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|
{- git-annex metadata, standard fields
-
- Copyright 2014 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Annex.MetaData.StandardFields (
tagMetaField,
yearMetaField,
monthMetaField,
lastChangedField,
mkLastChangedField,
isLastChangedField
) where
import Types.MetaData
import Data.List
tagMetaField :: MetaField
tagMetaField = mkMetaFieldUnchecked "tag"
yearMetaField :: MetaField
yearMetaField = mkMetaFieldUnchecked "year"
monthMetaField :: MetaField
monthMetaField = mkMetaFieldUnchecked "month"
lastChangedField :: MetaField
lastChangedField = mkMetaFieldUnchecked lastchanged
mkLastChangedField :: MetaField -> MetaField
mkLastChangedField f = mkMetaFieldUnchecked (fromMetaField f ++ lastchangedSuffix)
isLastChangedField :: MetaField -> Bool
isLastChangedField f
| f == lastChangedField = True
| otherwise = lastchanged `isSuffixOf` s && s /= lastchangedSuffix
where
s = fromMetaField f
lastchanged :: String
lastchanged = "lastchanged"
lastchangedSuffix :: String
lastchangedSuffix = "-lastchanged"
|
