Install rust using rustup

install_rust.sh

#!/bin/bash
dir=$(dirname "$0")

#
# DESC: Install Rust language and rust tools
#

reset=`tput sgr0`

 red=`tput sgr0; tput setaf 1`
bRed=`tput bold; tput setaf 1`
rRed=`tput rev;  tput setaf 1`

 green=`tput sgr0; tput setaf 2`
bGreen=`tput bold; tput setaf 2`
rGreen=`tput rev;  tput setaf 2`

yellow=`tput setaf 3`
blue=`tput setaf 4`
magenta=`tput setaf 5`
cyan=`tput setaf 6`
white=`tput setaf 7`
black=`tput setaf 0`

bold=`tput bold`


APT=/usr/bin/apt-get
APT_CACHE=/usr/bin/apt-cache
DPKG=/usr/bin/dpkg

#
# pkg_install <package> [<command>]
#    Install a package from apt repositories
#    example:  pkg_install tmux
#              pkg_install tmux tmux
#
function pkg_install() {
    pkg=$1
    cmd=$2
    set +e

    # Check if package exists
    pkg_name_exist=`${APT_CACHE} pkgnames | grep "^${pkg}$"`
    if [[ "${pkg_name_exist}" == "${pkg}" ]];  then
        # Check if package allready installed
        ${DPKG} --get-selections | grep -q "^${pkg}[[:space:]]*install$"
        if [[ "$?" == "1" ]];  then
            # Warning if command exists on path
            if [[ ! "${cmd}" == "" ]];  then
                if [ -x "$(command -v ${cmd})" ] ; then
                    echo "${magenta}${cmd} is allready installed in '${blue}$(command -v ${cmd})${reset}'."
                fi
            fi
            # Do the installation
            echo "${green}Installing package '${bGreen}${pkg}${green}'...${reset}"
            sudo ${APT} install -y ${pkg}
            # Check if package failed to install
            if [ $? != 0 ]; then
                echo "${bRed}ERROR:${red}package ${pkg} failed do installl.${reset}"
            else
                # If cmd show the binary
                if [[ ! "${cmd}" == "" ]];  then
                    echo "${green}${cmd} is installed in '${blue}$(command -v ${cmd})${reset}'"
                fi
            fi
        else
            echo "${yellow}Skipping installation of package '${bold}${pkg}${reset}${yellow}'...${reset}"
            # If cmd show the binary
            if [[ ! "${cmd}" == "" ]];  then
                echo "${yellow}${cmd} is installed in '${blue}$(command -v ${cmd})${reset}'"
            fi
        fi
    else
        echo "${red}${bold}ERROR:${reset}${red}package ${pkg} is not at the repositories${reset}"
    fi 
}

function install_rust() {

	pkg_install curl curl
	pkg_install build-essential gcc

	if [ ! -x "$(command -v rustup)" ] ; then
		echo "${green}Installing Rust language using ${bGreen}'rustup'${reset}"
		curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
		echo "${green}rustup is installed in '${blue}$(command -v rustup)${reset}'"
	else
		echo "${yellow}rustup is installed in '${blue}$(command -v rustup)${reset}'"
	fi	
}

function crate_install() {
	pkg=$1
    cmd=$2
    if [[ "${cmd}" == "" ]];  then
        cmd=${pkg}
    fi

	if [ ! -x "$(command -v rustup)" ] ; then
		install_rust
	fi

	if [ ! -x "$(command -v ${cmd})" ] ; then
		info_msg "Installing crate ${cmd} using ${bGreen}'rustup'${reset}"
		cargo install ${pkg}
		echo "${green}${cmd} is installed in '${blue}$(command -v ${cmd})${reset}'"
	else
		echo "${yellow}Skipping installation of crate '${bold}${cmd}${reset}${yellow}'...${reset}"
		echo "${yellow}${cmd} is installed in '${blue}$(command -v ${cmd})${reset}'"
	fi
}

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