Allow releasing to github packages

.github/workflows/release.yaml

@@ -0,0 +1,31 @@
+name: Publish package to GitHub Packages
+on:
+  release:
+    types: [ created ]
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Set version
+        id: version
+        run: |
+          DATE=$(date +'%Y%m%d')
+          HASH=$(git rev-parse --short HEAD)
+          echo "VERSION=${DATE}-${HASH}" >> $GITHUB_ENV
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Publish package
+        run: ./gradlew publish -Pversion=$VERSION
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

build.gradle.kts

@@ -25,5 +25,16 @@ configure(subprojects) {
         from(components["java"])
       }
     }
+
+    repositories {
+      maven {
+        name = "GitHubPackages"
+        setUrl("https://maven.pkg.github.com/FAForever/faf-java-commons")
+        credentials {
+          username = System.getenv("GITHUB_ACTOR")
+          password = System.getenv("GITHUB_TOKEN")
+        }
+      }
+    }
   }
 }