language: python

python:
- 3.5
- 3.6
- 3.7
- 3.7-dev
- 3.8
- 3.8-dev

# required for python >= 3.7
dist: xenial

env:
# https://pypi.org/project/pandas/#history
- PANDAS_VERSION=
- PANDAS_VERSION=1.*
- PANDAS_VERSION=0.25.*
- PANDAS_VERSION=0.24.*
- PANDAS_VERSION=0.23.*
- PANDAS_VERSION=0.22.*
- PANDAS_VERSION=0.21.*

# https://travis-ci.org/fphammerle/freesurfer-volume-reader/builds/525556257
matrix:
  exclude:
  # https://travis-ci.org/github/fphammerle/freesurfer-stats/jobs/683777317#L208
  # https://github.com/pandas-dev/pandas/commit/18efcb27361478daa3118079ecb166c733691ecb#diff-2eeaed663bd0d25b7e608891384b7298R814
  - python: 3.5
    env: PANDAS_VERSION=1.*
  - python: 3.7
    env: PANDAS_VERSION=0.21.*
  - python: 3.7
    env: PANDAS_VERSION=0.22.*
  - python: 3.7-dev
    env: PANDAS_VERSION=0.21.*
  - python: 3.7-dev
    env: PANDAS_VERSION=0.22.*
  # >/tmp/pip-install-g4jx0np4/numpy/_configtest.c:6: undefined reference to `exp'
  # https://travis-ci.org/github/fphammerle/freesurfer-stats/jobs/683704331#L437
  - python: 3.8
    env: PANDAS_VERSION=0.21.*
  # https://travis-ci.org/github/fphammerle/freesurfer-stats/jobs/683704330#L437
  - python: 3.8
    env: PANDAS_VERSION=0.22.*
  - python: 3.8-dev
    env: PANDAS_VERSION=0.21.*
  - python: 3.8-dev
    env: PANDAS_VERSION=0.22.*
  # no python3.8 wheels for pandas v0.24.2 & v0.23.4 available
  # https://travis-ci.org/github/fphammerle/freesurfer-stats/builds/701952350
  # build takes longer than 10min
  # https://travis-ci.org/github/fphammerle/freesurfer-stats/jobs/702077404#L199
  - python: 3.8
    env: PANDAS_VERSION=0.23.*
  - python: 3.8
    env: PANDAS_VERSION=0.24.*
  - python: 3.8-dev
    env: PANDAS_VERSION=0.23.*
  - python: 3.8-dev
    env: PANDAS_VERSION=0.24.*

install:
- pip install pipenv
- pipenv sync --dev
# ModuleNotFoundError: No module named 'importlib_metadata'
# https://github.com/WanzenBug/pylint-import-requirements/issues/17
- if python3 -c 'import sys; sys.exit(sys.version_info < (3, 8))'; then
  pipenv graph;
  pipenv install --dev importlib-metadata;
  fi
- if [ ! -z "$PANDAS_VERSION" ]; then
    pipenv install --selective-upgrade "pandas==$PANDAS_VERSION";
  fi
- pipenv graph

script:
- pipenv run pylint --load-plugins=pylint_import_requirements freesurfer_stats
- pipenv run pylint tests/*
- pipenv run pytest --cov=freesurfer_stats --cov-report=term-missing --cov-fail-under=100

after_success:
- pip install coveralls
- coveralls