Detect licenses

[ksandom]

Task

• Find a way to detect licenses at the the beginning of files.
• Return a description like "Rejected: license."

Background

Sometimes, people put the license of the program at the top of the script instead of the description. This is a case that we should be able to detect. Right now it's done by looking for a couple of key words. But this won't scale.

My current thinking is to

• Build up an array of strings, which are the first line of licenses we've come across.
  • The first pass at solving this could be just two or more licenes (ie just enough to prove that the solution isn't a single hard coded string.)
  • This list will expand pretty quickly.
  • The list should be ordered in order of how frequently the licenses occur. Ie most common at the top. - Eg I'm guessing this will be a GPL of some form.
• Test that the returned comment does not contain each license.
• If it does, return a string like "Rejected: License." Ie it's not a comment.