feat: added gradle publishing workflow

.github/workflows/publishing.yml

@@ -0,0 +1,32 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+# GitHub recommends pinning actions to a commit SHA.
+# To get a newer version, you will need to update the SHA.
+# You can also reference a tag or branch, but the action may change without warning.
+
+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@v3
+        with:
+          java-version: "17"
+          distribution: "temurin"
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Publish package
+        run: ./gradlew publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

lib/build.gradle.kts

@@ -1,8 +1,27 @@
 plugins {
   `java-library`
+  `maven-publish`
   id("com.diffplug.spotless") version "6.20.0"
 }
 
+publishing {
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/JarKz/TBot")
+            credentials {
+                username = project.findProperty("gpr.user") as String? ?: System.getenv("GITHUB_ACTOR")
+                password = project.findProperty("gpr.key") as String? ?: System.getenv("GITHUB_TOKEN")
+            }
+        }
+    }
+    publications {
+        register<MavenPublication>("gpr") {
+            from(components["java"])
+        }
+    }
+}
+
 repositories { mavenCentral() }
 
 dependencies {