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@evenchange4
Forked from samqiu/railscasts.rb
Created December 19, 2012 16:41
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#!/usr/bin/ruby
require 'rss'
p 'Downloading rss index'
rss_string = open('http://feeds.feedburner.com/railscasts').read
rss = RSS::Parser.parse(rss_string, false)
videos_urls = rss.items.map { |it| it.enclosure.url }.reverse
videos_filenames = videos_urls.map {|url| url.split('/').last }
existing_filenames = Dir.glob('*.mov')
missing_filenames = videos_filenames - existing_filenames
p "Downloading #{missing_filenames.size} missing videos"
missing_videos_urls = videos_urls.select { |video_url| missing_filenames.any? { |filename| video_url.match filename } }
missing_videos_urls.each do |video_url|
filename = video_url.split('/').last
next if File.exists? filename
p filename
p %x(wget #{video_url} -O #{filename}.tmp )
p %x(mv #{filename}.tmp #{filename} )
end
p 'Finished synchronization'
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