diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..30cf57e --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,10 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Ignored default folder with query files +/queries/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/breadarr.iml b/.idea/breadarr.iml new file mode 100644 index 0000000..f2b3868 --- /dev/null +++ b/.idea/breadarr.iml @@ -0,0 +1,13 @@ + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 0000000..393ed2f --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..35eb1dd --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/Cargo.lock b/Cargo.lock index 0ab0e3c..e1300da 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -162,9 +162,9 @@ checksum = "2af50177e190e07a26ab74f8b1efbfe2ef87da2116221318cb1c2e82baf7de06" [[package]] name = "bitflags" -version = "2.13.0" +version = "2.13.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8" +checksum = "b588b76d00fde79687d7646a9b5bdf3cc0f655e0bbd080335a95d7e96f3587da" [[package]] name = "block-buffer" @@ -177,7 +177,7 @@ dependencies = [ [[package]] name = "bread-onnx" -version = "0.2.3" +version = "0.3.0" dependencies = [ "anyhow", "bread-utils", @@ -191,7 +191,7 @@ dependencies = [ [[package]] name = "bread-utils" -version = "0.2.3" +version = "0.3.0" dependencies = [ "dirs", "serde", @@ -285,9 +285,9 @@ dependencies = [ [[package]] name = "cc" -version = "1.2.66" +version = "1.3.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f5d6cac793997bd970000024b2934968efe83b382de4fdcf4fcb46b6ee4ad996" +checksum = "c89588d05638b5b4594a3348a2d6c20277e43a7f5c5202b05cc56888475a47b8" dependencies = [ "find-msvc-tools", "shlex", @@ -301,9 +301,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801" [[package]] name = "cfg_aliases" -version = "0.2.1" +version = "0.2.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724" +checksum = "f079e83a288787bcd14a6aea84cee5c87a67c5a3e660c30f557a3d24761b3527" [[package]] name = "chrono" @@ -858,36 +858,36 @@ dependencies = [ [[package]] name = "futures-channel" -version = "0.3.32" +version = "0.3.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "07bbe89c50d7a535e539b8c17bc0b49bdb77747034daa8087407d655f3f7cc1d" +checksum = "262590f4fe6afeb0bc83be1daa64e52657fe185690a958af7f3ad0e92085c5ae" dependencies = [ "futures-core", ] [[package]] name = "futures-core" -version = "0.3.32" +version = "0.3.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d" +checksum = "2cd50c473c80f6d7c3670a752354b8e569b1a7cbfdc0419ec88e5edad85e0dc7" [[package]] name = "futures-sink" -version = "0.3.32" +version = "0.3.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c39754e157331b013978ec91992bde1ac089843443c49cbc7f46150b0fad0893" +checksum = "e34418ac499d6305c2fb5ad0ed2f6ac998c5f8ca209b4510f7f94242c647e307" [[package]] name = "futures-task" -version = "0.3.32" +version = "0.3.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "037711b3d59c33004d3856fbdc83b99d4ff37a24768fa1be9ce3538a1cde4393" +checksum = "b231ed28831efb4a61a08580c4bc233ec56bc009f4cd8f52da2c3cb97df0c109" [[package]] name = "futures-util" -version = "0.3.32" +version = "0.3.33" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "389ca41296e6190b48053de0321d02a77f32f8a5d2461dd38762c0593805c6d6" +checksum = "a77a90a256fce34da66415271e30f94ee91c57b04b8a2c042d9cf3220179deaa" dependencies = [ "futures-core", "futures-task", @@ -1055,9 +1055,9 @@ dependencies = [ [[package]] name = "http-body" -version = "1.0.1" +version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1efedce1fb8e6913f23e0c92de8e62cd5b772a67e7b3946df930a62566c93184" +checksum = "ca2a8f2913ee65f60facd6a5905613afaa448497a0230cc41ce022d93290bc2c" dependencies = [ "bytes", "http", @@ -1065,9 +1065,9 @@ dependencies = [ [[package]] name = "http-body-util" -version = "0.1.3" +version = "0.1.