Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/47673
Update shared monorepo build script:
- Refactor entry point discovery and file iteration
- Add support for "exports" subpath patterns (skip considering as entry point with warning)
This is required for the incoming migration of `react-native-codegen` to this build setup (D51465053).
Changelog: [Internal]
Reviewed By: robhogan
Differential Revision: D66121262
fbshipit-source-id: 0deb2c2b26de442ee348ef9de54a1fa144368b6f
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/47704
Now that we have a min requirement of Node 18.18 on `main`, drop dependency on this polyfill.
Changelog: [Internal]
Reviewed By: vzaidman
Differential Revision: D66162328
fbshipit-source-id: e8ab6669fe14ed177eccf4b861c01df4fb0d405a
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/47612
Changelog: [internal]
Just using babel-register so we can use Flow types in the code for the RN integration tests runner.
Reviewed By: sammy-SC
Differential Revision: D65948801
fbshipit-source-id: 6c54b0463fe4b71c818ff1c4faa973cc8b13b5d2
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/46987
X-link: https://github.com/facebook/metro/pull/1371
Update `babel/register` to latest version, fixing the bug that were preventing us from updating it previously.
Changelog: [Internal]
Reviewed By: huntie
Differential Revision: D64245277
fbshipit-source-id: f3d07b06a11fbe3a0ed28e22f5b687541782dda9
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/45295
When registering Babel to run RN from source, we currently call `babel/register` directly from `scripts/babel-register.js`.
This has the effect of overwriting any previous registration, which causes problems in the FB monorepo because RN also loads other projects that lie outside this registration (like Metro) from source - possibly requiring different configurations.
Moreover, if Metro is subsequently loaded from source, its own registration clobbers RN's.
Instead, this diff runs the registration through `metro-babel-register`, which maintains a cumulative list of registration directories and applies a uniform transform.
Note that this means we're not using exactly the same transform at build/publish time as for running from source - to fix that, we ought to move everything to a central `babel.config.js`, but that's a much bigger change, and this gets us close enough to unblock.
Changelog: [Internal]
Reviewed By: hoxyq
Differential Revision: D59376984
fbshipit-source-id: 0dbb00970ac87dbe40ec8904bf51ef4b1fee5e0f
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/44339
We require the wrapper code for in repository calls to these packages directly from node (i.e. using CommonJS). This wrapper code typically sits at the entrypoint of the build packages (i.e. `index.js`).
NOTE: This unblocks an issue preventing me from landing further work on the `helloworld` cli replacing the community template.
## Problem:
The [flow-api-translator](https://www.npmjs.com/package/flow-api-translator) library doesn't allow CommonJS `module.exports` when generating TypeScript Type Defintions.
## Change
1. At the built time, this strips out our wrapper code and sets up the dist/ folder appropriately for npm distribution.
2. Updated the `package.json` files to consistently share Flow types
Changelog: [Internal] refactor build packages output to remove wrapper.
NOTE: Added better error messages when users deviated from the current pattern:
{F1501571608}
Reviewed By: huntie
Differential Revision: D56762162
fbshipit-source-id: f110b31e4ad780998dbc81a2482891ac8d8c6458
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/44233
The package was added to our build scripts, but shouldn't have been. We're not exporting this package or making it public.
Changelog: [Internal]
This should unblock our OSS CI.
Reviewed By: cipolleschi
Differential Revision: D56513694
fbshipit-source-id: f37c75871253b2570fb933175165d8f0a9593a16
Summary:
This is a copy of the current packages/react-native/template that we exclusively use internally for testing.
Changelog: [Internal]
NOTE: Best contribution would be to scan the file list and ensure there isn't anything that shouldn't be in there.
bypass-github-export-checks
Reviewed By: cortinico, cipolleschi
Differential Revision: D56242484
fbshipit-source-id: 0913ff7acff9b0314b49f48e986674b77dbb908e
Summary:
Changelog: [Internal]
Use our build script for packages and to generate the TypeScript types.
bypass-github-export-checks
Reviewed By: huntie
Differential Revision: D54428870
fbshipit-source-id: 2a1666d30ac472300979b2be078a906d390e919a
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/43133
I noticed inconsistent handling of terminating newlines in D54006327@V1, and had also been noticing `yarn build` reformatting unrelated sections of `package.json` files.
For now, this logic isn't moved to a shared util, since there will likely be a higher level abstraction for the release scripts in the next batch of improvements.
Changelog: [Internal]
Reviewed By: lunaleaps, cipolleschi
Differential Revision: D54007565
fbshipit-source-id: 74d58362a85be4fae2f9e058b6c6622a026ff0a0
Summary:
This adds `react-native/metro-config` to the monorepo build tool and emits the missing typescript declarations.
