.travis.yml

# Following this approach for multi-GHC Travis CI:
# https://github.com/hvr/multi-ghc-travis

language: generic
sudo: false
notifications:
  email: false

matrix:
  fast_finish: true

  include:
    - env: CABALVER=1.16 GHCVER=7.6.3
      addons: {apt: {packages: [cabal-install-1.16,ghc-7.6.3], sources: [hvr-ghc]}}
    - env: CABALVER=1.18 GHCVER=7.8.4
      addons: {apt: {packages: [cabal-install-1.18,ghc-7.8.4], sources: [hvr-ghc]}}
    - env: CABALVER=1.22 GHCVER=7.10.1
      addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.1],sources: [hvr-ghc]}}
    - env: CABALVER=1.24 GHCVER=8.0.2
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.2],sources: [hvr-ghc]}}
    - env: CABALVER=head GHCVER=head
      addons: {apt: {packages: [cabal-install-head,ghc-head],  sources: [hvr-ghc]}}

  allow_failures:
    - env: CABALVER=head GHCVER=head

before_install:
  - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH

install:
  - cabal --version
  - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
  - travis_retry cabal update
  - cabal install --only-dependencies --enable-tests --enable-benchmarks

# Here starts the actual work to be performed for the package under
# test; any command which exits with a non-zero exit code causes the
# build to fail.
script:
  - if [ -f configure.ac ]; then autoreconf -i; fi

  # -v2 provides useful information for debugging
  - cabal configure --enable-tests --enable-benchmarks -v2

  # this builds all libraries and executables
  # (including tests/benchmarks)
  - cabal build

  # Run actual tests
  - cabal test

  # tests that a source-distribution can be generated
  - cabal sdist

  # check that the generated source-distribution can be built & installed
  - SRC_TGZ=$(cabal info . | awk '{print $2;exit}').tar.gz &&
    (cd dist && cabal install --force-reinstalls "$SRC_TGZ")

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