Re-uploading a partially-uploaded folder used to surface hundreds of spurious
"already exists" failures, and a file the watchdog aborted (or one the server
committed just before the client gave up) was lost.
Backend — save_file_with_blob_impl (the shared write path for both plain and
by-hash uploads): on a name conflict (23505), if the existing non-trashed file
holds byte-identical content (same folder, same name, same blob hash), return
that file as success instead of erroring. A different-content clash still
conflicts. Re-upload / re-sync becomes a clean no-op for everything already
stored — only the genuinely missing files transfer.
Frontend — uploadWithRetry: each file gets one automatic retry on a transient
failure (quota is never retried). With backend idempotency, retrying an
already-stored file is an instant no-op and a stalled/aborted file gets a real
second chance, so a folder upload self-completes instead of leaving gaps.
cargo test: 448 passed. npm run check: clean, 58 tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
DioCrafts
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