Enhance release workflow: enable publishing to GitHub Packages and integrate versioning from tags

build.gradle.kts

@@ -2,15 +2,15 @@ plugins {
     id("java")
     id("java-library")
     id("application")
+    id("maven-publish")
 }
 
 tasks.named<JavaExec>("run") {
     jvmArgs("-Ddev.jakub.terminal.ansi=true", "-Dfile.encoding=UTF-8")
 }
 
-
 group = "dev.jakub.terminal"
-version = "1.0-SNAPSHOT"
+version = System.getenv("RELEASE_VERSION") ?: "1.0-SNAPSHOT"
 
 java {
     sourceCompatibility = JavaVersion.VERSION_21
@@ -29,4 +29,25 @@ dependencies {
 
 tasks.test {
     useJUnitPlatform()
+}
+
+publishing {
+    publications {
+        create<MavenPublication>("maven") {
+            groupId = project.group.toString()
+            artifactId = "terminal-ui"
+            version = project.version.toString()
+            from(components["java"])
+        }
+    }
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/jakubbbdev/terminal-ui")
+            credentials {
+                username = System.getenv("GITHUB_ACTOR") ?: project.findProperty("gpr.user")?.toString()
+                password = System.getenv("GITHUB_TOKEN") ?: project.findProperty("gpr.token")?.toString()
+            }
+        }
+    }
 }