caching attempt

.gitlab-ci.yml

@@ -4,6 +4,15 @@ stages:
     - checking
     - deploy
 
+cache:
+    when: always
+    paths:
+        - .stack-work
+        - $HOME/.stack
+        - /root/.stack
+        - ../.stack
+        - .stack
+
 # Build package using dpkg-buildpackage
 run-build:
     stage: build
@@ -14,6 +23,7 @@ run-build:
         - echo 'Acquire::http { Proxy "http://rapperswil:3142"; };' > /etc/apt/apt.conf.d/02proxy
         - apt-get update -qy
         - apt-get install -y build-essential haskell-stack zlib1g-dev
+        - ln -s $(pwd)/.stack ~/.stack
         - stack upgrade
     script:
         - stack build --copy-bins --pedantic --ghc-options -Wno-name-shadowing