Add grpcstar_binary rule (#23)

* Add process module to readme
* Add grpcstar_binary macro/rule
* Update to bazel 6.2.1, rules go v0.39.1
* Use makefile variable for bazel
* Avoid nil pointer dereference if certs not given
* Add stage to perform bazel runs
* Remove tls example for now (re-introduce in separate commit)

Author: pcj

.bazelversion

@@ -1 +1 @@
-5.1.1
+6.2.1

.github/workflows/ci.yaml

@@ -46,3 +46,14 @@ jobs:
           --bazelrc=.bazelrc
           test
           ...
+
+      - name: bazel run
+        env:
+          # Bazelisk will download bazel to here, ensure it is cached between runs.
+          XDG_CACHE_HOME: ~/.cache/bazel-repo
+        run: >-
+          bazel
+          --bazelrc=.github/workflows/ci.bazelrc
+          --bazelrc=.bazelrc
+          run
+          //example/routeguide:server

Makefile

@@ -1,37 +1,38 @@
+BAZEL=bzl
+
 .PHONY: build
 build:
-	bazel build ...
+	$(BAZEL) build ...
 
 .PHONY: test
 test:
-	bazel test ... --runs_per_test=30
+	$(BAZEL) test ... --runs_per_test=30
 
 .PHONY: tidy
 tidy:
 	go mod tidy
-	bazel run update_go_repositories
-	bazel run gazelle
+	$(BAZEL) run update_go_repositories
+	$(BAZEL) run gazelle
 
 golden:
-	bazel run //cmd/grpcstar:grpcstar_test \
+	$(BAZEL) run //cmd/grpcstar:grpcstar_test \
+		--action_env=NOGODEBUG=http2debug=2 \
 		-- \
 		--update
 
 .PHONY: serve
 serve: build
-	GODEBUG=http2debug=2 \
 	bazel-bin/cmd/grpcstar/grpcstar_/grpcstar \
 		-p bazel-bin/example/routeguide/routeguide_proto_descriptor.pb \
 		-f cmd/grpcstar/testdata/routeguide.grpc.star
 
 .PHONY: routeguide_proto_descriptor
 routeguide_proto_descriptor:
-	bazel build //example/routeguide:routeguide_proto_descriptor
+	$(BAZEL) build //example/routeguide:routeguide_proto_descriptor
 	cp -f bazel-bin/example/routeguide/routeguide_proto_descriptor.pb pkg/starlarkgrpc/
 	cp -f bazel-bin/example/routeguide/routeguide_proto_descriptor.pb pkg/protodescriptorset/
 
 .PHONY: plugin_proto_descriptor
 plugin_proto_descriptor:
-	bazel build @protoapis//google/protobuf/compiler:plugin_descriptor
+	$(BAZEL) build @protoapis//google/protobuf/compiler:plugin_descriptor
 	cp -f bazel-bin/external/protoapis/google/protobuf/compiler/plugin_descriptor.pb cmd/protoc-gen-starlark
-

cmd/grpcstar/grpcstar_test.go

@@ -75,7 +75,6 @@ func TestGoldens(t *testing.T) {
 				os.Stderr = stdout
 				os.Stderr = stderr
 			}()
-
 			if err := run(".", []string{
 				"-protoset=../../example/routeguide/routeguide_proto_descriptor.pb",
 				"-file=" + filepath.Join("testdata", pair.file),

cmd/grpcstar/testdata/tls.grpc.star

@@ -1,4 +1,5 @@
 load("@rules_proto//proto:defs.bzl", "proto_descriptor_set", "proto_library")
+load("@build_stack_grpc_starlark//rules:grpcstar_binary.bzl", "grpcstar_binary")
 
 proto_library(
     name = "routeguide_proto",
@@ -11,3 +12,10 @@ proto_descriptor_set(
     visibility = ["//visibility:public"],
     deps = ["routeguide_proto"],
 )
+
+grpcstar_binary(
+    name = "server",
+    descriptor = ":routeguide_proto_descriptor",
+    importpath = "github.com/stackb/grpc-starlark/example/routeguide/server",
+    main = "routeguide.main.star",
+)