git-annex/Command/Status.hs

102 lines
2.7 KiB
Haskell

{- git-annex command
-
- Copyright 2013-2015 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Status where
import Command
import Annex.CatFile
import Annex.Content.Direct
import Config
import Git.Status
import qualified Git.Ref
import Git.FilePath
cmd :: Command
cmd = notBareRepo $ noCommit $ noMessages $
withGlobalOptions [jsonOption] $
command "status" SectionCommon
"show the working tree status"
paramPaths (seek <$$> optParser)
data StatusOptions = StatusOptions
{ statusFiles :: CmdParams
, ignoreSubmodules :: Maybe String
}
optParser :: CmdParamsDesc -> Parser StatusOptions
optParser desc = StatusOptions
<$> cmdParams desc
<*> optional (strOption
( long "ignore-submodules"
<> help "passed on to git status"
<> metavar "WHEN"
))
seek :: StatusOptions -> CommandSeek
seek o = withWords (start o) (statusFiles o)
start :: StatusOptions -> [FilePath] -> CommandStart
start o locs = do
(l, cleanup) <- inRepo $ getStatus ps locs
getstatus <- ifM isDirect
( return statusDirect
, return $ \s -> pure (Just s)
)
forM_ l $ \s -> maybe noop displayStatus =<< getstatus s
ifM (liftIO cleanup)
( stop
, giveup "git status failed"
)
where
ps = case ignoreSubmodules o of
Nothing -> []
Just s -> [Param $ "--ignore-submodules="++s]
displayStatus :: Status -> Annex ()
-- renames not shown in this simplified status
displayStatus (Renamed _ _) = noop
displayStatus s = do
let c = statusChar s
absf <- fromRepo $ fromTopFilePath (statusFile s)
f <- liftIO $ relPathCwdToFile absf
unlessM (showFullJSON $ JSONChunk [("status", [c]), ("file", f)]) $
liftIO $ putStrLn $ [c] ++ " " ++ f
-- Git thinks that present direct mode files are typechanged.
-- (On crippled filesystems, git instead thinks they're modified.)
-- Check their content to see if they are modified or not.
statusDirect :: Status -> Annex (Maybe Status)
statusDirect (TypeChanged t) = statusDirect' t
statusDirect s@(Modified t) = ifM crippledFileSystem
( statusDirect' t
, pure (Just s)
)
statusDirect s = pure (Just s)
statusDirect' :: TopFilePath -> Annex (Maybe Status)
statusDirect' t = do
absf <- fromRepo $ fromTopFilePath t
f <- liftIO $ relPathCwdToFile absf
v <- liftIO (catchMaybeIO $ getFileStatus f)
case v of
Nothing -> return $ Just $ Deleted t
Just s
| not (isSymbolicLink s) ->
checkkey f s =<< catKeyFile f
| otherwise -> Just <$> checkNew f t
where
checkkey f s (Just k) = ifM (sameFileStatus k f s)
( return Nothing
, return $ Just $ Modified t
)
checkkey f _ Nothing = Just <$> checkNew f t
checkNew :: FilePath -> TopFilePath -> Annex Status
checkNew f t = ifM (isJust <$> catObjectDetails (Git.Ref.fileRef f))
( return (Modified t)
, return (Untracked t)
)