# https://github.com/travis-ci/travis-ci/issues/9061
sudo: required
dist: xenial
language: nix
matrix:
  # Report build failure/success before allowed failures complete
  fast_finish: true
  allow_failures:
    - env: EMACS_CI=emacs-snapshot
env:
  - EMACS_CI=emacs-26-1
  - EMACS_CI=emacs-26-3
  - EMACS_CI=emacs-27-1
  - EMACS_CI=emacs-snapshot
install:
  # Install Emacs
  - bash <(curl https://raw.githubusercontent.com/purcell/nix-emacs-ci/master/travis-install)
  # Install cask
  - curl -fsSL https://raw.githubusercontent.com/cask/cask/master/go | python
  # We go the route of installing Python3.6 like this because the
  # python3 apt package on Xenial maxes out at 3.5 and for some reason
  # installing setuptools using the python3-pip apt package installs a
  # setuptools that uses f-strings, a feature in 3.6.
  #
  # One option would have been to update to Bionic, but apparently we
  # can't since we use language: nix, see
  # https://travis-ci.community/t/for-dist-bionic-xenial-vm-is-used-instead-with-language-rust/4487/3
  - sudo add-apt-repository ppa:deadsnakes/ppa -y
  - sudo apt-get update
  - sudo apt-get install -y python3.6
  - wget https://bootstrap.pypa.io/get-pip.py
  - sudo python3.6 get-pip.py
  - sudo python3.6 -m pip install --upgrade setuptools pip
  # --ignore-installed six since jupyter tries to upgrade it, but it can't be
  # upgraded since it is a distutils package
  - sudo python3.6 -m pip install --ignore-installed six jupyter
  # Install the kernelspec using the right python. Jupyter installs a default
  # python kernelspec that uses "python" for the command in
  # /usr/local/share/jupyter. This installs one with an absolute path using our
  # python3
  - sudo python3.6 -m ipykernel.kernelspec
  # Install additional packages needed by the tests
  - sudo apt-get install pandoc
before_script:
  # Ensure Jupyter runtime dir can be written to
  - mkdir -p $(jupyter --runtime-dir)
  - jupyter --runtime-dir
  - jupyter --paths
  - jupyter --version
  - jupyter notebook --version
  - jupyter kernelspec list
script:
  - export PATH=$HOME/.cask/bin:$PATH
  - cd $TRAVIS_BUILD_DIR
  - make dev
  - make compile
  - make test