Add gradle publish

.github/workflows/gradle-publish.yml

@@ -0,0 +1,36 @@
+# 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 8
+      uses: actions/setup-java@v2
+      with:
+        java-version: '8'
+        distribution: 'zulu'
+
+    - name: Build with Gradle
+      run: ./gradlew 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 }}
+        REPO: ${{ github.repository }}

build.gradle

@@ -29,6 +29,22 @@ allprojects {
         google()
     }
 	
+    apply plugin: "maven-publish"
+    publishing {
+        repositories {
+            maven {
+                name = "GitHubPackages"
+                url = uri("https://maven.pkg.github.com/$System.env.REPO")
+                credentials {
+                    username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
+                    password = project.findProperty("gpr.key") ?: System.getenv("TOKEN")
+                }
+            }
+        }
+        publications {
+            gpr(MavenPublication)
+        }
+    }
 }
 
 task clean(type: Delete) {