NodeJS, Ruby, and .NET install script for Ubuntu 18.04 'bionic'

linux-devel-setup.sh

#!/bin/bash

# The 'get you set up w/ NodeJS, Ruby, and .NET on Linux' script
#
# Pre-req: Ubuntu Bionic (18.04) desktop or server
#
# Note:  This script makes a few assumptions for you:
# 1) If you don't have RVM and Ruby installed, this script will download and source it for you.  
#   DO NOT EXECUTE this script if you already have Ruby installed and not currently using RVM.
# 2) If you don't have a ~/.npm-global available, this script will create it for you.
# 3) If you don't have dotnet installed, this script will create it for you.
#
# Additional notes:
# If you want to setup Nginx w/ KeystoneJS (NodeJS), see my nginx-keystone.sh gist.  
# If you want to setup Nginx w/ GrandNode (.NET), see my nginx-grandnode.sh gist.
# If you want to setup Nginx w/ Rails (Ruby), see my nginx-rails.sh gist.
#
# All 3 gists require this current script and mongodb-setup.sh as a pre-requisites. 
# All 3 can be executed on the same server without breaking anything once nginx is intalled.

if [ -d $HOME/.npm-global ]; then
  echo "~/.npm-global exists in your path."
else
  echo "********************* NODEJS & NPM INSTALL ***********************"
  echo "Installing nodejs and npm.  Also adding ~/.npm-global to your path"
  echo "You may be prompted for root credentials to complete the install."
  echo "******************************************************************"
  
  mkdir ~/.npm-global
  
  echo -e "export NPM_CONFIG_PREFIX=$HOME/.npm-global" >> ~/.bashrc
  echo -e "PATH=$PATH:$HOME/.npm-global/bin" >> ~/.bashrc  
    
  curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
    
  sudo bash -c "apt update && apt upgrade -y" 
  sudo bash -c "apt install nodejs -y"
  
  sudo bash -c "npm config set prefix '/home/$USER/.npm-global'" 
  sudo bash -c "chown $USER:$USER -R $HOME/.config"
fi

if [ -d $HOME/.npm-global/lib/node_modules/yo ]; then
  echo "NPM package 'yo' exists globally via ~/.npm-global"
else
  echo "************************** YO INSTALL ****************************"
  echo "Installing NPM package 'yo'."
  echo "******************************************************************"
  
  sudo bash -c "apt update && apt upgrade -y"
  npm install -g yo
fi

if [ -d $HOME/.npm-global/lib/node_modules/pm2 ]; then
  echo "NPM package 'pm2' exists globally via ~/.npm-global"
else
  echo "************************* PM2 INSTALL ****************************"
  echo "Installing NPM package 'PM2'."
  echo "******************************************************************"
  
  sudo bash -c "apt update && apt upgrade -y"
  npm install -g pm2  
fi

if [ -d $HOME/.npm-global/lib/node_modules/generator-keystone ]; then
  echo "NPM package 'generator-keystone' exists globally via ~/.npm-global"
else
  echo "*********************** KEYSTONE INSTALL *************************"
  echo "Installing NPM package 'generator-keystone'."
  echo "******************************************************************"
  
  sudo bash -c "apt update && apt upgrade -y"
  npm install -g generator-keystone
fi

if [ -d $HOME/.rvm ]; then
  echo "RVM /w Ruby is not installed on your machine."
else  
  echo "********************** RVM & RUBY INSTALL ************************"
  echo "RVM /w Ruby is not installed."
  echo "You may be prompted for root credentials to complete the install."
  echo "******************************************************************"
  
  sudo bash -c "apt update && apt upgrade -y"
  
  gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
  curl -sSL https://get.rvm.io | bash -s stable --ruby
  
  echo -e "source $HOME/.rvm/scripts/rvm " >> ~/.bashrc 
  source $HOME/.rvm/scripts/rvm
  
  gem install bundler rails
fi

if [ -f /usr/bin/dotnet ]; then
  echo "Dotnet is installed on your machine."
else  
  echo "************************ DOTNET 2.1 INSTALL **************************"
  echo "Installing .NET."
  echo "You may be prompted for root credentials to complete the install."
  echo "******************************************************************"
  
  sudo bash -c "add-apt-repository universe && apt update && apt upgrade -y" 
  
  wget https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb
  sudo bash -c "dpkg -i packages-microsoft-prod.deb"
  
  sudo bash -c "apt install apt-transport-https"
  sudo bash -c "apt update && apt upgrade -y"
  sudo bash -c "apt install dotnet-sdk-2.1 -y"
  
  export DOTNET_CLI_TELEMETRY_OPTOUT=1
  echo -e "export DOTNET_CLI_TELEMETRY_OPTOUT=1" >> ~/.bashrc
fi

if [ -f /usr/bin/mongoimport ]; then
  echo "MongoDB is installed on your machine."
else
  echo "******************* MongoDB CLIENT TOOLS 4.0 INSTALL ********************"
  echo "MongoDB Client Tools are is not installed."
  echo "You may be prompted for root credentials during the install."
  echo "Don't forget to set bind to 0.0.0.0 in /etc/mongod.conf on remote server."
  echo "*************************************************************************"
  
  wget -qO- https://www.mongodb.org/static/pgp/server-4.0.asc | sudo bash -c "apt-key add"
  
  sudo bash -c "echo deb http://repo.mongodb.org/apt/ubuntu bionic/mongodb-org/4.0 multiverse > /etc/apt/sources.list.d/mongodb-org.list"
  sudo bash -c "apt update && apt upgrade -y"
  sudo bash -c "apt install mongodb-org-tools mongodb-org-shell -y"
fi
  
sudo bash -c "apt autoremove && apt clean -y"
sudo bash -c "ufw allow ssh && ufw enable"

echo "Script complete."

TODO: Clean up....I don't like the way I've relied on sourcing .bashrc in this script.