---
machine:
  pre:
    # https://github.com/commercialhaskell/stack/issues/1658
    - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.6 20
    - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.6 20
    - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 10
    - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9 10
dependencies:
  cache_directories:
    - "~/.stack"
  pre:
    - wget https://github.com/commercialhaskell/stack/releases/download/v1.6.1/stack-1.6.1-linux-x86_64.tar.gz -O /tmp/stack.tar.gz
    - tar xvzOf /tmp/stack.tar.gz stack-1.6.1-linux-x86_64/stack > /tmp/stack
    - chmod +x /tmp/stack && sudo mv /tmp/stack /usr/bin/stack
  override:
    - stack setup
    - stack build
      --pedantic
      --test --no-run-tests
      --flag yesod-auth-oauth2:example

test:
  override:
    - stack test

    # Check compilation with nightly. If this proves problematic, add || true
    # after to not fail the build.
    - stack setup --resolver nightly
    - stack build --resolver nightly --pedantic --test --no-run-tests