[0.84] Fix codegen for projects in hidden folders

[dinisnunes1]

Target Branch

0.84

Link to commit or PR to be picked

facebook/react-native@a12b442

Description

This fix addresses a silent build failure that produces broken apps on CI systems using hidden workspace paths (e.g., Jenkins with ~/.jenkins/workspace/).

Why this is a breaking issue:

1. Builds succeed but apps are broken - No error is thrown; the build completes normally but third-party Fabric components (FlashList, Lottie, WebView, etc.) are not registered, causing runtime UI failures (components disappear, flicker, or render incorrectly).

2. Difficult to diagnose - The root cause is buried in codegen's file discovery logic. The only symptom is broken UI on builds from specific CI environments.

3. Affects common CI setups - Jenkins (one of the most popular CI tools) uses ~/.jenkins/workspace/ by default. This also affects any CI with hidden paths like
   ~/.buildkite/, ~/.circleci/, etc.

4. New Architecture adoption blocker - Teams enabling Fabric may see this issue only on CI builds, making it a significant barrier to New Architecture adoption.

5. Minimal risk fix - The change is a one-line modification to the hidden folder detection logic, with no side effects on other functionality.

[react-native-bot]

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[fabriziocucci]

@react-native-bot merge a12b442d26d0b3a47b4a3d2c1ccccfeb890b9bdc 0.84-stable

[react-native-bot]

✅ Successfully picked up your commit facebook/react-native@a12b442 on the branch https://github.com/facebook/react-native/commits/0.84-stable