chore(🗿): fix graphite build(#3451)

Author: wcandillon

packages/skia/scripts/build-skia.ts

@@ -1,7 +1,9 @@
 import { exit } from "process";
+import path from "path";
 
 import type { Platform, PlatformName } from "./skia-configuration";
 import {
+  applyGraphiteSkiaPatches,
   commonArgs,
   configurations,
   copyHeaders,
@@ -279,6 +281,22 @@ const buildXCFrameworks = () => {
   process.chdir(SkiaSrc);
   $("PATH=../depot_tools/:$PATH python3 tools/git-sync-deps");
   console.log("gclient sync done");
+  if (GRAPHITE) {
+    console.log("Applying Graphite patches...");
+    $(`git reset --hard HEAD`);
+
+    // Apply arm64e simulator patch
+    const arm64ePatchFile = path.join(__dirname, "dawn-arm64e-simulator.patch");
+    $(`cd ${SkiaSrc} && git apply ${arm64ePatchFile}`);
+
+    // Fix Dawn ShaderModuleMTL.mm uint32 typo if it exists
+    const shaderModuleFile = `${SkiaSrc}/third_party/externals/dawn/src/dawn/native/metal/ShaderModuleMTL.mm`;
+    $(
+      `sed -i '' 's/uint32(bindingInfo\\.binding)/uint32_t(bindingInfo.binding)/g' ${shaderModuleFile}`
+    );
+
+    console.log("Patches applied successfully");
+  }
   $(`rm -rf ${PackageRoot}/libs`);
 
   // Build specified platforms and targets

packages/skia/scripts/dawn-arm64e-simulator.patch

@@ -0,0 +1,32 @@
+From e34f6eaae468d0499b544815f67a73c6f75e9d56 Mon Sep 17 00:00:00 2001
+From: William Candillon <[email protected]>
+Date: Sat, 18 Oct 2025 18:45:06 +0200
+Subject: [PATCH] Remove unavailable platform on simulator
+
+---
+ gn/skia/BUILD.gn | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/gn/skia/BUILD.gn b/gn/skia/BUILD.gn
+index 8e42db771b..30048a1d43 100644
+--- a/gn/skia/BUILD.gn
++++ b/gn/skia/BUILD.gn
+@@ -199,9 +199,13 @@ config("default") {
+       _arch_flags = [
+         "-arch",
+         "arm64",
+-        "-arch",
+-        "arm64e",
+       ]
++      if (!ios_use_simulator) {
++        _arch_flags += [
++          "-arch",
++          "arm64e",
++        ]
++      }
+     } else if (current_cpu == "x86") {
+       _arch_flags = [
+         "-arch",
+-- 
+2.42.0
+