Rob Hogan 2d2011c7ae Invalidate transform cache on update of/local changes to @react-native/babel-preset (#53867) ...

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/53867

`react-native/metro-babel-transformer` implements `getCacheKey` for Metro, but does not vary the cache key on changes to `react-native/babel-preset`, one of its dependencies, leading to false positive cache hits (changes not being reflected).

This is particularly a problem in development, although it potentially also leads to issues in the unusual case that `react-native/babel-preset` is updated via npm, but no other package is.

This adds a `getCacheKey` to `react-native/babel-preset` and incorporates it into `react-native/metro-babel-transformer`'s `getCacheKey`. It's based on `package.json#version` in production and a hash of package contents in development (`version.endsWith('-main')`).

Changelog:
[General][Fixed] Invalidate transform cache when `react-native/babel-preset` is updated

Reviewed By: huntie

Differential Revision: D82893894

fbshipit-source-id: 9bbc034eaf68ee0e5b3078fb2fe8f30caa7f11c9

2025-09-26 08:13:44 -07:00

..

__tests__

Standardize subtyping error code into incompatible-type in react native and metro (#53312)

2025-08-18 09:04:31 -07:00

index.js

Invalidate transform cache on update of/local changes to @react-native/babel-preset (#53867)

2025-09-26 08:13:44 -07:00