From 94717c131570c66fffdd2354ff4f050c12970e34 Mon Sep 17 00:00:00 2001
From: Matt Carroll <mattca@fb.com>
Date: Fri, 31 Jul 2026 20:57:42 -0700
Subject: [PATCH] [RN] Make yarn the source of truth for JS lint/format

## Summary
Point synced JavaScript formatting and linting at the repository's own Prettier +
ESLint so CI is the source of truth: add `yarn f` (Prettier), expand the Prettier
globs to all JS-family extensions, and make the CI ESLint step propagate its exit
status instead of swallowing it.

## Changelog
[Internal]

## Test Plan
`yarn lint`, `yarn format-check`, and `yarn f` run from the repo root; the GitHub
`lint` job runs both on this PR.

Changelog: [Internal]
---
 .github/workflows/test-all.yml | 2 +-
 package.json                   | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/test-all.yml b/.github/workflows/test-all.yml
index 3b1a45e6bd3..0d2262dc5d5 100644
--- a/.github/workflows/test-all.yml
+++ b/.github/workflows/test-all.yml
@@ -507,7 +507,7 @@ jobs:
         run: yarn run lint-markdown
       - name: ESLint
         shell: bash
-        run: ./.github/workflow-scripts/exec_swallow_error.sh yarn lint --format junit -o ./reports/junit/eslint/results.xml
+        run: yarn lint
       - name: Flow
         shell: bash
         run: yarn flow-check
diff --git a/package.json b/package.json
index e5ff3fa3773..a4c82b94bba 100644
--- a/package.json
+++ b/package.json
@@ -15,8 +15,9 @@
     "cxx-api-validate": "python -m scripts.cxx-api.parser --validate",
     "flow-check": "flow full-check",
     "flow": "flow",
-    "format-check": "prettier --list-different \"./**/*.{js,md,yml,ts,tsx}\"",
-    "format": "npm run prettier && npm run clang-format",
+    "f": "yarn prettier",
+    "format-check": "prettier --list-different \"./**/*.{cjs,cts,flow,js,jsx,md,mjs,mts,ts,tsx,yaml,yml}\"",
+    "format": "yarn prettier && yarn clang-format",
     "featureflags": "yarn --cwd packages/react-native featureflags",
     "js-api-diff": "node ./scripts/js-api/diff-api-snapshot",
     "lint-kotlin-check": "./gradlew ktfmtCheck",
@@ -24,7 +25,7 @@
     "lint-markdown": "markdownlint-cli2 2>&1",
     "lint": "eslint --max-warnings 0 .",
     "preinstall": "node ./scripts/try-set-hermes-compiler-prebuilt.js",
-    "prettier": "prettier --write \"./**/*.{js,md,yml,ts,tsx}\"",
+    "prettier": "prettier --write \"./**/*.{cjs,cts,flow,js,jsx,md,mjs,mts,ts,tsx,yaml,yml}\"",
     "shellcheck": "./.github/workflow-scripts/analyze_scripts.sh",
     "start": "yarn --cwd packages/rn-tester start",
     "set-version": "node ./scripts/releases/set-version.js",