[ci] Use GitHub's CI for Windows unit tests

Author: cbentejac

.github/workflows/continuous-integration.yml

@@ -21,10 +21,10 @@ env:
 
 jobs:
   build-linux:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.8.14]
+        python-version: [ 3.9.13 ]
     env:
       MESHROOM_NODES_PATH: '${{ github.workspace }}/../meshroomNodes/meshroom/nodes'
 
@@ -53,3 +53,37 @@ jobs:
     - name: Test with pytest
       run: |
         pytest tests/
+
+  build-windows:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        python-version: [ 3.9.13 ]
+    env:
+      MESHROOM_NODES_PATH: '${{ github.workspace }}/../meshroomNodes/meshroom/nodes'
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Clone meshroomNodes
+        run: |
+          cd ..
+          git clone https://github.com/alicevision/meshroomNodes.git
+          cd ${{ github.workspace }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install flake8 pytest
+          pip install -r requirements.txt -r dev_requirements.txt --timeout 45
+      - name: Lint with flake8
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+          flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+      - name: Test with pytest
+        run: |
+          pytest tests/