feat(ci): Add initial CI pipeline

.github/workflows/main.yml

@@ -0,0 +1,79 @@
+name: Main pipeline
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+      branches:
+        - main
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [ "3.10" ]
+    env:
+      POETRY_HOME: /opt/poetry
+      PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Check Python version
+        run: python --version
+      - name: Install poetry
+        run: |
+          python -m venv $POETRY_HOME
+          $POETRY_HOME/bin/pip install "poetry~=1.7.1"
+          $POETRY_HOME/bin/poetry --version
+      - name: Build
+        run: |
+          $POETRY_HOME/bin/poetry build
+      - name: Validate
+        run: |
+          $POETRY_HOME/bin/poetry ruff check
+          $POETRY_HOME/bin/poetry ruff format --check
+          $POETRY_HOME/bin/poetry run mypy src/ tests/
+      - name: Run tests
+        run: |
+          $POETRY_HOME/bin/poetry run pytest tests/
+
+  build-and-publish:
+    # Only run if it's on main branch.
+    if: github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+    env:
+      POETRY_HOME: /opt/poetry
+      PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Check Python version
+        run: python --version
+      - name: Install poetry
+        run: |
+          python -m venv $POETRY_HOME
+          $POETRY_HOME/bin/pip install "poetry~=1.7.1"
+          $POETRY_HOME/bin/poetry --version
+      - name: Validate
+        run: |
+          $POETRY_HOME/bin/poetry ruff check
+          $POETRY_HOME/bin/poetry ruff format --check
+          $POETRY_HOME/bin/poetry run mypy src/ tests/
+      - name: Run tests
+        run: |
+          $POETRY_HOME/bin/poetry run pytest tests/
+      - name: Build
+        run: |
+          $POETRY_HOME/bin/poetry build
+      - name: Publish to PyPI
+        run: |
+          $POETRY_HOME/bin/poetry publish -u __token__ -p $PYPI_API_TOKEN