Bazel处理Protobuf文件的已知bug临时解决方案及Gazelle忽略方法咨询

Absolutely, your proposed workaround—manually generating Protobuf code with your custom protoc-gen-micro plugin and having Bazel use those pre-built files directly—is totally feasible. It’s a common stopgap for unresolved Gazelle/proto bugs like the P2 open issues you mentioned. Let’s walk through exactly how to implement this:

Step 1: Manually Generate Your Protobuf Code #

First, run your protoc command with the protoc-gen-micro plugin to generate the Go files you need. For example:

protoc \
  --micro_out=./internal/proto/generated \
  --go_out=./internal/proto/generated \
  ./internal/proto/*.proto

Adjust the input/output paths to match your project structure. Make sure the generated .go files are placed in a directory that’s easy to reference in your Bazel rules.

Step 2: Configure Bazel to Use the Pre-Generated Code #

Next, create or update a BUILD.bazel file in the directory where your generated code lives. Replace any auto-generated proto_library rules with a go_library rule that points directly to your pre-built files:

go_library(
    name = "micro_proto_lib",
    srcs = [
        "user.pb.go",
        "user.micro.go", # Generated by protoc-gen-micro
    ],
    importpath = "your/project/import/path/internal/proto/generated",
    visibility = ["//visibility:public"],
    deps = [
        # Add dependencies required by your micro-generated code, e.g.:
        "@com_github_micro_go_micro_v2//:go_default_library",
        "@com_github_golang_protobuf//proto:go_default_library",
    ],
)

In any targets that need to use this proto code, replace dependencies on the old proto_library with this new go_library target (e.g., //internal/proto/generated:micro_proto_lib).

Step 3: Make Gazelle Ignore Your Original Protobuf Files #

To prevent Gazelle from re-generating conflicting proto_library rules or overwriting your manual config, you have a few options:

Option 1: Use gazelle:ignore in a BUILD File #

Add this directive to the BUILD.bazel file in your proto directory (or the project root) to exclude specific proto files or the entire directory:

# Ignore all proto files in this directory
gazelle:ignore *.proto

# Or ignore a specific directory
gazelle:ignore ./internal/proto

Option 2: Use a .gazelleignore File #

Create a .gazelleignore file in your project root (or the proto directory) with the paths you want Gazelle to skip:

# .gazelleignore content
internal/proto/*.proto

Option 3: Update Gazelle’s YAML Config #

If you use a gazelle.yaml config file, add an ignore section:

ignore:
  - "internal/proto/*.proto"

Key Notes to Avoid Issues #

• Double-check that the importpath in your go_library matches the package path in your generated Go files—this prevents import errors in other Bazel targets.
• Every time you modify your original .proto files, remember to re-run the protoc command to regenerate the code, and update the srcs list in your go_library if new files are added.
• Delete any old proto_library or go_proto_library rules that Gazelle previously generated for these files to avoid conflicts.

内容的提问来源于stack exchange，提问作者Styles