ci: Windows arm64 packages #35345

Problem:
Neovim binaries are not provided for Windows ARM64.
GitHub Actions now offer native CI runners for Windows on ARM devices
(windows-11-arm), enabling automated builds and testing.

Solution:
- Modified CMake packaging to include packaging windows on arm binaries.
- Modified env script to install and initialize vs setup for arm64 arch. 

Co-authored-by: Justin M. Keyes <justinkz@gmail.com>

.github/scripts/env.ps1

@@ -1,9 +1,17 @@
 # This script enables Developer Command Prompt
 # See https://github.com/microsoft/vswhere/wiki/Start-Developer-Command-Prompt#using-powershell
-$installationPath = vswhere.exe -latest -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath
+if ($env:BUILD_ARCH -eq "arm64") {
-if ($installationPath -and (Test-Path "$installationPath\Common7\Tools\vsdevcmd.bat")) {
+  $arch = "arm64"
-  & "${env:COMSPEC}" /s /c "`"$installationPath\Common7\Tools\vsdevcmd.bat`" -arch=x64 -no_logo && set" | ForEach-Object {
+  $installationPath = vswhere.exe -latest -requires Microsoft.VisualStudio.Component.VC.Tools.arm64 -property installationPath
-    $name, $value = $_ -split '=', 2
+} else {
-    "$name=$value" >> $env:GITHUB_ENV
+  $arch = "x64"
-  }
+  $installationPath = vswhere.exe -latest -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath
+}
+
+if ($installationPath) {
+  & "${env:COMSPEC}" /s /c "`"$installationPath\Common7\Tools\vsdevcmd.bat`" -arch=$arch -no_logo && set" |
+    ForEach-Object {
+      $name, $value = $_ -split '=', 2
+      "$name=$value" >> $env:GITHUB_ENV
+    }
 }

.github/workflows/release.yml

@@ -132,27 +132,44 @@ jobs:
 
   windows:
     needs: setup
-    runs-on: windows-2022
+    strategy:
+      matrix:
+        include:
+          - runner: windows-2022
+            arch: x86_64
+            archive_name: nvim-win64
+          - runner: windows-11-arm
+            arch: arm64
+            archive_name: nvim-win-arm64
+    runs-on: ${{ matrix.runner }}
     steps:
       - uses: actions/checkout@v4
         with:
           # Perform a full checkout #13471
           fetch-depth: 0
       - run: .github/scripts/env.ps1
+        env:
+          BUILD_ARCH: ${{ matrix.arch }}
+      - name: Install Wix
+        run: |
+          Invoke-WebRequest -Uri "https://github.com/wixtoolset/wix3/releases/download/wix3141rtm/wix314-binaries.zip" -OutFile "wix314-binaries.zip"
+          Expand-Archive -Path "wix314-binaries.zip" -DestinationPath "C:/wix"
+          echo "C:\wix" >> $env:GITHUB_PATH
       - name: Build deps
         run: |
           cmake -S cmake.deps -B .deps -G Ninja -DCMAKE_BUILD_TYPE=${{ needs.setup.outputs.build_type }}
           cmake --build .deps
-      - name: build package
+      - name: Build package
         run: |
           cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=${{ needs.setup.outputs.build_type }}
           cmake --build build --target package
-      - uses: actions/upload-artifact@v4
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
         with:
-          name: nvim-win64
+          name: nvim-win-${{ matrix.arch }}
           path: |
-            build/nvim-win64.msi
+            build/${{ matrix.archive_name }}.zip
-            build/nvim-win64.zip
+            build/${{ matrix.archive_name }}.msi
           retention-days: 1
 
   publish:
@@ -200,6 +217,6 @@ jobs:
         run: |
           envsubst < "$GITHUB_WORKSPACE/.github/workflows/notes.md" > "$RUNNER_TEMP/notes.md"
           if [ "$TAG_NAME" != "nightly" ]; then
-            gh release create stable $PRERELEASE --notes-file "$RUNNER_TEMP/notes.md" --title "$SUBJECT" --target $GITHUB_SHA nvim-macos-x86_64/* nvim-macos-arm64/* nvim-linux-x86_64/* nvim-linux-arm64/* nvim-appimage-x86_64/* nvim-appimage-arm64/* nvim-win64/*
+            gh release create stable $PRERELEASE --notes-file "$RUNNER_TEMP/notes.md" --title "$SUBJECT" --target $GITHUB_SHA nvim-macos-x86_64/* nvim-macos-arm64/* nvim-linux-x86_64/* nvim-linux-arm64/* nvim-appimage-x86_64/* nvim-appimage-arm64/* nvim-win-x86_64/* nvim-win-arm64/*
           fi
-          gh release create $TAG_NAME $PRERELEASE --notes-file "$RUNNER_TEMP/notes.md" --title "$SUBJECT" --target $GITHUB_SHA nvim-macos-x86_64/* nvim-macos-arm64/* nvim-linux-x86_64/* nvim-linux-arm64/* nvim-appimage-x86_64/* nvim-appimage-arm64/* nvim-win64/*
+          gh release create $TAG_NAME $PRERELEASE --notes-file "$RUNNER_TEMP/notes.md" --title "$SUBJECT" --target $GITHUB_SHA nvim-macos-x86_64/* nvim-macos-arm64/* nvim-linux-x86_64/* nvim-linux-arm64/* nvim-appimage-x86_64/* nvim-appimage-arm64/* nvim-win-x86_64/* nvim-win-arm64/*

cmake.packaging/CMakeLists.txt

@@ -1,4 +1,4 @@
-if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm64|ARM64|aarch64)$")
   set(CMAKE_SYSTEM_PROCESSOR arm64)
 endif()
 
@@ -27,9 +27,13 @@ set(CPACK_RESOURCE_FILE_README ${PROJECT_SOURCE_DIR}/README.md)
 
 
 if(WIN32)
-  set(CPACK_PACKAGE_FILE_NAME "nvim-win64")
+  if(CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64")
+    set(CPACK_PACKAGE_FILE_NAME "nvim-win-arm64")
+  else()
+    set(CPACK_PACKAGE_FILE_NAME "nvim-win64")
+  endif()
+  
   set(CPACK_GENERATOR ZIP WIX)
-
   # WIX
   # CPACK_WIX_UPGRADE_GUID should be set, but should never change.
   # CPACK_WIX_PRODUCT_GUID should not be set (leave as default to auto-generate).