From d0162055842e5343bca54153f8f9ce83d969f2a3 Mon Sep 17 00:00:00 2001
From: haoyuren <13851610112@163.com>
Date: Sun, 15 Mar 2026 14:13:21 -0500
Subject: Fix MCP server in packaged app: bundle with esbuild, asarUnpack

MCP server was not included in DMG builds. Now esbuild bundles it into
a single file (out/mcp/lattex.mjs) with all dependencies inlined, and
electron-builder unpacks it from asar so external node can execute it.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 electron-builder.yml | 1 +
 package.json         | 2 +-
 src/main/index.ts    | 6 ++++--
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/electron-builder.yml b/electron-builder.yml
index 991af70..6f74aa6 100644
--- a/electron-builder.yml
+++ b/electron-builder.yml
@@ -25,6 +25,7 @@ files:
   - node_modules/binary-extensions/**/*
 asarUnpack:
   - node_modules/node-pty/**/*
+  - out/mcp/**/*
 afterPack: ./scripts/afterPack.js
 mac:
   icon: resources/icon.icns
diff --git a/package.json b/package.json
index 66f78cd..ce295d7 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "main": "./out/main/index.js",
   "scripts": {
     "dev": "electron-vite dev",
-    "build": "electron-vite build",
+    "build": "electron-vite build && npx esbuild src/mcp/lattex.mjs --bundle --platform=node --format=esm --outfile=out/mcp/lattex.mjs",
     "preview": "electron-vite preview",
     "postinstall": "electron-builder install-app-deps",
     "pack": "electron-builder --dir",
diff --git a/src/main/index.ts b/src/main/index.ts
index b6648bb..4169079 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -752,8 +752,10 @@ ipcMain.handle('ot:connect', async (_e, projectId: string) => {
     mcpPathDocMap = pathDocMap
     writeMcpState()
     // Write .mcp.json so Claude Code auto-discovers the MCP server
-    const appRoot = app.isPackaged ? join(app.getAppPath(), '..') : join(__dirname, '..', '..')
-    const mcpServerPath = join(appRoot, 'src', 'mcp', 'lattex.mjs')
+    // Dev: use source file. Packaged: use bundled file in app.asar.unpacked/out/mcp/
+    const mcpServerPath = app.isPackaged
+      ? join(app.getAppPath() + '.unpacked', 'out', 'mcp', 'lattex.mjs')
+      : join(__dirname, '..', '..', 'src', 'mcp', 'lattex.mjs')
     writeFile(join(tmpDir, '.mcp.json'), JSON.stringify({
       mcpServers: {
         lattex: {
-- 
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