102 lines
2.8 KiB
Haskell
102 lines
2.8 KiB
Haskell
{- git-annex command
|
|
-
|
|
- Copyright 2015 Joey Hess <id@joeyh.name>
|
|
-
|
|
- Licensed under the GNU GPL version 3 or higher.
|
|
-}
|
|
|
|
module Command.Smudge where
|
|
|
|
import Command
|
|
import qualified Annex
|
|
import Annex.Content
|
|
import Annex.Link
|
|
import Annex.FileMatcher
|
|
import Annex.Ingest
|
|
import Logs.Location
|
|
import qualified Database.Keys
|
|
import Git.FilePath
|
|
|
|
import qualified Data.ByteString.Lazy as B
|
|
|
|
cmd :: Command
|
|
cmd = noCommit $ noMessages $
|
|
command "smudge" SectionPlumbing
|
|
"git smudge filter"
|
|
paramFile (seek <$$> optParser)
|
|
|
|
data SmudgeOptions = SmudgeOptions
|
|
{ smudgeFile :: FilePath
|
|
, cleanOption :: Bool
|
|
}
|
|
|
|
optParser :: CmdParamsDesc -> Parser SmudgeOptions
|
|
optParser desc = SmudgeOptions
|
|
<$> argument str ( metavar desc )
|
|
<*> switch ( long "clean" <> help "clean filter" )
|
|
|
|
seek :: SmudgeOptions -> CommandSeek
|
|
seek o = commandAction $
|
|
(if cleanOption o then clean else smudge) (smudgeFile o)
|
|
|
|
-- Smudge filter is fed git file content, and if it's a pointer to an
|
|
-- available annex object, should output its content.
|
|
smudge :: FilePath -> CommandStart
|
|
smudge file = do
|
|
b <- liftIO $ B.hGetContents stdin
|
|
case parseLinkOrPointer b of
|
|
Nothing -> liftIO $ B.putStr b
|
|
Just k -> do
|
|
-- A previous unlocked checkout of the file may have
|
|
-- led to the annex object getting modified;
|
|
-- don't provide such modified content as it
|
|
-- will be confusing. inAnnex will detect such
|
|
-- modifications.
|
|
ifM (inAnnex k)
|
|
( do
|
|
content <- calcRepo (gitAnnexLocation k)
|
|
whenM (annexThin <$> Annex.getGitConfig) $
|
|
warning $ "Not able to honor annex.thin when git is checking out " ++ file ++ " (run git annex fix to re-thin files)"
|
|
liftIO $ B.putStr . fromMaybe b
|
|
=<< catchMaybeIO (B.readFile content)
|
|
, liftIO $ B.putStr b
|
|
)
|
|
Database.Keys.addAssociatedFile k =<< inRepo (toTopFilePath file)
|
|
stop
|
|
|
|
-- Clean filter is fed file content on stdin, decides if a file
|
|
-- should be stored in the annex, and outputs a pointer to its
|
|
-- injested content.
|
|
clean :: FilePath -> CommandStart
|
|
clean file = do
|
|
b <- liftIO $ B.hGetContents stdin
|
|
if isJust (parseLinkOrPointer b)
|
|
then liftIO $ B.hPut stdout b
|
|
else ifM (shouldAnnex file)
|
|
( do
|
|
-- Even though we ingest the actual file,
|
|
-- and not stdin, we need to consume all
|
|
-- stdin, or git will get annoyed.
|
|
B.length b `seq` return ()
|
|
liftIO . emitPointer
|
|
=<< go =<< ingest =<< lockDown cfg file
|
|
, liftIO $ B.hPut stdout b
|
|
)
|
|
stop
|
|
where
|
|
go (Just k, _) = do
|
|
logStatus k InfoPresent
|
|
return k
|
|
go _ = error "could not add file to the annex"
|
|
cfg = LockDownConfig
|
|
{ lockingFile = False
|
|
, hardlinkFileTmp = False
|
|
}
|
|
|
|
shouldAnnex :: FilePath -> Annex Bool
|
|
shouldAnnex file = do
|
|
matcher <- largeFilesMatcher
|
|
checkFileMatcher matcher file
|
|
|
|
emitPointer :: Key -> IO ()
|
|
emitPointer = putStr . formatPointer
|