$ yarn add -dev -W react react-dom styled-components We’ll be using React and styled-components to develop our UI components, so let’s install those first. Let’s create some packages for it to consume. We have completed the infrastructure for a Monorepo. We’ll be utilizing a similar approach for testing later. This prevents each package from having the same node_modules and extracts them up to the root. This tells Babel the node_modules are located in the root instead of nested inside each of the individual packages. Using -root-mode upward is the special sauce to using Yarn workspaces. We don’t want to include any tests or stories (which we’ll get to later) in the compiled output. This command instructs Babel to run in parallel over every package, pulling from the /src folder and compiling into the /lib folder. lerna exec will take any command and run it over all of the different packages. This creates a package.json file for your project. $ mkdir monorepo $ cd monorepo $ npx lerna init Okay, let’s begin! First, let’s create a new project and set up Lerna. You can either follow along or view the finished repo here. □ Babel - Compiles next-gen JavaScript.□ styled-components - CSS in JS elegance.□ React - JavaScript library for user interfaces.□ Yarn Workspaces - Sane multi-package management.Several large JavaScript projects use monorepos including: Babel, React, Jest, Vue, Angular, and more. For example, with one Lerna command, you can iterate through all the packages, running a series of operations (such as linting, testing, and building) on each package. Lerna also provides high-level commands to optimize the management of multiple packages. This makes it faster to iterate locally when building components that depend on each other. Monorepo) without forcing us to publish to NPM until we are ready. Lerna and Yarn Workspaces give us the ability to build libraries and apps in a single repo (a.k.a. Consumer A now needs a bug fix for the one component they use.They’ve helped create and modify other components in the package and it’s grown large. Consumer B uses the package for all the components.Consumer A only needs the package for one component and is on v1.This means we should only include the code we’re using in our bundle.Īlong with this, when developing shared component libraries, we want to have semver over individual pieces instead of the entire package. ![]() To make our applications as performant as possible, we need to have small bundle sizes. If you update a base component, you now have to update its consumers, its consumer’s consumers, etc. Now we’ve increased the bundle size for something 95% of consumers won’t use. Do we need to create a new repo for this button? Let’s put it together with this other package. It promotes bundling unnecessary components.Before you know it, you have dozens of different package repositories repeating the same build, test, and release process. However, this becomes a problem for a few reasons: Historically, we’ve had separate repositories for each package. api and web) but not in the root package.json - and the default in the CRWA is to set the workspace versions to 0.0.0 with the expectation that you will manage versioning for each separately.As applications scale, you’ll inevitably reach a point where you want to write shared reusable components which can be used everywhere. Yarn’s docs on versioning show using versions in each “side” (workspace, e.g. Your Redwood app is a monorepo using Yarn Workspaces. yarn create redwood-app my-redwood-app) is an issue for yarn. Adding a version field to the top level package.json of an app created with CRWA (e.g.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |