fix(dev): Prime mtimes cache

[aroneous]

🔗 Linked issue

Resolves #1135

❓ Type of change

• [ ] 📖 Documentation (updates to the documentation or readme)
• [x] 🐞 Bug fix (a non-breaking change that fixes an issue)
• [ ] 👌 Enhancement (improving an existing functionality)
• [ ] ✨ New feature (a non-breaking change that adds functionality)
• [ ] 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• [ ] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

When watching for file/directory changes, prime the FileChangeTracker with initial mtimes of the tracked files, such that if the first notification received for a file is spurious (does not represent an actual change), shouldEmitChange will return 'false'.

Without this, the 'priming' happened via several reloads/restarts, but with the introduction of the ForkPool, the FileChangeTracker cache no longer perists across restarts, never allowing it to become populated. Result: unpredictable restarts.

[github-actions[bot]]

📦 Bundle Size Comparison

📈 nuxi

Metric	Base	Head	Diff
Rendered	4454.09 KB	4454.51 KB	+0.42 KB (+0.01%)

📈 nuxt-cli

Metric	Base	Head	Diff
Rendered	135.16 KB	135.79 KB	+0.63 KB (+0.46%)

➡️ create-nuxt

Metric	Base	Head	Diff
Rendered	2376.50 KB	2376.50 KB	0.00 KB (0.00%)

[pkg-pr-new[bot]]

• nuxt-cli-playground

  npm i https://pkg.pr.new/create-nuxt@1137
  

  npm i https://pkg.pr.new/nuxi@1137
  

  npm i https://pkg.pr.new/@nuxt/cli@1137
  

commit: 7c3db44

[codecov-commenter]

Codecov Report

:x: Patch coverage is 90.00000% with 3 lines in your changes missing coverage. Please review. :warning: Please upload report for BASE (main@b04de4f). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
packages/nuxi/src/dev/utils.ts	90.00%	3 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1137   +/-   ##
=======================================
  Coverage        ?   24.12%           
=======================================
  Files           ?       89           
  Lines           ?     4767           
  Branches        ?      252           
=======================================
  Hits            ?     1150           
  Misses          ?     3585           
  Partials        ?       32           

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[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #1137 will not alter performance

_{Comparing aroneous:fix/1135-mtimes (7c3db44) with main (b04de4f)}

Summary

✅ 2 untouched

[aroneous]

Fixed Windows-specific issues (yeah, the fix is for Windows in the first place, but I developed in on a Mac for silly reasons). I don't think the remaining test failure is related to this change.