bdec7fed9c
Adds a dependency on filepath-bytestring, an as yet unreleased fork of filepath that operates on RawFilePath. Git.Repo also changed to use RawFilePath for the path to the repo. This does eliminate some RawFilePath -> FilePath -> RawFilePath conversions. And filepath-bytestring's </> is probably faster. But I don't expect a major performance improvement from this. This is mostly groundwork for making Annex.Location use RawFilePath, which will allow for a conversion-free pipleline.
66 lines
1.9 KiB
Haskell
66 lines
1.9 KiB
Haskell
{- git-annex file matcher types
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-
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- Copyright 2013-2019 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Types.FileMatcher where
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import Types.UUID (UUID)
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import Types.Key (Key, AssociatedFile)
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import Types.Mime
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import Utility.Matcher (Matcher, Token)
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import Utility.FileSize
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import Utility.FileSystemEncoding
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import Control.Monad.IO.Class
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import qualified Data.Map as M
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import qualified Data.Set as S
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-- Information about a file or a key that can be matched on.
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data MatchInfo
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= MatchingFile FileInfo
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| MatchingKey Key AssociatedFile
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| MatchingInfo ProvidedInfo
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data FileInfo = FileInfo
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{ currFile :: RawFilePath
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-- ^ current path to the file, for operations that examine it
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, matchFile :: RawFilePath
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-- ^ filepath to match on; may be relative to top of repo or cwd
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}
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-- This is used when testing a matcher, with values to match against
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-- provided in some way, rather than queried from files on disk.
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data ProvidedInfo = ProvidedInfo
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{ providedFilePath :: OptInfo FilePath
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, providedKey :: OptInfo Key
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, providedFileSize :: OptInfo FileSize
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, providedMimeType :: OptInfo MimeType
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, providedMimeEncoding :: OptInfo MimeEncoding
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}
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type OptInfo a = Either (IO a) a
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-- If the OptInfo is not available, accessing it may result in eg an
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-- exception being thrown.
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getInfo :: MonadIO m => OptInfo a -> m a
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getInfo (Right i) = return i
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getInfo (Left e) = liftIO e
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type FileMatcherMap a = M.Map UUID (FileMatcher a)
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type MkLimit a = String -> Either String (MatchFiles a)
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type AssumeNotPresent = S.Set UUID
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type MatchFiles a = AssumeNotPresent -> MatchInfo -> a Bool
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type FileMatcher a = Matcher (MatchFiles a)
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-- This is a matcher that can have tokens added to it while it's being
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-- built, and once complete is compiled to an unchangable matcher.
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data ExpandableMatcher a
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= BuildingMatcher [Token (MatchInfo -> a Bool)]
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| CompleteMatcher (Matcher (MatchInfo -> a Bool))
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