Standalone script to import nodejs release team keyring for installing older versions of nodejs when using asdf from homebrew install

import-release-team-keyring

#!/usr/bin/env bash
# INSTRUCTIONS
# Download file & `chmod +x` it
# Alternatively, you should be able to `curl` & pipe it to bash.
# Why? Because you can't run the recommended script unless you have a git-only `asdf` install.

set -o nounset -o pipefail -o errexit

plugin_name() {
  basename "$(dirname "$(dirname "$0")")"
}

ASDF_NODEJS_KEYRING=asdf-nodejs.gpg

## Keys from https://github.com/nodejs/node/#release-keys
KEYS="94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
      FD3A5288F042B6850C66B31F09FE44734EB7990E \
      71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
      DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
      C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
      B9AE9905FFD7803F25714661B63B535A4C206CA9 \
      8FCCA13FEF1D0C2E91008E09770F7A9A5AE15600 \
      77984A986EBC2AA786BC0F66B01FBB92821C587A \
      A48C2BEE680E841632CD4E44F07496B3EB3C1762 \
      4ED778F539E3634C779C87C6D7062848A1AB005C \
      B9E2F5981AA6E0CD28160D9FF13993A75599653C"

SERVERS="ha.pool.sks-keyservers.net
         p80.pool.sks-keyservers.net:80 \
         ipv4.pool.sks-keyservers.net \
         keyserver.ubuntu.com
         keyserver.ubuntu.com:80 \
         pgp.mit.edu
         pgp.mit.edu:80"

OPTIONS=""
if [ -n "${http_proxy:-}" ];
  then OPTIONS="--keyserver-options http-proxy=$http_proxy";
fi

gnugp_verify_command_name="$(command -v gpg gpg2 | head -n 1 || :)"

if [ -z "${gnugp_verify_command_name}" ]; then
  echo 'gpg or gpg2 command not found!' >&2
  echo "You must install GnuPG to import release team keys: https://www.gnupg.org/" >&2
  exit 1
fi

for key in $KEYS; do
  for server in $SERVERS; do
    $gnugp_verify_command_name --no-default-keyring --keyring ${ASDF_NODEJS_KEYRING} --no-tty --keyserver "hkp://$server" $OPTIONS --display-charset utf-8 --recv-keys "$key" && break
  done
done