.travis.yml

language: c
sudo: false
matrix:
  include:
    - 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=8.0.1
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.1], sources: [hvr-ghc]}}
    - env: CABALVER=1.24 GHCVER=8.2.1
      addons: {apt: {packages: [cabal-install-1.24,ghc-8.2.1], sources: [hvr-ghc]}}
    - env: CABALVER=2.2 GHCVER=8.4.2
      addons: {apt: {packages: [cabal-install-2.2,ghc-8.4.2], sources: [hvr-ghc]}}
    - env: CABALVER=2.4 GHCVER=8.6.1
      addons: {apt: {packages: [cabal-install-2.4,ghc-8.6.1], 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
  - ghc --version
  - cabal --version

install:
  - travis_retry cabal update
  - sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config
  - cabal install --only-dependencies --enable-tests

script:
  - cabal configure --enable-tests
  - cabal build
  - cabal test
  - cabal check
  - cabal sdist

notifications:
  email: true