text search to distinguish rails projects from other types of ruby web applications - merb/sinatra/ramaze

Question

If I want to perform a search on a directory that contains thousands of different ruby web applications and I want to find only those directories that contain rails projects, what text would I need to look for within each directory to uniquely distinguish the rails projects from the other project types?

At the moment, I have decided to search based on:

config.gem

which I believe is a syntax that is used only by Rails, not by Merb, Sinatra or Ramaze. Is this correct?

Answer 1

While config.gem will probably work you might want to search for the file script/server which every Rails app will have. Who knows, maybe some strange person has decided to change the block parameter config to be named something else? It is probably far less likely they've changed or moved script/server though.