Disallow multiple feeds sharing the same URL

[hypevhs]

transmission-rss -v == 0.2.6

In my config, I thought I could do

- url: http://bigfeed
  regexp: something AAAA
  download_path: /somepath/AAAA
- url: http://bigfeed
  regexp: something BBBB
  download_path: /somepath/BBBB

but a lot of items would be left undownloaded and ignored. I am guessing that this is because one feed runs and adds everything to the seenfile, so the other sees nothing new. The same feed URL is also downloaded twice per update interval (despite them being)/(since they are) identical.

I now know that the correct way is

- url: http://bigfeed
  regexp:
    - matcher: something AAAA
      download_path: /somepath/AAAA
    - matcher: something BBBB
      download_path: /somepath/BBBB

But a warning would have helped me track down the issue. Maybe the config file parser could transform the first example into the second example.

[nning]

I implemented a warning if duplicate urls are configured. Thank you very much for your suggestion!