Use GitHub Actions for CI. (#641)

This sets up GitHub Actions (GHA) to run in place of the
currently broken Travis CI.  Initially, this only covers running
tox/pytest and Black, but may eventually be extended to run pylint,
mypy, flake8, etc. - see #605, for example.

Notes:
* Python 3.10 is not yet supported due to the `collections.Iterable`
  issue discussed in #330, #624, etc.
* The Black CI step acts as a linting step, rather than attempting to
  have the GHA job automatically update/commit/push the reformarted
  code.
* Black is currently pinned to an older version that supports
  `--target-version py27` until Python 2 compatibility can be dropped in
  the final Python 2 compatibility release of ffmpeg-python.
* Only the main source directory (`ffmpeg/`) is checked with Black at
  the moment.  The `examples/` directory should also be checked, but
  will be done as a separate PR.

Co-authored by: Christian Clauss <cclauss@me.com>

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: CI
+on:
+  - push
+  - pull_request
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - "2.7"
+          - "3.5"
+          - "3.6"
+          - "3.7"
+          - "3.8"
+          - "3.9"
+          # - "3.10"  # FIXME: broken due to `collections.Iterable` issue; see #330 / #624 / etc.
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install ffmpeg
+        run: |
+          sudo apt update
+          sudo apt install ffmpeg
+      - name: Setup pip + tox
+        run: |
+          python -m pip install --upgrade \
+            "pip==20.3.4; python_version < '3.6'" \
+            "pip==21.3.1; python_version >= '3.6'"
+          python -m pip install tox==3.24.5 tox-gh-actions==2.9.1
+      - name: Test with tox
+        run: tox
+  black:
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: psf/black@21.12b0 # TODO: upgrade after dropping Python 2 support.
+        with:
+          src: ffmpeg  # TODO: also format `examples`.
+          version: 21.12b0

.travis.yml

@@ -1,32 +0,0 @@
-language: python
-before_install:
-  - >
-    [ -f ffmpeg-release/ffmpeg ] || (
-        curl -O https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz &&
-        mkdir -p ffmpeg-release &&
-        tar Jxf ffmpeg-release-amd64-static.tar.xz --strip-components=1 -C ffmpeg-release
-    )
-matrix:
-  include:
-    - python: 2.7
-      env: TOX_ENV=py27
-    - python: 3.4
-      env: TOX_ENV=py34
-    - python: 3.5
-      env: TOX_ENV=py35
-    - python: 3.6
-      env: TOX_ENV=py36
-    - python: 3.7
-      dist: xenial  # required for Python >= 3.7
-      env: TOX_ENV=py37
-    - python: pypy
-      env: TOX_ENV=pypy
-install:
-  - pip install tox
-script:
-  - export PATH=$(readlink -f ffmpeg-release):$PATH
-  - tox -e $TOX_ENV
-cache:
-  directories:
-    - .tox
-    - ffmpeg-release

README.md

@@ -1,6 +1,9 @@
 # ffmpeg-python: Python bindings for FFmpeg
 
-[![Build status](https://travis-ci.org/kkroening/ffmpeg-python.svg?branch=master)](https://travis-ci.org/kkroening/ffmpeg-python)
+[![CI][ci-badge]][ci]
+
+[ci-badge]: https://github.com/kkroening/ffmpeg-python/actions/workflows/ci.yml/badge.svg
+[ci]: https://github.com/kkroening/ffmpeg-python/actions/workflows/ci.yml
 
 <img src="https://raw.githubusercontent.com/kkroening/ffmpeg-python/master/doc/formula.png" alt="ffmpeg-python logo" width="60%" />
 

ffmpeg/_utils.py

@@ -40,7 +40,6 @@ if sys.version_info.major >= 3:
     class basestring(with_metaclass(BaseBaseString)):
         pass
 
-
 else:
     # noinspection PyUnresolvedReferences,PyCompatibility
     from builtins import basestring

setup.py

@@ -60,8 +60,6 @@ keywords = misc_keywords + file_formats
 setup(
     name='ffmpeg-python',
     packages=['ffmpeg'],
-    setup_requires=['pytest-runner'],
-    tests_require=['pytest', 'pytest-mock'],
     version=version,
     description='Python bindings for FFmpeg - with complex filtering support',
     author='Karl Kroening',

tox.ini

@@ -4,7 +4,16 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py34, py35, py36, py37, pypy
+envlist = py27, py35, py36, py37, py38, py39
+
+[gh-actions]
+python =
+    2.7: py27
+    3.5: py35
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39
 
 [testenv]
 commands = py.test -vv