Add build workflows

.github/workflows/main-build.yml

@@ -0,0 +1,38 @@
+name: "Main Build"
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/[email protected]
+        with:
+          fetch-depth: 0
+      - id: setup-java-17
+        name: Setup Java 17
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 17
+      - uses: burrunan/[email protected]
+        with:
+          remote-build-cache-proxy-enabled: false
+          arguments: build --stacktrace
+          properties: |
+            org.gradle.java.installations.paths=${{ steps.setup-java-17.outputs.path }}
+      - uses: burrunan/[email protected]
+        with:
+          remote-build-cache-proxy-enabled: false
+          arguments: snapshot --stacktrace
+          properties: |
+            org.gradle.java.installations.paths=${{ steps.setup-java-17.outputs.path }}
+        env:
+          SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
+          SONATYPE_KEY: ${{ secrets.SONATYPE_KEY }}
+          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+          GPG_PASSWORD: ${{ secrets.GPG_PASSWORD }}

.github/workflows/pr-build.yml

@@ -0,0 +1,27 @@
+name: "PR Build"
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/[email protected]
+        with:
+          fetch-depth: 0
+      - id: setup-java-17
+        name: Setup Java 17
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 17
+      - uses: burrunan/[email protected]
+        with:
+          remote-build-cache-proxy-enabled: false
+          arguments: build --stacktrace
+          properties: |
+            org.gradle.java.installations.paths=${{ steps.setup-java-17.outputs.path }}

.github/workflows/release-build.yml

@@ -0,0 +1,46 @@
+name: "Release Build"
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: The version to tag the release with, e.g., 1.2.0, 1.2.1-alpha.1
+        required: true
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/[email protected]
+        with:
+          fetch-depth: 0
+      - id: setup-java-17
+        name: Setup Java 17
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 17
+      - uses: burrunan/[email protected]
+        with:
+          remote-build-cache-proxy-enabled: false
+          arguments: build --stacktrace
+          properties: |
+            release.version=${{ github.event.inputs.version }}
+            org.gradle.java.installations.paths=${{ steps.setup-java-17.outputs.path }}
+      - uses: burrunan/[email protected]
+        with:
+          remote-build-cache-proxy-enabled: false
+          arguments: final closeAndReleaseSonatypeStagingRepository --stacktrace
+          properties: |
+            release.version=${{ github.event.inputs.version }}
+            org.gradle.java.installations.paths=${{ steps.setup-java-17.outputs.path }}
+        env:
+          SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
+          SONATYPE_KEY: ${{ secrets.SONATYPE_KEY }}
+          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+          GPG_PASSWORD: ${{ secrets.GPG_PASSWORD }}
+      - run: |
+          gh release create ${{ github.events.inputs.version }} \
+            --title ${{ github.events.inputs.version }}-alpha \
+            --notes "Java Bindings for [OTLP ${{ github.events.inputs.version }}](https://github.com/open-telemetry/opentelemetry-proto/releases/tag/${{ github.events.inputs.version }})"

build.gradle.kts

@@ -1,17 +1,29 @@
 import com.google.protobuf.gradle.*
 import de.undercouch.gradle.tasks.download.Download
 import de.undercouch.gradle.tasks.download.Verify
+import nebula.plugin.release.git.opinion.Strategies
 import java.time.Duration
 
 plugins {
   id("com.google.protobuf")
   id("de.undercouch.download")
   id("io.github.gradle-nexus.publish-plugin")
+  id("nebula.release")
 
   id("otel.java-conventions")
   id("otel.publish-conventions")
 }
 
+release {
+  defaultVersionStrategy = Strategies.getSNAPSHOT()
+}
+
+tasks {
+  named("release") {
+    mustRunAfter("snapshotSetup", "finalSetup")
+  }
+}
+
 description = "Java Bindings for the OpenTelemetry Protocol (OTLP)"
 
 val grpcVersion = "1.41.0"
@@ -29,9 +41,9 @@ dependencies {
   // see: https://github.com/grpc/grpc-java/issues/3633
   compileOnly("javax.annotation:javax.annotation-api:1.3.2")
 
-  compileOnly("io.grpc:grpc-api:${grpcVersion}")
-  compileOnly("io.grpc:grpc-protobuf:${grpcVersion}")
-  compileOnly("io.grpc:grpc-stub:${grpcVersion}")
+  compileOnly("io.grpc:grpc-api:$grpcVersion")
+  compileOnly("io.grpc:grpc-protobuf:$grpcVersion")
+  compileOnly("io.grpc:grpc-stub:$grpcVersion")
 }
 
 protobuf {
@@ -53,7 +65,7 @@ protobuf {
   }
 }
 
-val protoVersion = version.toString().removeSuffix("-alpha")
+val protoVersion = version.toString().removeSuffix("-SNAPSHOT").removeSuffix("-alpha")
 // To generate checksum, download the file and run "shasum -a 256 ~/path/to/vfoo.zip"
 val protoChecksum = "5e4131064e9471eb09294374db0d55028fdb73898b08aa07a835d17d61e5f017"
 val protoArchive = file("$buildDir/archives/opentelemetry-proto-$protoVersion.zip")

buildSrc/src/main/kotlin/otel.publish-conventions.gradle.kts

@@ -6,11 +6,15 @@ plugins {
 publishing {
   publications {
     register<MavenPublication>("mavenPublication") {
+      val publication = this
       groupId = "io.opentelemetry.proto"
       afterEvaluate {
         // not available until evaluated.
         artifactId = base.archivesName.get()
         pom.description.set(project.description)
+        val versionParts = publication.version.split('-').toMutableList()
+        versionParts[0] += "-alpha"
+        publication.version = versionParts.joinToString("-")
       }
 
       plugins.withId("java-platform") {
@@ -55,6 +59,14 @@ publishing {
   }
 }
 
+afterEvaluate {
+  val publishToSonatype by tasks.getting
+  val release by rootProject.tasks.existing
+  release.configure {
+    finalizedBy(publishToSonatype)
+  }
+}
+
 if (System.getenv("CI") != null) {
   signing {
     useInMemoryPgpKeys(System.getenv("GPG_PRIVATE_KEY"), System.getenv("GPG_PASSWORD"))

gradle.properties

@@ -1,5 +1,3 @@
-version = 0.9.0-alpha
-
 org.gradle.parallel=true
 org.gradle.caching=true
 

settings.gradle.kts

@@ -3,6 +3,7 @@ pluginManagement {
     id("com.google.protobuf") version "0.8.17"
     id("de.undercouch.download") version "4.1.2"
     id("io.github.gradle-nexus.publish-plugin") version "1.1.0"
+    id("nebula.release") version "16.0.0"
   }
 }