.travis.yml

sudo: required

services:
 - postgresql

before_script:
 - psql -c 'create database test;' -U postgres

env:
 - CABALVER=1.24 GHCVER=8.0.2
 - CABALVER=2.0 GHCVER=8.2.2
 - CABALVER=2.2 GHCVER=8.4.3
 - CABALVER=2.4 GHCVER=8.6.4

before_install:
 - travis_retry sudo add-apt-repository -y ppa:hvr/ghc
 - travis_retry sudo apt-get update
 - travis_retry sudo apt-get install cabal-install-$CABALVER ghc-$GHCVER
 - 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

script:
 - cabal configure --enable-tests --enable-benchmarks -v2
 - cabal build
 - cabal test
 - cabal check
 - cabal sdist
 - SRC_TGZ=$(cabal info . | awk '{print $2;exit}').tar.gz &&
   (cd dist && cabal install --force-reinstalls "$SRC_TGZ")