batch download for nsscreencasts

download.rb

require 'nokogiri'
require 'open-uri'

# if File.exist?(".env")
#   `source .env`
# else
#   puts "Couldn't find '.env'. Make sure NS_FEED env. variable is set."
# end

FEED = ENV["NS_FEED"]

doc = Nokogiri::XML(open(FEED))

urls = doc.
  search("link[@rel='enclosure']").
  map { |i|
    i.attr('href')
  }

urls.each do |url|
  puts "Downloading #{ url }."
  `wget #{ url } -nv`
end

I've commented out the .env loading because it's sloppy but it worked for me without having to import dotenv or something similar. Just make sure NS_FEED is set, and you'll be good.

Note that this doesn't cover file renaming - the files will have key params attached to them. Renaming is a pretty simple task that I didn't feel necessary to include here. Know your regex!