added publish task

build.gradle

@@ -186,6 +186,28 @@ jastadd {
     extraJastAddOptions = ['--List=JastAddList'] // '--incremental=param'
 }
 
+// publish gitlab project
+publishing {
+    publications {
+        maven(MavenPublication) {
+            from components.java
+        }
+    }
+    repositories {
+        maven {
+            url "https://git-st.inf.tu-dresden.de/api/v4/projects/$System.env.CI_PROJECT_ID/packages/maven"
+            credentials(HttpHeaderCredentials) {
+                name = 'Job-Token'
+                value = System.getenv('CI_JOB_TOKEN')
+            }
+            authentication {
+                header(HttpHeaderAuthentication)
+            }
+        }
+
+    }
+}
+
 // Workflow configuration for phases
 relastToJastAdd.dependsOn ecoreToRelast
 generateAst.dependsOn relastToJastAdd