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

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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.
This commit is contained in:
Jim Liu 宝玉
2026-05-24 17:00:31 -05:00
parent 460bd087c6
commit 3cc1225b18
6 changed files with 1266 additions and 0 deletions
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README.md
+37
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@@ -1154,6 +1154,43 @@ Summarize WeChat group chat highlights into a structured digest. Extracts topics
- Normal and roast (毒舌) digest versions
- Profile backfill from historical digests
#### baoyu-electron-extract
Extract 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 the minified JS/CSS with Prettier in place. Always skips `node_modules`. Works on macOS and Windows; pass `--asar <path>` on other platforms.
```bash
# Extract by app name (default output: ~/Downloads/Codex-electron-extract/)
/baoyu-electron-extract Codex
# Extract by absolute path (.app bundle, install dir, or .asar file)
/baoyu-electron-extract "/Applications/Visual Studio Code.app"
/baoyu-electron-extract --asar /Applications/Codex.app/Contents/Resources/app.asar Codex
# Custom output directory
/baoyu-electron-extract Codex --output ~/work/codex-source
# Preview discovery without writing anything
/baoyu-electron-extract Codex --dry-run
# Overwrite an existing output directory
/baoyu-electron-extract Codex --force
```
**Options**:
| Option | Description | Default |
|--------|-------------|---------|
| `<app>` | App name or absolute path (required unless `--asar`) | — |
| `--output`, `-o` | Output directory | `~/Downloads/<AppName>-electron-extract` |
| `--asar` | Override the resolved `.asar` path | auto-discovered |
| `--force`, `-f` | Allow writing into a non-empty existing output dir | false |
| `--skip-format` | Skip Prettier formatting | false |
| `--skip-restore` | Skip source-map restoration | false |
| `--no-unpacked` | Don't copy `app.asar.unpacked/` alongside | false |
| `--dry-run` | Print resolved paths and exit without writing | false |
| `--json` | Emit one JSON-line summary on stdout | false |
**Output layout**: `extract-report.json` (counts, warnings, paths), `extracted/` (raw asar, formatted in place when no map), `extracted.unpacked/` (native modules if present), and `restored/` (rebuilt source tree from `.js.map` files).
## Environment Configuration
Some skills require API keys or custom configuration. Environment variables can be set in `.env` files: