helpers/Dojo/SharedAssignmentHelper.ts

@@ -16,8 +16,10 @@ class SharedAssignmentHelper {
                 immutable: {
                     elements: {
                         properties        : {
+                            path: { type: 'string' }
+                        },
+                        optionalProperties: {
                             description: { type: 'string' },
-                            path       : { type: 'string' },
                             isDirectory: { type: 'boolean' }
                         }
                     }

types/Dojo/AssignmentCheckerError.ts

+enum ExerciseCheckerError {
+    DOCKER_DAEMON_NOT_RUNNING       = 200,
+    REQUIRED_FILES_MISSING          = 201,
+    ASSIGNMENT_FILE_SCHEMA_ERROR    = 202,
+    IMMUTABLE_PATH_NOT_FOUND        = 203,
+    IMMUTABLE_PATH_IS_DIRECTORY     = 204,
+    IMMUTABLE_PATH_IS_NOT_DIRECTORY = 205,
+    COMPOSE_FILE_YAML_ERROR         = 206,
+    COMPOSE_FILE_SCHEMA_ERROR       = 207,
+    COMPOSE_FILE_CONTAINER_MISSING  = 208,
+    COMPOSE_FILE_VOLUME_MISSING     = 209,
+    DOCKERFILE_NOT_FOUND            = 210,
+    COMPOSE_RUN_SUCCESSFULLY        = 211, // Yes, this is an error
+}
+
+
+/**
+ * Codes that are unusable for historic reasons:
+ * None
+ */
+
+
+export default ExerciseCheckerError;
\ No newline at end of file

types/Dojo/ImmutableFileDescriptor.ts

 interface ImmutableFileDescriptor {
-    description: string,
+    description?: string,
     path: string,
-    isDirectory: boolean,
+    isDirectory?: boolean,
 }