Recursively pack all dependencies of an npm project

retrieve_npm_packages.sh

#!/bin/sh

# This script will run npm pack on every dependency and dependencies of a dependency
# on 8 threads. It's useful if you want to then upload everything to a private registry.

mkdir packages
cd packages || exit 1

# There is some unwanted garbage in the output of `npm ls` hence the inverted greps
npm ls --all --registry https://registry.npmjs.org 2> /dev/null |
	grep -v deduped |
	grep -v 'UNMET OPTIONAL DEPENDENCY' |
	grep -v '__ngcc_entry_points__' |
	sed 's/^.* //g' |
	sort |
	uniq |
	xargs -P 8 npm pack