add hopefully improved CI parameters

.travis.yml

@@ -1,12 +1,39 @@
+os: linux
+arch: arm64-graviton2
+virt: lxd
+dist: focal
+group: edge
 language: python
-sudo: false
-cache: pip
+cache:
+  - directories:
+      - $HOME/.cache/pre-commit
+  - pip
+
+# Taken from https://github.com/encode/django-rest-framework/blob/master/.travis.yml
+matrix:
+    fast_finish: true
+    include:
+
+      - { python: "3.5", env: DJANGO=2.2 }
+
+      - { python: "3.6", env: DJANGO=2.2 }
+      - { python: "3.6", env: DJANGO=3.0 }
+      - { python: "3.6", env: DJANGO=3.1 }
+
+      - { python: "3.7", env: DJANGO=2.2 }
+      - { python: "3.7", env: DJANGO=3.0 }
+      - { python: "3.7", env: DJANGO=3.1 }
+
+      - { python: "3.8", env: DJANGO=3.0 }
+      - { python: "3.8", env: DJANGO=3.1 }
+
+      - { python: "3.9", env: DJANGO=3.1 }
 
 env:
 # Do not check the most up to date version as it seem to be in compatible with django_nose
 #  - DJANGO='https://github.com/django/django/archive/master.tar.gz'
-  - DJANGO='django>=2.2.0,<2.3.0'
-  - DJANGO='django>=3.0.0,<3.1.0'
+  - DJANGO='django>=2.2.0,<2.3'
+  - DJANGO='django>=3.0.0,<3.1'
   - DJANGO='django>=3.1.0,<3.2.0'
 
 python:
@@ -16,8 +43,32 @@ python:
     - "3.9"
     - "nightly"
 
+
+stages:
+  - linting
+  - test
+  - deploy
+
+jobs:
+  include:
+      - stage: linting
+        python: "3.9"
+        install: travis_retry pip install pre-commit
+        script: pre-commit run --all-files
+        env: DJANGO="none"
+      - stage: deploy
+        provider: pypi
+        python: "3.9"
+        env: DJANGO="none"
+        username: __token__
+        server: https://upload.pypi.org/legacy/
+        distributions: sdist bdist_wheel
+        password:
+        secure: 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
+        on:
+          tags: true
+
 install:
-  - travis_retry pip install tox tox-travis
+        - travis_retry pip install tox tox-travis
 
-script:
-  tox
+script: tox

CHANGELOG.rst

@@ -13,6 +13,8 @@ Version 0.4
 - pass base_unit from field to widget (`merge request #5 from cornelv`_)
 - now using PyScaffold for versioned release
 - added documentation and uploaded to readthedocs.org
+- using pre-commit (also in CI)
+- improved travis ci builds
 - Created Changelog file
 
 Version 0.4

tox.ini

@@ -1,15 +1,26 @@
 [tox]
-envlist=py{36,37,38,39}-django{22,30,31}
+envlist =
+       {py35,py36,py37}-django22,
+       {py36,py37,py38}-django30,
+       {py36,py37,py38,py39}-django31
+
+[travis:env]
+DJANGO =
+    2.2: django22
+    3.0: django30
+    3.1: django31
 
 [testenv]
 passenv = TRAVIS TRAVIS_*
 deps =
     django22: Django>=2.2,<2.3
     django30: Django>=3.0,<3.1
-    django31: Django>=3.1
+    django31: Django>=3.1,<3.2
     pytest
     pytest-cov
     pytest-django
     coveralls
 
-commands = coverage run --source=django-pint setup.py test
+commands =
+    coverage run --source=django-pint setup.py test
+    coveralls