[botandbang]

What and why

collection export now writes exportExt.pdb next to export.pdb, so players that read export.pdb (CDJ-3000 and older) get the collection's My Tags. A new exportExt.pdb is made from an emptied rekordbox template kept in the package (the vendored crate's MIT test file), filled with the collection's categories and tags under the ids OneLibrary gets, and its track links go through the same carry_into_ext writer convert and merge use, verification included.

Intelligent playlists are no longer left out. masterdb reads the SmartList rules (format as pyrekordbox documents it) and resolves My Tag ids. The export fills each intelligent playlist with the tracks its rules match. When a locallibrary filter can say the rules, the plan carries a smart rule for the drive, and applying the export with a store saves it limited to that drive, so smart apply keeps the playlist current. A later export takes away the rules of intelligent playlists that are gone, and never replaces a rule someone else made at the same path. Rules a filter can't say (artist, starts with, in the last N days, and a few fields filters lack) go out as the tracks they hold now, and the plan names them. Rules that can't be read stay behind, also named. A property test checks that every filter produced matches exactly what the rules match.

prep now copies the newest drive onto the others at once through the multi-drive sync when two or more need a copy and none came back from a set. A drive back from a set keeps its own pair sync, which saves the players' changes first. The multi-drive sync runs at most one target per core, through a new bounded worker helper that probe::parallel uses too.

A change planned against a store that store copy made (opened with --store) now warns first that the next store copy there will refuse it unless forced.

Changed: masterdb::tags_by_file is a free function, query::date_value is crate-visible, CollectionExportPlan has a smart field (RPC contract regenerated), and CollectionExportRecord has a smart field.

Removed: probe::parallel's own thread queue, and the TODO lines for these four items.

Fixes LOC-41
Fixes #141
Fixes LOC-63
Fixes #164
Refs LOC-40 (confirming My Tags in Track Filter on a CDJ-3000 is still to do)
Refs #140

How it was tested

• cargo fmt --check, and cargo clippy -p locallibrary -p locallibrary-cli --all-targets -- -D warnings.
• cargo nextest run -p locallibrary on the masterdb, smartlist, collection, tags, smart, probe, workers, sync, offsite, query, jobs, prep and copy tests: 381 pass. cargo nextest run -p locallibrary-cli on the store, collection, exports, rpc, command line, prep, players and output tests: 227 pass.
• Each new test was broken once and failed: the export test with ext: None, the SmartList filter property with Compare::Is as >=, the prep test with pairwise work ("one sync onto both, left: 2 right: 1"), and the store test without the warning.
• docs/rpc regenerated with cargo run -p locallibrary-cli -- rpc --emit-schema apps/locallibrary/docs/rpc.
• Not run: a real CDJ, the full suite and Windows clippy.

Checklist

• Tests cover the change
• For locallibrary: apps/locallibrary/CHANGELOG.md has a line under Unreleased, if people using it will notice
• The READMEs, docs/ and --help still say what the code does (apps/locallibrary/docs/rpc/ too, for a sidecar change)

[linear-code]

LOC-40

LOC-63

LOC-41

[github-actions]

Size

Compared with main. KiB are 1,024 bytes.

	This pull request	main	Change
Client JavaScript	679.4 KiB	679.4 KiB	0 B (0%)
Client JavaScript, brotli	225.6 KiB	225.6 KiB	0 B (0%)
Client CSS	89.6 KiB	89.6 KiB	0 B (0%)
Client CSS, brotli	12.9 KiB	12.9 KiB	0 B (0%)

[github-actions]

Rust coverage

From run 650. Both are held to the thresholds in .cargo/config.toml.

Tests	Lines	Functions	Regions
All	97.4% (83616/85851)	96.51% (13335/13817)	95.66% (183890/192230)
Hegel property tests alone	95.43% (81927/85851)	94.12% (13004/13817)	93.52% (179767/192230)

[botandbang]

Closing and reopening so CI reruns on a merge ref that includes #344's destinations test fix. Branch unchanged.