Add workflow action to publish artifacts

.github/workflows/pravega-build.yml

@@ -21,14 +21,48 @@ on:
       - main                   # On every push to the main branch.
   pull_request:                # On every pull request, regardless of source/target branch.
 
+# Define a few constants that are shared across all the jobs (copied from Pravega workload)
 env:
-  BUILD_CACHE_PATH: ./*
+  GLOBAL_CACHE_PATH: |
+    ~/.gradle
+    ~/.m2
+  GLOBAL_CACHE_KEY: gradle-m2-java-11
+  GLOBAL_CACHE_RESTORE_KEYS: |
+    gradle-m2-java-
+    gradle-m2
+  # We cache the class files, resources and build output. This is generated on the build job and reused in dependent jobs.
+  # If there are subsequent builds this includes test execution.
+  BUILD_CACHE_PATH: |
+    .gradle
+    ./bin
+    **/bin
+    **/build
 
 jobs:
   build:
     name: Build
     runs-on: ubuntu-latest
     steps:
+      - name: Build Information
+        run: echo Building a '${{ github.event_name }}' for target '${{ github.ref }}'.
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Gradle & Maven Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.GLOBAL_CACHE_PATH}}
+          key: ${{env.GLOBAL_CACHE_KEY}}
+          restore-keys: ${{env.GLOBAL_CACHE_RESTORE_KEYS}}
+      - name: Build Output Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.BUILD_CACHE_PATH}}
+          key: ${{github.ref}}-${{github.run_id}}-${{github.job}}
+          restore-keys: |
+            ${{github.ref}}
+      - name: Clean
+        if: ${{ startsWith(github.ref, 'refs/heads/') }}
+        run: ./gradlew clean ${{env.GRADLE_OPTS}}
       - uses: actions/checkout@v2
       - name: Set up JDK 11
         uses: actions/setup-java@v1
@@ -47,6 +81,22 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Gradle & Maven Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.GLOBAL_CACHE_PATH}}
+          key: ${{env.GLOBAL_CACHE_KEY}}
+          restore-keys: ${{env.GLOBAL_CACHE_RESTORE_KEYS}}
+      - name: Build Output Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.BUILD_CACHE_PATH}}
+          key: ${{github.ref}}-${{github.run_id}}-${{github.job}}
+          restore-keys: |
+            ${{github.ref}}-${{github.run_id}}
+            ${{github.ref}}
       - name: Build Output Cache
         uses: actions/[email protected]
         with:
@@ -62,3 +112,35 @@ jobs:
     steps:
       - name: Check Build Status
         run: echo build, unit and integration tests successful.
+
+  snapshot:
+    name: Publish snapshot packages
+    needs: [build_and_test_complete]
+    # Only run this on PUSH (no pull requests) and only on the main branch and (future) release branches.
+    # if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/r0.') || startsWith(github.ref, 'refs/heads/r1.')) }}
+    # Temp comment out above 'if' statement so we can publish the artifacts and verify it works on the 'push' to the forked branch
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Gradle & Maven Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.GLOBAL_CACHE_PATH}}
+          key: ${{env.GLOBAL_CACHE_KEY}}
+          restore-keys: ${{env.GLOBAL_CACHE_RESTORE_KEYS}}
+      - name: Build Output Cache
+        uses: actions/[email protected]
+        with:
+          path: ${{env.BUILD_CACHE_PATH}}
+          key: ${{github.ref}}-${{github.run_id}}-${{github.job}}
+          restore-keys: |
+            ${{github.ref}}-${{github.run_id}}
+            ${{github.ref}}
+      - name: Assemble
+        run: ./gradlew assemble --parallel ${{env.GRADLE_OPTS}}
+      - name: Publish to GitHub Packages
+        run: ./gradlew publish -PpublishUrl=https://maven.pkg.github.com/${{github.repository}} -PpublishUsername=${{github.actor}} -PpublishPassword=${{secrets.GITHUB_TOKEN}} ${{env.GRADLE_OPTS}}
+