# File lib/core/facets/file/common_path.rb, line 6 def self.common_path(*paths) return paths.first if paths.length <= 1 arr = paths.sort f = arr.first.split('/') l = arr.last.split('/') i = 0 i += 1 while f[i] == l[i] && i <= f.length f.slice(0, i).join('/') end