language: python

dist: xenial

services:
  - xvfb

branches:
  except:
  - /^auto-backport-of-pr-\d*/
  - /^v\d+\.\d+\.[\dx]+-doc$/

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:
    packages:
      - cm-super
      - dvipng
      - ffmpeg
      - gdb
      - gir1.2-gtk-3.0
      - graphviz
      - inkscape
      - lcov
      - libcairo2
      - libcairo2-dev
      - libffi-dev
      - libgeos-dev
      - libgirepository1.0-dev
      - lmodern
      - fonts-freefont-otf
      - texlive-pictures
      - pkg-config
      - qtbase5-dev
      - texlive-fonts-recommended
      - texlive-latex-base
      - texlive-latex-extra
      - texlive-latex-recommended
      - texlive-luatex
      - texlive-xetex
      - ttf-wqy-zenhei

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=
    - EXTRAREQS=  # Location of an extra pip requirements file.
    - PINNEDVERS=  # Location of a pip constraints file.
    # Variables controlling the test run.
    - DELETE_FONT_CACHE=
    - NO_AT_BRIDGE=1  # Necessary for GTK3 interactive test.
    - OPENBLAS_NUM_THREADS=1
    - PYTHONFAULTHANDLER=1
    - RUN_PYTEST=1
    - RUN_FLAKE8=

matrix:
  include:
    - name: flake8
      python: 3.6
      env:
        - RUN_PYTEST=
        - RUN_FLAKE8=1
        - EXTRAREQS='-r requirements/testing/travis_flake8.txt'
    - python: 3.6
      env:
        - PINNEDVERS='-c requirements/testing/travis36minver.txt'
        - DELETE_FONT_CACHE=1
    - python: 3.7
      env:
        - EXTRAREQS='-r requirements/testing/travis_extra.txt'
    - python: 3.8
      env:
        - EXTRAREQS='-r requirements/testing/travis_extra.txt'
    - 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: |
  case "$TRAVIS_OS_NAME" in
  linux)
    export PATH=/usr/lib/ccache:$PATH
    ;;
  osx)
    set -e
    ci/silence brew update
    brew uninstall numpy gdal postgis
    brew unlink python@2
    brew upgrade python
    brew install ffmpeg imagemagick mplayer ccache
    hash -r
    which python
    python --version
    set +e
    # 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
    ;;
  esac

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 -r requirements/testing/travis_all.txt $EXTRAREQS $PINNEDVERS
  - |
    # Install optional dependencies from PyPI.
    # Sphinx is needed to run sphinxext tests
    python -mpip install --upgrade sphinx
    # 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 --upgrade pycairo cairocffi>=0.8
    python -mpip install --upgrade PyGObject &&
      python -c 'import gi; gi.require_version("Gtk", "3.0"); from gi.repository import Gtk' &&
      echo 'PyGObject is available' ||
      echo 'PyGObject is not available'
    python -mpip install --upgrade pyqt5 &&
      python -c 'import PyQt5.QtCore' &&
      echo 'PyQt5 is available' ||
      echo 'PyQt5 is not available'
    python -mpip install --upgrade pyside2 &&
      python -c 'import PySide2.QtCore' &&
      echo 'PySide2 is available' ||
      echo 'PySide2 is not available'
    python -mpip install --upgrade \
      -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'

  # Set flag in a delayed manner to avoid issues with installing other packages
  - |
    if [[ $TRAVIS_OS_NAME != 'osx' ]] && [[ $RUN_PYTEST == 1 ]]; then
      export CPPFLAGS=--coverage
    fi
  - |
    python -mpip install -ve .  # Install Matplotlib.
  - |
    if [[ $TRAVIS_OS_NAME != 'osx' ]] && [[ $RUN_PYTEST == 1 ]]; then
      unset CPPFLAGS
    fi

before_script: |
  if [[ $DELETE_FONT_CACHE == 1 ]]; then
    rm -rf ~/.cache/matplotlib
  fi

script:
  # Each script we want to run need to go in its own section and the program
  # you want to fail travis needs to be the last thing called.
  - |
    if [[ $RUN_PYTEST == 1 ]]; then
      # The number of processes is hardcoded (-n2), 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).
      python -mpytest -raR --maxfail=50 --timeout=300 --durations=25 --cov-report= --cov=lib -n2 --log-level=DEBUG
    fi
  - |
    if [[ $RUN_FLAKE8 == 1 ]]; then
      flake8 --statistics && echo "Flake8 passed without any issues!"
    fi

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:
  - lcov --capture --directory . --output-file coverage.info
  - lcov --remove coverage.info --output-file coverage.info '/usr/*' '/home/travis/build/matplotlib/matplotlib/build/*' '/home/travis/build/matplotlib/matplotlib/extern/*' # filter system-files
  - lcov --list coverage.info
  # Uploading to CodeCov but excluding gcov reports
  - bash <(curl -s https://codecov.io/bash) -f "!*.gcov" -X gcov -e TRAVIS_PYTHON_VERSION -y ci/codecov.yml|| echo "Codecov did not collect coverage reports"