feat(baoyu-electron-extract): add new skill to extract Electron app sources

Extracts resources and JavaScript from any installed Electron app's app.asar. When .js.map files embed sourcesContent, restores the original source tree (TypeScript/JSX included); otherwise formats minified JS/CSS with Prettier in place. Always skips node_modules and webpack/runtime/* entries. Source-map paths are resolved relative to each .js.map file first, so bundler-relative entries like ../../src/main.ts restore to readable paths under restored/ instead of hashed placeholders. Auto-discovers apps on macOS (/Applications, ~/Applications) and Windows (%LOCALAPPDATA%\Programs, %PROGRAMFILES%, %PROGRAMFILES(X86)%, %APPDATA%). On other platforms pass --asar <path> explicitly. Safety: refuses to write to /, the user home, or the current working directory, and refuses non-empty existing output dirs without --force.
2026-07-31 14:19:47 +08:00 · 2026-05-24 17:00:31 -05:00
parent 460bd087c6
commit 3cc1225b18
6 changed files with 1266 additions and 0 deletions
@@ -0,0 +1,123 @@
+import assert from "node:assert/strict";
+import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import test from "node:test";
+
+import { normalizeSourcePath, restoreFromMap } from "./main.ts";
+
+test("normalizes Vite source map paths into readable project paths", () => {
+  const extractedRoot = path.join(os.tmpdir(), "app", "extracted");
+  const mapPath = path.join(extractedRoot, ".vite", "main", "index.js.map");
+
+  assert.equal(
+    normalizeSourcePath(
+      "../../src/main/agent/claude-agent.ts",
+      mapPath,
+      extractedRoot,
+      undefined
+    ),
+    "src/main/agent/claude-agent.ts"
+  );
+
+  assert.equal(
+    normalizeSourcePath(
+      "../../../shared/src/lib/prompt-classification.ts",
+      mapPath,
+      extractedRoot,
+      undefined
+    ),
+    "shared/src/lib/prompt-classification.ts"
+  );
+
+  assert.equal(
+    normalizeSourcePath(
+      "./src/renderer/app.tsx",
+      mapPath,
+      extractedRoot,
+      "webpack://moss/"
+    ),
+    "moss/src/renderer/app.tsx"
+  );
+});
+
+test("restores source map sources without hashing usable relative paths", async () => {
+  const root = await mkdtemp(path.join(os.tmpdir(), "baoyu-electron-extract-"));
+  try {
+    const extractedRoot = path.join(root, "extracted");
+    const restoredRoot = path.join(root, "restored");
+    const mapDir = path.join(extractedRoot, ".vite", "main");
+    const mapPath = path.join(mapDir, "index.js.map");
+    await mkdir(mapDir, { recursive: true });
+    await writeFile(
+      mapPath,
+      JSON.stringify({
+        version: 3,
+        file: "index.js",
+        sources: [
+          "../../src/main.ts",
+          "../../src/common/ipcChannels.ts",
+          "../../../shared/src/lib/prompt-classification.ts",
+          "webpack://moss/./src/renderer/app.tsx",
+          "../../../../node_modules/pkg/index.js",
+          "..\\..\\node_modules\\windows-pkg\\index.js",
+          "webpack/runtime/chunk loading",
+        ],
+        sourcesContent: [
+          "export const main = true;\n",
+          "export const ipc = true;\n",
+          "export const shared = true;\n",
+          "export const renderer = true;\n",
+          "module.exports = {};\n",
+          "module.exports = {};\n",
+          "runtime();\n",
+        ],
+      }),
+      "utf8"
+    );
+
+    const warnings: string[] = [];
+    const restored = restoreFromMap(
+      mapPath,
+      extractedRoot,
+      restoredRoot,
+      warnings
+    );
+
+    assert.equal(restored, 4);
+    assert.deepEqual(warnings, []);
+    assert.equal(
+      await readFile(path.join(restoredRoot, "src", "main.ts"), "utf8"),
+      "export const main = true;\n"
+    );
+    assert.equal(
+      await readFile(
+        path.join(restoredRoot, "src", "common", "ipcChannels.ts"),
+        "utf8"
+      ),
+      "export const ipc = true;\n"
+    );
+    assert.equal(
+      await readFile(
+        path.join(
+          restoredRoot,
+          "shared",
+          "src",
+          "lib",
+          "prompt-classification.ts"
+        ),
+        "utf8"
+      ),
+      "export const shared = true;\n"
+    );
+    assert.equal(
+      await readFile(
+        path.join(restoredRoot, "moss", "src", "renderer", "app.tsx"),
+        "utf8"
+      ),
+      "export const renderer = true;\n"
+    );
+  } finally {
+    await rm(root, { recursive: true, force: true });
+  }
+});