git-annex/Command/List.hs
Joey Hess 53526136e8
move commandAction out of CmdLine.Seek
This is groundwork for nested seek loops, eg seeking over all files and
then performing commandActions on a list of remotes, which can be done
concurrently.

This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
2018-10-01 14:12:06 -04:00

97 lines
2.6 KiB
Haskell

{- git-annex command
-
- Copyright 2013 Joey Hess <id@joeyh.name>
- Copyright 2013 Antoine Beaupré
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.List where
import qualified Data.Set as S
import qualified Data.Map as M
import Data.Function
import Data.Ord
import Command
import Remote
import Logs.Trust
import Logs.UUID
import Annex.UUID
import Git.Types (RemoteName)
import Utility.Tuple
cmd :: Command
cmd = noCommit $ withGlobalOptions [annexedMatchingOptions] $
command "list" SectionQuery
"show which remotes contain files"
paramPaths (seek <$$> optParser)
data ListOptions = ListOptions
{ listThese :: CmdParams
, allRepos :: Bool
}
optParser :: CmdParamsDesc -> Parser ListOptions
optParser desc = ListOptions
<$> cmdParams desc
<*> switch
( long "allrepos"
<> help "show all repositories, not only remotes"
)
seek :: ListOptions -> CommandSeek
seek o = do
list <- getList o
printHeader list
withFilesInGit
(commandAction . (whenAnnexed $ start list))
=<< workTreeItems (listThese o)
getList :: ListOptions -> Annex [(UUID, RemoteName, TrustLevel)]
getList o
| allRepos o = nubBy ((==) `on` fst3) <$> ((++) <$> getRemotes <*> getAllUUIDs)
| otherwise = getRemotes
where
getRemotes = do
rs <- remoteList
ts <- mapM (lookupTrust . uuid) rs
hereu <- getUUID
heretrust <- lookupTrust hereu
let l = (hereu, "here", heretrust) : zip3 (map uuid rs) (map name rs) ts
return $ filter (\(_, _, t) -> t /= DeadTrusted) l
getAllUUIDs = do
rs <- M.toList <$> uuidMap
rs3 <- forM rs $ \(u, n) -> (,,)
<$> pure u
<*> pure n
<*> lookupTrust u
return $ sortBy (comparing snd3) $
filter (\t -> thd3 t /= DeadTrusted) rs3
printHeader :: [(UUID, RemoteName, TrustLevel)] -> Annex ()
printHeader l = liftIO $ putStrLn $ lheader $ map (\(_, n, t) -> (n, t)) l
start :: [(UUID, RemoteName, TrustLevel)] -> FilePath -> Key -> CommandStart
start l file key = do
ls <- S.fromList <$> keyLocations key
liftIO $ putStrLn $ format (map (\(u, _, t) -> (t, S.member u ls)) l) file
stop
type Present = Bool
lheader :: [(RemoteName, TrustLevel)] -> String
lheader remotes = unlines (zipWith formatheader [0..] remotes) ++ pipes (length remotes)
where
formatheader n (remotename, trustlevel) = pipes n ++ remotename ++ trust trustlevel
pipes = flip replicate '|'
trust UnTrusted = " (untrusted)"
trust _ = ""
format :: [(TrustLevel, Present)] -> FilePath -> String
format remotes file = thereMap ++ " " ++ file
where
thereMap = concatMap there remotes
there (UnTrusted, True) = "x"
there (_, True) = "X"
there (_, False) = "_"