81d402216d
This will speed up the common case where a Key is deserialized from disk, but is then serialized to build eg, the path to the annex object. Previously attempted in4536c93bb2and reverted in96aba8eff7. The problems mentioned in the latter commit are addressed now: Read/Show of KeyData is backwards-compatible with Read/Show of Key from before this change, so Types.Distribution will keep working. The Eq instance is fixed. Also, Key has smart constructors, avoiding needing to remember to update the cached serialization. Used git-annex benchmark: find is 7% faster whereis is 3% faster get when all files are already present is 5% faster Generally, the benchmarks are running 0.1 seconds faster per 2000 files, on a ram disk in my laptop.
48 lines
1.2 KiB
Haskell
48 lines
1.2 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010, 2015 Joey Hess <joey@kitenet.net>
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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 Command.SetKey where
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import Command
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import Logs.Location
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import Annex.Content
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cmd :: Command
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cmd = command "setkey" SectionPlumbing "sets annexed content for a key"
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(paramPair paramKey paramPath)
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(withParams seek)
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seek :: CmdParams -> CommandSeek
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seek = withWords (commandAction . start)
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start :: [String] -> CommandStart
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start (keyname:file:[]) = starting "setkey" (ActionItemOther (Just file)) $
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perform file (keyOpt keyname)
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start _ = giveup "specify a key and a content file"
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keyOpt :: String -> Key
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keyOpt = fromMaybe (giveup "bad key") . deserializeKey
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perform :: FilePath -> Key -> CommandPerform
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perform file key = do
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-- the file might be on a different filesystem, so moveFile is used
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-- rather than simply calling moveAnnex; disk space is also
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-- checked this way.
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ok <- getViaTmp RetrievalAllKeysSecure DefaultVerify key $ \dest -> unVerified $
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if dest /= file
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then liftIO $ catchBoolIO $ do
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moveFile file dest
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return True
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else return True
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if ok
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then next $ cleanup key
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else error "mv failed!"
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cleanup :: Key -> CommandCleanup
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cleanup key = do
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logStatus key InfoPresent
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return True
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