Copyright	(c) 2016 Herbert Valerio Riedel
License	BSD3
Safe Haskell	Safe-Inferred
Language	Haskell2010

Distribution.Client.IndexUtils.Timestamp

Description

Timestamp type used in package indexes

Synopsis

data Timestamp
nullTimestamp :: Timestamp
epochTimeToTimestamp :: EpochTime -> Maybe Timestamp
timestampToUTCTime :: Timestamp -> Maybe UTCTime
utcTimeToTimestamp :: UTCTime -> Maybe Timestamp
maximumTimestamp :: [Timestamp] -> Timestamp

Documentation

data Timestamp Source #

UNIX timestamp (expressed in seconds since unix epoch, i.e. 1970).

Instances

Instances details

Parsec Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods parsec :: CabalParsing m => m Timestamp #
Pretty Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods pretty :: Timestamp -> Doc # prettyVersioned :: CabalSpecVersion -> Timestamp -> Doc #
Structured Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods structure :: Proxy Timestamp -> Structure structureHash' :: Tagged Timestamp MD5
Enum Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods succ :: Timestamp -> Timestamp pred :: Timestamp -> Timestamp toEnum :: Int -> Timestamp fromEnum :: Timestamp -> Int enumFrom :: Timestamp -> [Timestamp] enumFromThen :: Timestamp -> Timestamp -> [Timestamp] enumFromTo :: Timestamp -> Timestamp -> [Timestamp] enumFromThenTo :: Timestamp -> Timestamp -> Timestamp -> [Timestamp]
Generic Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Associated Types type Rep Timestamp :: Type -> Type Methods from :: Timestamp -> Rep Timestamp x to :: Rep Timestamp x -> Timestamp
Show Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods showsPrec :: Int -> Timestamp -> ShowS show :: Timestamp -> String showList :: [Timestamp] -> ShowS
Binary Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods put :: Timestamp -> Put get :: Get Timestamp putList :: [Timestamp] -> Put
NFData Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods rnf :: Timestamp -> ()
Eq Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods (==) :: Timestamp -> Timestamp -> Bool (/=) :: Timestamp -> Timestamp -> Bool
Ord Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp Methods compare :: Timestamp -> Timestamp -> Ordering (<) :: Timestamp -> Timestamp -> Bool (<=) :: Timestamp -> Timestamp -> Bool (>) :: Timestamp -> Timestamp -> Bool (>=) :: Timestamp -> Timestamp -> Bool max :: Timestamp -> Timestamp -> Timestamp min :: Timestamp -> Timestamp -> Timestamp
type Rep Timestamp Source #
Instance details Defined in Distribution.Client.IndexUtils.Timestamp type Rep Timestamp = D1 ('MetaData "Timestamp" "Distribution.Client.IndexUtils.Timestamp" "cabal-install-3.10.2.1-EY5xHO2LnGwBaag5vRk9zW" 'True) (C1 ('MetaCons "TS" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Int64)))

nullTimestamp :: Timestamp Source #

Special timestamp value to be used when timestamp is missingunknowninvalid

epochTimeToTimestamp :: EpochTime -> Maybe Timestamp Source #

timestampToUTCTime :: Timestamp -> Maybe UTCTime Source #

utcTimeToTimestamp :: UTCTime -> Maybe Timestamp Source #

maximumTimestamp :: [Timestamp] -> Timestamp Source #

Compute the maximum Timestamp value

Returns nullTimestamp for the empty list. Also note that nullTimestamp compares as smaller to all non-nullTimestamp values.