[CI] Implementation of of CI pipeline for testing and building

Author: lukbrb

.github/workflows/cibuild.yml

@@ -0,0 +1,29 @@
+name: Building FV2D
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+          fetch-depth: 0
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential cmake python3-venv python3-dev libhdf5-dev pkg-config
+
+      - name: Configure and build fv2d
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. -DCMAKE_BUILD_TYPE=Release
+          cmake --build . -- -j$(nproc || 2)

.github/workflows/test.yml

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+name: Non-Regression Tests
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+    branches: [ "**" ]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: 'recursive'
+          fetch-depth: 0
+          lfs: true
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          # Install HDF5 dev packages so CMake/FindHDF5 can locate the libraries and headers
+          sudo apt-get install -y build-essential cmake python3-venv python3-dev libhdf5-dev pkg-config
+
+      - name: Configure and build fv2d
+        run: |
+          mkdir -p build
+          cd build
+          cmake .. -DCMAKE_BUILD_TYPE=Release
+          cmake --build . -- -j$(nproc || 2)
+
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install UV and sync environment
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install uv
+          cd tests
+          uv sync
+
+      - name: Run tests with uv (from tests directory)
+        run: |
+          cd tests
+          uv run pytest -v --junitxml=tests.xml
+        env:
+          PYTHONPATH: "${{ github.workspace }}"
+
+      - name: Upload test results (pytest junit)
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: pytest-report
+          path: tests/*.xml