dist: xenial
language: haskell
cabal: "3.2"
cache:
  directories:
    - $HOME/.cabal
    - $HOME/.ghc
    - $TRAVIS_BUILD_DIR/testing/.cabal-sandbox
    - $HOME/.stack

# Make sure to update tested-with in source/BNFC.cabal when updating these:
ghc:
  - 7.10.3
  - 8.10.2
  - 8.8.4
  - 8.6.5
  - 8.4.4
  - 8.2.2
  - 8.0.2

env:
  - STACK=yes
  - CABAL=yes PACKAGEDIR="source"
  - CABAL=yes PACKAGEDIR="testing"

matrix:
  allow_failure:
    - env: CABAL=yes PACKAGEDIR="testing"
  exclude:
    # # ghc 8.10.2 not yet supported by stack
    # - ghc: 8.10.2
    #   env: STACK=yes

    # # haskell-src (dependencies of testing) not yet compatible with ghc 8.10.2
    # - ghc: 8.10.2
    #   env: CABAL=yes PACKAGEDIR="testing"

    # # haskell-src (dependencies of testing) throws off travis ghc 8.8
    # # since travis uses cabal 2.0 when ghc 8.8 wants cabal 3.0
    # - ghc: 8.8.4
    #   env: CABAL=yes PACKAGEDIR="testing"

    # HTF-0.14 does not build under 8.0 because of cabal version
    - ghc: 8.0.2
      env: CABAL=yes PACKAGEDIR="testing"

    # shelly-1.9 not available for ghc 7
    - ghc: 7.10.3
      env: CABAL=yes PACKAGEDIR="testing"

script:
  - if [ "$CABAL" = yes -a "$PACKAGEDIR" = source  ]; then cabal v1-configure --enable-tests && cabal v1-build && cabal v1-test; fi
  - if [ "$CABAL" = yes -a "$PACKAGEDIR" = testing ]; then source scripts/env && ./scripts/bootstrap; fi # && ./scripts/runtests; fi
  - if [ "$STACK" = yes ]; then stack --no-terminal --stack-yaml stack-$GHCVER.yaml build --fast --test --no-run-tests; fi

before_install:
  - export GHCVER=${GHCVER:-$TRAVIS_HASKELL_VERSION}
  - sudo apt-get update -qq
  - if [ "$CABAL" = yes ]; then
      export PATH=$HOME/.cabal/bin:$PATH &&
      sudo apt-get install alex happy;
    fi
  - if [ "$STACK" = yes ]; then
      mkdir -p $HOME/.local/bin &&
      export PATH=$HOME/.local/bin:$PATH &&
      travis_retry curl -L https://github.com/commercialhaskell/stack/releases/download/v2.3.3/stack-2.3.3-linux-x86_64.tar.gz | tar xz --wildcards --strip-components=1 -C $HOME/.local/bin '*/stack' &&
      stack config set system-ghc --global true;
    fi
  - if [ "$CABAL" = yes -a "$PACKAGEDIR" = testing ]; then sudo apt-get install openjdk-9-jdk-headless jflex antlr4 ocaml texlive-latex-base hlint; fi

install:
  - if [ "$CABAL" = yes ]; then cd $PACKAGEDIR && cabal v1-update && cabal v1-install --enable-tests --dependencies-only; fi
  - if [ "$STACK" = yes ]; then stack --no-terminal --stack-yaml stack-$GHCVER.yaml build --test --dependencies-only; fi

# Trash
#       cabal user-config update &&
# --installdir=$HOME/.cabal/bin