程序员阿江(Relakkes) 3c5549e221 experiment(desktop): merge server + cli into one sidecar binary
Replaces the two ~65MB bun-compiled sidecar binaries with a single
~66MB merged binary. The bun runtime + shared dependency code (anthropic
SDK, MCP SDK, ws, undici, etc) was previously duplicated across both —
merging eliminates that duplication entirely.

Combined with the previous P0 commit (static-import inlining + drop
src/ + node_modules/ from Resources), this brings the macOS .app from
the original 435MB baseline down to 87MB (-80%), and the DMG from 113MB
to 37MB (-67%).

Final breakdown of the 87MB .app:
  Contents/MacOS/claude-sidecar         66MB   (was 57+57=114MB)
  Contents/MacOS/claude-code-desktop    18MB   (Tauri Rust main)
  Contents/Resources/icon.icns           2MB
  + plist + frameworks                  ~1MB

This is essentially the floor — bun runtime + Tauri main + minimum
overhead. Going lower would require swapping toolchains.

Implementation
==============

* desktop/sidecars/claude-sidecar.ts (new): single entrypoint that
  takes a positional mode argument ("server" or "cli") then dispatches
  via `await import('../../src/server/index.ts').startServer()` or
  `await import('../../src/entrypoints/cli.tsx')`. Same env / argv setup
  pattern as the old launchers.
* desktop/sidecars/server-launcher.ts + cli-launcher.ts: deleted.
* desktop/scripts/build-sidecars.ts: compiles only claude-sidecar now.
* desktop/src-tauri/tauri.conf.json: externalBin → ["binaries/claude-sidecar"]
* desktop/src-tauri/src/lib.rs: spawns sidecar with leading "server"
  positional arg.
* src/server/services/conversationService.ts resolveBundledCliPath /
  resolveCliArgs: when current process is claude-sidecar, reuses the
  same exe and spawns it with leading "cli" positional arg. Backward
  compat path for old claude-server / claude-cli pair preserved for the
  bin/claude-haha dev mode.

Verification
============

* claude-sidecar cli --version → 999.0.0-local (Claude Code) ✓
* claude-sidecar cli --help → full Commander spec ✓
* claude-sidecar server --port N → HTTP listening, CronScheduler running ✓
* All three above run in /tmp with no src/ or node_modules/ on disk
* bun test on src/ → 358 pass / 45 fail / 1 error, identical to baseline
  (44 fails are pre-existing on main, unrelated to this change)
* Full DMG round-trip via build-macos-arm64.sh succeeds; new .app
  installs cleanly in /Volumes/

Bundle size summary (vs original baseline)
==========================================

  metric              baseline   final      delta
  .app total          435 MB     87 MB      -348 MB (-80%)
  .dmg                113 MB     37 MB      -76 MB  (-67%)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-12 00:10:47 +08:00
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