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b021d93e26becf5dc7e1b75b1bed1fd93124b374ceb73f43d4d4eafec896a64a" +checksum = "e9f41fd6a08e4d4ec69df65976da761afd5ad5e58a9d4acb46bd1c953a9e3ff2" dependencies = [ "bytes", "futures-core", @@ -1524,9 +1524,9 @@ checksum = "0e7465ac9959cc2b1404e8e2367b43684a6d13790fe23056cc8c6c5a6b7bcb94" [[package]] name = "matrixmultiply" -version = "0.3.10" +version = "0.3.11" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a06de3016e9fae57a36fd14dba131fccf49f74b40b7fbdb472f96e361ec71a08" +checksum = "3f607c237553f086e7043417a51df26b2eb899d3caff94e6a67592ff992fedc7" dependencies = [ "autocfg", "rawpointer", @@ -1572,9 +1572,9 @@ dependencies = [ [[package]] name = "mio" -version = "1.2.1" +version = "1.2.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "02bd0af71c67b473010cbbc60715ee815645a4dc942899111f494b4b737d6fda" +checksum = "30d65c71f1ce40ab09135ce117d742b9f8a19ff91a41a8b57ed50bc2de59c427" dependencies = [ "libc", "log", @@ -1955,9 +1955,9 @@ checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e" [[package]] name = "portable-atomic" -version = "1.13.1" +version = "1.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c33a9471896f1c69cecef8d20cbe2f7accd12527ce60845ff44c153bb2a21b49" +checksum = "3d20d5497ef88037a52ff98267d066e7f11fcc5e99bbfbd58a42336193aacec3" [[package]] name = "portable-atomic-util" @@ -2192,9 +2192,9 @@ dependencies = [ [[package]] name = "regex" -version = "1.13.0" +version = "1.13.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2a0e75113e14dc5acb068cd0786884f214f1312650a3d36d269f5c4f3cdee8a2" +checksum = "f020237b6c8eed93db2e2cb53c00c60a8e1bc73da7d073199a1180401450218d" dependencies = [ "aho-corasick", "memchr", @@ -2204,9 +2204,9 @@ dependencies = [ [[package]] name = "regex-automata" -version = "0.4.15" +version = "0.4.16" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1f388202e4b80542a0921078cc23b6333bcf1409c1e3f86404cae4766a6131db" +checksum = "8fcfdb36bda0c880c5931cdc7a2bcdc8ba4556847b9d912bca70bc94708711ad" dependencies = [ "aho-corasick", "memchr", @@ -2319,9 +2319,9 @@ dependencies = [ [[package]] name = "rustls" -version = "0.23.41" +version = "0.23.42" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6b92b125634d9b795e7beca796cc790df15a7fb38323bf3196fda83292d06b1f" +checksum = "3c54fcab019b409d04215d3a17cb438fd7fbf192ee61461f20f4fe18704bc138" dependencies = [ "log", "once_cell", @@ -2610,9 +2610,9 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90" [[package]] name = "socket2" -version = "0.6.4" +version = "0.6.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "52d1cfed4120b4d927bf7c0f86d2087a4a7d6027c906d9f9d525a80573b9be51" +checksum = "c3d1e2c7f27f8d4cb10542a02c49005dbd6e93095799d6f3be745fae9f8fedd4" dependencies = [ "libc", "windows-sys 0.61.2", @@ -2714,9 +2714,9 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292" [[package]] name = "syn" -version = "2.0.118" +version = "2.0.119" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1b9ae57f904213ebb649ce6895b8a66c66f0203b9319718f69a5612a065b1422" +checksum = "872831b642d1a07999a962a351ed35b955ea2cfc8f3862091e2a240a84f17297" dependencies = [ "proc-macro2", "quote", @@ -2913,9 +2913,9 @@ dependencies = [ [[package]] name = "tokio" -version = "1.52.3" +version = "1.53.