machine:
  xcode:
    version: 8.0
  environment:
    MODE: --flavour=quickest --integer-simple

dependencies:
  override:
    - brew update
    - brew install ghc cabal-install python3
    - brew link ghc cabal-install python3
    - cabal update
    - cabal install alex 'happy >= 1.19.4' mtl shake QuickCheck
  cache_directories:
    - ~/.cabal
    - ~/.ghc
    - /usr/local/Cellar

compile:
  override:
    # Fetch GHC sources into ./ghc
    - git --version
    - git config --global url."git://github.com/ghc/packages-".insteadOf git://github.com/ghc/packages/
    - git clone --depth 1 --recursive git://github.com/ghc/ghc

    # GHC comes with an older version of Hadrian, so we delete it
    - rm -rf ghc/hadrian/.git
    # move hadrian's .git into ./ghc/hadrian and perform a hard reset in order to regenerate Hadrian files
    - mv .git ghc/hadrian
    # NOTE: we must write them in the same line because each line
    # in CircleCI is a separate process, thus you can't "cd" for the other lines
    - cd ghc/hadrian; git reset --hard HEAD
    - cd ghc; ./boot && PATH=~/.cabal/bin:$PATH ./configure

    # XXX: export PATH doesn't work well either, so we use inline env
    # Self test
    - cd ghc; PATH=~/.cabal/bin:$PATH hadrian/build.sh selftest

    # Build GHC
    - cd ghc; PATH=~/.cabal/bin:$PATH hadrian/build.sh -j $MODE --no-progress --progress-colour=never --profile=-

test:
  override:
    # Test GHC binary
    - ghc/_build/stage1/bin/ghc -e 1+2