add .travis.yml

Author: rhpvorderman

.travis.yml

@@ -0,0 +1,36 @@
+language: python
+dist: focal
+
+before_install:
+  # Install conda
+  - export MINICONDA=${HOME}/miniconda
+  - export PATH=${MINICONDA}/bin:${PATH}
+  - wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O miniconda.sh
+  - bash miniconda.sh -b -f -p ${MINICONDA}
+  - conda config --set always_yes yes
+  - conda config --add channels defaults
+  - conda config --add channels conda-forge
+install:
+  - conda install python=$TRAVIS_PYTHON_VERSION, isa-l, tox
+
+python: 3.5  # Use the oldest supported version of python as default.
+script:
+    - tox -e $TOX_ENV
+matrix:
+  include:
+    # TEST DOCS AND LINTING
+    # Use default python3 version here.
+    - env: TOX_ENV=docs
+    - env: TOX_ENV=lint
+    # UNIT TESTS
+    # On most recent versions of python.
+    - env: TOX_ENV=py35
+      after_success:
+        - pip install codecov
+        - codecov -v  # -v to make sure coverage upload works.
+    - python: 3.6
+      env: TOX_ENV=py36
+    - python: 3.7
+      env: TOX_ENV=py37
+    - python: 3.8
+      env: TOX_ENV=py38