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8fc7f01b389ac15039e4dc9531aa973a135d7a4135281b12d7c1bc79fd57fffe" +checksum = "d988bcd52dbe076d3d46903332f58c912b87a2c49b1428419a5845154762ffee" dependencies = [ "bytes", "libc", @@ -2930,9 +2930,9 @@ dependencies = [ [[package]] name = "tokio-macros" -version = "2.7.0" +version = "2.7.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "385a6cb71ab9ab790c5fe8d67f1645e6c450a7ce006a33de03daa956cf70a496" +checksum = "6328af13490e73a9b4694030fafd93f8c8c6a9dede33e821c3fc63eddf8042ba" dependencies = [ "proc-macro2", "quote", @@ -3398,9 +3398,9 @@ dependencies = [ [[package]] name = "webpki-root-certs" -version = "1.0.8" +version = "1.0.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0d46a5a140e6f7afeccd8eae97eff335163939eac8b929834875168b29b3d267" +checksum = "b96554aa2acc8ccdb7e1c9a58a7a68dd5d13bccc69cd124cb09406db612a1c9b" dependencies = [ "rustls-pki-types", ] @@ -3411,14 +3411,14 @@ version = "0.26.11" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "521bc38abb08001b01866da9f51eb7c5d647a19260e00054a8c7fd5f9e57f7a9" dependencies = [ - "webpki-roots 1.0.8", + "webpki-roots 1.0.9", ] [[package]] name = "webpki-roots" -version = "1.0.8" +version = "1.0.9" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bf85cb06032201fa7c6f829d7db5a7e5aa45bcc0655327713065f6f0576731bf" +checksum = "7dcd9d09a39985f5344844e66b0c530a33843579125f23e21e9f0f220850f22a" dependencies = [ "rustls-pki-types", ] @@ -3798,6 +3798,6 @@ dependencies = [ [[package]] name = "zmij" -version = "1.0.21" +version = "1.0.23" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b8848ee67ecc8aedbaf3e4122217aff892639231befc6a1b58d29fff4c2cabaa" +checksum = "29666d0abbfad1e3dc4dcf6144730dd3a3ab225bbbdac83319345b1b44ccfc1b" diff --git a/breadarr-shared/Cargo.toml b/breadarr-shared/Cargo.toml index 5900351..91a9a26 100644 --- a/breadarr-shared/Cargo.toml +++ b/breadarr-shared/Cargo.toml @@ -10,4 +10,4 @@ toml.workspace = true reqwest.workspace = true chrono.workspace = true # TODO(owner): switch to tag-pinned git dependency once bread-utils is merged and tagged, matching the bread-theme pattern -bread-utils = { path = "../../bread-ecosystem-fix-worktree/bread-utils" } +bread-utils = { path = "../../bread-ecosystem/bread-utils" } diff --git a/breadarrd/Cargo.toml b/breadarrd/Cargo.toml index c6754c4..af3d900 100644 --- a/breadarrd/Cargo.toml +++ b/breadarrd/Cargo.toml @@ -20,7 +20,7 @@ serde_json.workspace = true ort.workspace = true tokenizers.workspace = true # TODO(owner): switch to tag-pinned git dependency once bread-onnx is merged and tagged, matching the bread-theme pattern -bread-onnx = { path = "../../bread-ecosystem-fix-worktree/bread-onnx" } +bread-onnx = { path = "../../bread-ecosystem/bread-onnx" } scraper.workspace = true chrono.workspace = true fastrand.workspace = true diff --git a/breadarrd/src/importer/mod.rs b/breadarrd/src/importer/mod.rs index d649645..779c3ba 100644 --- a/breadarrd/src/importer/mod.rs +++ b/breadarrd/src/importer/mod.rs @@ -218,6 +218,15 @@ pub(crate) fn walk_files(dir: &Path) -> Result> { Ok(out) } +/// TV episode files live under a `Season NN` subfolder of the show's +/// `root_folder`, matching the layout Jellyfin/Sonarr/library-scan already +/// use — episodes imported flat into the show root previously left new +/// grabs sitting alongside, rather than inside, the season structure that +/// pre-existing library files were organized into. +pub(crate) fn season_dir(root_folder: &str, season_number: u32) -> PathBuf { + Path::new(root_folder).join(format!("Season {season_number:02}")) +} + pub(crate) fn deterministic_filename( series_title: &str, season: u32, @@ -1533,7 +1542,7 @@ fn import_one(conn: &Connection, grab: &PendingGrab, content_path: &Path) -> Res // clean import below, same as an already-English-default file. } - let (root_folder, filename, episode_id) = match grab { + let (dest_dir, filename, episode_id) = match grab { PendingGrab::Episode { series_title, season_number, @@ -1550,7 +1559,8 @@ fn import_one(conn: &Connection, grab: &PendingGrab, content_path: &Path) -> Res episode_title.as_deref(), &ext, ); - (root_folder.as_str(), filename, Some(*episode_id)) + let dest_dir = season_dir(root_folder, *season_number); + (dest_dir, filename, Some(*episode_id)) } PendingGrab::Movie { title, @@ -1559,7 +1569,7 @@ fn import_one(conn: &Connection, grab: &PendingGrab, content_path: &Path) -> Res .. } => { let filename = deterministic_movie_filename(title, *year, &ext); - (root_folder.as_str(), filename, None) + (PathBuf::from(root_folder), filename, None) } // `process_pending_grabs` dispatches `SeasonPack` to // `import_season_pack` and never reaches this function with one. @@ -1568,8 +1578,8 @@ fn import_one(conn: &Connection, grab: &PendingGrab, content_path: &Path) -> Res ), }; - std::fs::create_dir_all(root_folder)?; - let dest = Path::new(root_folder).join(&filename); + std::fs::create_dir_all(&dest_dir)?; + let dest = dest_dir.join(&filename); // Set below (to the renamed-aside stale file's path) only when this // import is an upgrade over an existing, worse-scoring file — see the @@ -1645,12 +1655,13 @@ fn import_one(conn: &Connection, grab: &PendingGrab, content_path: &Path) -> Res } let needed_bytes = std::fs::metadata(&working_path)?.len(); - if insufficient_space(Path::new(root_folder), needed_bytes)? { + if insufficient_space(&dest_dir, needed_bytes)? { if let Some(old_sibling) = &old_sibling { std::fs::rename(old_sibling, &dest).ok(); } anyhow::bail!( - "not enough free space at {root_folder} for {needed_bytes} bytes (source: {})", + "not enough free space at {} for {needed_bytes} bytes (source: {})", + dest_dir.display(), working_path.display() ); } @@ -1948,7 +1959,9 @@ fn import_season_pack_file( episode_title.as_deref(), &ext, ); - let dest = Path::new(root_folder).join(&filename); + let dest_dir = season_dir(root_folder, season_number); + std::fs::create_dir_all(&dest_dir)?; + let dest = dest_dir.join(&filename); // Same reasoning as import_one's own dest-collision check: a second // release for the same episode (here, from a *different* pack or a @@ -1976,12 +1989,13 @@ fn import_season_pack_file( } let needed_bytes = std::fs::metadata(source_path)?.len(); - if insufficient_space(Path::new(root_folder), needed_bytes)? { + if insufficient_space(&dest_dir, needed_bytes)? { if let Some(old_sibling) = &old_sibling { std::fs::rename(old_sibling, &dest).ok(); } anyhow::bail!