environment/lib/downloader.rb

require 'uri'
require 'addressable/uri'
require 'user'
require 'fileutils'
require 'open-uri'

module Downloader
    # use_cache => save in the home and return path to it
    # forced => download even if the file exists in the cache, saves to chace if use_cache == true
    def self.get(url, use_cache = true, forced = false)
        uri = Addressable::URI.parse(url)
        path = File.join(User.cache_path, "downloads", uri.domain, uri.path)
        
        #uri = URI.parse(url)
        #file_name = File.basename(uri.path)
        
        
        # Ensure the directory exists
        dir = File.dirname(path)
        FileUtils.mkdir_p(dir) unless Dir.exist?(dir)

        unless File.exist?(path)
            puts "File does not exist, downloading..."
            URI.open(uri) do |input|
                File.open(path, 'wb') do |output|
                    IO.copy_stream(input, output)
                end
            end
        end

        yield path
    end
end