Add debug function

lsyncd.lua

@@ -36,6 +36,24 @@ terminate = lsyncd.terminate
 now       = lsyncd.now
 readdir   = lsyncd.readdir
 
+--
+-- Debug helper. Prints contents of `tbl`, with indentation.
+-- `indent` sets the initial level of indentation.
+--
+function dump(tbl, indent)
+	if not indent then indent = 0 end
+	for k, v in pairs(tbl) do
+	  formatting = string.rep("  ", indent) .. k .. ": "
+	  if type(v) == "table" then
+		print(formatting)
+		dump(v, indent+1)
+	  elseif type(v) == 'boolean' then
+		print(formatting .. tostring(v))
+	  else
+		print(formatting .. v)
+	  end
+	end
+end
 
 local inherit = nil
 local inheritKV = nil