feat(oxfmt): Support oxfmtrc `overrides` config by leaysgur · Pull Request #18068 · oxc-project/oxc

leaysgur · 2026-01-16T07:57:49Z

leaysgur · 2026-01-16T07:58:12Z

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codspeed-hq · 2026-01-16T08:03:34Z

CodSpeed Performance Report

Merging this PR will not alter performance

_{Comparing 01-16-feat_oxfmt_support_oxfmtrc_overrides (ce3f6eb) with main (727939f)}

Summary

✅ 42 untouched benchmarks
⏩ 3 skipped benchmarks¹

3 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

Copilot

Pull request overview

Adds support for .oxfmtrc overrides so users can apply file-specific formatting options.

Changes:

Extend the oxfmtrc schema/docs to include overrides and OxfmtOverrideConfig.
Add Rust config structures + parsing for overrides, and strip overrides before passing config to Prettier.
Implement per-file override resolution in ConfigResolver using glob matching.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tasks/website_formatter/src/snapshots/schema_markdown.snap	Documents the new `overrides` section and nested options in markdown schema output.
tasks/website_formatter/src/snapshots/schema_json.snap	Updates the JSON schema snapshot with `overrides`, `FormatConfig`, and `OxfmtOverrideConfig` definitions.
npm/oxfmt/configuration_schema.json	Ships the updated JSON schema including `overrides` for npm consumers.
apps/oxfmt/src/core/oxfmtrc.rs	Introduces `overrides` in `Oxfmtrc`, adds `OxfmtOverrideConfig`, and ensures Prettier config stripping removes `overrides`.
apps/oxfmt/src/core/config.rs	Adds override resolution logic (match files/excludeFiles globs, merge options per file).
apps/oxfmt/Cargo.toml	Adds `fast-glob` dependency for glob matching.
Cargo.lock	Locks the new `fast-glob` dependency.

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apps/oxfmt/src/core/config.rs

Dunqing · 2026-01-19T07:33:16Z

Good milestone for us!

graphite-app · 2026-01-19T07:39:07Z

Merge activity

Jan 19, 7:39 AM UTC: Dunqing added this pull request to the Graphite merge queue.
Jan 19, 7:46 AM UTC: Merged by the Graphite merge queue.

Fixes #17585

Follow up on #18068

Document the new `overrides` field for file-specific formatting options. Ref: oxc-project/oxc#18068 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* docs(formatter): add overrides configuration section Document the new `overrides` field for file-specific formatting options. Ref: oxc-project/oxc#18068 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> * Clarify glob pattern resolution in config.md Added clarification on glob pattern resolution in config. Signed-off-by: Yuji Sugiura <6259812+leaysgur@users.noreply.github.com> --------- Signed-off-by: Yuji Sugiura <6259812+leaysgur@users.noreply.github.com> Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> Co-authored-by: Yuji Sugiura <6259812+leaysgur@users.noreply.github.com>

github-actions bot added A-cli Area - CLI A-formatter Area - Formatter C-enhancement Category - New feature or request labels Jan 16, 2026

leaysgur mentioned this pull request Jan 16, 2026

refactor(oxfmt): Update .editorconfig overrides logic to prepare for oxfmtrc overrides #18064

Merged

leaysgur changed the title ~~feat(oxfmt): Support oxfmtrc overrides~~ feat(oxfmt): Support oxfmtrc overrides config Jan 16, 2026

leaysgur force-pushed the 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides branch from 56eb9f2 to d9287b9 Compare January 16, 2026 08:57

leaysgur force-pushed the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch 2 times, most recently from 34825d3 to 6d0ee5c Compare January 16, 2026 13:51

leaysgur force-pushed the 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides branch from d9287b9 to f426209 Compare January 16, 2026 13:51

leaysgur force-pushed the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch from 6d0ee5c to fba5c1d Compare January 19, 2026 01:28

leaysgur force-pushed the 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides branch from f426209 to 8166c80 Compare January 19, 2026 01:28

graphite-app bot changed the base branch from 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides to graphite-base/18068 January 19, 2026 01:45

leaysgur force-pushed the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch from fba5c1d to c1f1359 Compare January 19, 2026 01:46

leaysgur changed the base branch from graphite-base/18068 to 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides January 19, 2026 01:46

Base automatically changed from 01-16-refactor_oxfmt_update_editorconfig_overrides_logic_to_prepare_for_oxfmtrc_overrides to main January 19, 2026 01:51

leaysgur force-pushed the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch 3 times, most recently from 44bf696 to ce3f6eb Compare January 19, 2026 05:12

leaysgur marked this pull request as ready for review January 19, 2026 05:19

Copilot AI review requested due to automatic review settings January 19, 2026 05:19

Copilot started reviewing on behalf of leaysgur January 19, 2026 05:20 View session

leaysgur mentioned this pull request Jan 19, 2026

test(oxfmt): Test oxfmtrc.overrides #18208

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Copilot AI reviewed Jan 19, 2026

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leaysgur requested a review from Dunqing January 19, 2026 05:50

leaysgur assigned Dunqing Jan 19, 2026

This was referenced Jan 19, 2026

fix(oxfmt): Apply .editorconfig root section with oxfmtrc.overrides #18210

Merged

oxfmt: Support overrides by --migrate prettier mode #18215

Open

chore(oxfmt): Add comments for migrate overrides #18216

Merged

Dunqing approved these changes Jan 19, 2026

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graphite-app bot added the 0-merge Merge with Graphite Merge Queue label Jan 19, 2026

feat(oxfmt): Support oxfmtrc overrides config (#18068)

a95b9bb

Fixes #17585

graphite-app bot force-pushed the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch from ce3f6eb to a95b9bb Compare January 19, 2026 07:39

graphite-app bot pushed a commit that referenced this pull request Jan 19, 2026

test(oxfmt): Test oxfmtrc.overrides (#18208)

63df94b

Follow up on #18068

graphite-app bot merged commit a95b9bb into main Jan 19, 2026
22 checks passed

graphite-app bot deleted the 01-16-feat_oxfmt_support_oxfmtrc_overrides branch January 19, 2026 07:46

graphite-app bot removed the 0-merge Merge with Graphite Merge Queue label Jan 19, 2026

Boshen mentioned this pull request Jan 19, 2026

release(apps): oxlint v1.40.0 && oxfmt v0.25.0 #18223

Merged

leaysgur mentioned this pull request Jan 20, 2026

oxfmt: overrides support, a.k.a language specific configuration #17585

Closed

Dunqing mentioned this pull request Jan 20, 2026

chore: migrate to Oxfmt vitejs/vite#21446

Draft

Boshen mentioned this pull request Feb 4, 2026

docs(formatter): add overrides configuration section oxc-project/website#862

Merged

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feat(oxfmt): Support oxfmtrc `overrides` config#18068

feat(oxfmt): Support oxfmtrc `overrides` config#18068
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