neovim fetch and install script

update-nvim.sh

#!/bin/sh

if [ -z "${1}" ]; then
        echo "Enter nvim release number"
        read VERSION
else
        VERSION=${1}
fi

ARCHIVE="nvim-linux64.tar.gz"
URL="https://github.com/neovim/neovim/releases/download/v${VERSION}/${ARCHIVE}"
INSTALL_HOME="${HOME}/.local"
RUNTIME_DIR="share/nvim/runtime"

fetch () {
        echo "Fetching nvim archive from '${URL}'"
        curl -sSLO "${URL}"
}

extract () {
        echo "Removing runtime directory at '${INSTALL_HOME}/${RUNTIME_DIR}'"
        rm -rfI "${INSTALL_HOME}/${RUNTIME_DIR}"
        tar -x -f "${ARCHIVE}" -C "${INSTALL_HOME}" -v -z --strip-components=1
}

fetch
extract