installros.sh

#!/bin/sh -e
# 2022 Bimalka Piyaruwan Thalagala

################################################################################
#	A simple script,                                                       	   #
#       to install/build the dependencies                                      #
################################################################################

# 1. inbstalling ros noetic
install_ros () {

    echo
    echo "==========================================================="
	echo "|          Install ROS Noetic Ninjemys (ROS1)             |"
    echo "==========================================================="
    echo

 	# Configure your Ubuntu repositories
	sudo add-apt-repository universe
	sudo add-apt-repository multiverse
	sudo add-apt-repository restricted
	
	# Setup your sources.list
	sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
	
	# Set up your keys
	sudo apt install curl
	curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
	
	# system upgrade
	sudo apt update
	sudo apt upgrade
	
	# Installation: Desktop-Full Install: (Recommended)
	# Everything in Desktop plus 2D/3D simulators and 2D/3D perception packages
	sudo apt install ros-noetic-desktop-full

	# Environment setup: utomatically source the ROS script
	echo "source /opt/ros/noetic/setup.bash" >> ~/.bashrc

	# Dependencies for building packages
	sudo apt install python3-rosdep python3-rosinstall python3-rosinstall-generator python3-wstool build-essential

	
}

# 2. Catkin-tools package provides command line tools for working with the catkin meta-buildsystem and catkin workspaces.
install_catkin() {

	# https://catkin-tools.readthedocs.io/en/latest/installing.html
	# First you must have the ROS repositories which contain the .deb for catkin_tools:
	sudo sh \
    -c 'echo "deb http://packages.ros.org/ros/ubuntu `lsb_release -sc` main" \
        > /etc/apt/sources.list.d/ros-latest.list'
	
	# Once you have added that repository, run these commands to install catkin_tools:
	sudo apt-get update
	sudo apt-get install python3-catkin-tools

}

create_ros_ws () {

	# change the directory to home
	cd

	# make separate dir in home dir
	mkdir ros && cd ros

	# create a workspace
	mkdir -p catkin_ws/src

	# change the dir
	cd catkin_ws

	# ros is already sourced from the previous installation step

	# initialize the catkin workspace
	catkin init
}

# main function 
main () {
    
	# installing ROS1 default building
	install_ros

	# install catkin CLI tool
	install_catkin

	# create ros workspace
	create_ros_ws

}
main "$@"