Easy ZSH/Bash alias for swapping Node versions on the fly

switch-brew-node.sh

# Switch Node version in brew
# Place this in your ~/.bashrc or similar for autoload into your shell
function nodesw() {
    if [ -z "$1" ]; then
        logInfo "You need to provide a Node formulae version to switch to in format:"
        logInfo "$ nodesw 16"

        if command -v jq >/dev/null 2>&1; then
            logInfo "Installed Node versions via Brew:"
            brew info --json node | jq -r '.[].versioned_formulae[]'
        else
            logInfo "Please install jq to list installed Node versions via: $ brew install jq"
        fi

        return 1
    fi

    local nodeFormulaeVersion="node@$1"

    if brew ls --versions $nodeFormulaeVersion > /dev/null; then
        logInfo "${nodeFormulaeVersion} is already installed, continuing..."
    else
        logInfo "${nodeFormulaeVersion} is not installed, installing..."

        brew install $nodeFormulaeVersion

        logInfo "${nodeFormulaeVersion} installed!"
    fi

    logInfo "Now linking ${nodeFormulaeVersion} and making it active!"

    brew unlink node && brew link --force --overwrite $nodeFormulaeVersion

    logInfo "Done! ${nodeFormulaeVersion} is now active:"

    node -v
}