Right now, we do have typescript declarations on `metro-config`, but not `react-native/metro-config`. Which makes everything a bit harder extend from "[the default React Native metro config](https://github.com/facebook/react-native/pull/36502)" in Expo.
> Note, I also added the same `exports` block from `react-native/dev-middleware` for conformity.
One open question here is, why aren't we exporting _all_ helper functions from `metro-config`? To me, its a bit weird that we need both `metro-config` _and_ `react-native/metro-config` as `loadConfig` isn't exported.
## Changelog:
[INTERNAL] [FIXED] - Emit typescript declaration files for `react-native/metro-config`
Pull Request resolved: https://github.com/facebook/react-native/pull/41836
Test Plan:
Run the build tool, and check if the typescript declarations are emitted for `react-native/metro-config`.
```
yarn build metro-config
```
Reviewed By: hoxyq
Differential Revision: D51943453
Pulled By: huntie
fbshipit-source-id: cfaffe5660053fc9a9fcbe3dacf7f6ccc2bde01b
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/42681
CI failures in Windows JS tests recently (https://github.com/facebook/react-native/pull/41463) were caused by the triggering of Babel registration during tests, due to an import of `packages/dev-middleware` (index), breaking subsequent transformation of other tests.
## Root cause
Example of a problematic import:
a5d8ea4579/packages/dev-middleware/src/__tests__/ServerUtils.js (L15)
..which triggers a Babel registration:
a5d8ea4579/packages/dev-middleware/src/index.js (L16-L18)
That registration behaves differently on Windows due to the `ignore: [/\/node_modules\/\]`, which doesn't match against Windows path separators - Babel matches against system separators.
In particular, this changed whether `node_modules/flow-parser` was transformed when loading the RN Babel transformer. Transforming this file causes a `console.warn` from Babel due to its size:
> [BABEL] Note: The code generator has deoptimised the styling of /Users/robhogan/workspace/react-native/node_modules/flow-parser/flow_parser.js as it exceeds the max of 500KB.
This throws due to our setup:
a5d8ea4579/packages/react-native/jest/local-setup.js (L27)
This all manifests as the first test following a Babel registration (within the same Jest worker) that requires the RN Babel transformer throwing during script transformation.
## This change
This is the minimally disruptive change that makes Babel registration behaviour consistent between Windows and other platforms. The more durable solution here would be *not* to rely on any Babel registration for Jest, which has its own `ScriptTransformer` mechanism for running code from source. Given the fragile way our internal+OSS Babel set up hangs together that's a higher-risk change, so I'll follow up separately.
Changelog: [Internal]
Reviewed By: huntie
Differential Revision: D53124578
fbshipit-source-id: 074a8e139e506a5dceec13f07d412599fb292d92
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/41526
CI failures in Windows JS tests recently (https://github.com/facebook/react-native/pull/41463) were caused by the triggering of Babel registration during tests, due to an import of `packages/dev-middleware` (index), breaking subsequent transformation of other tests.
## Root cause
Example of a problematic import:
a5d8ea4579/packages/dev-middleware/src/__tests__/ServerUtils.js (L15)
..which triggers a Babel registration:
a5d8ea4579/packages/dev-middleware/src/index.js (L16-L18)
That registration behaves differently on Windows due to the `ignore: [/\/node_modules\/\]`, which doesn't match against Windows path separators - Babel matches against system separators.
In particular, this changed whether `node_modules/flow-parser` was transformed when loading the RN Babel transformer. Transforming this file causes a `console.warn` from Babel due to its size:
> [BABEL] Note: The code generator has deoptimised the styling of /Users/robhogan/workspace/react-native/node_modules/flow-parser/flow_parser.js as it exceeds the max of 500KB.
This throws due to our setup:
a5d8ea4579/packages/react-native/jest/local-setup.js (L27)
This all manifests as the first test following a Babel registration (within the same Jest worker) that requires the RN Babel transformer throwing during script transformation.
## This change
This is the minimally disruptive change that makes Babel registration behaviour consistent between Windows and other platforms. The more durable solution here would be *not* to rely on any Babel registration for Jest, which has its own `ScriptTransformer` mechanism for running code from source. Given the fragile way our internal+OSS Babel set up hangs together that's a higher-risk change, so I'll follow up separately.
Changelog: [Internal]
Reviewed By: huntie
Differential Revision: D51424802
fbshipit-source-id: 8b733c0c159ee84690aef04abced682d126c6d27
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/39540
This simplifies the use of Codegen when creating dev builds of `rn-tester` in the monorepo. It now runs from source for this internal scenario, and this package is now built using the shared monorepo build setup.
Changes:
- Migrate `packages/react-native-codegen` to the shared `yarn build` setup.
