install-corepack.sh

#!/bin/sh
set -euf
install_dir=$1

if [ -e "$install_dir" ]; then
	printf 'Install path `%s` already exists; use different path.\n' \
		"$install_dir" \
		1>&2
	exit 1
fi

# Note: check latest version by:
# node -pe 'JSON.parse(process.argv.pop()).dist' \
#   "$(curl --get https://registry.npmjs.org/corepack/latest/)"


curl https://registry.npmjs.org/corepack/-/corepack-0.9.0.tgz | \
	tar -zxvf - \
	--strip-components=1 \
	package/LICENSE.md \
	package/dist/corepack.js \
	package/dist/vcc.js \
	package/dist/pnpx.js \
	"--one-top-level=$install_dir"

cd "$install_dir"

sed -i \
	"s/'pnpx'/require('path').basename(process.argv[1]).split('.')[0]/" \
	dist/pnpx.js

mv dist/pnpx.js dist/corepack-run

mkdir bin

for name in pnpm pnpx yarn yarnpkg npm npx; do
	ln -rs dist/corepack-run "bin/$name"
done

printf '\nDone! Now put `%s` into your favourite $PATH.\n\n' \
	"$install_dir/bin/*"\
	1>&2