mirror of https://github.com/voidlizard/hbs2
41 lines
1.3 KiB
Haskell
41 lines
1.3 KiB
Haskell
module HBS2.Storage.NCQ3.Internal.Files where
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import HBS2.Storage.NCQ3.Internal.Prelude
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import HBS2.Storage.NCQ3.Internal.Types
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import System.Posix.Files qualified as PFS
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import Data.List qualified as List
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ncqGetFileName :: NCQStorage3 -> FilePath -> FilePath
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ncqGetFileName ncq fp = ncqGetWorkDir ncq </> takeFileName fp
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ncqGetWorkDir :: NCQStorage3 -> FilePath
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ncqGetWorkDir NCQStorage3{..} = ncqRoot </> show ncqGen
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ncqGetLockFileName :: NCQStorage3 -> FilePath
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ncqGetLockFileName ncq = ncqGetFileName ncq ".lock"
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ncqGetNewFileKey :: forall f m . (ToFileName f, MonadIO m)
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=> NCQStorage3
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-> ( FileKey -> f )
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-> m FileKey
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ncqGetNewFileKey me@NCQStorage3{..} fnameOf = fix \next -> do
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n <- atomically $ stateTVar ncqStateFileSeq (\x -> (x, succ x))
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here <- doesFileExist (ncqGetFileName me (toFileName $ fnameOf n))
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if here then next else pure n
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ncqListFilesBy :: forall m . MonadUnliftIO m => NCQStorage3 -> (FilePath -> Bool) -> m [(POSIXTime, FileKey)]
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ncqListFilesBy me@NCQStorage3{..} filt = do
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w <- dirFiles (ncqGetWorkDir me)
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<&> filter (filt . takeFileName)
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r <- for w $ \fn -> do
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ts <- liftIO (PFS.getFileStatus fn) <&> PFS.modificationTimeHiRes
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pure (ts, fromString (takeBaseName fn))
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pure $ List.sortOn ( Down . fst ) r
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