perf(migrate): speed up rewriteAllImports ~16x with cached rules, pre-filter, and rayon#1172
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perf(migrate): speed up rewriteAllImports ~16x with cached rules, pre-filter, and rayon#1172
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…-filter, and rayon - Cache ast-grep YAML rule parsing with LazyLock (eliminating 921 redundant parses) - Add string pre-filter to skip files without vite/vitest/tsdown imports - Parallelize file processing with rayon Benchmark on 307-file project: 20.7s → 1.3s (~16x faster). Closes #1156
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Before before-Screen.Recording.2026-03-27.at.21.43.07.movAfter afterScreen.Recording.2026-03-27.at.21.45.11.mov@kazupon It might be that my computer's performance is too good, so the previous serial version wasn't too slow either. 😃 |
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Thank you so much! |
kazupon
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Mar 28, 2026
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Benchmark on 307-file project: 20.7s → 1.3s (~16x faster).
Closes #1156