Compare registry entry for module vs website

isvalid.sh

#!/bin/bash

# Example usage
# cat modules | while LINE='$\n' read -r LINE; do ./valid.sh $LINE; done;

MODULE=$1
if [ -z "$MODULE" ]; then
  MODULE=$(tee);
fi
SITE=$(curl -s https://www.npmjs.com/package/${MODULE} | pup 'body > div.container.content > div.sidebar > ul:nth-child(3) > li:nth-child(2) > strong text{}')
REGISTRY=$(npm info ${MODULE} -j | json version)

if [ "$SITE" != "$REGISTRY" ]; then
  echo "version mismatch for module: ${MODULE}";
  exit 1;
fi

Requires npm install -g json and brew install https://raw.githubusercontent.com/EricChiang/pup/master/pup.rb