preview_url was assembled from a /api/view link whose type was chosen by
matching the asset's tags against "input" then "output". Anything written
anywhere else - temp above all, where preview nodes put their images - fell
off the end of that chain and came back with no preview at all. Tags are
user-editable, so removing one also silently destroyed the URL.
Derive the URL from where the file actually sits instead. That covers every
root /api/view serves, temp included, and no longer depends on tags or on a
filename in user_metadata. A file outside those roots, or content no client
can render from its own bytes, gets no preview URL rather than one that
cannot work.
Nominated previews are resolved a page at a time rather than per row, so a
list costs one extra query however long it is. A preview that is soft-deleted
or not visible to the caller drops out of that lookup and is no longer
advertised.
Co-authored-by: guill <jacob.e.segal@gmail.com>
* Keep temp-directory assets visible while their files exist
Assets written to the temp directory were flagged as missing and dropped
from GET /api/assets, even with the file sitting on disk. One list of
directories was answering two different questions -- where the scanner
looks for new files, and which files ComfyUI considers its own -- and
temp belongs only in the second, so every temp reference was disowned by
the prune that runs at startup and on POST /api/assets/prune.
Ownership now covers temp. Discovery still does not: the temp directory
is wiped before the scan runs, and assets written there are already
registered with a hash, mime type and dimensions, so walking it would
find nothing. Temp references are instead reconciled against the
filesystem directly, so a temp file that really is gone is still retired
rather than lingering as a broken entry.
get_prefixes_for_root becomes get_scan_prefixes_for_root so the two
questions are told apart by name rather than by comment.
* Cover the unhashed temp asset in the reconciliation tests
The existing temp tests all registered hashed assets, so they never
exercised the path an unhashed asset takes when its file is gone: the
orphaned rows are removed rather than kept as missing, exactly as under
any other root.
* Stop adding an opaque alpha channel to API node images
bytesio_to_image_tensor converted every downloaded image to RGBA, so nodes
whose API returns no transparency still emitted a 4 channel IMAGE. Keep the
alpha when the decoded image has one, stay RGB when it does not.
---------
Signed-off-by: bigcat88 <bigcat88@icloud.com>
Co-authored-by: bigcat88 <bigcat88@icloud.com>
