CI: add a job for trusted publishing when pushing a tag

Author: rgommers

.github/workflows/release.yml

@@ -0,0 +1,62 @@
+# SPDX-FileCopyrightText: 2025 The meson-python developers
+#
+# SPDX-License-Identifier: MIT
+
+name: Release
+on:
+  push:
+    tags:
+      - "*"
+    branches:
+      - main
+      - release-*
+  pull_request:
+    branches:
+      - main
+      - release-*
+
+jobs:
+  build-artifacts:
+    name: Build sdist and wheel
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.14
+
+      - name: Install pypa/build
+        run: |
+          python -m pip install build
+
+      - name: Run pypa/build
+        run: |
+          python -m build
+
+      - uses: actions/upload-artifact@v4
+        with:
+          path: ./dist/meson_python-*
+
+  pypi-publish:
+    name: Upload release to PyPI
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+    environment:
+      name: pypi
+      url: https://pypi.org/p/meson-python
+    permissions:
+      id-token: write
+    steps:
+      - name: Download sdist and wheel
+        uses: actions/download-artifact@v5
+        with:
+          path: dist
+          merge-multiple: true
+
+      - name: Publish package distributions to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          print-hash: true