git-annex/Command/Whereis.hs
Joey Hess e880d0d22c replace (Key, Backend) with Key
Only fsck and reinject and the test suite used the Backend, and they can
look it up as needed from the Key. This simplifies the code and also speeds
it up.

There is a small behavior change here. Before, all commands would warn when
acting on an annexed file with an unknown backend. Now, only fsck and
reinject show that warning.
2014-04-17 18:03:39 -04:00

65 lines
1.9 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Whereis where
import qualified Data.Map as M
import Common.Annex
import Command
import Remote
import Logs.Trust
def :: [Command]
def = [noCommit $ withOptions (jsonOption : keyOptions) $
command "whereis" paramPaths seek SectionQuery
"lists repositories that have file content"]
seek :: CommandSeek
seek ps = do
m <- remoteMap id
withKeyOptions
(startKeys m)
(withFilesInGit $ whenAnnexed $ start m)
ps
start :: M.Map UUID Remote -> FilePath -> Key -> CommandStart
start remotemap file key = start' remotemap key (Just file)
startKeys :: M.Map UUID Remote -> Key -> CommandStart
startKeys remotemap key = start' remotemap key Nothing
start' :: M.Map UUID Remote -> Key -> AssociatedFile -> CommandStart
start' remotemap key afile = do
showStart' "whereis" key afile
next $ perform remotemap key
perform :: M.Map UUID Remote -> Key -> CommandPerform
perform remotemap key = do
locations <- keyLocations key
(untrustedlocations, safelocations) <- trustPartition UnTrusted locations
let num = length safelocations
showNote $ show num ++ " " ++ copiesplural num
pp <- prettyPrintUUIDs "whereis" safelocations
unless (null safelocations) $ showLongNote pp
pp' <- prettyPrintUUIDs "untrusted" untrustedlocations
unless (null untrustedlocations) $ showLongNote $ untrustedheader ++ pp'
forM_ (mapMaybe (`M.lookup` remotemap) locations) $
performRemote key
if null safelocations then stop else next $ return True
where
copiesplural 1 = "copy"
copiesplural _ = "copies"
untrustedheader = "The following untrusted locations may also have copies:\n"
performRemote :: Key -> Remote -> Annex ()
performRemote key remote = maybe noop go $ whereisKey remote
where
go a = do
ls <- a key
unless (null ls) $ showLongNote $ unlines $
map (\l -> name remote ++ ": " ++ l) ls