Pnpm-deduplicate NPM

🎉 The official built-in pnpm dedupe command is added since pnpm v7.26.0, so this project is retired. 🎉

pnpm-deduplicate

Remove duplicate dependencies from pnpm-lock.yaml.

This project is simple and not have many features. I see it as a temporary solution until we have official built-in pnpm deduple command. Pull requests are welcome!

Support this project by giving it a :star: on GitHub.

Install

pnpm install -g pnpm-deduplicate

Usage

Remove duplicates

Go to your project's root directory and run the following command to remove duplicate dependencies:

pnpm-deduplicate

List duplicates

If you only want to list duplicates instead of update pnpm-lock.yaml, run:

pnpm-deduplicate --list

You will get a list of duplicates like this:

Package "@babel/core" wants ^7.17.10 and could get 7.18.2, but got 7.18.0
Package "@babel/core" wants ^7.15.5 and could get 7.18.2, but got 7.18.0
Package "@babel/core" wants ^7.7.5 and could get 7.18.2, but got 7.18.0
Package "@babel/generator" wants ^7.7.2 and could get 7.18.2, but got 7.18.0
Package "@babel/generator" wants ^7.18.0 and could get 7.18.2, but got 7.18.0

This command will return a non-zero exit code if there are duplicates. You can use it in CI to check if there are duplicates.

Solutions for other package managers

For Yarn v1, you can use yarn-deduplicate.

For Yarn v2 or greater version, you can use the built-in yarn dedupe command.

For NPM, you can use the built-in npm dedupe command.

For PNPM, use this tool!

Also, removing node_modules folder as well as the lock file (i.e. yarn.lock, package-lock.json or pnpm-lock.yaml) is another option. This will update all your dependencies to the latest version that matches the version range in your package.json, which could break your project.