sudo: enabled
language: generic

addons:
  apt:
    packages:
    - libgmp-dev
  postgresql: "9.6"

services:
- mongodb
- mysql
- redis-server

matrix:
  include:
  - env: BUILD=cabal GHCVER=8.2.2 CABALVER=2.0 HAPPYVER=1.19.5 ALEXVER=3.1.7
    compiler: ": #GHC 8.2.2"
    addons: {postgresql: "9.6", apt: {packages: [cabal-install-2.0,ghc-8.2.2,happy-1.19.5,alex-3.1.7], sources: [hvr-ghc]}}
  - env: BUILD=cabal GHCVER=8.4.4 CABALVER=2.0 HAPPYVER=1.19.5 ALEXVER=3.1.7
    compiler: ": #GHC 8.4.4"
    addons: {postgresql: "9.6", apt: {packages: [cabal-install-2.0,ghc-8.4.4,happy-1.19.5,alex-3.1.7], sources: [hvr-ghc]}}
  - env: BUILD=cabal GHCVER=8.6.4 CABALVER=2.0 HAPPYVER=1.19.5 ALEXVER=3.1.7
    compiler: ": #GHC 8.6.4"
    addons: {postgresql: "9.6", apt: {packages: [cabal-install-2.0,ghc-8.6.4,happy-1.19.5,alex-3.1.7], sources: [hvr-ghc]}}

  # Build with the newest GHC and cabal-install. This is an accepted failure,
  # see below.
  - env: BUILD=cabal GHCVER=head  CABALVER=head HAPPYVER=1.19.5 ALEXVER=3.1.7
    compiler: ": #GHC HEAD"
    addons: {apt: {packages: [cabal-install-head,ghc-head,happy-1.19.5,alex-3.1.7], sources: [hvr-ghc]}}

  - env: BUILD=stack ARGS="--resolver lts-9  --stack-yaml stack_lts-10.yaml"
  - env: BUILD=stack ARGS="--resolver lts-11 --stack-yaml stack_lts-12.yaml"
  - env: BUILD=stack ARGS="--resolver lts-12 --stack-yaml stack_lts-12.yaml"
  - env: BUILD=stack ARGS="--resolver lts-13"
  # Nightly builds are allowed to fail
  - env: BUILD=stack ARGS="--resolver nightly"
    compiler: ": #stack nightly"

  allow_failures:
  - env: BUILD=cabal GHCVER=head  CABALVER=head HAPPYVER=1.19.5 ALEXVER=3.1.7
  - 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)
      # Build the dependencies
      stack --no-terminal --install-ghc $ARGS test --bench --only-dependencies
      ;;
    cabal)
      cabal --version
      travis_retry cabal update 
      # travis_retry cabal update

      # Get the list of packages from the stack.yaml file. Note that
      # this will also implicitly run hpack as necessary to generate
      # the .cabal files needed by cabal-install.
      # PACKAGES=$(stack --install-ghc query locals | grep '^ *path' | sed 's@^ *path:@@')

      # cabal new-build does not require the list of packages because it is
      # specified in the cabal.project file
      cabal new-build all --only-dependencies --enable-tests --enable-benchmarks --force-reinstalls --ghc-options=-O0 --reorder-goals --max-backjumps=-1 $CABALARGS
      ;;
  esac
  set +ex


script: travis/run.sh

cache:
  directories:
  - $HOME/.stack
  - $HOME/.ghc
  - $HOME/.cabal
