.travis.yml

---
language: nix
env:
  global:
    - STORE=$HOME/nix-store
    - #NIXPKGS=https://github.com/NixOS/nixpkgs-channels/archive/6a3f5bcb061e1822f50e299f5616a0731636e4e7.tar.gz
cache:
  directories:
    - $STORE
before_install:
  - sudo rm -f /etc/boto.cfg # see https://github.com/travis-ci/travis-ci/issues/7940 and https://api.travis-ci.org/v3/job/508575291/log.txt
  - sudo mkdir -p /etc/nix
  - echo "binary-caches = https://cache.nixos.org/ file://$STORE" | sudo tee -a /etc/nix/nix.conf > /dev/null
  - echo 'require-sigs = false' | sudo tee -a /etc/nix/nix.conf > /dev/null
before_cache:
  - mkdir -p $STORE
  - nix copy --to file://$STORE -f default.nix buildInputs
install:
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.pip --command "echo 'built pip'"
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.python --command "echo 'built python'"
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.numpy --command "echo 'built numpy'"
  - #travis_wait nix-shell -I $NIXPKGS --pure --no-build-output -p python36Packages.scipy --command "echo 'built scipy'"
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.matplotlib --command "echo 'built matplotlib'"
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.tkinter --command "echo 'built tkinter'"
  - #nix-shell -I $NIXPKGS --pure -p python36Packages.pandas --command "echo 'built pandas'"
  - nix-shell --pure --command "echo 'run nix-shell and exit'"
script:
  - nix-shell --pure --command "py.test"