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Two correctness fixes + four doc/test polish items surfaced by the multi-agent review of #4113: 1. `killSession` → `spawnOrAttach` race (Critical). After killing the last session, `channel.kill()` runs through a 5s SIGTERM grace before SIGKILL. During that window a concurrent `spawnOrAttach` used to hit `ensureChannel`, find `channelInfo` still set, and reuse the dying transport — either landing the caller with a sessionId that 404s on every follow-up once `channel.exited` fires, or hanging until the newSession timeout. Fix: add an `isDying: boolean` flag on `ChannelInfo`, set synchronously by `killSession` / `doSpawn`-newSession-failure / `shutdown` BEFORE awaiting `channel.kill()`. `ensureChannel` treats a dying channel as absent and spawns a fresh one. The tanzhenxin BkUyD invariant ("`channelInfo` reference must outlive the kill-await for `killAllSync` mid-grace") is preserved — we set `isDying` but don't clear `channelInfo` until the OS reaps the child via `channel.exited`. A regression test in `httpAcpBridge.test.ts` pins the invariant: a never-resolving `kill()` keeps the SIGTERM grace open while a concurrent spawn verifies the factory was called twice (two distinct handles). 2. `boundWorkspace` canonicalization divergence (Critical). `server.ts` and `runQwenServe.ts` each computed `opts.workspace ?? process.cwd()` independently. The bridge canonicalized that string via `realpathSync.native` (resolving symlinks, case-folding on case-insensitive filesystems); the callers retained the raw form. On macOS HFS+ / APFS or any symlinked path, `/capabilities.workspaceCwd` advertised one spelling while the bridge enforced against another — clients echoing the advertised path back saw `POST /session` succeed but the response carry a different `workspaceCwd`. Fix: export `canonicalizeWorkspace` from `httpAcpBridge.ts` and call it once in `runQwenServe` (after the existence check) and once in `createServeApp`. Both paths land on the same canonical form; the bridge's own re-canonicalize is now a no-op (idempotent). 3. Reject `--workspace` pointing at non-existent directories at boot (Suggestion). `canonicalizeWorkspace`'s ENOENT fallback to `path.resolve` previously let the daemon boot pointed at a path that didn't exist; every `POST /session` then spawned a `qwen --acp` child with that cwd and the agent failed with an opaque ENOENT. Now `runQwenServe` `statSync`s the bound path at boot and rejects "directory does not exist" / "not a directory" with a clear message. 4. Stale docstrings (Nice to have). `types.ts` `ServeMode` JSDoc said "one `qwen --acp` child PER WORKSPACE" — directly contradicted the new `workspace` field's doc in the same file. `commands/serve.ts` `--http-bridge` description said "per workspace" — directly contradicted the `--workspace` flag's help in the same yargs builder. Both updated to "per daemon (the daemon binds to ONE workspace at boot)". 5. Stale `byWorkspace` comment references (Nice to have). `server.ts:188` ("orphaned in byId / byWorkspace") and `httpAcpBridge.test.ts:1210` ("still in byId/byWorkspace at the moment of crash") referenced the removed Map. Updated to `defaultEntry`. 6. `/capabilities` curl example in the Authentication section of `docs/users/qwen-serve.md` was missing the new `workspaceCwd` field — the Quickstart's curl example was updated but the parallel one in the auth section was not. Synced. Tests added: - `killSession marks the channel dying so concurrent spawnOrAttach gets a fresh channel` — pins fix (1). - `--workspace flows end-to-end and surfaces on /capabilities` — exercises the runQwenServe → server.ts → bridge plumbing that no prior test covered. - `rejects --workspace pointing at a non-existent directory` and `rejects --workspace pointing at a regular file` — pin fix (3). - `rejects relative --workspace at boot` — covers the absoluteness check that exists but was untested. Net: +238 / -24 across 8 files. All 149 serve tests pass. |
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| .. | ||
| configuration | ||
| extension | ||
| features | ||
| ide-integration | ||
| reference | ||
| support | ||
| _meta.ts | ||
| common-workflow.md | ||
| integration-github-action.md | ||
| integration-jetbrains.md | ||
| integration-vscode.md | ||
| integration-zed.md | ||
| overview.md | ||
| quickstart.md | ||
| qwen-serve.md | ||