Use curl instead of wget; support subscript account rss feed

railscasts_downloader.rb

@@ -1,25 +1,32 @@
 #!/usr/bin/ruby
 require 'rss'
 
-p 'Downloading rss index'
+# PUT in your subscription account's rss feed. You can find it at 
+# Magaging Subscription/RSS Feeds after logging Railscasts.com
+SUBSCRIBED_FEED = ENV['RAILSCASTS_SUB_RSS_FEED'] || nil
 
-rss_string = open('http://feeds.feedburner.com/railscasts').read
+puts 'Downloading rss index'
+rss_feed = SUBSCRIBED_FEED || 'http://feeds.feedburner.com/railscasts'
+rss_string = open(rss_feed).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('*.mp4')
 missing_filenames = videos_filenames - existing_filenames
-p "Downloading #{missing_filenames.size} missing videos"
+puts "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
-  p filename
-  p %x(wget -c #{video_url} -O #{filename}.tmp )
-  p %x(mv #{filename}.tmp #{filename} )
+  puts filename
+  download_success = system("curl -C - #{video_url} -o #{filename}.tmp")
+  rename_success = system("mv #{filename}.tmp #{filename}")
+  if download_success && rename_success
+    puts "Download #{filename} success!"
+    puts
+  else
+    puts "Something went wrong..."
+  end
 end
-p 'Finished synchronization'
+puts 'Finished synchronization'