git-annex/Command/ContentLocation.hs
Joey Hess c19211774f
use filepath-bytestring for annex object manipulations
git-annex find is now RawFilePath end to end, no string conversions.
So is git-annex get when it does not need to get anything.
So this is a major milestone on optimisation.

Benchmarks indicate around 30% speedup in both commands.

Probably many other performance improvements. All or nearly all places
where a file is statted use RawFilePath now.
2019-12-11 15:25:07 -04:00

32 lines
778 B
Haskell

{- git-annex command
-
- Copyright 2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Command.ContentLocation where
import Command
import Annex.Content
import qualified Utility.RawFilePath as R
import qualified Data.ByteString.Char8 as B8
cmd :: Command
cmd = noCommit $ noMessages $
command "contentlocation" SectionPlumbing
"looks up content for a key"
(paramRepeating paramKey)
(batchable run (pure ()))
run :: () -> String -> Annex Bool
run _ p = do
let k = fromMaybe (giveup "bad key") $ deserializeKey p
maybe (return False) (\f -> liftIO (B8.putStrLn f) >> return True)
=<< inAnnex' (pure True) Nothing check k
where
check f = ifM (liftIO (R.doesPathExist f))
( return (Just f)
, return Nothing
)