Automatically generate nanobind stubgen

.github/workflows/windows.yml

@@ -18,10 +18,29 @@ jobs:
   build-combined:
     name: Combined build and test
     runs-on: windows-2022
+    permissions:
+      packages: write
     env:
-      VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
+      USERNAME: FEniCS
+      VCPKG_EXE: C:/vcpkg/vcpkg
+      FEED_URL: https://nuget.pkg.github.com/FEniCS/index.json
+      VCPKG_BINARY_SOURCES: "clear;nuget,https://nuget.pkg.github.com/FEniCS/index.json,readwrite"
 
     steps:
+      - name: Add NuGet sources
+        shell: pwsh
+        run: |
+          .$(${{ env.VCPKG_EXE }} fetch nuget) `
+            sources add `
+            -Source "${{ env.FEED_URL }}" `
+            -StorePasswordInClearText `
+            -Name GitHubPackages `
+            -UserName "${{ env.USERNAME }}" `
+            -Password "${{ secrets.GITHUB_TOKEN }}"
+          .$(${{ env.VCPKG_EXE }} fetch nuget) `
+            setapikey "${{ secrets.GITHUB_TOKEN }}" `
+            -Source "${{ env.FEED_URL }}"
+
       - uses: actions/checkout@v5
 
       - name: Export GitHub Actions cache environment variables

python/CMakeLists.txt

@@ -81,3 +81,7 @@ else()
 endif()
 
 install(TARGETS _basixcpp LIBRARY DESTINATION basix)
+
+# and the nanobind typing stubs.
+nanobind_add_stub(_basixcpp_stub MODULE _basixcpp OUTPUT $<TARGET_FILE_DIR:_basixcpp>/_basixcpp.pyi MARKER_FILE $<TARGET_FILE_DIR:_basixcpp>/py.typed PYTHON_PATH $<TARGET_FILE_DIR:_basixcpp> DEPENDS _basixcpp)
+install(FILES $<TARGET_FILE_DIR:_basixcpp>/py.typed $<TARGET_FILE_DIR:_basixcpp>/_basixcpp.pyi DESTINATION basix)