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Migrate from prettier to oxfmt#5986

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mstange merged 1 commit into
firefox-devtools:mainfrom
mstange:oxfmt
May 11, 2026
Merged

Migrate from prettier to oxfmt#5986
mstange merged 1 commit into
firefox-devtools:mainfrom
mstange:oxfmt

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@mstange

@mstange mstange commented Apr 29, 2026

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Numbers from my machine:
yarn prettier-fix before: 6.5 seconds
yarn fmt after: 1.3 seconds

yarn lint-fix is still slow (9 seconds), I think that's bottlenecked on eslint.

@codecov

codecov Bot commented Apr 29, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.82%. Comparing base (9816c0e) to head (642c1fd).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@           Coverage Diff           @@
##             main    #5986   +/-   ##
=======================================
  Coverage   83.82%   83.82%           
=======================================
  Files         328      328           
  Lines       34255    34255           
  Branches     9574     9572    -2     
=======================================
  Hits        28713    28713           
  Misses       5114     5114           
  Partials      428      428           

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@mstange mstange marked this pull request as ready for review April 29, 2026 21:29
@mstange mstange requested review from canova and fatadel as code owners April 29, 2026 21:29
@cathaysia

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Hi there—have you tried biome.js? I've been using it in my projects, and I think it's actually pretty good.
https://biomejs.dev/

@fatadel fatadel left a comment

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Thanks for taking care of this! I've added just one nit (comment update), otherwise lgtm 👍🏻

Comment thread src/test/unit/profile-upgrading.test.ts
Comment thread .oxfmtrc.json
Comment thread eslint.config.mjs
// Prettier config must be placed here to disable formatting rules from the
// base configs above, while allowing our custom rules below to take
// precedence.
prettierConfig,

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eslint-config-prettier essentially disables a bunch of formatting rules that might clash with the prettier formatting. I wonder if we need something for oxfmt too, but I think it's fine if it didn't clash already after the migration.

Numbers from my machine:
`yarn prettier-fix` before: 6.5 seconds
`yarn fmt` after: 1.3 seconds

`yarn lint-fix` is still slow (9 seconds), I think that's bottlenecked on eslint.
@mstange

mstange commented May 11, 2026

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Hi there—have you tried biome.js? I've been using it in my projects, and I think it's actually pretty good. https://biomejs.dev/

I haven't tried it, I have no opinion on which to prefer. In any case, it's not hard to switch.

@mstange mstange merged commit 3f4b22d into firefox-devtools:main May 11, 2026
21 checks passed
@canova canova mentioned this pull request May 26, 2026
canova added a commit that referenced this pull request May 26, 2026
Changes:

[fatadel] Remove unused dependencies from package.json (#6010)
[Nazım Can Altınova] Make profiler-cli work in sandboxed environments
(#6003)
[Markus Stange] Make profiler-edit run profile compacting before writing
out the file (#6015)
[Markus Stange] Migrate from prettier to oxfmt (#5986)
[Markus Stange] Add a --symbolicate-wasm arg to profiler-edit. (#6008)
[Markus Stange] Build and upload the cli artifact in PRs (#6020)
[Markus Stange] Use @streamparser/json if the input is too large to fit
in a V8 string (#6016)
[Nazım Can Altınova] Print also the status output right after cli `load`
command (#6019)
[Nicolas Chevobbe] Update devtools-reps to 0.27.7 (#6030)
[Nazım Can Altınova] Include `--search` option in `pq filter push`
(#6026)
[Nazım Can Altınova] Update all Yarn dependencies (2026-05-20) (#6033)
[fatadel] Translate URL track-index state through profile sanitization
(#6000)
[Markus Stange] Make withSize use a wrapper element so that it can stop
calling findDOMNode (#5988)
[Markus Stange] Fix dhat importer (#6036)
[Nazım Can Altınova] Annotate inlined frames in CLI call trees and
stacks (#6041)
[Nazım Can Altınova] Use proper types in cli tests instead of custom
inline types (#6038)
[Nazım Can Altınova] Fix text truncation for frames named after
Object.prototype methods (#6044)
[Nazım Can Altınova] Add missing key props to CodeErrorOverlay error
list items (#6047)
[depfu[bot]] ⬆️ Update oxfmt to version 0.51.0 (#6054)
[Nazım Can Altınova] 🔃 Sync: l10n -> main (May 26, 2026) (#6058)
[Nazım Can Altınova] Use URL-state symbol server for `profiler-cli
function annotate` (#6051)
[Nazım Can Altınova] Bump profiler-cli version to 0.2.0 (#6059)

And special thanks to our localizers:

fr: YD
sr: Марко Костић (Marko Kostić)
tr: Ali Demirtaş
zh-CN: Olvcpr423
zh-CN: wxie
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4 participants