Fix label references when consumed as a library (#403)

* Fix label references when consumed as a library

* Use remote java runtime

* buildifier: fix

Author: pcj

.bazelrc

@@ -15,6 +15,9 @@ build --incompatible_strict_action_env
 # Don't use legacy repository rules.
 build --incompatible_disable_native_repo_rules
 
+# Use a download java runtime
+build --java_runtime_version=remotejdk_21
+
 # C++17 for protobuf compatibility
 build --host_cxxopt=-std=c++17 --cxxopt=-std=c++17
 

BUILD.bazel

@@ -1,5 +1,5 @@
-load("@//rules:proto_gazelle.bzl", "proto_gazelle")
 load("@bazel_gazelle//:def.bzl", "gazelle_binary")
+load("@build_stack_rules_proto//rules:proto_gazelle.bzl", "proto_gazelle")
 load("@npm_ts_proto//:defs.bzl", "npm_link_all_packages")
 
 exports_files([
@@ -29,9 +29,9 @@ gazelle_binary(
 
 proto_gazelle(
     name = "gazelle",
-    cfgs = [":rules_proto_config.yaml"],
+    cfgs = ["//:rules_proto_config.yaml"],
     external = "static",
-    gazelle = ":gazelle-protobuf",
+    gazelle = "//:gazelle-protobuf",
     imports = [
         "@googleapis//:imports.csv",
         "@protobufapis//:imports.csv",

MODULE.bazel

@@ -2,16 +2,13 @@
 
 module(
     name = "build_stack_rules_proto",
-    version = "0.0.0",
     compatibility_level = 1,
 )
 
 # -------------------------------------------------------------------
 # Bazel Dependencies
 # -------------------------------------------------------------------
 
-PROTOBUF_VERSION = "32.0"
-
 bazel_dep(name = "zlib", version = "1.3.1.bcr.6")
 bazel_dep(name = "rules_shell", version = "0.6.1")
 bazel_dep(name = "rules_scala", version = "7.0.0", repo_name = "io_bazel_rules_scala")
@@ -24,7 +21,7 @@ bazel_dep(name = "rules_java", version = "8.15.1")
 bazel_dep(name = "rules_go", version = "0.57.0", repo_name = "io_bazel_rules_go")
 bazel_dep(name = "rules_foreign_cc", version = "0.15.0")  # specified to ensure more recent version than @grpc/@opencensus-cpp/@google_benchmark
 bazel_dep(name = "rules_cc", version = "0.2.0")
-bazel_dep(name = "protobuf", version = PROTOBUF_VERSION, repo_name = "com_google_protobuf")
+bazel_dep(name = "protobuf", version = "32.0", repo_name = "com_google_protobuf")
 bazel_dep(name = "package_metadata", version = "0.0.5")
 bazel_dep(name = "grpc", version = "1.74.1", repo_name = "com_github_grpc_grpc")
 bazel_dep(name = "grpc-java", version = "1.71.0", repo_name = "io_grpc_grpc_java")
@@ -318,7 +315,7 @@ proto_repository.archive(
     ] + proto_language_directives,
     build_file_generation = "clean",
     build_file_proto_mode = "file",
-    cfgs = ["@//:rules_proto_config.yaml"],
+    cfgs = ["//:rules_proto_config.yaml"],
     deleted_files = [
         "google/protobuf/*test*.proto",
         "google/protobuf/*unittest*.proto",

rules/proto_compile.bzl

@@ -369,9 +369,6 @@ def _proto_compile_impl(ctx):
         for c in commands:
             # buildifier: disable=print
             print("COMMAND:", c)
-        for f in tools:
-            # buildifier: disable=print
-            print("TOOL:", f.path)
         for a in replaced_args:
             # buildifier: disable=print
             print("ARG:", a)

rules/proto_gazelle.bzl

@@ -111,7 +111,7 @@ _gazelle_runner = rule(
     implementation = _gazelle_runner_impl,
     attrs = {
         "gazelle": attr.label(
-            default = "@build_stack_rules_proto//cmd/gazelle",
+            default = str(Label("@build_stack_rules_proto//cmd/gazelle")),
             executable = True,
             cfg = "exec",
         ),