Support windows arm64

Author: nielsenko

.github/workflows/binary-combine-windows.yml

@@ -0,0 +1,37 @@
+name: Windows Build Combine
+
+on:
+  workflow_call:
+
+jobs:
+  build-windows-combined:
+    name: Combine Windows binaries
+    timeout-minutes: 15
+    runs-on:  windows-latest
+    steps:
+      - name: Fetch x64 build
+        uses: actions/download-artifact@v4
+        with:
+          name: librealm-windows-x64
+          path: packages/realm_dart/binary/windows
+
+      - name: Fetch arm64 build
+        uses: actions/download-artifact@v4
+        with:
+          name: librealm-windows-arme64
+          path: packages/realm_dart/binary/windows
+
+      - name: Store combined artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: librealm-windows
+          path: packages/realm_dart/binary/windows
+          retention-days: 1
+
+      - name: Delete individual build artifacts
+        uses: geekyeggo/delete-artifact@v4
+        with:
+          name: |
+            librealm-windows-x64
+            librealm-windows-arm64
+          failOnError: false

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
     with:
       runner: windows-latest
       binary: windows
-      build: '["windows"]'
+      build: '["windows-x64", "windows-arm64"]'
 
   build-macos:
     name: Build MacOS

packages/realm_dart/CMakePresets.json

@@ -28,13 +28,22 @@
       "name": "windows",
       "inherits": "default",
       "generator": "Visual Studio 17 2022",
-      "architecture": "x64",
       "condition": {
         "lhs": "${hostSystemName}",
         "type": "equals",
         "rhs": "Windows"
       }
     },
+    {
+      "name": "windows-x64",
+      "inherits": "windows",
+      "architecture": "x64"
+    },
+    {
+      "name": "windows-arm64",
+      "inherits": "windows",
+      "architecture": "ARM64"
+    },
     {
       "name": "macos",
       "displayName": "macOS",
@@ -125,11 +134,17 @@
       "configuration": "Debug"
     },
     {
-      "name": "windows",
-      "configurePreset": "windows",
+      "name": "windows-x64",
+      "configurePreset": "windows-x64",
       "displayName": "x64",
       "configuration": "Debug"
     },
+    {
+      "name": "windows-arm64",
+      "configurePreset": "windows-arm64",
+      "displayName": "arm64",
+      "configuration": "Debug"
+    },
     {
       "name": "android-x86_64",
       "configurePreset": "android-x86_64",

packages/realm_dart/scripts/build.bat

@@ -7,5 +7,11 @@
 pushd "%~dp0.."
 echo %CD%
 
-cmake --preset windows
-cmake --build --preset windows --config MinSizeRel
+@REM only building for x64 if no arguments
+set ABIS=x64 arm64
+if [%1]==[] set ABIS=x64
+
+(for %%a in (%ABIS%) do (
+    cmake --preset windows-%%a
+    cmake --build --preset windows-%%a --config MinSizeRel
+))