Copy in protobuf conventions from SDK repo. (#4643)

* Copy in protobuf conventions from SDK repo.

* fix

* Spot

conventions/build.gradle.kts

@@ -39,6 +39,7 @@ dependencies {
  // When updating, update above in plugins too
  implementation("com.diffplug.spotless:spotless-plugin-gradle:5.16.0")
  implementation("com.google.guava:guava:30.1-jre")
+ implementation("gradle.plugin.com.google.protobuf:protobuf-gradle-plugin:0.8.17")
  implementation("gradle.plugin.com.github.jengelman.gradle.plugins:shadow:7.0.0")
  implementation("org.ow2.asm:asm:9.1")
  implementation("org.ow2.asm:asm-tree:9.1")

conventions/src/main/kotlin/otel.protobuf-conventions.gradle.kts

@@ -0,0 +1,36 @@
+import com.google.protobuf.gradle.*
+
+plugins {
+ id("com.google.protobuf")
+
+ id("otel.java-conventions")
+}
+
+protobuf {
+ val versions: Map<String, String> by project
+ protoc {
+ // The artifact spec for the Protobuf Compiler
+ artifact = "com.google.protobuf:protoc:3.3.0"
+ }
+ plugins {
+ id("grpc") {
+ artifact = "io.grpc:protoc-gen-grpc-java:1.6.0"
+ }
+ }
+ generateProtoTasks {
+ all().configureEach {
+ plugins {
+ id("grpc")
+ }
+ }
+ }
+}
+
+afterEvaluate {
+ // Classpath when compiling protos, we add dependency management directly
+ // since it doesn't follow Gradle conventions of naming / properties.
+ dependencies {
+ add("compileProtoPath", platform(project(":dependencyManagement")))
+ add("testCompileProtoPath", platform(project(":dependencyManagement")))
+ }
+}

instrumentation/grpc-1.6/testing/build.gradle.kts

@@ -1,35 +1,10 @@
-import com.google.protobuf.gradle.generateProtoTasks
-import com.google.protobuf.gradle.id
-import com.google.protobuf.gradle.plugins
-import com.google.protobuf.gradle.protobuf
-import com.google.protobuf.gradle.protoc
-
 plugins {
  id("otel.java-conventions")
- id("com.google.protobuf") version "0.8.16"
+ id("otel.protobuf-conventions")
 }
 
 val grpcVersion = "1.6.0"
 
-protobuf {
- protoc {
- // Download compiler rather than using locally installed version:
- artifact = "com.google.protobuf:protoc:3.3.0"
- }
- plugins {
- id("grpc") {
- artifact = "io.grpc:protoc-gen-grpc-java:$grpcVersion"
- }
- }
- generateProtoTasks {
- all().configureEach {
- plugins {
- id("grpc")
- }
- }
- }
-}
-
 dependencies {
  api(project(":testing-common"))