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|
{- git-annex command
-
- Copyright 2010-2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Find where
import Data.Default
import qualified Data.Map as M
import Command
import Annex.Content
import Limit
import Types.Key
import qualified Utility.Format
import Utility.DataUnits
cmd :: Command
cmd = withGlobalOptions [annexedMatchingOptions] $ mkCommand $
command "find" SectionQuery "lists available files"
paramPaths (seek <$$> optParser)
mkCommand :: Command -> Command
mkCommand = noCommit . noMessages . withGlobalOptions [jsonOptions]
data FindOptions = FindOptions
{ findThese :: CmdParams
, formatOption :: Maybe Utility.Format.Format
, batchOption :: BatchMode
}
optParser :: CmdParamsDesc -> Parser FindOptions
optParser desc = FindOptions
<$> cmdParams desc
<*> optional parseFormatOption
<*> parseBatchOption
parseFormatOption :: Parser Utility.Format.Format
parseFormatOption =
option (Utility.Format.gen <$> str)
( long "format" <> metavar paramFormat
<> help "control format of output"
)
<|> flag' (Utility.Format.gen "${file}\0")
( long "print0"
<> help "output filenames terminated with nulls"
)
seek :: FindOptions -> CommandSeek
seek o = case batchOption o of
NoBatch -> withFilesInGit go =<< workTreeItems (findThese o)
Batch -> batchFiles go
where
go = whenAnnexed $ start o
-- only files inAnnex are shown, unless the user has requested
-- others via a limit
start :: FindOptions -> FilePath -> Key -> CommandStart
start o file key = ifM (limited <||> inAnnex key)
( do
showFormatted (formatOption o) file $ ("file", file) : keyVars key
next $ next $ return True
, stop
)
showFormatted :: Maybe Utility.Format.Format -> String -> [(String, String)] -> Annex ()
showFormatted format unformatted vars =
unlessM (showFullJSON $ JSONChunk vars) $
case format of
Nothing -> liftIO $ putStrLn unformatted
Just formatter -> liftIO $ putStr $
Utility.Format.format formatter $
M.fromList vars
keyVars :: Key -> [(String, String)]
keyVars key =
[ ("key", key2file key)
, ("backend", formatKeyVariety $ keyVariety key)
, ("bytesize", size show)
, ("humansize", size $ roughSize storageUnits True)
, ("keyname", keyName key)
, ("hashdirlower", hashDirLower def key)
, ("hashdirmixed", hashDirMixed def key)
, ("mtime", whenavail show $ keyMtime key)
]
where
size c = whenavail c $ keySize key
whenavail = maybe "unknown"
|
