Symlink /usr/local/bundle to project dir for caching

.gitlab-ci.yml

@@ -10,7 +10,9 @@ variables:
 
 # Build is in `before_script` because it's the same for both deployments
 before_script:
-  - mv usr-local-bundle /usr/local/bundle || true   # Move extracted cache to its original place
+  - mkdir -p usr-local-bundle
+  - rm -Rf /usr/local/bundle || true
+  - ln -sf "$(pwd)/usr-local-bundle" /usr/local/bundle
   - apk add npm
   - npm install
   - bundle install
@@ -18,7 +20,6 @@ before_script:
   - jekyll build -d public
   - ./scripts/purgecss.sh public
   - ./scripts/minifycssjs.sh public
-  - mv /usr/local/bundle usr-local-bundle || true   # Move cache to workdir so that GitLab will pick it up
 
 deploy-prod:
   stage: deploy