Merge branch 'pipeline-caching' into 'main'

Pipeline caching

See merge request !9

.gitlab-ci.yml

@@ -5,9 +5,6 @@ stages:
   - trigger
 
 build-job:
-  only: 
-    refs:
-      - main
   stage: build
   script:
     - stack build
@@ -17,10 +14,14 @@ build-job:
   artifacts:
     paths:
       - dist
+  variables:
+    STACK_ROOT: "${CI_PROJECT_DIR}/.stack-root"
   cache:
-    key: '$CI_JOB_NAME-$CI_COMMIT_REF_SLUG'
+    key: '$CI_JOB_NAME-stack-cache'
     paths:
-      - dist
+    - .stack-work/
+    - .stack-root/
+
 
 trigger-mapservice-pipeline:
   only: