language: python

dist: trusty
sudo: false

branches:
  except:
  - /^auto-backport-of-pr-\d*/

cache:
  pip: true
  directories:
    - $HOME/.ccache  # https://github.com/travis-ci/travis-ci/issues/5853
    - $HOME/.cache/matplotlib

addons:
  artifacts:
    paths:
    - result_images.tar.bz2
  apt:
    sources:
      - sourceline: ppa:jonathonf/ffmpeg-3
    packages:
      - cm-super
      - dvipng
      - ffmpeg
      - gdb
      - gir1.2-gtk-3.0
      - graphviz
      - inkscape
      - libcairo2
      - libgeos-dev
      - libgirepository-1.0.1
      - lmodern
      - otf-freefont
      - pgf
      - texlive-fonts-recommended
      - texlive-latex-base
      - texlive-latex-extra
      - texlive-latex-recommended
      - texlive-xetex
      - texlive-luatex

env:
  global:
    - ARTIFACTS_AWS_REGION=us-east-1
    - ARTIFACTS_BUCKET=matplotlib-test-results
    - secure: RgJI7BBL8aX5FTOQe7xiXqWHMxWokd6GNUWp1NUV2mRLXPb9dI0RXqZt3UJwKTAzf1z/OtlHDmEkBoTVK81E9iUxK5npwyyjhJ8yTJmwfQtQF2n51Q1Ww9p+XSLORrOzZc7kAo6Kw6FIXN1pfctgYq2bQkrwJPRx/oPR8f6hcbY=
    - secure: E7OCdqhZ+PlwJcn+Hd6ns9TDJgEUXiUNEI0wu7xjxB2vBRRIKtZMbuaZjd+iKDqCKuVOJKu0ClBUYxmgmpLicTwi34CfTUYt6D4uhrU+8hBBOn1iiK51cl/aBvlUUrqaRLVhukNEBGZcyqAjXSA/Qsnp2iELEmAfOUa92ZYo1sk=
    - secure: dfjNqGKzQG5bu3FnDNwLG8H/C4QoieFo4PfFmZPdM2RY7WIzukwKFNT6kiDfOrpwt+2bR7FhzjOGlDECGtlGOtYPN8XuXGjhcP4a4IfakdbDfF+D3NPIpf5VlE6776k0VpvcZBTMYJKNFIMc7QPkOwjvNJ2aXyfe3hBuGlKJzQU=
    # Variables controlling Python dependencies.
    - CYCLER=cycler
    - DATEUTIL=python-dateutil
    - NOSE=
    - NUMPY=numpy
    - PANDAS=
    - JUPYTER=
    - PYPARSING=pyparsing
    - PYTEST='pytest>=3.4'
    - PYTEST_COV=pytest-cov
    - PYTEST_PEP8=
    - SPHINX=sphinx
    # Variables controlling the build.
    - MPLLOCALFREETYPE=1
    # Variables controlling the test run.
    - DELETE_FONT_CACHE=
    - NO_AT_BRIDGE=1  # Necessary for GTK3 interactive test.
    # The number of processes is hardcoded, because using too many causes the
    # Travis VM to run out of memory (since so many copies of inkscape and
    # ghostscript are running at the same time).
    - NPROC=2
    - OPENBLAS_NUM_THREADS=1
    - PYTHONFAULTHANDLER=1
    - PYTEST_ADDOPTS="-rawR --maxfail=50 --timeout=300 --durations=25 --cov-report= --cov=lib -n $NPROC"
    - RUN_PEP8=

matrix:
  include:
    - python: 3.5
      # pytest-cov>=2.3.1 due to https://github.com/pytest-dev/pytest-cov/issues/124.
      env:
        - CYCLER=cycler==0.10
        - DATEUTIL=python-dateutil==2.1
        - NOSE=nose
        - NUMPY=numpy==1.10.0
        - PANDAS='pandas<0.21.0'
        - PYPARSING=pyparsing==2.0.1
        - PYTEST=pytest==3.4
        - PYTEST_COV=pytest-cov==2.3.1
        - SPHINX=sphinx==1.3
    - python: 3.5
      env:
        # - PYTHONOPTIMIZE=2  # This currently doesn't work.
    - python: 3.6
      env:
        - DELETE_FONT_CACHE=1
        - PANDAS='pandas<0.21.0'
        - JUPYTER='jupyter'
        - PYTEST_PEP8=pytest-pep8
        - PYTEST_ADDOPTS="$PYTEST_ADDOPTS --pep8"
    - python: "nightly"
      env: PRE=--pre
    - os: osx
      language: generic  # https://github.com/travis-ci/travis-ci/issues/2312
      only: master
      cache:
        # As for now travis caches only "$HOME/.cache/pip"
        # https://docs.travis-ci.com/user/caching/#pip-cache
        pip: false
        directories:
          - $HOME/Library/Caches/pip
          # `cache` does not support `env`-like `global` so copy-paste from top
          - $HOME/.ccache  # https://github.com/travis-ci/travis-ci/issues/5853
          - $HOME/.cache/matplotlib
  allow_failures:
    - python: "nightly"

before_install: |
  # test with non-ascii in path
  if [[ $TRAVIS_OS_NAME != 'osx' ]]; then
    export PATH=/usr/lib/ccache:$PATH
  else
    ci/silence brew update
    brew upgrade python
    brew install ffmpeg imagemagick mplayer ccache
    hash -r
    which python
    python --version
    # We could install ghostscript and inkscape here to test svg and pdf
    # but this makes the test time really long.
    # brew install ghostscript inkscape
    export PATH=/usr/local/opt/python/libexec/bin:/usr/local/opt/ccache/libexec:$PATH
  fi

install:
  - |
    # Setup environment.
    ccache -s
    git describe
    # Upgrade pip and setuptools and wheel to get as clean an install as possible.
    python -mpip install --upgrade pip setuptools wheel
  - |
    # Install dependencies from PyPI.
    python -mpip install --upgrade $PRE \
        codecov \
        coverage \
        $CYCLER \
        $DATEUTIL \
        $NOSE \
        $NUMPY \
        $PANDAS \
        $JUPYTER \
        pillow \
        $PYPARSING \
        $SPHINX \
        tornado
    # GUI toolkits are pip-installable only for some versions of Python so
    # don't fail if we can't install them.  Make it easier to check whether the
    # install was successful by trying to import the toolkit (sometimes, the
    # install appears to be successful but shared libraries cannot be loaded at
    # runtime, so an actual import is a better check).
    python -mpip install cairocffi pgi &&
      python -c 'import pgi as gi; gi.require_version("Gtk", "3.0"); from pgi.repository import Gtk' &&
      echo 'pgi is available' ||
      echo 'pgi is not available'
    python -mpip install pyqt5 &&
      python -c 'import PyQt5.QtCore' &&
      echo 'PyQt5 is available' ||
      echo 'PyQt5 is not available'
    python -mpip install -U \
      --no-index -f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-14.04 \
      wxPython &&
      python -c 'import wx' &&
      echo 'wxPython is available' ||
      echo 'wxPython is not available'

    python -mpip install $PRE \
        $PYTEST \
        $PYTEST_COV \
        pytest-faulthandler \
        $PYTEST_PEP8 \
        pytest-rerunfailures \
        pytest-timeout \
        pytest-xdist
  - |
    # Install matplotlib
    python -mpip install -ve .

before_script: |
  if [[ $TRAVIS_OS_NAME != 'osx' ]]; then
    export DISPLAY=:99.0
    sh -e /etc/init.d/xvfb start
  fi
  if [[ $DELETE_FONT_CACHE == 1 ]]; then
    rm -rf ~/.cache/matplotlib
  fi

script: |
  echo "Calling pytest with the following arguments: $PYTEST_ADDOPTS"
  python -mpytest

before_cache: |
  rm -rf $HOME/.cache/matplotlib/tex.cache
  rm -rf $HOME/.cache/matplotlib/test_cache

after_failure: |
  if [[ $TRAVIS_PULL_REQUEST == false && $TRAVIS_REPO_SLUG == 'matplotlib/matplotlib' ]]; then
    tar cjf result_images.tar.bz2 result_images
    echo 'See "Uploading Artifacts" near the end of the log for the download URL'
  else
    echo "The result images will only be uploaded if they are on the matplotlib/matplotlib repo - this is for security reasons to prevent arbitrary PRs echoing security details."
  fi

after_success: |
  codecov -e TRAVIS_PYTHON_VERSION