add github action to publish releases

.github/workflows/publish-release.yaml

@@ -0,0 +1,55 @@
+name: Publish Release
+
+on:
+  push:
+    branches:
+      - 'wip-[0-9]+.[0-9]+'
+      - '[0-9]+.[0-9]+'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set Build Number Environment Variable
+        env:
+          BUILD_NUMBER_OFFSET: 26
+        run: |
+          echo "BUILD_NUMBER=$((${{ github.run_number }}+$BUILD_NUMBER_OFFSET))" >> $GITHUB_ENV
+
+      - name: Install gpg secret key
+        run: |
+          cat <(echo -e "${{ secrets.GPG_SECRET_KEY }}") | gpg2 --batch --import
+          gpg2 --list-secret-keys --keyid-format LONG
+
+      - uses: actions/checkout@v2
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v2
+        with:
+          # java 11 does not support expected jvm arguments
+          java-version: 8
+          distribution: 'zulu'
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build and Test
+        run: ./gradlew clean check
+
+      - name: Publish WIP to Github Packages
+        if: ${{ contains( github.ref, 'wip-' ) }}
+        env:
+          GRADLE_OPTS: -Dbuild.number=$BUILD_NUMBER -Dbuild.vcs.number=${{ github.sha }} -Dbuild.vcs.branch=${{ github.ref }}
+          GPR_USERNAME: ${{ github.actor }}
+          GPR_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: ./gradlew publishAllPublicationsToGitHubPackagesRepository -Psigning.gnupg.keyName=${{ secrets.GPG_SECRET_KEY_ID }} -Psigning.gnupg.passphrase=${{ secrets.GPG_SECRET_KEY_PASSWORD }}
+
+      - name: Publish Release to Maven Central
+        if: ${{ !contains( github.ref, 'wip-' ) }}
+        env:
+          GRADLE_OPTS: -Dbuild.number=$BUILD_NUMBER -Dbuild.vcs.number=${{ github.sha }} -Dbuild.vcs.branch=${{ github.ref }}
+          MCR_USERNAME: ${{ secrets.MCR_USERNAME }}
+          MCR_PASSWORD: ${{ secrets.MCR_PASSWORD }}
+        run: ./gradlew publishToSonatype closeAndReleaseSonatypeStagingRepository -Psigning.gnupg.keyName=${{ secrets.GPG_SECRET_KEY_ID }} -Psigning.gnupg.passphrase=${{ secrets.GPG_SECRET_KEY_PASSWORD }}