Changing node versions automatically per directory
Working in multiple Node projects sometimes means using different versions of Node. nvm ↗︎ is one popular solution for Linux, macOS and Windows WSL that handles multiple Node installations. One of its most unknown tricks is the deeper shell integration ↗︎. Check the video:
If you are using macOS Catalina, you are probably using ZSH as default shell. To make the magic happen, paste the following in ~/.zshrc file.
~/.zshrc
# place this after nvm initialization!
autoload -U add-zsh-hook
load-nvmrc() {
local node_version="$(nvm version)"
local nvmrc_path="$(nvm_find_nvmrc)"
if [ -n "$nvmrc_path" ]; then
local nvmrc_node_version=$(nvm version "$(cat "${nvmrc_path}")")
if [ "$nvmrc_node_version" = "N/A" ]; then
nvm install
elif [ "$nvmrc_node_version" != "$node_version" ]; then
nvm use
fi
elif [ "$node_version" != "$(nvm version default)" ]; then
echo "Reverting to nvm default version"
nvm use default
fi
}
add-zsh-hook chpwd load-nvmrc
load-nvmrcAfter restarting your terminal, nvm will automatically change the version of Node based in the current folder.