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Nuño's Stupid Node Version Manager

The problem

Current node version managers, such as nvm or asdf are too slow. In particular, they add half a second to a few seconds when loaded with bash.

If you are using nvm, you can test its slowness by removing these lines from your .bashrc:

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

or just by noticing that nvm.sh has 4k+ lines.

The solution

Write a stupidly simple node version manager which is significantly simpler, hackier, less featureful, and less secure, but much faster.

Usage

Use this software at your own risk. In particular, strongly consider reading the 43 lines of source code to understand what it does.

Read the nsnvm.sh file, then execute it like:

./nsvnm.sh 18.12.1

You can check node versions here or here. If you type no version number, nsnvm will give you the latest 10 version numbers.

Instalation

chmod +x nsnvm.sh
sudo cp nsnvm.sh /usr/bin/nsnvm

Downsides

This setup will wreck your existing global node package installations, i.e., packages installed with npm -g package_name. To fix this, install global packages again after installing a new node version. nsnvm will also give you a hint to add to your PATH the directory in which npm global packages are located.

Contributions

Contributions are welcome as long as they keep with the overall theme of simplicity.

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