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Title: perf(fmt): reuse parent context in batch ignore matching by chenjiahan · Pull Request #593 · rstackjs/rstack-cli · GitHub

Open Graph Title: perf(fmt): reuse parent context in batch ignore matching by chenjiahan · Pull Request #593 · rstackjs/rstack-cli

X Title: perf(fmt): reuse parent context in batch ignore matching by chenjiahan · Pull Request #593 · rstackjs/rstack-cli

Description: Motivation Batch ignore matching repeats ancestor-source lookups, parent-directory checks, and path-prefix construction for each entry in the same directory. Changes Reuse the applicable ignore sources, parent state, and path prefixes across each batch. Share rule evaluation and directory caching between individual and batch matches, and extend regression coverage for nested negation and cache invalidation after source updates. Local measurements on a 56,631-file monorepo, using Node.js 22.16.0, 8 workers, no formatter cache, identical JS snapshots, and release native builds: Median Before After Native call replay 167.43 ms 151.60 ms File discovery 355.35 ms 362.14 ms Full format check 16.67 s 16.86 s Native replay improved by 9.5%. File discovery and full checks showed no consistent improvement; the full check was faster in 3 of 6 rounds. Measurements exclude warmups and interleave variants: 18 native replay rounds, 12 fresh-process discovery runs, and 6 fresh-process full checks per variant. File/configuration hashes and diagnostics matched. Validation: Rust formatting, Clippy, workspace tests, JS/native builds, and Rstack tests passed. A temporary differential harness also found no mismatches against the previous implementation across 2,164,583 comparisons.

Open Graph Description: Motivation Batch ignore matching repeats ancestor-source lookups, parent-directory checks, and path-prefix construction for each entry in the same directory. Changes Reuse the applicable ignore sou...

X Description: Motivation Batch ignore matching repeats ancestor-source lookups, parent-directory checks, and path-prefix construction for each entry in the same directory. Changes Reuse the applicable ignore sou...

Opengraph URL: https://github.com/rstackjs/rstack-cli/pull/593

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