feat(linter/plugins): move custom JS plugin config to jsPlugins

[overlookmotel]

Fixes #12432.

JS plugins were previously configured by adding them to plugins array in config file. Instead, move them to a separate jsPlugins array.

Before:

{
  "plugins": ["oxc", "react", "./custom-plugin.js"],
}

After:

{
  "plugins": ["oxc", "react"],
  "jsPlugins": ["./custom-plugin.js"],
}

[overlookmotel]

• feat(linter/plugins): remove --js-plugins CLI option #14134
• feat(linter/plugins): move custom JS plugin config to jsPlugins #14133 👈 (View in Graphite)
• main

---

How to use the Graphite Merge Queue

Add either label to this PR to merge it via the merge queue:

• 0-merge - adds this PR to the back of the merge queue
• hotfix - for urgent hot fixes, skip the queue and merge this PR next

You must have a Graphite account in order to use the merge queue. Sign up using this link.

An organization admin has enabled the Graphite Merge Queue in this repository.

Please do not merge from GitHub as this will restart CI on PRs being processed by the merge queue.

This stack of pull requests is managed by Graphite. Learn more about stacking.

[Copilot]

Pull Request Overview

This PR refactors the linter plugin configuration by separating JS plugins from built-in plugins. Custom JS plugins are now configured in a separate jsPlugins array instead of mixing them with built-in plugins in the existing plugins array.

Key changes:

• Added jsPlugins field to config schema for JS plugins
• Unified plugin types into a single LintPlugins bitflag (removing BuiltinLintPlugins)
• Updated test fixtures to use the new jsPlugins configuration

Reviewed Changes

Copilot reviewed 42 out of 42 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
crates/oxc_linter/src/config/plugins.rs	Major refactor consolidating plugin types and adding JS plugin deserialization with validation
crates/oxc_linter/src/config/oxlintrc.rs	Added external_plugins field for JS plugins configuration
crates/oxc_linter/src/config/overrides.rs	Added JS plugins support in overrides
Schema files	Added jsPlugins field documentation and validation
Test fixtures	Updated all config files to use jsPlugins instead of plugins for custom plugins

Comments suppressed due to low confidence (1)

crates/oxc_linter/src/config/plugins.rs:1

• The methods union and difference are being called on LintPlugins but these methods don't exist. Based on the bitflags usage elsewhere in the file, this should use bitwise operators: LintPlugins::default() | LintPlugins::REACT & !LintPlugins::UNICORN.

use bitflags::bitflags;

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #14133 will not alter performance

_{Comparing 09-26-feat_linter_plugins_move_custom_js_plugin_config_to_jsplugins_ (b4d716f) with main (6fffdf9)¹}

Summary

✅ 4 untouched
⏩ 33 skipped²

Footnotes

1. No successful run was found on main (b4d716f) during the generation of this report, so 6fffdf9 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

2. 33 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. ↩

[camc314]

Merge activity

• Sep 26, 10:05 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Sep 26, 10:06 AM UTC: camc314 added this pull request to the Graphite merge queue.
• Sep 26, 10:11 AM UTC: Merged by the Graphite merge queue.