ci: add trusted publisher and attestations (#44)

Signed-off-by: Henry Schreiner <[email protected]>

.github/workflows/cd.yml

@@ -0,0 +1,44 @@
+name: CD
+
+on:
+  workflow_dispatch:
+  release:
+    types:
+      - published
+
+jobs:
+  dist:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: hynek/build-and-inspect-python-package@v2
+
+
+  deploy:
+    if: github.event_name == 'release' && github.event.action == 'published'
+    needs: [dist]
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/p/scikit-build-core
+    permissions:
+      id-token: write
+      attestations: write
+
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: Packages
+          path: dist
+
+      - name: Generate artifact attestation for sdist and wheel
+        uses: actions/attest-build-provenance@v1
+        with:
+          subject-path: "dist/*"
+
+      - uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          attestations: true

.github/workflows/ci.yml

@@ -48,25 +48,3 @@ jobs:
       - name: Test with pytest
         run: |
           pytest --cov=formulate --verbose
-
-  dist:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v2
-
-      - name: Install wheel and sdist requirements
-        run: python -m pip install "build"
-
-      - name: Build sdist and wheel
-        run: python3 -m build
-
-      - uses: actions/upload-artifact@v4
-        with:
-          path: dist
-
-      - uses: pypa/gh-action-pypi-publish@master
-        with:
-          user: __token__
-          password: ${{ secrets.pypi_password }}
-        if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')