Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -1,19 +1,38 @@
-lint-job:
-  stage: .pre
+stages:
+  - lint
+  - build
+  - test
+
+workflow:
+  rules:
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+
+lint:
+  stage: lint
   image: rust:latest
   script:
     - rustup component add rustfmt clippy
     - cargo fmt --check
     - cargo clippy -- -D warnings
+  artifacts:
+    paths:
+      - "target/"
 
-build-job:
+build:
   stage: build
   image: rust:latest
   script:
     - cargo build --release
+  artifacts:
+    paths:
+      - "target/"
 
-test-job:
+test:
   stage: test
   image: rust:latest
   script:
     - cargo test --release
+  artifacts:
+    paths:
+      - "target/"