nodenv-npm-migrate is a nodenv plugin that provides a nodenv migrate command to migrate npm packages from one Node version to another.

This plugin was forked from pyenv-pip-migrate.

• Installation
  • Installing as a nodenv plugin
  • Installing with Homebrew (for OS X users)
• Usage
  • Using nodenv migrate with nodenv
• Credits

Installing nodenv-npm-migrate as a nodenv plugin will give you access to the nodenv migrate command.

$ git clone [email protected]:nodenv/nodenv-npm-migrate.git "$(nodenv root)/plugins/nodenv-npm-migrate"

This will install the latest development version of nodenv-npm-migrate into the $(nodenv root)/plugins/nodenv-npm-migrate directory. From that directory, you can check out a specific release tag. To update nodenv-npm-migrate, run git pull to download the latest changes.

Mac OS X users can install nodenv-npm-migrate with the Homebrew package manager. This will give you access to the nodenv-migrate command. If you have nodenv installed, you will also be able to use the nodenv migrate command.

This is the recommended method of installation if you installed nodenv with Homebrew.

$ brew install nodenv/nodenv/nodenv-npm-migrate

Or, if you would like to install the latest development release:

$ brew install --HEAD nodenv/nodenv/nodenv-npm-migrate

nodenv-npm-migrate uses npm ls --global --depth=0 to dump all installed packages in a Node version, and then tries to npm install them into another version.

Let's say if you have following two versions in nodenv.

$ nodenv versions
* 0.12.0 (set by /home/jawshooah/.nodenv/version)
  iojs-1.6.2
$ npm ls --global --depth=0
/home/jawshooah/.nodenv/versions/0.12.0/lib
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
└── [email protected]

To migrate installed packages from 0.12.0 to iojs-1.6.2, use nodenv migrate.

$ nodenv migrate 0.12.0 iojs-1.6.2
$ nodenv global iojs-1.6.2
$ npm ls --global --depth=0
/home/jawshooah/.nodenv/versions/iojs-1.6.2/lib
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
└── [email protected]

Forked from Yamashita, Yuu's pyenv-pip-migrate by Josh Hagins and modified for nodenv.