Add publish action

.github/workflows/publish.yml

@@ -0,0 +1,26 @@
+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@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+      - name: Validate Gradle wrapper
+        uses: gradle/wrapper-validation-action@e6e38bacfdf1a337459f332974bb2327a31aaf4b
+      - name: Publish package
+        uses: gradle/gradle-build-action@67421db6bd0bf253fb4bd25b31ebb98943c375e1
+        with:
+          arguments: publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

build.gradle.kts

@@ -31,8 +31,18 @@ tasks.withType<Test>().configureEach {
 }
 
 publishing {
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/doist/detekt-rules")
+            credentials {
+                username = System.getenv("GITHUB_ACTOR")
+                password = System.getenv("GITHUB_TOKEN")
+            }
+        }
+    }
     publications {
-        create<MavenPublication>("mavenJava") {
+        register<MavenPublication>("gpr") {
             from(components["java"])
         }
     }