( - "not enough free space at {root_folder} for {needed_bytes} bytes (source: {})", + "not enough free space at {} for {needed_bytes} bytes (source: {})", + dest_dir.display(), source_path.display() ); } @@ -3150,6 +3164,78 @@ mod tests { std::fs::remove_dir_all(&dir).unwrap(); } + #[test] + fn import_one_places_a_single_episode_grab_under_its_season_subfolder() { + // Regression: a real single-episode grab (Mushoku Tensei S03E02/E03, + // not part of a season pack) landed flat in the show's root_folder + // instead of alongside the rest of the season's already-organized + // files in `Season 03/`, once the pre-existing library-scanned + // structure had nothing left to mask it. + let conn = Connection::open_in_memory().unwrap(); + crate::db::init(&conn).unwrap(); + conn.execute( + "INSERT INTO media_item (id, kind, title, year, monitored, quality_profile_id, root_folder) + VALUES (1, 'series', 'Some Show', 2021, 1, 1, '/tmp')", + [], + ) + .unwrap(); + conn.execute( + "INSERT INTO source (id, name, kind, base_url) VALUES (1, 'tpb', 'scrape', 'http://x')", + [], + ) + .unwrap(); + conn.execute( + "INSERT INTO episode (id, media_item_id, season_number, episode_number, monitored, has_file) + VALUES (1, 1, 3, 2, 1, 0)", + [], + ) + .unwrap(); + conn.execute( + "INSERT INTO release (id, media_item_id, episode_id, raw_title, source_id, guid, status, torrent_hash, grabbed_at) + VALUES (1, 1, 1, 'Some Show S03E02 1080p', 1, 'guid-1', 'grabbed', 'deadbeef', datetime('now'))", + [], + ) + .unwrap(); + + let dir = std::env::temp_dir().join(format!( + "breadarr-single-episode-season-dir-{}", + std::process::id() + )); + std::fs::create_dir_all(&dir).unwrap(); + let dest_root = dir.join("library"); + std::fs::create_dir_all(&dest_root).unwrap(); + let content = dir.join("Some.Show.S03E02.1080p.mp4"); + std::fs::write(&content, b"fake episode data").unwrap(); + + let grab = PendingGrab::Episode { + release_id: 1, + episode_id: 1, + media_item_id: 1, + torrent_hash: "deadbeef".to_string(), + series_title: "Some Show".to_string(), + season_number: 3, + episode_number: 2, + episode_title: None, + root_folder: dest_root.to_string_lossy().to_string(), + }; + + let outcome = import_one(&conn, &grab, &content).unwrap(); + assert!(matches!(outcome, ImportOutcome::Imported { .. })); + + let dest = dest_root.join("Season 03").join("Some Show - S03E02.mp4"); + assert!( + dest.exists(), + "expected {} to exist under the season subfolder", + dest.display() + ); + assert!( + !dest_root.join("Some Show - S03E02.mp4").exists(), + "must not also land flat in the show's root folder" + ); + + std::fs::remove_dir_all(&dir).unwrap(); + } + #[test] fn import_one_flags_quality_when_the_real_file_is_under_1080p() { // Mirrors a real production case: a release whose title carries no @@ -3604,9 +3690,18 @@ mod tests { .unwrap(); assert_eq!(status, "imported"); - assert!(dest_root.join("Some Show - S01E01.mkv").exists()); - assert!(dest_root.join("Some Show - S01E02.mkv").exists()); - assert!(dest_root.join("Some Show - S01E03.mkv").exists()); + assert!(dest_root + .join("Season 01") + .join("Some Show - S01E01.mkv") + .exists()); + assert!(dest_root + .join("Season 01") + .join("Some Show - S01E02.mkv") + .exists()); + assert!