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perf(resolve): fix browser mapping nearest package.json check #12550

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merged 2 commits into from Mar 23, 2023

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bluwy
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@bluwy bluwy commented Mar 23, 2023

Description

We're passing a file path to findNearestPackageData which causes it to stat /Users/foo/bar.js/package.json constantly, and fs.statSync even with throwIfNoEntry throws an error in that case with ENOTDIR: not a directory, stat.

This PR ensures we're passing a dir path instead to prevent the issue, so it's one less directory to check, and no errors will happen from fs.statSync.

Additional context

This brings down my previous tests of prebundling speed, from 2s to 1.4s

(100ms comes from recent refactors from patak it seems 馃帀 )


What is the purpose of this pull request?

  • Bug fix
  • New Feature
  • Documentation update
  • Other

@bluwy bluwy added p4-important Violate documented behavior or significantly improves performance (priority) performance Performance related enhancement labels Mar 23, 2023
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patak-dev
patak-dev previously approved these changes Mar 23, 2023
@patak-dev patak-dev enabled auto-merge (squash) March 23, 2023 09:25
@patak-dev patak-dev merged commit eac376e into main Mar 23, 2023
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@patak-dev patak-dev deleted the reslve-browser-perf branch March 23, 2023 09:35
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