Download an npm package, and compress it to a zip archive. No unnecessary files left behind.

download-npm.sh

# Usage: download-npm.sh <package-name>
#!/bin/bash

set -e
set -u

NC='\033[0m'
LIGHT_GREEN='\033[1;32m'

libName="$1"

function sanitize {
	sed 's|[@/]|_|g' <<< "$1" # '/' is bad because of filesystem stuff and '@' is bad because of a reason I already forgot
}

# Sanitize folder name
dirName="$(sanitize $libName)_npm-libs"

mkdir "$dirName"
cd "$dirName"

npm init --yes

# Get lib version
installOutput=$(npm install $libName)
echo "$installOutput"
libVersion=$(echo "$installOutput" | grep "+ $libName@" | grep -oP "@\K[\d.]+$")

cd ..
echo "Compressing to Zip..."
archiveName="$(sanitize $libName)@${libVersion}.zip"
zip -q -r "$archiveName" "./$dirName"

echo "Cleaning up..."
find "./$dirName" -delete
echo -e "${LIGHT_GREEN}Saved package to $archiveName ${NC}"