presents estimated time to run before running

lib/timing.lua

@@ -1,34 +1,36 @@
-local timing = {
-  entries = {}
-}
+local timing = {}
+local entries = {}
 
-local function to_minutes(t)   -- floored to tenths
-  return math.floor( t / 60 * 10 ) / 10
+function timing.seconds_to_minutes(seconds)   -- floored to tenths
+  return math.floor( seconds / 60 * 10 ) / 10
 end
 
-function timing:start()
-  -- if not self then self = {} end
-  self.entries[#self.entries + 1] = { start_time = os.time() }
+function timing.start()
+  entries[#entries + 1] = { start_time = os.time() }
 end
 
-function timing:stop()
-  local entry = self.entries[#self.entries]
+function timing.stop()
+  local entry = entries[#entries]
   entry.stop_time = os.time()
+  entry.delta = entry.stop_time - entry.start_time
 
-  return to_minutes(entry.stop_time - entry.start_time)   -- return delta
+  return timing.seconds_to_minutes(entry.delta)
 end
 
-function timing:print_report()
+function timing.print_report()
   local minimum, maximum, sum = math.huge, -math.huge, 0
-  for _, data in pairs(self.entries) do
-    local delta = data.stop_time - data.start_time
+  for _, data in pairs(entries) do
+    local delta = data.delta
     if delta > maximum then maximum = delta end
     if delta < minimum then minimum = delta end
     sum = sum + delta
   end
-  print("Total: " .. to_minutes(sum) .. " minutes.")
-  print("Averge: " .. to_minutes(sum / #self.entries) .. " minutes. Fastest: "
-    .. to_minutes(minimum) .. " minutes. Slowest: " .. to_minutes(maximum) .. " minutes.")
+
+  print("Total: " .. timing.seconds_to_minutes(sum) .. " minutes.")
+  print("Averge: " .. timing.seconds_to_minutes(sum / #entries)
+    .. " minutes. Fastest: " .. timing.seconds_to_minutes(minimum)
+    .. " minutes. Slowest: " .. timing.seconds_to_minutes(maximum)
+    .. " minutes.")
 end
 
 return timing