#pnpm workspaces

[naturalrolli]

Pnpm workspaces

#PNPM WORKSPACES HOW TO#

#PNPM WORKSPACES INSTALL#

#PNPM WORKSPACES HOW TO#

You can read about how to configure it in the Nx docs. Nx also provides a cache mechanism, so it won’t execute a dependent task of a package that has not been modified since it was executed the last time, so you don’t have to care about the performance of running every dependent tasks always. Should we execute it manually before running the affected command? If we have twenty packages in the workspace, some of them containing a build command, and some others not, then should we create a build:affected script and execute it always before running the unit tests? Well, we could, but Nx provides a mechanism to define dependent tasks, so it detects whether any package have dependent tasks that should be executed before others, and it executes them in that case. Now we can run the unit tests of the affected packages with a single command, but, what about if the unit:test script in any package needs any other script to be executed before? For example, suppose that the sum-two package has a build script that must be executed before running the unit tests.

#PNPM WORKSPACES INSTALL#

We will install Jest in the workspace (as mentioned above, it is a devDependency, so we don’t have to install it on every single package):īut, if you create another branch and modify the packages/sum-one/index.js file, running pnpm test:unit:affected would execute the unit tests of both packages, because modifying sum-one also affects to sum-two. So, let’s add one unit test to our recently created package in order to see an example. The scripts of each project can be executed independently from each package folder, and we can also define scripts for the workspace. And we can also use executables of the dependencies installed in the workspace from the npm scripts of the packages! 🥳 Project and workspace scripts Note that the dependencies of all packages in the repository are installed when pnpm i is executed in the root folder. Otherwise, they will be missing when the packages are published. but note that the dependencies of each package (those required to work once they are published) must remain on their own package.json files. The one in the root folder should contain shared devDependencies across many projects, such as test, build or lint libraries, etc. Now we have two package.json files in the repository. exports = sumOne Project and workspace dependencies Here we are going to use npm to install it:įunction sumOne ( number ) There are many methods for installing it, you can check them all in the Pnpm installation docs. Installing PnpmĪs seen in the previous post, we are going to use Pnpm mainly to be able to link packages locally using its workspace feature.įirst of all you have to install Pnpm globally in order to use it as Npm client and to run the package.json scripts that we will create in next steps. I also like to keep integration or E2E tests in a different folder. In this case, all packages could be distributable and dependencies of other ones, that’s why the folder is named packages. Nx recommends as best practices to have an app folder and a libs folder for reusable libraries, but in my opinion that structure is more recommendable if you are going to include also front-end projects or other type of not versioned and distributable applications. You could store your packages depending of their type in different folders, for example. The name of the folders is something that can be changed at your convenience.

[arizonamains]

Pnpm workspaces

#Pnpm workspaces how to

#Pnpm workspaces free

app centric repositories which are used mainly for developing applications and products.Those repos are characterized by most commonly having a packages folder and which are then commonly published to some public registry such as NPM. This is a common setup in the open source world and can be seen in repositories such as Angular, React, Vue and many others. package centric repositories which are used for developing and publishing a cohesive set of reusable packages.There are generally two kinds of monorepo: The structure of a monorepo might vary depending on what you plan to use it for. This will be the root package.json for our PNPM monorepo.Įnter fullscreen mode Exit fullscreen mode Let's create a new folder named pnpm-mono, cd into it and then run pnpm init to generate a top-level package.json. I also recommend using something like Volta in particular if you have to deal with multiple different versions of NPM/PNPM and node versions. The official docs have an installation page with detailed instructions. To get started, let's make sure you have PNPM installed. Defining task dependencies (aka build pipeline).Consuming our shared-ui package from the Remix app.

#Pnpm workspaces free

Important: If you are already familiar with the setup and configuration of a new PNPM workspace, feel free to skip to the part where we add Nx later in the article.

#Pnpm workspaces how to

We will learn how to run commands with PNPM, how to run them in parallel and finally we're going to add Nx for a more sophisticated task scheduling, including command caching and more. Otherwise, stick with the thing everyone is comfortable using.In this article we're going to have a deep dive into setting up a new monorepo using PNPM workspaces that hosts a Remix application as well as a React based library. To sum it all up, if you have a monorepo or performance issues with NPM, consider using an alternative option like PNPM or Yarn. I came across PNPM and it was instantly beneficial to me, so I stuck with it. That said, I don't feel like I can fairly evaluate the two because I don't have enough experience with Yarn Workspaces. Its approach to structuring the node_modules directory is of great benefit when managing several projects with package.json files in the same repository. PNPM, on the other hand, seems very much focused on monorepo support. Yarn has a feature called Workspaces that is geared toward making Yarn work well for monorepos. Yarn has significant performance improvements over NPM, and it's a more popular and accepted option when compared to PNPM.Īnd if your project is a monorepo, PNPM and Yarn are both good options. When NPM's performance becomes an issue, I'd likely first switch to Yarn. Generally speaking, I'd say no, not necessarily! There's a ton of value in using the ubiquitous option - which, unlike the word ubiquitous, is the one people best understand and are most comfortable using.īut there are two scenarios in which I'd welcome a change: Is it really a good idea to use an NPM alternative when the default (NPM) actually works fine, but is maybe a bit slow? And, like Yarn, it's much much faster than plain old NPM. It's like Yarn in that it is a command-line tool that helps you manage JavaScript project dependencies using the NPM registry. That may lead you to the question I asked when I first heard about PNPM: Is it just another NPM alternate? PNPM stands for Performant NPM, which means it stands for performant node package manager.