Automate the installation of both NVM and the currently defined .nvmrc node version

install-nvm-update-node.sh

#!/bin/bash

export NVM_DIR=$HOME/.nvm;
source $NVM_DIR/nvm.sh;

# Check if xcode command line tools are installed (required)
if xcode-select -p &> /dev/null && xcrun --version &> /dev/null; then
  echo "XCode command line tools are installed ✅"
else
  echo "XCode command line tools need to first be installed. Please install them at the next prompt and then run this script again."
  xcode-select --install
  exit 1
fi

# Check if nvm is installed
if command -v nvm &> /dev/null
then
  echo "nvm is installed ✅"
else
  echo "nvm is not installed. Installing now"
  curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash

  if [[ -d "${NVM_DIR}" ]]; then
    NVM_EXPORT='
    export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
    [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
    '

    SHELL_TYPE=$(echo $SHELL)

    if [[ $SHELL_TYPE == *"zsh"* ]]; then
      echo "Updating zshrc file..."
      echo $NVM_EXPORT >> ~/.zshrc
      source ~/.bash_profile
    elif [[ $SHELL_TYPE == *"bash"* ]]; then
      echo "Updating bash_profile..."
      echo $NVM_EXPORT >> ~/.bash_profile
      source ~/.bash_profile
    else
      echo "Unsupported shell: $SHELL_TYPE"
      exit 1
    fi
  else
    echo "The NVM directory already exists. Skipping profile updates..."
  fi
fi

# Check if the node version from package.json is installed
NODE_VERSION=$(cat .nvmrc)
if ! nvm ls | grep -q $NODE_VERSION; then
  echo "$NODE_VERSION is not installed. Installing..."
  nvm install $NODE_VERSION
fi

# Use the specified node version
echo "Switching node version to version: $NODE_VERSION..."
nvm use $NODE_VERSION

# Set current node version to default
echo "Setting default node version to: $NODE_VERSION..."
nvm alias default $NODE_VERSION