`Config._dedupe_existing_paths()` drops roots whose directory does not exist
when the root list is built, so a drive that is switched off while LM starts was
not "an offline root" — it was not a root at all. The Refresh ▾ menu had no row
for it in either state, a full refresh reported nothing (its cached entries
survived only because they fall outside every configured prefix), and plugging
the drive back in changed nothing until the next restart.
* `Config` now records the configured (existence-unfiltered) paths per model
type — from ComfyUI's list in plugin mode, from the active library snapshot in
standalone mode, where the host mock filters non-existent paths itself — and
exposes them through `configured_roots_for()`.
* `ModelScanner.describe_model_roots()` appends configured-but-unavailable roots
with a live `reachable`, an `available` flag and their cached entry count, so
`/roots` (and therefore the menu) offers a row in both states: greyed while the
directory is missing, normal and clickable once it is back.
* `_reconcile_cache()` reports them as `skipped_roots` / `unavailable_paths` with
reason `root_unavailable` and counts their cached entries in `kept_unreachable`,
which is what makes the "N models kept" toast appear in the startup-offline
case. Report-only: they stay outside the scan scope, so nothing about pruning
changes. A root-scoped scan stays quiet about roots it was not asked about, and
a folder-scoped scan only mentions a missing root that holds cached entries of
that folder.
* `Config.admit_configured_roots()` re-runs the per-type prepare helpers against
the configured paths and APPENDS what is readable now (plus the
checkpoint/unet/other side maps), then refreshes the preview allowlist, so a
drive plugged in mid-session can be scanned without restarting. Append-only and
order-preserving by design: removing a root mid-session would let a later
settings save persist the loss, and re-sorting would move `*_roots[0]`, which
derives the recipes directory and the usage-stats file location. `_roots[0]`
never moves.
* `/roots` and `/scan` admit first, so `describe_model_roots()` stays a pure read
and a caller that never opens the menu (the browser extension) still gets a
drive that came back.
Verified on the sandbox with drive-Z switched off before startup: `/roots`
reports `drive-Z reachable=false available=false models=60`, a full refresh
returns `skipped_roots=[drive-Z root_unavailable]`,
`unavailable_paths=[{... kept: 60}]`, `kept_unreachable=60`, and all 432 models
stay cached. Renaming the drive back while the server runs admits it
(`available=true`) and `GET /scan?roots=<drive-Z>` walks it with no restart.
3714 passed, 7 skipped; frontend 1495 passed (149 files); vue widgets 96 passed.
The Refresh menu can scope a scan to one model root, but the folder a user is
looking at lives in the sidebar's unified tree, which merges every root into one
relative-path namespace. "Scan this folder" therefore addresses the folder, not a
root: the backend walks that relative path under every root that holds it, which
is also what makes the action safe while another drive is switched off.
Backend:
* GET /scan accepts `folder=<rel>` (alone or with `roots=`), rejected together
with full_rebuild=true like the roots parameter. Validation reuses
normalize_relative_folder(), extracted to module scope from ModelMoveService so
the folder operations and the scan endpoint reject the same input (absolute
paths, drive letters, `..` climbing) instead of each carrying its own copy.
* The reconcile summary carries `scope_label` (the folder) for a folder scope, so
the result toast names the folder the user clicked instead of the roots it
happens to live under; the completed WS payload carries it too.
* `folder` is a scope prefix exactly like a root: only that subtree is re-read or
pruned, and an unreachable root keeps the entries that fall inside it.
Frontend:
* The sidebar folder context menu gains "Scan this folder" above "Check for
updates in this folder" (they share the refresh divider); the entry is gated by
the same supportsFolderManagement flag as the other folder operations.
* SidebarManager.scanFolder() resolves the node through the existing
_resolveFolderCandidates() before doing anything: a folder no root holds any
more explains itself ("no longer exists on disk") instead of scanning nothing,
and an unresolvable multi-root node is refused rather than guessed.
* PageControls.refreshModels() and BaseModelApi.refreshModels() forward the folder
scope, and _showRefreshSummary() prefers scope_label over the walked roots.
Verified live on the three-root sandbox with one drive switched off:
GET /scan?folder=pack000 walks drive-G and drive-Y, reports scope_label=pack000,
keeps drive-Z's 6 entries under that folder (kept_unreachable=6) and leaves all
420 models cached. 3704 passed, 7 skipped; frontend 1495 passed (150 files); vue
widgets 96 passed. The 2 new sidebar keys are [TODO: Translate] placeholders
pending the feature owner's go-ahead.
Refreshing had no way to say "scan only this drive": a user with three external
drives had to spin all of them up for every refresh, and switching a drive off
made the next refresh treat its whole library as deleted (rows pruned from the
memory cache and the SQLite cache, preview_url stripped on the next scroll).
Backend (py/services/model_scanner.py, py/config.py):
* ReconcileScope(roots, folder) + _reconcile_cache(scope=...): files inside the
scope reconcile normally, everything outside is neither re-read nor removed.
The folder half is plumbing for the sidebar entry in the next change.
* Path-level pruning guard: cached entries under a path this walk could not
read are kept and reported instead of removed. Sources: a configured root that
is not reachable (drive switched off while LM runs), a directory os.walk
failed to enter (permissions / I/O error / Windows junction to an offline
drive), and a known first-level symlink whose target is gone
(Config.iter_path_mappings()).
* The recorded folder list is unioned instead of replaced whenever the scan did
not verify every root, so a scoped scan cannot empty the sidebar.
* _reconcile_cache returns a summary (added / removed / repaired /
scanned_roots / skipped_roots / unavailable_paths / kept_unreachable),
exposed as ModelScanner.last_reconcile_summary, returned by
BaseModelService.scan_models() and broadcast in the completed WS payload.
* _root_display_labels(): set-aware labels ("G: loras", "usb/loras") grown
leftwards with real parent segments until unique, shared by the walk-progress
line and the roots API.
* GET /scan accepts repeated `roots` (400 for unknown roots, 400 combined with
full_rebuild=true); GET /roots gains root_details (label / reachable / cached
count) while `roots` stays a plain path list for existing callers.
* serve_preview: a 404 no longer clears the cached preview_url when the file's
own directory is unreachable - browsing the grid with a drive off used to
strip preview references from the persistent cache.
Frontend:
* Refresh ▾ gains a "Scan one folder" section listing the page's roots with
their cached counts; offline roots stay clickable and explain themselves; rows
are wired by delegation (new static/js/components/controls/ScanScopeMenu.js).
* A scoped scan reports "Scanned <root>: N new, M removed"; a scan that kept
entries reports "<N> models kept: <paths> not reachable".
* registerAPI() now injects the two cross-page passthroughs (fetchModelRoots and
an argument-forwarding refreshModels) so a page facade cannot drop them: the
first version rendered an empty menu and would have run a full refresh.
* createToastElement whitelists toast types, so a wrong `type` argument degrades
to the info style instead of rendering an unstyled box.
Verified in a sandbox instance with three roots: a scoped scan walks only the
requested root (progress roots=0/1, 240 files); a full refresh with one root
offline reports kept_unreachable=60 and leaves all 420 models cached; /roots
reports the offline root with its cached count. 3699 passed, 7 skipped;
frontend 1488 passed (148 files); vue widgets 96 passed.
Fix ~790 basedpyright errors across the test suite:
- Type stub subclasses of real production classes with super().__init__()
- Add missing generic type arguments and Dict[str, Any] annotations
- Add None guards before subscript/member access
- Adapt tests to production API changes (removed dead handlers,
PersistentModelCache.get_default, _i18n_filter_added location)
Will Miao