Added Gitlab CI pipeline.

.gitlab-ci.yml

@@ -0,0 +1,41 @@
+stages:
+    - build
+    - publish
+
+variables:
+    JAR_PATH: "build/libs/Snowbrawl-2.jar"
+
+build:
+    stage: build
+    tags:
+        - docker
+    image: openjdk:17-jdk
+    script:
+        - chmod +x gradlew
+        - ./gradlew build
+    artifacts:
+        name: Snowbrawl-$CI_COMMIT_REF_SLUG-$CI_JOB_NAME
+        paths:
+            - $JAR_PATH
+        expire_in: 1 day
+
+publish:
+    stage: publish
+    tags:
+        - docker
+    image: registry.gitlab.com/gitlab-org/release-cli:latest
+    rules:
+        - if: $CI_COMMIT_TAG
+    before_script:
+        - apk add --no-cache curl
+    script:
+        - curl --header "JOB-TOKEN:$CI_JOB_TOKEN" --upload-file $JAR_PATH "$CI_API_V4_URL/projects/$CI_PROJECT_ID/packages/generic/release/$CI_COMMIT_TAG/Snowbrawl_$CI_COMMIT_TAG.jar"
+    release:
+        name: "Snowbrawl $CI_COMMIT_TAG"
+        description: "Automatic Snowbrawl release from tag $CI_COMMIT_TAG."
+        tag_name: "$CI_COMMIT_TAG"
+        ref: "$CI_COMMIT_TAG"
+        assets:
+            links:
+                - name: "Snowbrawl_$CI_COMMIT_TAG.jar"
+                  url: "$CI_API_V4_URL/projects/$CI_PROJECT_ID/packages/generic/release/$CI_COMMIT_TAG/Snowbrawl_$CI_COMMIT_TAG.jar"