Create gradle-publish.yml

add gradle publish workflow

.github/workflows/gradle-publish.yml

@@ -0,0 +1,37 @@
+# This workflow will build a package using Gradle and then publish it to GitHub packages when a release is created
+# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#Publishing-using-gradle
+
+name: Gradle Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 16
+      uses: actions/setup-java@v2
+      with:
+        java-version: '16'
+        distribution: 'adopt'
+        server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
+        settings-path: ${{ github.workspace }} # location for the settings.xml file
+
+    - name: Build with Gradle
+      run: gradle build
+
+    # The USERNAME and TOKEN need to correspond to the credentials environment variables used in
+    # the publishing section of your build.gradle
+    - name: Publish to GitHub Packages
+      run: gradle publish
+      env:
+        USERNAME: ${{ github.actor }}
+        TOKEN: ${{ secrets.GITHUB_TOKEN }}