add script to clone dfp schematic

dfp_clone.rb

@@ -0,0 +1,15 @@
+#!/usr/bin/env ruby
+# encoding: utf-8
+
+ORIGINAL_PATH = "usb_hub-dfp1.sch"
+ORIGINAL_FILE = IO.read(ORIGINAL_PATH)
+(2..7).to_a.each do |number|
+  number = number.to_s
+  output = ORIGINAL_FILE.dup
+  output.gsub!(/netname=(.*)1/, "netname=" + '\1' + number)
+  output.gsub!(/refdes=(.*)10/, "refdes=" + '\1' + number + "0")
+  output.gsub!(/ - DFP1/, " - DFP" + number)
+  File.open("#{ORIGINAL_PATH.gsub('1', number)}", "w") do |file|
+    file.write output
+  end
+end