Replace Travis with GitHub Actions

.github/workflows/tests.yaml

+name: CI Testing
+on:
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+jobs:
+  test:
+    name: "Python ${{ matrix.python }} Django ${{ matrix.django }}"
+    runs-on: ubuntu-latest
+    strategy:
+      # max-parallel: 8  # default is max available
+      fail-fast: false
+      matrix:
+        include:
+          # Django 2.2
+          - django: "2.2"
+            python: "3.6"
+          # Django 3.1
+          - django: "3.1"
+            python: "3.6"
+          # Django 3.2
+          - django: "3.2"
+            python: "3.6"
+          # Django 4.0
+          - django: "4.0b1"
+            python: "3.10"
+
+    steps:
+      - name: Install gettext
+        run: sudo apt-get install -y gettext
+
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Setup Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Install Packages
+        run: |
+          python -m pip install -U pip
+          python -m pip install "Django~=${{ matrix.django }}" django-storages boto3 codecov -e .[tests]
+
+      - name: Run Tests
+        run: |
+          echo "Python ${{ matrix.python }} / Django ${{ matrix.django }}"
+          coverage run --rcfile=.coveragerc runtests.py
+          codecov
+        continue-on-error: ${{ contains(matrix.django, '4.0') }}

.travis.yml

-sudo: false
-language: python
-cache: pip
-python:
-- '3.8'
-env:
-- DJANGO="django~=2.2"
-- DJANGO="django~=3.0"
-- DJANGO="django~=3.1"
-- DJANGO="django~=3.2"
-- DJANGO="https://github.com/django/django/archive/main.tar.gz"
-matrix:
-  allow_failures:
-  - env: DJANGO="https://github.com/django/django/archive/main.tar.gz"
-
-before_install:
-- pip install codecov
-install:
-- pip install $DJANGO django-storages boto3 -e .
-script:
-- coverage run --rcfile=.coveragerc runtests.py
-after_success:
-- codecov
-branches:
-  only:
-  - master
-notifications:
-  email:
-    recipients:
-    - travis@edoburu.nl
-    on_success: never
-    on_failure: always
-  slack:
-    secure: WWNa4MHf50AOybB+XW9UKXCk/9Q8r++Jc4xTdEib43rj4odH9wxIaTRrzAbbpo3EO2gYuLgq6mMbaIZPD5l2UmgSnyuIbeYAAKIQblT+8XMamtXwnSS5j9vfBXYdj54rTlh+jKwEMW/JiQKl+SQpfQ2v1NMvYO63m89Ev9vXvcU=
-    on_success: never
-    on_failure: always

README.rst

-.. image:: https://img.shields.io/travis/edoburu/django-private-storage/master.svg?branch=master
-    :target: http://travis-ci.org/edoburu/django-private-storage
+django-private-storage
+======================
+
+.. image:: https://github.com/edoburu/django-private-storage/actions/workflows/tests.yaml/badge.svg?branch=master
+    :target: https://github.com/edoburu/django-private-storage/actions/workflows/tests.yaml
 .. image:: https://img.shields.io/pypi/v/django-private-storage.svg
     :target: https://pypi.python.org/pypi/django-private-storage/
 .. image:: https://img.shields.io/pypi/l/django-private-storage.svg
@@ -7,9 +10,6 @@
 .. image:: https://img.shields.io/codecov/c/github/edoburu/django-private-storage/master.svg
     :target: https://codecov.io/github/edoburu/django-private-storage?branch=master
 
-django-private-storage
-======================
-
 This module offers a private media file storage,
 so user uploads can be protected behind a login.