.travis.yml

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#dist: trusty  # on 2016-12-13 pypy builds were broken on trusty, so we'll stick to stable for now
language: python

python:
  - 2.7
  - 3.4
  - 3.5
  - 3.6
  - 3.7
  - 3.8
  # stock versions of pypy provided by Travis CI don't work with cryptography 1.0
  #- pypy
  #- pypy3

branches:
  # https://github.com/travis-ci/travis-ci/issues/1147#issuecomment-160820262
  # this reduces workload on Travis if there are many pushes in a short time.
  # It does not have a drawback if:
  # - pull requests are used for review
  # - branches that we care about (not work-in-progress) are listed below
  only:
    - master

matrix:
  allow_failures:
    - python: pypy3  # https://github.com/pyca/cryptography/issues/2880
  include:
    # Source Code Analysis is slow.  We just run it once on
    # Python 2 and once on Python 3.
    - python: 2.7
      env: MODE=SCA
    - python: 3.5
      env: MODE=SCA

    # Enable nightly without globally enabling sudo and xenial for other build jobs
    # disabled because nosetests is not supported on 3.9. We'll move to pytest.
    # disabled by commenting out because Travis does not listen to matrix.allow_failures.python = [pypy3, nightly] for some reason
    #- python: nightly
    #  dist: xenial
    #  sudo: true

    - python: 3
      os: osx
      language: generic
      env:
        - OS_X_PYTHON_VERSION=python3
      before_cache:
        - rm -f "$HOME/Library/Caches/pip/log/debug.log"
      addons:
        homebrew:
          packages: python3

    # pypy
    - python: pypy
      env: PYPY_VERSION=pypy-4.0.1
    - python: pypy
      env: PYPY_VERSION=pypy-5.1
    - python: pypy3
      env: PYPY_VERSION=pypy3-2.4.0

    # test_raw_api takes too long to be run in every cell of the build matrix
    - python: 2.7
      env: MODE=TEST_RAW_API
    - python: 3.6
      env: MODE=TEST_RAW_API

    # coverage
    - python: 3.5
      env: MODE=coverage

cache:
  - pip
  - directories:
    - $HOME/.eggs
    # custom pypy versions
    - $HOME/.pyenv
    # OS X
    - $HOME/.virtualenvs/osx-python3
before_install:
  - uname -a
  - if [[ "$TRAVIS_OS_NAME" != "osx" ]]; then lsb_release -a; fi
  - |
        # install python on OS X
        if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
            travis_retry pip3 install virtualenv
            if [ ! -e "$HOME/.virtualenvs/osx-$OS_X_PYTHON_VERSION/bin/activate" ]; then
                virtualenv -p "$OS_X_PYTHON_VERSION" "$HOME/.virtualenvs/osx-$OS_X_PYTHON_VERSION"
            else
                echo 'skip virtualenv'
            fi
            source "$HOME/.virtualenvs/osx-$OS_X_PYTHON_VERSION/bin/activate"
        else
            echo skip
        fi
  - |
        # upgrade pypy (to a version that works with Cryptography 1.0)
        if [ -z "$PYPY_VERSION" ]; then
            echo 'this is a build of native Travis pypy/pypy3, not the upgraded one'
        elif [[ "$TRAVIS_PYTHON_VERSION" == "pypy" ]] || [[ "$TRAVIS_PYTHON_VERSION" == "pypy3" ]]; then
            export PYENV_ROOT="$HOME/.pyenv"
            if [ -f "$PYENV_ROOT/bin/pyenv" ]; then
                pushd "$PYENV_ROOT" && git pull && popd
            else
                rm -rf "$PYENV_ROOT" && git clone --depth 1 https://github.com/yyuu/pyenv.git "$PYENV_ROOT"
            fi
            echo "PYPY_VERSION=$PYPY_VERSION"
            travis_retry "$PYENV_ROOT/bin/pyenv" install --skip-existing "$PYPY_VERSION"
            if [ ! -e "$HOME/.virtualenvs/$PYPY_VERSION/bin/activate" ]; then
                virtualenv -p "$PYENV_ROOT/versions/$PYPY_VERSION/bin/python" "$HOME/.virtualenvs/$PYPY_VERSION"
            fi
            source "$HOME/.virtualenvs/$PYPY_VERSION/bin/activate"
        else
            echo skip upgrade pypy
        fi
  - virtualenv --version
  - python --version
  - |
        # upgrade setuptools if it's too old to support PEP 508
        # PEP 508 support is needed for python version dependent dependencies in requirements.txt/setup.py (e.g. futures)
        pip install "setuptools>=20.2"

install:
  - pip install -r requirements.txt
  - pip install -r requirements-setup.txt
  - pip install -r requirements-test.txt
  - pip install 'https://github.com/reef-technologies/b2-sdk-python/archive/shipping_split_fixes.zip#egg=b2sdk'

