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perf: cache compiled glob for server.fs.deny #10044

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merged 2 commits into from Sep 22, 2022

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Description

Splitted server.fs.deny part from #10037.


This PR makes Vite cache compiled globs. This improved performance for ~4% on my project.

micromatch.isMatch always calls picomatch(patterns, options)(str) which leads compiling glob every time.
https://github.com/micromatch/micromatch/blob/002d0d184c95e76775528fa1dbe0c446518879b2/index.js#L123
I've changed this to cache picomatch(patterns, options) to avoid compiling it.

Additional context

Is it safe to rewrite micromatch into picomatch?

picomatch says micromatch supports more more advanced matching with braces. But actually it currently does not for some functions (micromatch/micromatch#169 (comment)) and as you can see from the implementation I quoted above, micromatch.isMatch is just a shorthand.

Bundle size

Didn't change.


What is the purpose of this pull request?

  • Bug fix
  • New Feature
  • Documentation update
  • Other

Before submitting the PR, please make sure you do the following

  • Read the Contributing Guidelines.
  • Read the Pull Request Guidelines and follow the Commit Convention.
  • Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
  • Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
  • Ideally, include relevant tests that fail without this PR but pass with it.

@sapphi-red sapphi-red added the p2-nice-to-have Not breaking anything but nice to have (priority) label Sep 8, 2022
@patak-dev patak-dev added this to the 3.2 milestone Sep 8, 2022
@patak-dev patak-dev merged commit df560b0 into vitejs:main Sep 22, 2022
@sapphi-red sapphi-red deleted the perf/cache-compiled-glob-fsdeny branch September 23, 2022 11:18
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3 participants