Simple Node version control

.bash_node_v

# How to use it
#   copy the code into .bashrc our download the .bash_node_v file into your home
#   and add to your .bashrc or .bash_profile:
#     source .bash_node_v
#
#   Configure it creating a .nrc (in your home or in the same folder you put this file) and add 
#   the folder where you want to install the node versions, for instance:
#   NODE_PREFIX="/Software/node/"
#

CONFIGS=~/.nrc

[ -f ${CONFIGS} ] || {
	echo -e "\033[33mNo .nrc file found in your home to configure node_v\033[0m"
	# Do not exit otherwise it will terminate the shell
	# exit -2
	return
}

source ${CONFIGS}

ORIG_PATH=$PATH

n() {
    if [ "$#" -lt 1 ]; then
        echo -e "\033[94mNode version $(node -v)\033[0m"
        return 1
    fi  

    local version=$1
    local arch=$(uname -s | tr '[:upper:]' '[:lower:]')
    arch="${arch}-x64"
    local node_prefix="${NODE_PREFIX}/node-v${version}-${arch}"
    local fix_node_path="${node_prefix}/lib/node"
    if [ -d "${NODE_PREFIX}/node-v${version}-${arch}" ] ; then
        echo -e "\033[32mUsing ${version}\033[0m"
        export PATH="${node_prefix}/bin:$ORIG_PATH"
        export NPM_CONFIG_PREFIX=${node_prefix}
        # we can export NODE_PATH but this can be overwriten by other person
        # or scripts.... to prevent any issue lets just create a link ^.^
        # export NODE_PATH="${node_prefix}/lib/node_modules"
        if [ ! -L "${fix_node_path}" ]; then
            if [ -e "${fix_node_path}" ]; then
                echo -e "\033[31m${fix_node_path} expected to be a sym link!\033[0m"
                return 1
            else
                ln -s "${fix_node_path}_modules" "${fix_node_path}" || { echo  -e "\033[31mFailed to creat sym link ${fix_node_path}!\033[0m" ; return 1 ; }
            fi
        fi
    else
        echo -e "\033[31mVersion not found!\033[0m"
        echo -e "\033[33mWe will try to install it!\033[0m"

        pushd ${NODE_PREFIX}
        local url="https://nodejs.org/dist/v${version}/node-v${version}-${arch}.tar.gz"
        local file="node-v${version}-${arch}.tar.gz"
        # Download tar.gx and test if 200 ^.^
        local httpStatusCode=$(curl "${url}" -o "${file}" -w "%{http_code}")
        [ $httpStatusCode -ne 200 ] && { echo  -e "\033[31mVersion ${version} not found on server! [${url}]\033[0m" ; return 1 ; } 
        # Extract it
        tar -xf "${file}" || { echo  -e "\033[31mError extraction file ${NODE_PREFIX}/$file\033[0m" ; return 1 ; } 
        popd
    
        if [ "$2" == "retry" ] ; then
            echo -e "\033[33mRun:\nn ${version}\033[0m"
            return 1
        else
            n $version "retry"
        fi  
    fi  
}

export n