[build] Make sure only binaries of OpenCV/PyAV are used.

Source distributions can't be built without the required toolchain
and libraries available on the build system.

Make sure Python packages are also built during the Linux build.

Author: Breakthrough

.travis.yml

@@ -35,10 +35,16 @@ matrix:
 
 install:
   - "python -m pip install --upgrade pip"
+  # Make sure we get latest binary packages of the video input libraries.
+  - "python -m pip install av opencv-python-headless --only-binary :all:"
+  # Install other required packages and download required test resources.
   - "python -m pip install -r requirements_headless.txt"
   - "git fetch --depth=1 https://github.com/Breakthrough/PySceneDetect.git refs/heads/resources:refs/remotes/origin/resources"
   - "git checkout refs/remotes/origin/resources -- tests/resources/"
+  # Make sure the Python package is buildable.
+  - "python setup.py sdist bdist_wheel"
 
 script:
-  # TODO: Need to install ffmpeg/mkvtoolnix to run split-video tests.
   - python -m pytest tests/
+  # TODO: Install and test the built Python packages.
+  # TODO: Install ffmpeg/mkvtoolnix to run split-video tests.

appveyor.yml

@@ -28,7 +28,10 @@ install:
   - python -m pip install --upgrade pip
   - python -m pip install --upgrade setuptools wheel pyinstaller==4.10
 
-  # Install PySceneDetect dependencies and checkout resources required for tests.
+  # Make sure we get latest binary packages of the video input libraries.
+  - python -m pip install av opencv-python-headless --only-binary ":all:"
+
+  # Install other PySceneDetect dependencies and checkout resources required for tests.
   - python -m pip install -r requirements_headless.txt
   - git fetch --depth=1 https://github.com/Breakthrough/PySceneDetect.git refs/heads/resources:refs/remotes/origin/resources
   - git checkout refs/remotes/origin/resources -- tests/resources/
@@ -45,7 +48,7 @@ test_script:
   - 7z e dist/windows_thirdparty.7z
 
   # Run Unit Tests
-  - pytest
+  - python -m pytest tests/
 
   # TODO: Test Python Distributions install and function correctly.
   # Wildcard expansion doesn't seem to work with pip here, e.g. the following fails:
@@ -58,6 +61,9 @@ test_script:
 
 
 artifacts:
+  # TODO: Need to incorporate the build number into the package version. Use a custom setup.py
+  # that modifies the version number in the package before building using an environment variable.
+
   - path: dist/*.tar.gz
     name: PySceneDetect-sdist