dist: xenial
language: python
cache: pip
os: linux

python:
  - 3.6
  - 3.7
  - 3.8


before_install:
  - sudo apt-get -y -qq update
  
  # Ensure PIP is up-to-date to avoid warnings.
  - python -m pip install --upgrade pip
  # Ensure setuptools is up-to-date to avoid environment_markers bug.
  - pip install --upgrade setuptools
  # The default pytest that is installed is too old on some platforms, leading to version conflicts
  # pytest-cov contains plugin support for checking code coverage
  - pip install --upgrade pytest-cov
  - pip install flake8

  # Modify ImageMagick policy file so that Textclips work correctly.
  # `| sudo tee` replaces `>` so that it can have root permissions
  - cat /etc/ImageMagick-6/policy.xml | sed 's/none/read,write/g' | sudo tee /etc/ImageMagick-6/policy.xml

install:
  - pip install .[test]

before_script:
  # Stop the build if there are Python syntax errors or undefined names
  - flake8 . --count --select=E901,E999,F821,F822,F823,W605 --show-source --statistics
  # exit-zero treats all errors as warnings.  The GitHub editor is 127 chars wide.
  # Some warning codes are ignored because they conflict with black's formatting, or are
  # incompatible with MoviePy's structure
  # E203: whitespace before ':'
  # E302: expected 2 blank lines, found 0
  # E402: module level import not at top of file
  # W291: trailing whitespace
  # W293: blank line contains whitespace
  # W503: line break before binary operator
  - flake8 moviepy --ignore=E203,E302,E402,W291,W293,W503 --max-complexity=10 --max-line-length=127 --statistics --count --exit-zero
  # Check examples and tests with slightly relaxed rules to allow 'star' imports
  # F403 'from moviepy.editor import *' used; unable to detect undefined names
  # F405 'name' may be undefined, or defined from star imports: moviepy.editor
  - flake8 . --ignore=E203,E302,E402,W291,W293,W503,F403,F405 --exclude moviepy/ --max-complexity=10 --max-line-length=127 --statistics --count  --exit-zero


script:
  - pytest tests/ --doctest-modules -v --cov moviepy --cov-report term-missing
  # Now the *code* is tested, let's check that the setup is compatible with PIP without falling over.
  - pip install -e .
  - pip install -e .[optional]
  - pip install -e .[test]
  - pip install -e .[doc]

after_success:
  - coveralls