.travis.yml

# Use new container infrastructure to enable caching
sudo: false

# Choose a lightweight base image; we provide our own build tools.
language: generic

# GHC depends on GMP. You can add other dependencies here as well.
addons:
  apt:
    packages:
    - libgmp-dev

env:
- GHCVER=8.2.1

install:
 # Download and unpack the stack executable
 - mkdir -p ~/.local/bin
 - export PATH=$HOME/.local/bin:$PATH
 - travis_retry curl -L https://www.stackage.org/stack/linux-x86_64 | tar xz --wildcards --strip-components=1 -C ~/.local/bin '*/stack'

 # Get stackage-curator
 - wget https://s3.amazonaws.com/stackage-travis/stackage-curator/stackage-curator.bz2
 - bunzip2 stackage-curator.bz2
 - chmod +x stackage-curator
 - mv stackage-curator ~/.local/bin

 # Install GHC and cabal-install
 - stack setup $GHCVER

 # Update the index
 - travis_retry stack update

script:
 - stack --resolver ghc-$GHCVER exec stackage-curator check

cache:
  directories:
    - $HOME/.stack
    - $HOME/.stackage/curator/cache