Remove TravisCI and use actions build matrix

.github/workflows/django.yml

@@ -13,7 +13,39 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        include:
+          - python-version: 2.7
+            django-version: Django==1.11
+
+          - python-version: 3.4
+            django-version: Django==2.0
+
+          - python-version: 3.5
+            django-version: Django==2.0
+
+          - python-version: 3.5
+            django-version: Django==2.1
+
+          - python-version: 3.6
+            django-version: Django==2.1
+
+          - python-version: 3.6
+            django-version: Django==2.2
+
+          - python-version: 3.6
+            django-version: Django==3.0
+
+          - python-version: 3.7
+            django-version: Django==2.2
+
+          - python-version: 3.7
+            django-version: Django==3.0
+
+          - python-version: 3.8
+            django-version: Django==3.1
+
+          - python-version: 3.9
+            django-version: Django==3.1
 
     steps:
     - uses: actions/checkout@v2
@@ -24,7 +56,8 @@ jobs:
     - name: Install Dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        pip install coveralls coverage
+        pip install ${{ matrix.django-version }}
     - name: Run Tests
       run: coverage run runtests.py
 

.travis.yml

@@ -1,50 +0,0 @@
-language: python
-cache: pip
-
-python:
-  - "2.7"
-  - "3.6"
-  - "3.7"
-
-sudo: false
-
-env:
-  - DJANGO="Django>=1.8,<1.9"
-  - DJANGO="Django>=1.9,<1.10"
-  - DJANGO="Django>=1.10,<1.11"
-  - DJANGO="Django>=1.11,<2.0"
-  - DJANGO="Django>=2.0,<2.1"
-  - DJANGO="Django==2.2.12"
-  - DJANGO="Django==3.1.6"
-  - DJANGO="https://github.com/django/django/archive/master.tar.gz"
-
-matrix:
-  fast_finish: true
-  exclude:
-    - python: "2.7"
-      env: DJANGO="Django>=2.0,<2.1"
-    - python: "2.7"
-      env: DJANGO="Django==2.2.12"
-    - python: "2.7"
-      env: DJANGO="https://github.com/django/django/archive/master.tar.gz"
-    - python: "3.4"
-      env: DJANGO="https://github.com/django/django/archive/master.tar.gz"
-    - python: "3.6"
-      env: DJANGO="Django>=1.8,<1.11"
-    - python: "2.7"
-      env: DJANGO="Django==3.1.6"
-
-  allow_failures:
-    - env: DJANGO="https://github.com/django/django/archive/master.tar.gz"
-
-install:
-  - pip install coveralls coverage
-  - pip install $DJANGO
-
-script:
-  - coverage run runtests.py
-  - coverage report -m
-
-after_script:
-  - coverage combine
-  - coveralls

requirements.txt

@@ -1,3 +1,2 @@
 Django==2.2.14
 coverage==5.2.1
-coveralls==2.1.1