- Update package to use `"exports"` field and wrap entry point modules with `babel-register` (NOTE: This is only required for each entry point internally used in the monorepo).
- Fixup small Flow syntax quirks that fail under `hermes-parser`.
- Remove `BuildCodegenCLITask` task from Android build.
- Remove Codegen `build.sh` call from iOS build, use `require.resolve` for `combine-js-to-schema-cli.js` entry point.
Externally significant FYIs:
- `react-native/codegen` is converted to use the `"exports"` field — it should export all `.js` files, as before.
- `codegenPath` is now ignored and marked as deprecated on `ReactExtensions.kt`.
NOTE: TypeScript auto-generation is not yet enabled on this package, since it uses CommonJS `module.exports` syntax (unsupported by `flow-api-translator`).
Changelog: [Internal]
Reviewed By: cipolleschi
Differential Revision: D49370200
fbshipit-source-id: 992913155169912ea1a3cb24cb26efbd3f783058
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/41051
Strictifies flow to flow strict-local in files where doing that doesn't cause new flow errors.
Changelog: Internal
Reviewed By: yungsters
Differential Revision: D50369011
fbshipit-source-id: b4a5a26b839b7327a3178e6f5b35246dea365a38
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/39429
Using `require` after `const registerFn = require('babel/register')` but before `registerFn(config)` causes Babel to transform required code with the default configuration (ie, using a nearby `babel.config.js`, if available).
This was causing the Babel plugins loaded by `metro-babel-register` to be (unnecessarily) transformed according to `babel.config.js`, which actually fails if the plugins/presets referenced in `babel.config.js` themselves require transformation.
This ensures no code is loaded in between registering Babel as a side effect of requiring Babel register, and replacing that hook with something explicitly configured.
## React Native
Changelog: [Internal]
## Metro
```
* **[Fix]:** `metro-babel-register` prevent arbitrary transformation of Babel plugins during registration setup
```
Reviewed By: dmytrorykun
Differential Revision: D49238671
fbshipit-source-id: 52a55b1b5dbd127171558c056f16ab04e8fa8232
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/39079
Changelog: [Internal]
The Babel config for Node packages in the RN repo, added in D47760330 / D48312463, relies on [name normalization](https://babeljs.io/docs/options#name-normalization) to resolve the Babel presets and plugins that it references. This works for OSS but can cause other integrations to fail to resolve the packages, depending on the details of how they're installed. Here we eagerly resolve the packages when constructing the Babel config.
Reviewed By: huntie
Differential Revision: D48469386
fbshipit-source-id: d9c15883169e30984d93fc6a5d9544752db5d2c8
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/38990
This PR adds auto-generation of Typescript definitions from Flow source code for packages using the shared monorepo build setup (https://github.com/facebook/react-native/pull/38718).
Today, these are the following Node.js packages:
- `packages/community-cli-plugin`
- `packages/dev-middleware` (⬅️ `emitTypeScriptDefs` enabled)
This also improves emitted Flow definitions (`.js.flow`), by using [`flow-api-translator`](https://www.npmjs.com/package/flow-api-translator) to strip implementations.
**All changes**
- Include `flow-api-translator` and configure this to emit type definitions as part of `yarn build`.
- Add translation from Flow source to TypeScript definitions (`.d.ts`) adjacent to each built file.
- Improve emitted Flow definitions (`.js.flow`), by using `flow-api-translator` to strip implementations (previously, source files were copied). The Flow and TS defs now mirror each other.
- Add `emitFlowDefs` and `emitTypeScriptDefs` options to build config to configure the above.
- Integrate TypeScript compiler to perform program validation on emitted `.d.ts` files.
- This is based on this guide: https://github.com/microsoft/TypeScript-wiki/blob/main/Using-the-Compiler-API.md#a-minimal-compiler.
- Throw an exception on the `rewritePackageExports` step if a package does not define an `"exports"` field.
- Add minimal `flow-typed` definitions for `typescript` 😄.
**Notes on [`flow-api-translator`](https://www.npmjs.com/package/flow-api-translator)**
This project is experimental but is in a more mature state than when we evaluated it earlier in 2023.
- It's now possible to run this tool on our new Node.js packages, since they are exclusively authored using `import`/`export` syntax (a requirement of the tool).
- As a safety net, we run the TypeScript compiler against the generated program, which will fail the build.
Changelog: [Internal]
Reviewed By: robhogan
Differential Revision: D48312463
fbshipit-source-id: 817edb35f911f52fa987946f2d8fc1a319078c9d
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/38795
## Context
RFC: Decoupling Flipper from React Native core: https://github.com/react-native-community/discussions-and-proposals/pull/641
## Changes
Inits new package `react-native/community-cli-plugin`. This migrates [`react-native-community/cli-plugin-metro`](https://github.com/react-native-community/cli/tree/main/packages/cli-plugin-metro) into the React Native repo, to enable faster iteration by the React Native core team. Specifically:
- This package contains several `metro` dependencies, which when removed from CLI will no longer require us to ship new CLI releases to get Metro patches and features to users.
