Build artifacts only in master

.gitlab-ci.yml

@@ -9,13 +9,20 @@ cache:
   paths:
     - .stack-root/
 
+test_branch:
+  script:
+    - stack --no-terminal --system-ghc --no-install-ghc --resolver lts-12.14 build --test --haddock --no-haddock-deps --bench --no-run-benchmarks
+  except:
+    - master
+
 test:
   script:
     - stack --no-terminal --system-ghc --no-install-ghc --resolver lts-12.14 build --copy-bins --test --haddock --no-haddock-deps --bench --no-run-benchmarks
     - cp -r ~/.local/bin/ copar-linux-binaries
+  only:
+    - master
   artifacts:
     name: "${CI_PROJECT_NAME}-linux-binaries"
     expire_in: 10 yrs
     paths:
         - copar-linux-binaries/
-