From 6c42eaaae298625c72458b78c9516a6f383968f6 Mon Sep 17 00:00:00 2001
From: Bin Deng <dengbin@romangic.com>
Date: Wed, 4 Mar 2026 01:36:57 +0800
Subject: [PATCH] fix(build): add WSL detection to bundle-a2ui.sh

---
 scripts/bundle-a2ui.sh | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/scripts/bundle-a2ui.sh b/scripts/bundle-a2ui.sh
index 3278e1d35a3..835c9a47ee7 100755
--- a/scripts/bundle-a2ui.sh
+++ b/scripts/bundle-a2ui.sh
@@ -24,6 +24,21 @@ if [[ ! -d "$A2UI_RENDERER_DIR" || ! -d "$A2UI_APP_DIR" ]]; then
   exit 1
 fi
 
+# WSL detection: when pnpm runs "bash" on Windows it resolves to WSL
+# (C:\Windows\System32\bash.exe), where native Node.js is typically absent.
+# The pnpm wrappers for tsc/rolldown also invoke node internally, so the
+# entire build pipeline fails. Use the prebuilt bundle when available;
+# otherwise guide the user to build outside WSL where Windows node is on PATH.
+if grep -qi microsoft /proc/version 2>/dev/null; then
+  if [[ -f "$OUTPUT_FILE" ]]; then
+    echo "WSL detected; using prebuilt A2UI bundle."
+    exit 0
+  fi
+  echo "WSL environment detected but no prebuilt bundle found at: $OUTPUT_FILE" >&2
+  echo "Build outside WSL first (e.g. Git Bash): pnpm canvas:a2ui:bundle" >&2
+  exit 1
+fi
+
 INPUT_PATHS=(
   "$ROOT_DIR/package.json"
   "$ROOT_DIR/pnpm-lock.yaml"