git-annex/CmdLine/GitAnnexShell/Fields.hs
2015-01-21 12:50:09 -04:00

36 lines
833 B
Haskell

{- git-annex-shell fields
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module CmdLine.GitAnnexShell.Fields where
import Common.Annex
import qualified Annex
import Git.FilePath
import Data.Char
{- A field, stored in Annex state, with a value sanity checker. -}
data Field = Field
{ fieldName :: String
, fieldCheck :: String -> Bool
}
getField :: Field -> Annex (Maybe String)
getField = Annex.getField . fieldName
remoteUUID :: Field
remoteUUID = Field "remoteuuid" $
-- does it look like a UUID?
all (\c -> isAlphaNum c || c == '-')
associatedFile :: Field
associatedFile = Field "associatedfile" $ \f ->
-- is the file a safe relative filename?
not (absoluteGitPath f) && not ("../" `isPrefixOf` f)
direct :: Field
direct = Field "direct" $ \f -> f == "1"