Nick Gerleman
a28867f952
Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/48237 Noticed this when trying to diagnose what seemed like a stale caching issue. It effectively reverts D59917944. D59917944 added logic to only do yarn caching on main, but it has some correctness issues: 1. We cache `node_modules` instead of the yarn cache, which may contain e.g. build artifacts, or other scratch/cache files written (such as anything that writes to `node_modules/.cache`). We really want to be caching the yarn cache, which has pristine packages before install, which I think it will also need to perform the real install anyways. 2. We key the cache on root `package.json`, which is missing a lot of information (both provided by the other `package.json` in the repo, but mostly, the lockfile resolution). We only save cache when we're on `refs/heads/main` (so continuous builds against main), and supposedly, builds against base branch should be able to restore against those, but recent PR jobs I have seen, where `package.json` has not changed, all have `Cache not found for input keys: node-modules-068350889e87919c1c6c2c220c8d2d92db13f38820bf2efb315d1274b97bc367` Because of the potential correctness issues, and that the strategy for limiting to main seemingly is not allowing cache to be used in PR, this diff goes back to previous solution, which may store more artifacts (but working cache should also reduce cost by making jobs run faster). Changelog: [Internal] Reviewed By: cipolleschi Differential Revision: D67140004 fbshipit-source-id: f74074a498af56b1837fa23cf80795f76935b762
React Native
Learn once, write anywhere:
Build mobile apps with React.
Getting Started · Learn the Basics · Showcase · Contribute · Community · Support
React Native brings React's declarative UI framework to iOS and Android. With React Native, you use native UI controls and have full access to the native platform.
- Declarative. React makes it painless to create interactive UIs. Declarative views make your code more predictable and easier to debug.
- Component-Based. Build encapsulated components that manage their state, then compose them to make complex UIs.
- Developer Velocity. See local changes in seconds. Changes to JavaScript code can be live reloaded without rebuilding the native app.
- Portability. Reuse code across iOS, Android, and other platforms.
React Native is developed and supported by many companies and individual core contributors. Find out more in our ecosystem overview.
Contents
- Requirements
- Building your first React Native app
- Documentation
- Upgrading
- How to Contribute
- Code of Conduct
- License
📋 Requirements
React Native apps may target iOS 15.1 and Android 7.0 (API 24) or newer. You may use Windows, macOS, or Linux as your development operating system, though building and running iOS apps is limited to macOS. Tools like Expo can be used to work around this.
🎉 Building your first React Native app
Follow the Getting Started guide. The recommended way to install React Native depends on your project. Here you can find short guides for the most common scenarios:
📖 Documentation
The full documentation for React Native can be found on our website.
The React Native documentation discusses components, APIs, and topics that are specific to React Native. For further documentation on the React API that is shared between React Native and React DOM, refer to the React documentation.
The source for the React Native documentation and website is hosted on a separate repository, @facebook/react-native-website.
🚀 Upgrading
Upgrading to new versions of React Native may give you access to more APIs, views, developer tools, and other goodies. See the Upgrading Guide for instructions.
React Native releases are discussed in this discussion repo.
👏 How to Contribute
The main purpose of this repository is to continue evolving React Native core. We want to make contributing to this project as easy and transparent as possible, and we are grateful to the community for contributing bug fixes and improvements. Read below to learn how you can take part in improving React Native.
Code of Conduct
Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read the full text so that you can understand what actions will and will not be tolerated.
Contributing Guide
Read our Contributing Guide to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React Native.
Open Source Roadmap
You can learn more about our vision for React Native in the Roadmap.
Good First Issues
We have a list of good first issues that contain bugs which have a relatively limited scope. This is a great place to get started, gain experience, and get familiar with our contribution process.
Discussions
Larger discussions and proposals are discussed in @react-native-community/discussions-and-proposals.
📄 License
React Native is MIT licensed, as found in the LICENSE file.
React Native documentation is Creative Commons licensed, as found in the LICENSE-docs file.