git-annex/Command/Find.hs

74 lines
2.1 KiB
Haskell

{- git-annex command
-
- Copyright 2010-2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Find where
import qualified Data.Map as M
import Common.Annex
import Command
import Annex.Content
import Limit
import qualified Annex
import qualified Utility.Format
import Utility.DataUnits
import Types.Key
def :: [Command]
def = [mkCommand $ command "find" paramPaths seek SectionQuery "lists available files"]
mkCommand :: Command -> Command
mkCommand = noCommit . noMessages . withOptions [formatOption, print0Option, jsonOption]
formatOption :: Option
formatOption = fieldOption [] "format" paramFormat "control format of output"
getFormat :: Annex (Maybe Utility.Format.Format)
getFormat = getOptionField formatOption $ return . fmap Utility.Format.gen
print0Option :: Option
print0Option = Option [] ["print0"] (NoArg set)
"terminate output with null"
where
set = Annex.setField (optionName formatOption) "${file}\0"
seek :: CommandSeek
seek ps = do
format <- getFormat
withFilesInGit (whenAnnexed $ start format) ps
start :: Maybe Utility.Format.Format -> FilePath -> Key -> CommandStart
start format file key = do
-- only files inAnnex are shown, unless the user has requested
-- others via a limit
whenM (limited <||> inAnnex key) $
showFormatted format file $ ("file", file) : keyVars key
stop
showFormatted :: Maybe Utility.Format.Format -> String -> [(String, String)] -> Annex ()
showFormatted format unformatted vars =
unlessM (showFullJSON 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", keyBackendName key)
, ("bytesize", size show)
, ("humansize", size $ roughSize storageUnits True)
, ("keyname", keyName key)
, ("hashdirlower", hashDirLower key)
, ("hashdirmixed", hashDirMixed key)
, ("mtime", whenavail show $ keyMtime key)
]
where
size c = whenavail c $ keySize key
whenavail = maybe "unknown"