en Copyright 2015 Java http://172.16.0.5:8080/history/expo/packages/@expo/cli/src/start/server/metro/externals.ts#8be58d21 fix(cli): fix externals for Metro Node.js rendering. (#22695) List of files: /expo/packages/@expo/cli/src/start/server/metro/externals.ts Wed, 31 May 2023 00:02:26 +0000 Evan Bacon <bacon@expo.io> http://172.16.0.5:8080/history/expo/packages/@expo/cli/src/start/server/metro/externals.ts#57eba0f9 feat(cli): add node target and externals to Metro (#21886)# Why In order to bundle for Node.js targets using Metro (required for React Server Components and other features), we need to add support for leaving the Node.js imports in-tact (no first-class support), and the ability to indicate that we're targeting Node.js without changing the platform from web. <!-- Please describe the motivation for this PR, and link to relevant GitHub issues, forums posts, or feature requests. --> # How - Use `resolver.environment` and `transform.environment` to partially invalidate the Metro cache and pass custom options to the transformer (usage currently unimplemented) and resolver. - Tap Node.js files in the user project under `.expo/metro/externals/[module]/index.js` and redirect requests to these modules when bundling for Node.js environments. - Tap a polyfill which exposes `$$require_external` on the global. `$$require_external` can be used to access the environment require from anywhere in the bundle. - `$$require_external` asserts when used in the browser or native (where it shouldn't be available). <!-- How did you build this feature or fix this bug and why? --> # Test Plan - Added unit tests. - Tested against an Expo Router project. <!-- Please describe how you tested this change and how a reviewer could reproduce your test, especially if this PR does not include automated tests! If possible, please also provide terminal output and/or screenshots demonstrating your test/reproduction. --> # Checklist <!-- Please check the appropriate items below if they apply to your diff. This is required for changes to Expo modules. --> - [ ] Documentation is up to date to reflect these changes (eg: https://docs.expo.dev and README.md). - [ ] Conforms with the [Documentation Writing Style Guide](https://github.com/expo/expo/blob/main/guides/Expo%20Documentation%20Writing%20Style%20Guide.md) - [ ] This diff will work correctly for `expo prebuild` & EAS Build (eg: updated a module plugin). --------- Co-authored-by: Expo Bot <34669131+expo-bot@users.noreply.github.com> List of files: /expo/packages/@expo/cli/src/start/server/metro/externals.ts Wed, 29 Mar 2023 22:27:23 +0000 Evan Bacon <bacon@expo.io>