git-annex/Command/Find.hs
Joey Hess 2b5b4dcd78 Add plumbing-level lookupkey examinekey command.
find --format: Added hashdirlower, hashdirmixed, keyname, and mtime format
variables.
2013-12-15 14:52:09 -04:00

71 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
import qualified Option
def :: [Command]
def = [noCommit $ noMessages $ withOptions [formatOption, print0Option] $
command "find" paramPaths seek SectionQuery "lists available files"]
formatOption :: Option
formatOption = Option.field [] "format" paramFormat "control format of output"
withFormat :: (Maybe Utility.Format.Format -> CommandSeek) -> CommandSeek
withFormat = withField formatOption $ return . fmap Utility.Format.gen
print0Option :: Option
print0Option = Option.Option [] ["print0"] (Option.NoArg set)
"terminate output with null"
where
set = Annex.setField (Option.name formatOption) "${file}\0"
seek :: [CommandSeek]
seek = [withFormat $ \f -> withFilesInGit $ whenAnnexed $ start f]
start :: Maybe Utility.Format.Format -> FilePath -> (Key, Backend) -> 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"