before_script:
  # Report the versions of varioius software, to make diagnosing problems
  # easier:
  - ghc --version
  - cabal --version
  - capnp --version
  - stylish-haskell --version
  - hlint --version
  # Update the hackage databse:
  - cabal update
test:alltests:
  image: zenhack/haskell-capnp-ci
  variables:
    CXX_CALCULATOR_CLIENT: /usr/local/bin/c++-calculator-client
    CXX_CALCULATOR_SERVER: /usr/local/bin/c++-calculator-server
  script:
    # First build the code generator plugin.
    - cabal new-build capnpc-haskell
    # Then, regenerate the schema modules, and make sure they're in-sync
    # with what was committed. This is also necessary to generate the
    # Schema modules used by the test suite, which are not committed.
    - ./scripts/regen.sh
    - git diff --exit-code
    # Now build everything else (incl. examples):
    - cabal new-build all
    # ...run the tests. We use new-run so we can pass rts options
    # to the test binary -- these tell it to parallelize the tests.
    - cabal new-run test:tests -- +RTS -N
    # Linting:
    - ./scripts/hlint.sh
    # Run stylish-haskell, and fail if it changes anything:
    - ./scripts/format.sh
    - git diff --exit-code