Linux bin artifacts

Publish the most recently built linux binaries as artifacts. This makes the wait shorter for users who just want to try copar quickly.

.gitlab-ci.yml

@@ -9,5 +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 --test --haddock --no-haddock-deps --bench --no-run-benchmarks
+  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/