git-annex/Logs/TimeStamp.hs
2015-05-10 15:36:58 -04:00

30 lines
809 B
Haskell

{- log timestamp parsing
-
- Copyright 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Logs.TimeStamp where
import Data.Time.Clock.POSIX
import Data.Time
#if ! MIN_VERSION_time(1,5,0)
import System.Locale
#endif
import Common
{- Parses how POSIXTime shows itself: "1431286201.113452s"
- Also handles the format with no fractional seconds. -}
parsePOSIXTime :: String -> Maybe POSIXTime
#if MIN_VERSION_time(1,5,0)
parsePOSIXTime s = utcTimeToPOSIXSeconds <$> parseTimeM True defaultTimeLocale "%s%Qs" s
#else
parsePOSIXTime s = utcTimeToPOSIXSeconds <$> parseTime defaultTimeLocale "%s%Qs" s
#endif
formatPOSIXTime :: String -> POSIXTime -> String
formatPOSIXTime fmt t = formatTime defaultTimeLocale fmt (posixSecondsToUTCTime t)