maint: add a .travis config

- Closes #6 (smoke-test has been split to #15.
- Closes #12
- Prepares for #7

.travis.yml

@@ -0,0 +1,96 @@
+# vim ft=yaml
+dist: xenial
+sudo: true
+language: python
+
+cache:
+  directories:
+    - $HOME/.cache/pip
+
+python:
+  - 3.6
+  - 3.7
+  - 3.8
+
+env:
+  global:
+    - CHECK_TYPE="install"
+    - INSTALL_TYPE="pip"
+    - INSTALL_DEPENDS="pip setuptools"
+  matrix:
+    - CHECK_TYPE="style"
+    - CHECK_TYPE="test"
+    - INSTALL_TYPE="sdist"
+    - INSTALL_TYPE="wheel"
+    - INSTALL_DEPENDS="pip==18.1 setuptools==30.2.1"
+    - INSTALL_DEPENDS="pip==10.0.1 setuptools==30.4.0"
+
+matrix:
+  exclude:
+  - python: 3.7
+    env: CHECK_TYPE="style"
+  allow_failures:
+  - python: 3.6
+    env: INSTALL_DEPENDS="pip==10.0.1 setuptools==30.4.0"
+  - python: 3.7
+    env: INSTALL_DEPENDS="pip==10.0.1 setuptools==30.4.0"
+  - python: 3.8
+    env: INSTALL_DEPENDS="pip==10.0.1 setuptools==30.4.0"
+
+before_install:
+  - python -m pip install --upgrade pip virtualenv
+  - virtualenv --python=python /tmp/venv
+  - source /tmp/venv/bin/activate
+  - python --version
+  - python -m pip --version
+  - python -m pip install --upgrade $INSTALL_DEPENDS
+  - python -m pip --version
+  - |
+    if [ "$INSTALL_TYPE" == "pip" ]; then
+        PACKAGE="-e ."
+    elif [ "$INSTALL_TYPE" == "sdist" ]; then
+        python setup.py sdist
+        PACKAGE="$( ls dist/*.tar.gz )"
+    elif [ "$INSTALL_TYPE" == "wheel" ]; then
+        python setup.py bdist_wheel
+        PACKAGE="$( ls dist/*.whl )"
+    fi
+
+install:
+  - python -m pip install $PACKAGE
+  - |
+    INTENDED_VERSION="$(python -c 'import versioneer; print(versioneer.get_version())')"
+    pushd /tmp
+    INSTALLED_VERSION="$(python -c 'import nirodents; print(nirodents.__version__)')"
+    python -c 'import nirodents; print(nirodents.__file__)'
+    echo "Intended: $INTENDED_VERSION"
+    echo "Installed: $INSTALLED_VERSION"
+    test "$INTENDED_VERSION" == "$INSTALLED_VERSION"
+    popd
+  - if [ "$CHECK_TYPE" = "install" ]; then exit 0; fi
+
+before_script:
+  - travis_retry python -m pip install "nirodents[$CHECK_TYPE]"
+  - |
+    if [ "$CHECK_TYPE" == "test" ]; then
+        mkdir -p $HOME/.cache/stanford-crn
+        curl -sSL  "http://github.com/chrisfilo/BIDS-examples-1/archive/enh/ds054.tar.gz" |
+            tar xvzf - -C $HOME/.cache/stanford-crn
+        curl -sSL "https://files.osf.io/v1/resources/fvuh8/providers/osfstorage/57f328f6b83f6901ef94cf70" |
+            tar xvzf - -C $HOME/.cache/stanford-crn
+    fi
+
+script:
+  - |
+    if [ "$CHECK_TYPE" == "style" ]; then
+      flake8 nirodents
+    elif [ "$CHECK_TYPE" == "test" ]; then
+      pytest -n 2 -v --cov nirodents --cov-report xml:cov.xml \
+             --ignore=nirodents/interfaces/ants.py nirodents
+    else
+      false
+    fi
+
+after_script:
+  - python -m pip install codecov
+  - python -m codecov --flags travis --file cov.xml -e $TRAVIS_JOB_NUMBER

setup.cfg

@@ -90,29 +90,3 @@ doctests = False
 ignore =
     W503
 exclude=*build/
-per-file-ignores =
-    **/__init__.py : F401
-    docs/conf.py : E265
-
-[tool:pytest]
-norecursedirs = .git
-addopts = -svx --doctest-modules
-doctest_optionflags = ALLOW_UNICODE NORMALIZE_WHITESPACE ELLIPSIS
-env =
-    PYTHONHASHSEED=0
-filterwarnings =
-    ignore::DeprecationWarning
-junit_family=xunit2
-
-[coverage:run]
-branch = True
-omit =
-    */tests/*
-    nirodents/_version.py
-    nirodents/conftest.py
-
-[coverage:report]
-# Regexes for lines to exclude from consideration
-exclude_lines =
-    raise NotImplementedError
-    warnings\.warn