git-annex/Command/Whereis.hs
2015-01-21 12:50:09 -04:00

74 lines
2.2 KiB
Haskell

{- git-annex command
-
- Copyright 2010-2014 Joey Hess <id@joeyh.name>
-
- 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
import Logs.Web
cmd :: [Command]
cmd = [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 = do
ls <- (++)
<$> askremote
<*> claimedurls
unless (null ls) $ showLongNote $ unlines $
map (\l -> name remote ++ ": " ++ l) ls
where
askremote = maybe (pure []) (flip id key) (whereisKey remote)
claimedurls = do
us <- map fst
. filter (\(_, d) -> d == OtherDownloader)
. map getDownloader
<$> getUrls key
filterM (\u -> (==) <$> pure remote <*> claimingUrl u) us