Add first version of GitHub Actions CI/CD pipeline.

.github/workflows/testing.yml

@@ -0,0 +1,61 @@
+name: CI/CD Pipeline
+
+on:
+  push:
+    branches:
+      - '*'  # Run on all branches
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    name: Linter
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+
+      - name: Run pylint
+        run: |
+          pylint gcnn/
+
+  unit_tests:
+    name: Unit Tests
+    runs-on: ubuntu-latest
+    needs: lint
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+
+      - name: Run unit tests
+        run: |
+          pytest --cov=gcnn/ --cov-report=xml
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage.xml