Add CI pipeline

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/cibuildwheel.yml

@@ -0,0 +1,76 @@
+name: build
+
+on:
+  push:
+  pull_request:
+  release:
+    types:
+      - published
+
+jobs:
+
+  source:
+    name: Build source package
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - uses: docker://python
+        with:
+          args: 'sh -c "pip install build && python -m build --sdist"'
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: source
+          path: dist/*
+
+  wheels:
+    name: Build binary packages
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-11, macos-14]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Set up QEMU
+        if: runner.os == 'Linux'
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
+
+      - name: Set up macOS compilers
+        if: runner.os == 'macOS'
+        run: |
+          echo "CIBW_ENVIRONMENT=CC=$(brew --prefix llvm@15)/bin/clang CXX=$(brew --prefix llvm@15)/bin/clang++ CPPFLAGS=-I$(brew --prefix libomp)/include LDFLAGS=-L$(brew --prefix libomp)/lib" >> "$GITHUB_ENV"
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v2.17
+
+      - uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.os }}
+          path: wheelhouse/*
+
+  publish:
+    name: Publish to PyPI
+    runs-on: ubuntu-latest
+    needs: [source, wheels]
+    if: github.event_name == 'release'
+
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          merge-multiple: true
+
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
+          packages-dir: artifact/