.travis.yml

# env:
#   global:
#     - CACHIX_CACHE=martinbaillie
# sudo: yes
# git:
#   submodules: false
# jobs:
#   include:
#     # - stage: Build (linux)
#     - stage: build
#       language: nix
#       nix: 2.3.4
#     # NOTE: Moved Darwin to GitHub Actions.
#     # - stage: Build (darwin)
#     #   os: osx
#     #   # Fix OSX, see https://travis-ci.community/t/cannot-use-nix-support-on-osx/2927
#     #   language: generic
#     #   before_install:
#     #   - curl https://nixos.org/nix/install | sh
#     #   - source /Users/travis/.nix-profile/etc/profile.d/nix.sh
# script:
#   # Install Cachix.
#   - nix-env --quiet -iA cachix -f https://cachix.org/api/v1/install
#   - make dep
#   - cachix use "${CACHIX_CACHE}"
#   - nix path-info --all | grep -v '.drv$' > store-path-pre-build
#   # Run the CI.
#   - timeout 45m make ci
# after_script:
#   # Push resultant CI binaries to my Cachix cache.
#   - nix path-info --all | grep -v '.drv$' | cat - store-path-pre-build | sort | uniq -u | cachix push "${CACHIX_CACHE}"