34c8af74ba
I've been disliking how the command seek actions were written for some time, with their inversion of control and ugly workarounds. The last straw to fix it was sync --content, which didn't fit the Annex [CommandStart] interface well at all. I have not yet made it take advantage of the changed interface though. The crucial change, and probably why I didn't do it this way from the beginning, is to make each CommandStart action be run with exceptions caught, and if it fails, increment a failure counter in annex state. So I finally remove the very first code I wrote for git-annex, which was before I had exception handling in the Annex monad, and so ran outside that monad, passing state explicitly as it ran each CommandStart action. This was a real slog from 1 to 5 am. Test suite passes. Memory usage is lower than before, sometimes by a couple of megabytes, and remains constant, even when running in a large repo, and even when repeatedly failing and incrementing the error counter. So no accidental laziness space leaks. Wall clock speed is identical, even in large repos. This commit was sponsored by an anonymous bitcoiner.
86 lines
2.3 KiB
Haskell
86 lines
2.3 KiB
Haskell
{- git-annex command
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-
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- Copyright 2013 Joey Hess <joey@kitenet.net>
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- Copyright 2013 Antoine Beaupré
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.List where
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import qualified Data.Set as S
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import qualified Data.Map as M
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import Data.Function
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import Data.Tuple.Utils
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import Data.Ord
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import Common.Annex
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import Command
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import Remote
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import Logs.Trust
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import Logs.UUID
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import Annex.UUID
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import qualified Option
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import qualified Annex
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import Git.Types (RemoteName)
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def :: [Command]
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def = [noCommit $ withOptions [allrepos] $ command "list" paramPaths seek
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SectionQuery "show which remotes contain files"]
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allrepos :: Option
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allrepos = Option.flag [] "allrepos" "show all repositories, not only remotes"
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seek :: CommandSeek
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seek ps = do
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list <- getList
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printHeader list
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withFilesInGit (whenAnnexed $ start list) ps
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getList :: Annex [(UUID, RemoteName, TrustLevel)]
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getList = ifM (Annex.getFlag $ Option.name allrepos)
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( nubBy ((==) `on` fst3) <$> ((++) <$> getRemotes <*> getAll)
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, getRemotes
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)
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where
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getRemotes = do
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rs <- remoteList
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ts <- mapM (lookupTrust . uuid) rs
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hereu <- getUUID
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heretrust <- lookupTrust hereu
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return $ (hereu, "here", heretrust) : zip3 (map uuid rs) (map name rs) ts
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getAll = do
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rs <- M.toList <$> uuidMap
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rs3 <- forM rs $ \(u, n) -> (,,)
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<$> pure u
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<*> pure n
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<*> lookupTrust u
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return $ sortBy (comparing snd3) $
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filter (\t -> thd3 t /= DeadTrusted) rs3
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printHeader :: [(UUID, RemoteName, TrustLevel)] -> Annex ()
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printHeader l = liftIO $ putStrLn $ header $ map (\(_, n, t) -> (n, t)) l
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start :: [(UUID, RemoteName, TrustLevel)] -> FilePath -> (Key, Backend) -> CommandStart
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start l file (key, _) = do
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ls <- S.fromList <$> keyLocations key
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liftIO $ putStrLn $ format (map (\(u, _, t) -> (t, S.member u ls)) l) file
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stop
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type Present = Bool
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header :: [(RemoteName, TrustLevel)] -> String
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header remotes = unlines (zipWith formatheader [0..] remotes) ++ pipes (length remotes)
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where
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formatheader n (remotename, trustlevel) = pipes n ++ remotename ++ trust trustlevel
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pipes = flip replicate '|'
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trust UnTrusted = " (untrusted)"
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trust _ = ""
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format :: [(TrustLevel, Present)] -> FilePath -> String
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format remotes file = thereMap ++ " " ++ file
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where
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thereMap = concatMap there remotes
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there (UnTrusted, True) = "x"
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there (_, True) = "X"
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there (_, False) = "_"
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