.travis.yml

sudo: false

language: java
jdk: openjdk11

# Caching so the next build will be fast too.
cache:
  directories:
  - $HOME/.ghc
  - $HOME/.cabal
  - $HOME/.stack
  - $HOME/example/.gradle

matrix:
  include:
  - env: BUILD=stack ARGS=""
    compiler: ": #stack default"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack ARGS="--resolver lts-9"
    compiler: ": #stack 8.0.2"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack ARGS="--resolver lts-11"
    compiler: ": #stack 8.2.2"
    addons: {apt: {packages: [libgmp-dev]}}

  - env: BUILD=stack ARGS="--resolver lts-12"
    compiler: ": #stack 8.4.3"
    addons: {apt: {packages: [libgmp-dev]}}

  # Nightly builds are allowed to fail
  - env: BUILD=stack ARGS="--resolver nightly"
    compiler: ": #stack nightly (GHC 8.6)"
    addons: {apt: {packages: [libgmp-dev]}}

  # allow_failures:
  # - env: BUILD=stack ARGS="--resolver nightly"

before_install:
# Using compiler above sets CC to an invalid value, so unset it
- unset CC

# We want to always allow newer versions of packages when building on GHC HEAD
- CABALARGS=""
- if [ "x$GHCVER" = "xhead" ]; then CABALARGS=--allow-newer; fi

# Download and unpack the stack executable
- export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$HOME/.local/bin:/opt/alex/$ALEXVER/bin:/opt/happy/$HAPPYVER/bin:$HOME/.cabal/bin:$PATH
- mkdir -p ~/.local/bin
- |
  if [ `uname` = "Darwin" ]
  then
    travis_retry curl --insecure -L https://www.stackage.org/stack/osx-x86_64 | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin
  else
    travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'
  fi
  # Use the more reliable S3 mirror of Hackage
  mkdir -p $HOME/.cabal
  echo 'remote-repo: hackage.haskell.org:http://hackage.fpcomplete.com/' > $HOME/.cabal/config
  echo 'remote-repo-cache: $HOME/.cabal/packages' >> $HOME/.cabal/config
  if [ "$CABALVER" != "1.16" ]
  then
    echo 'jobs: $ncpus' >> $HOME/.cabal/config
  fi

install:
- echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
- if [ -f configure.ac ]; then autoreconf -i; fi
- |
  set -ex
  case "$BUILD" in
    stack)
      stack --no-terminal --install-ghc $ARGS test --bench --only-dependencies
      ;;
    cabal)
      cabal --version
      travis_retry cabal update
      # Get the list of packages from the stack.yaml file
      PACKAGES=$(stack --install-ghc query locals | grep '^ *path' | sed 's@^ *path:@@')
      cabal install --only-dependencies --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES
      ;;
  esac
  set +ex
script:
- |
  set -ex
  case "$BUILD" in
    stack)
      stack --no-terminal $ARGS test --bench --haddock --no-haddock-deps
      ;;
    cabal)
      cabal install --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS $PACKAGES
      ORIGDIR=$(pwd)
      for dir in $PACKAGES
      do
        cd $dir
        cabal check || [ "$CABALVER" == "1.16" ]
        cabal sdist
        PKGVER=$(cabal info . | awk '{print $2;exit}')
        SRC_TGZ=$PKGVER.tar.gz
        cd dist
        tar zxfv "$SRC_TGZ"
        cd "$PKGVER"
        cabal configure --enable-tests
        cabal build
        cd $ORIGDIR
      done
      ;;
  esac
  set +ex