Detect if sources are almost identical

[ypid]

Example:

deb http://httpredir.debian.org/debian jessie main contrib non-free
deb http://httpredir.debian.org/debian/ jessie main contrib non-free

I guess / at the end or not could be detected.

[drybjed]

I suppose, although I'm not sure if entries ending with / in sources.list make APT behave differently, ie. a simple repository vs a reprepro-like repository layout.

[ypid]

Good point. That would be the question.