  - |
        # coverage has additional requirements
        if [ "$MODE" == 'coverage' ]; then
            travis_retry pip install "coverage==4.5.4"
            if [ -n "$CODACY_PROJECT_TOKEN" ]; then travis_retry pip install codacy-coverage; fi
            if [ -n "$COVERALLS_REPO_TOKEN" ]; then travis_retry pip install coveralls; fi
            if [ -n "$CODECOV_TOKEN" ]; then travis_retry wget https://codecov.io/bash -O codecov.sh && chmod +x codecov.sh; fi
        fi

before_script:
  - pip freeze

script:
  - |
        # nosetests
        if [ -z "$MODE" ]; then
            python setup.py nosetests
        elif [ "$MODE" == 'coverage' ]; then
            python setup.py nosetests --with-coverage --cover-xml --cover-package "$(python setup.py --name)" --cover-branches
        else
            echo skip
        fi
  - |
        # yapf
        if [ "$MODE" == 'SCA' ]; then
            if [ -n "$TRAVIS_COMMIT_RANGE" ]; then
                echo "using commit range: $TRAVIS_COMMIT_RANGE"
                git diff --name-only "$TRAVIS_COMMIT_RANGE" | grep '\.py$' | xargs yapf --diff setup.py || exit
            else
                yapf --diff --recursive . || exit
            fi
        else
            echo skip
        fi
  - |
        # pyflakes
        if [ "$MODE" == 'SCA' ]; then
            echo "pyflakes temporarily disabled because it does not respect # noqa and we need wildcard imports"
            return 0
            pyflakes . || exit
        else
            echo skip
        fi
  - |
        # run command to check liccheck
        if [ "$MODE" == 'SCA' ]; then
            liccheck -s ci/license_strategy.ini -r requirements.txt
        else
            echo skip
        fi

  # isort doesn't get along with yapf. Hopefully we'll figure it out and re-enable in the future.
  # - if [ "$MODE" == 'SCA' ]; then isort --order-by-type --recursive --line-width 100 --diff --verbose --check-only || exit; else echo skip; fi

  # home-made bad code detectors
  - if [ "$MODE" == 'SCA' ]; then egrep -r '^ *class [^\(]+(\(\))?:' . && exit 1 || true; else echo skip; fi  # old-style class detector
  - if [ "$MODE" == 'SCA' ]; then grep -r 'isinstance\(' . && exit 1 || true; else echo skip; fi  # very non-pythonic
  - if [ "$MODE" == 'SCA' ]; then egrep -r '\b(all|any)\(\[' . && exit 1 || true; else echo skip; fi  # a list is unnecesarily allocated where a generator expression could have been used
  - if [ "$MODE" == 'SCA' ]; then grep -r '\_\_metaclass\_\_' . && exit 1 || true; else echo skip; fi  # bad metaclass declaration: use six
  - if [ "$MODE" == 'SCA' ]; then grep -P -r '^ *logger = (?!logging\.getLogger\(__name__\)$)' . | grep -v '.eggs/nose-' && exit 1 || true; else echo skip; fi  # bad logger definition: use `logger = logging.getLogger(__name__)`. See the magic logging metaclass.
  # FIXME: temporary switch off checking of year in licence headers
  # - |
  #       if [ "$MODE" == 'SCA' ]; then
  #           missing="$(
  #               (
  #                   grep -l "Copyright $(date +%Y).*\\. All Rights Reserved." $(git ls-files | grep .py)
  #                   git ls-files | grep .py
  #               ) | sort | uniq -c | sort -n | awk '$1 == 1 && $2 !~ ".*/__init__.py"'
  #           )"
  #           if [ -n "$missing" ]; then
  #               echo 'license is missing from:' >&2
  #               echo "$missing" >&2
  #               return 1
  #           fi

  #           failing=0
  #           for file in $(git ls-files | grep .py)
  #           do
  #               if [ ! -f "$file" ]; then
  #                   echo "file with a newline in the name or space or something? \"$file\""
  #                   return 1
  #               fi
  #               license_path="$(grep -B3 'All Rights Reserved' "$file" | awk '/# File: / {print $3}')"
  #               if [ "$file" != "$license_path" ]; then
  #                   failing=1
  #                   echo "$file contains an inappropriate path in license header: \"$license_path\""
  #               fi
  #           done
  #           if [ "$failing" == 1 ]; then
  #               echo "license checker FAILED"
  #               return 1
  #           else
  #               echo "license checker passed"
  #           fi
  #       else
  #           echo skip
  #       fi

  # package installation
  - |
        if [ "$MODE" == 'SCA' ]; then
            echo skip
        else
            if [ -n "$OS_X_PYTHON_VERSION" ]; then
                # install action fails on osx for unknown reason
                python setup.py develop
            else
                python setup.py install
            fi
        fi

after_success:
  - if [ "$MODE" == 'coverage' -a -n "$CODACY_PROJECT_TOKEN" ]; then travis_retry python-codacy-coverage -r coverage.xml; else echo skip; fi
  - if [ "$MODE" == 'coverage' -a -n "$COVERALLS_REPO_TOKEN" ]; then travis_retry coveralls; else echo skip; fi
  - if [ "$MODE" == 'coverage' -a -n "$CODECOV_TOKEN" ]; then travis_retry ./codecov.sh -X gcov -X coveragepy; else echo skip; fi