Consolidate GHA workflows into one

.github/workflows/nebula.yml

@@ -0,0 +1,99 @@
+name: Nebula Build
+on:
+  push:
+    branches:
+      - '*'
+    tags:
+      - v*.*.*
+      - v*.*.*-rc.*
+  pull_request:
+
+jobs:
+  validation:
+    name: "Gradle Wrapper Validation"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1
+  buildmultijdk:
+    if: (!startsWith(github.ref, 'refs/tags/v'))
+    needs: validation
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # test against latest update of some major Java version(s), as well as specific LTS version(s)
+        java: [ 8, 11 ]
+    name: Gradle Build without Publish
+    steps:
+      - uses: actions/checkout@v1
+      - name: Setup jdk
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.java }}
+      - uses: actions/cache@v1
+        id: gradle-cache
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/gradle/dependency-locks/*.lockfile') }}
+          restore-keys: |
+            - ${{ runner.os }}-gradle-
+      - uses: actions/cache@v1
+        id: gradle-wrapper-cache
+        with:
+          path: ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradlewrapper-${{ hashFiles('gradle/wrapper/*') }}
+          restore-keys: |
+            - ${{ runner.os }}-gradlewrapper-
+      - name: Gradle build
+        run: ./gradlew --info --stacktrace build
+      - name: Post-success actions
+        if: success()
+        run: ./gradlew jacocoTestReport coveralls
+        env:
+          CI_NAME: github_actions
+          CI_BUILD_NUMBER: ${{ github.sha }}
+          CI_BUILD_URL: 'https://github.com/${{ github.repository }}'
+          CI_BRANCH: ${{ github.ref }}
+          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  publish:
+    if: startsWith(github.ref, 'refs/tags/v')
+    needs: validation
+    runs-on: ubuntu-latest
+    name: Gradle Build and Publish
+    env:
+      NETFLIX_OSS_SONATYPE_USERNAME: ${{ secrets.ORG_SONATYPE_USERNAME }}
+      NETFLIX_OSS_SONATYPE_PASSWORD: ${{ secrets.ORG_SONATYPE_PASSWORD }}
+      NETFLIX_OSS_SIGNING_KEY: ${{ secrets.ORG_SIGNING_KEY }}
+      NETFLIX_OSS_SIGNING_PASSWORD: ${{ secrets.ORG_SIGNING_PASSWORD }}
+      NETFLIX_OSS_REPO_USERNAME: ${{ secrets.ORG_NETFLIXOSS_USERNAME }}
+      NETFLIX_OSS_REPO_PASSWORD: ${{ secrets.ORG_NETFLIXOSS_PASSWORD }}
+    steps:
+      - uses: actions/checkout@v1
+      - name: Setup jdk 8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - uses: actions/cache@v1
+        id: gradle-cache
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/gradle/dependency-locks/*.lockfile') }}
+          restore-keys: |
+            - ${{ runner.os }}-gradle-
+      - uses: actions/cache@v1
+        id: gradle-wrapper-cache
+        with:
+          path: ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradlewrapper-${{ hashFiles('gradle/wrapper/*') }}
+          restore-keys: |
+            - ${{ runner.os }}-gradlewrapper-
+      - name: Publish candidate
+        if: |
+          startsWith(github.ref, 'refs/tags/v') &&
+          contains(github.ref, '-rc.')
+        run: ./gradlew --info --stacktrace -Prelease.useLastTag=true candidate
+      - name: Publish release
+        if: |
+          startsWith(github.ref, 'refs/tags/v') &&
+          (!contains(github.ref, '-rc.'))
+        run: ./gradlew --info --stacktrace -Dgradle.publish.key=${{ secrets.gradlePublishKey }} -Dgradle.publish.secret=${{ secrets.gradlePublishSecret }} -Prelease.useLastTag=true final