- This package contains the `start`, `bundle`, and `ram-bundle` commands (central to the React Native development experience), for which we have incoming debugging-related changes.
- This package now **only** exports commands to be attached via a RN CLI plugin. With this move, we're aiming to **internalise** the default implementations of these dev commands within React Native — other RN CLI plugins can continue to override these, but must do so wholesale. (See also the recent fix for this: https://github.com/react-native-community/cli/pull/1999.)
In V15:
- (Microsoft feedback) Re-export `unstable_buildBundleWithConfig`, marking as unstable. This gives us a time buffer to consider how we repackage this functionality in future.
The package source has been converted from TypeScript to Flow, with a number of new `flow-typed/` defs added to meet type coverage requirements.
## To dos
- For now, we aren't removing the existing [`react-native-community/cli-plugin-metro`](https://github.com/react-native-community/cli/tree/main/packages/cli-plugin-metro) source — until later PRs consolidate this move by changing dependencies in the `react-native` package.
- **Exported API is reduced!**: I'm working with szymonrybczak to decouple references from RN CLI packages https://github.com/react-native-community/cli/pull/2021.
Changelog: [Internal]
Reviewed By: motiz88
Differential Revision: D46801501
fbshipit-source-id: 7f6b72941a69f487fb437768cdba125a9aa3418d
Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/38718
> NOTE: Replaces https://github.com/facebook/react-native/pull/38240
## Context
RFC: Decoupling Flipper from React Native core: https://github.com/react-native-community/discussions-and-proposals/pull/641
## Changes
To support incoming new React Native packages around debugging (including migrating over [`react-native-community/cli-plugin-metro`](https://github.com/react-native-community/cli/tree/main/packages/cli-plugin-metro)) — which target Node.js and require a build step, this PR adds a minimal shared build setup across the `react-native` monorepo.
The setup is closely inspired/based on the build scripts in Jest, Metro, and React Native CLI — and is a simple set of script wrappers around Babel. These are available as build commands at the root of the repo:
- `yarn build` — Builds all configured packages. Functionally, this:
- Outputs a `dist/` directory with built files.
- Rewrites package.json `"exports"` to update every `./src/*` reference to `./dist/*` (source of truth).
- `scripts/build/babel-register.js` — Allows running all Node.js entry points from source, similar to the current setup in [facebook/metro](https://github.com/facebook/metro). (Example entry point file in this PR: `packages/dev-middleware/src/index.js`)
Build configuration (i.e. Babel config) is shared as a set standard across the monorepo, and **packages are opted-in to requiring a build**, configured in `scripts/build.config.js`.
```
const buildConfig /*: BuildConfig */ = {
// The packages to include for build and their build options
packages: {
'dev-middleware': {target: 'node'},
},
};
```
For now, there is a single `target: 'node'` option — this is necessary as `react-native`, unlike the above other projects, is a repository with packages targeting several runtimes. We may, in future, introduce a build step for other, non-Node, packages — which may be useful for things such as auto-generated TypeScript definitions.
{F1043312771}
**Differences from the Metro setup**
- References (and compiles out) repo-local `scripts/build/babel-register.js` — removing need for an npm-published dependency.
## Current integration points
- **CircleCI** — `yarn build` is added to the `build_npm_package` and `find_and_publish_bumped_packages` jobs.
**New Node.js package(s) are not load bearing quite yet**: There are not yet any built packages added to the dependencies of `packages/react-native/`, so this will be further tested in a later PR (and is actively being done in an internal commit stack).
### Alternative designs
**Per-package config file**
Replace `scripts/build/config.js` with a package-defined key in in `package.json`, similar to Jest's [`publishConfig`](1f019afdcd/packages/jest-cli/package.json (L87C3-L89C4)).
```
"buildConfig": {
"type": "node"
},
```
This would be the only customisation required, with a single Babel config still standardised. Another option this might receive in future is `enableTypeScriptCodgeen`.
**Rollup**
More sophisticated build tool for Node.js, used by the React codebase (albeit within a custom script setup as well).
**Lerna and Nx**
- Most sophisticated setup enabling caching and optimised cloud runs.
- Probably the most likely thing we'll move towards at a later stage.
Changelog: [Internal]
Reviewed By: NickGerleman
Differential Revision: D47760330
fbshipit-source-id: 38ec94708ce3d9946a197d80885781e9707c5841
