abejfehr / fast-nvm-switcher

A utility for speeding up nvm installations

⚡️ Fast nvm switcher

Is your nvm slow? This repository provides some suggestions (and a utility) for speeding up nvm in your shell.

Speeding up a basic installation

The most expensive part of having nvm installed on your machine is running nvm.sh in a new shell.

That's the second line in the initialization below:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

Simply define your own nvm function right in your shell configuration that loads nvm only when you call it, like so:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

function nvm() {
  [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm

  nvm $@
}

Deeper shell integration

For the zsh shell hook that automatically switches node versions on directory change, you can simply start by downloading the resolve_node_version binary to your .nvm folder:

curl -o- https://raw.githubusercontent.com/abejfehr/fast-nvm-switcher/v0.1.6/install.sh | bash

And follow the instructions given.

Once you've complete that, changing directories should now also be blazing fast ⚡️

Note: If you already use one of the "Deeper shell integrations" from the nvm README, you'll have to remove those before following these instructions.

Limitations

• This script only supports the 'default' alias, it won't work with 'lts' or other custom aliases
• The resolve_node_version utility does not update the $MANPATH environment variable