](https://github.com/bazelbuild/bazel/blob/07e152e508d9926f1ec87cdf33c9970ee2f18a41/src/main/protobuf/worker_protocol.proto).
 This protocol will change very rarely, so to simplify the build process, we
-vendor the [`prost-build`](https://docs.rs/prost-build/) generated code in the
-tree. This avoids the need for a build.rs and related dependencies. If you need
-to update this, use a `build.rs` as described in the `prost-build`
-documentation to obtain a new module and replace `src/blaze_worker.rs`.
+vendor the generated code in the tree. This avoids the need for worker
+consumers (via Bazel) to build `protoc` and `protobuf-codegen`. If you need to
+update this:
+
+1. Make sure `protoc` is installed for your operating system and in the path.
+2. `cargo install protobuf-codegen --version 2.8.2`.
+3. `protoc --rust_out src/ src/worker_protocol.proto`.
 
 ## TODO
 

WORKSPACE

@@ -26,6 +26,9 @@ load("@io_bazel_rules_rust//:workspace.bzl", "bazel_version")
 bazel_version(name = "bazel_version")
 load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
+# load("@io_bazel_rules_rust//proto:repositories.bzl", "rust_proto_repositories")
+# rust_proto_repositories()
+
 http_archive(
     name = "rules_proto",
     sha256 = "602e7161d9195e50246177e7c55b2f39950a9cf7366f74ed5f22fd45750cd208",
@@ -39,6 +42,8 @@ load("@rules_proto//proto:repositories.bzl", "rules_proto_dependencies", "rules_
 rules_proto_dependencies()
 rules_proto_toolchains()
 
-register_toolchains(
-    ":default-proto-toolchain",
-)
+# register_toolchains(
+#     ":default-proto-toolchain",
+# )
+load("@io_bazel_rules_rust//proto/raze:crates.bzl", "raze_fetch_remote_crates")
+raze_fetch_remote_crates()