.travis.yml

# NB: don't set `language: haskell` here

# The following enables several GHC versions to be tested; often it's enough to test only against the last release in a major GHC version. Feel free to omit lines listings versions you don't need/want testing for.
env:
 - GHCVER=8.0.2
 - GHCVER=8.2.2
 - GHCVER=8.4.4
 - GHCVER=8.6.5
 - GHCVER=8.8.3
 - GHCVER=8.10.1

# Note: the distinction between `before_install` and `install` is not important.
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-3.2 ghc-$GHCVER libblas-dev liblapack-dev
 - export PATH=/opt/cabal/bin:/opt/ghc/$GHCVER/bin:$PATH

install:
 - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]"
 - travis_retry cabal-3.2 update

notifications:
  email: false

# 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:
 - cabal-3.2 configure --enable-tests
 - cabal-3.2 build all
 - cabal-3.2 test --test-show-details=direct -j1