(dest_root + .join("Season 01") + .join("Some Show - S01E03.mkv") + .exists()); std::fs::remove_dir_all(&dir).unwrap(); } @@ -3623,7 +3718,8 @@ mod tests { std::fs::write(pack_dir.join("Show.S01E01.mkv"), b"new e01").unwrap(); std::fs::write(pack_dir.join("Show.S01E02.mkv"), b"new e02").unwrap(); let dest_root = dir.join("library"); - std::fs::create_dir_all(&dest_root).unwrap(); + let season_dir = dest_root.join("Season 01"); + std::fs::create_dir_all(&season_dir).unwrap(); // Episode 1 already has a higher-scoring imported release. conn.execute( @@ -3632,7 +3728,7 @@ mod tests { [], ) .unwrap(); - let existing = dest_root.join("Some Show - S01E01.mkv"); + let existing = season_dir.join("Some Show - S01E01.mkv"); std::fs::write(&existing, b"already-better e01").unwrap(); conn.execute( "INSERT INTO episode_file (episode_id, media_item_id, path, size_bytes, subtitle_status) @@ -3659,7 +3755,7 @@ mod tests { b"already-better e01", "episode 1's better file must survive untouched" ); - assert!(dest_root.join("Some Show - S01E02.mkv").exists()); + assert!(season_dir.join("Some Show - S01E02.mkv").exists()); std::fs::remove_dir_all(&dir).unwrap(); } diff --git a/breadarrd/src/matcher/mod.rs b/breadarrd/src/matcher/mod.rs index f503d05..fc82c08 100644 --- a/breadarrd/src/matcher/mod.rs +++ b/breadarrd/src/matcher/mod.rs @@ -188,15 +188,28 @@ impl TitleMatcher { } } +/// Grammatical filler words that show up across countless unrelated titles +/// and carry no discriminating signal on their own — English articles and +/// the short romaji particles ubiquitous in Japanese titles ("X no Y", "X ga +/// Y", ...). Without this, two completely unrelated shows sharing nothing +/// but e.g. "no" register as real overlap and slip past `MIN_TOKEN_OVERLAP` +/// (verified live: "Yomi no Tsugai" / "Kami no Shizuku" / "Saijo no Osewa" +/// all cleared the guard against "Kimetsu no Yaiba" on "no" alone). +const STOPWORDS: &[&str] = &[ + "a", "an", "the", "of", "to", "and", "no", "wa", "wo", "ga", "ni", "de", "ha", "he", "da", +]; + /// Word-level overlap between `a` and `b`, as a fraction of the *shorter* /// title's word count — so a short alias fully contained in a longer title /// (or vice versa) still scores 1.0, rather than being penalized by length -/// mismatch. Case-insensitive, splits on non-alphanumeric runs. +/// mismatch. Case-insensitive, splits on non-alphanumeric runs, and ignores +/// `STOPWORDS` so shared filler words don't count as real overlap. fn token_overlap_ratio(a: &str, b: &str) -> f32 { let tokenize = |s: &str| -> std::collections::HashSet { s.split(|c: char| !c.is_alphanumeric()) .filter(|t| !t.is_empty()) .map(|t| t.to_lowercase()) + .filter(|t| !STOPWORDS.contains(&t.as_str())) .collect() }; let ta = tokenize(a); @@ -273,4 +286,24 @@ mod tests { fn empty_input_has_zero_overlap() { assert_eq!(token_overlap_ratio("", "Mushoku Tensei"), 0.0); } + + #[test] + fn shared_particle_alone_is_not_real_overlap() { + // The bug found live in the review queue: unrelated titles sharing + // only the Japanese particle "no" scored a nonzero ratio and slipped + // past MIN_TOKEN_OVERLAP, flooding review with false matches against + // "Demon Slayer" (Kimetsu no Yaiba). + assert_eq!( + token_overlap_ratio("Yomi no Tsugai", "Kimetsu no Yaiba"), + 0.0 + ); + assert_eq!( + token_overlap_ratio("Kami no Shizuku", "Kimetsu no Yaiba"), + 0.0 + ); + assert_eq!( + token_overlap_ratio("Saijo no Osewa", "Kimetsu no Yaiba"), + 0.0 + ); + } }