Files
deepseek-harness/packages/host/directory-picker-browse
creatixchu 53240f4664 fix(host,client): abort superseded listings on the wire; keep the native swap resolvable
Supersession (newer navigation, path editing, closing, unmount) now
aborts the in-flight listing's request instead of only discarding its
result: the browser mints an AbortController per listing, the signal
rides the workspace face (IWorkspaces.listDirectory gains an optional
signal) onto the fetch carrier, and the Host scan stops with it (817's
cancellation chain). apps/cli keeps both picker packages as dependencies
so the documented one-row cordis.yml swap to the native backend resolves
at boot.
2026-07-29 06:19:18 +08:00
..

@deepseek-ai/dsh-host-directory-picker-browse

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The in-app browsing backend of the directory-picker seam: BrowseDirectoryPicker registers ctx.directoryPicker with the browse capability — one-level directory listing and child-directory creation over Node's stdlib, which already carries the per-OS adaptation. Nothing renders on the host display, so this backend serves remote clients the native backend cannot.

Behavior facts: listings return directories only, name-sorted, with symlinks-to-directories followed (broken/cyclic links skipped — the probe stat failing means "not enterable") and a host-owned hidden flag (POSIX dot convention) left for the client to act on; crumbs is the root-to-target ancestor chain, the root crumb labeled by its full path (/, C:\); an absent list path means the host account's home directory. createDirectory is non-recursive (a missing parent is a real failure, not a level to invent) and validates the name as a single non-blank segment even when called directly, mirroring the wire schema's fence. Both primitives reject an explicit path that is not fully qualified — relative forms, and on Windows the rooted drive-less forms (\foo, /foo) and incomplete UNC prefixes (\\, \\server) that isAbsolute accepts — with directory-unreadable/directory-create-failed, instead of letting resolve rebase it under the host process cwd or current drive. One list call returns at most maxEntries rows (config, default 1000 — the bound GitHub's web UI applies to directory listings), and the level streams through a bounded window so memory stays O(maxEntries) no matter how many children the directory holds: a cut level keeps the name-sorted head, counts hidden rows against the bound, probes only windowed candidates, and reports truncated: true so the client can say the level is incomplete (a windowed broken symlink is not backfilled from beyond the window — the eviction already marks the level truncated); window insertion is binary with an O(1) full-window tail rejection, and list threads the caller's AbortSignal so a disconnect or timeout stops the scan instead of letting it outlive the caller. Failures throw the seam's typed DirectoryPickerError. Policy rationale: the directory-picker capability seam Agent Note.

Dual-face package: the browser half (./client) fills ui-workspace's two directory-flow holes with the in-app Select Workspace Directory dialog (figma Harness 813-23126 family — Miller two-column view, breadcrumb with a click-to-edit path zone, nested New-folder dialog), driving host.listDirectory/host.createDirectory and registering its own locale namespace (directory-browser, zh default / en). One cordis.yml row therefore composes both sides of the browse interaction; the client carries no capability-kind branching, and mounting a second flow package fails at load (the holes are single kind).

Model Experience

None, as the backend serves the GUI host's directory selection; nothing here reaches a model request.

KV Cache effect

None; this package neither assembles nor sends a provider request.

Known Limitations and Deferred Work

  • Windows hidden attribute is not read — Node dirents do not expose FILE_ATTRIBUTE_HIDDEN, so hidden means dot-prefixed on every platform until a native probe is worth its cost.
  • No drive-root enumeration — on Windows the ancestry stops at the drive root; crossing drives waits for the browser UI's path-entry affordance rather than an enumeration primitive here.
  • Whole-filesystem scope — no per-deployment browse-root restriction; workspace.create accepts arbitrary paths today, so a root here would be UX scoping, not a boundary — deferred until a deployment needs it.