break module dependancy loop

A PITA but worth it to clean up the trust configuration code.

Remote.hs

@@ -24,6 +24,7 @@ module Remote (
 	prettyPrintUUIDs,
 	remotesWithUUID,
 	remotesWithoutUUID,
+	keyLocations,
 	keyPossibilities,
 	keyPossibilitiesTrusted,
 	nameToUUID,
@@ -40,55 +41,11 @@ import Text.JSON.Generic
 import Common.Annex
 import Types.Remote
 import qualified Annex
-import qualified Git
-import Config
 import Annex.UUID
 import Logs.UUID
 import Logs.Trust
 import Logs.Location
-import Logs.Remote
-
-import qualified Remote.Git
-import qualified Remote.S3
-import qualified Remote.Bup
-import qualified Remote.Directory
-import qualified Remote.Rsync
-import qualified Remote.Web
-import qualified Remote.Hook
-
-remoteTypes :: [RemoteType]
-remoteTypes =
-	[ Remote.Git.remote
-	, Remote.S3.remote
-	, Remote.Bup.remote
-	, Remote.Directory.remote
-	, Remote.Rsync.remote
-	, Remote.Web.remote
-	, Remote.Hook.remote
-	]
-
-{- Builds a list of all available Remotes.
- - Since doing so can be expensive, the list is cached. -}
-remoteList :: Annex [Remote]
-remoteList = do
-	rs <- Annex.getState Annex.remotes
-	if null rs
-		then do
-			m <- readRemoteLog
-			rs' <- concat <$> mapM (process m) remoteTypes
-			Annex.changeState $ \s -> s { Annex.remotes = rs' }
-			return rs'
-		else return rs
-	where
-		process m t = enumerate t >>= mapM (gen m t)
-		gen m t r = do
-			u <- getRepoUUID r
-			checkTrust r u
-			generate t r u (M.lookup u m)
-
-{- All remotes that are not ignored. -}
-enabledRemoteList :: Annex [Remote]
-enabledRemoteList = filterM (repoNotIgnored . repo) =<< remoteList
+import Remote.List
 
 {- Map of UUIDs of Remotes and their names. -}
 remoteMap :: Annex (M.Map UUID String)
@@ -185,27 +142,32 @@ remotesWithUUID rs us = filter (\r -> uuid r `elem` us) rs
 remotesWithoutUUID :: [Remote] -> [UUID] -> [Remote]
 remotesWithoutUUID rs us = filter (\r -> uuid r `notElem` us) rs
 
-{- Cost ordered lists of remotes that the Logs.Location indicate may have a key.
+{- List of repository UUIDs that the location log indicates may have a key.
+ - Dead repositories are excluded. -}
+keyLocations :: Key -> Annex [UUID]
+keyLocations key = snd <$> (trustPartition DeadTrusted =<< loggedLocations key)
+
+{- Cost ordered lists of remotes that the location log indicates
+ - may have a key.
  -}
 keyPossibilities :: Key -> Annex [Remote]
-keyPossibilities key = fst <$> keyPossibilities' False key
+keyPossibilities key = fst <$> keyPossibilities' key []
 
-{- Cost ordered lists of remotes that the Logs.Location indicate may have a key.
+{- Cost ordered lists of remotes that the location log indicates
+ - may have a key.
  -
  - Also returns a list of UUIDs that are trusted to have the key
  - (some may not have configured remotes).
  -}
 keyPossibilitiesTrusted :: Key -> Annex ([Remote], [UUID])
-keyPossibilitiesTrusted = keyPossibilities' True
+keyPossibilitiesTrusted key = keyPossibilities' key =<< trustGet Trusted
 
-keyPossibilities' :: Bool -> Key -> Annex ([Remote], [UUID])
-keyPossibilities' withtrusted key = do
+keyPossibilities' :: Key -> [UUID] -> Annex ([Remote], [UUID])
+keyPossibilities' key trusted = do
 	u <- getUUID
-	trusted <- if withtrusted then trustGet Trusted else return []
 
-	-- get uuids of all remotes that are recorded to have the key
-	uuids <- keyLocations key
-	let validuuids = filter (/= u) uuids
+	-- uuids of all remotes that are recorded to have the key
+	validuuids <- filter (/= u) <$> keyLocations key
 
 	-- note that validuuids is assumed to not have dups
 	let validtrusteduuids = validuuids `intersect` trusted
@@ -241,24 +203,10 @@ showTriedRemotes remotes =
 		(join ", " $ map name remotes)
 
 forceTrust :: TrustLevel -> String -> Annex ()
-forceTrust level remotename = forceTrust' True level =<< nameToUUID remotename
-
-forceTrust' :: Bool -> TrustLevel -> UUID -> Annex ()
-forceTrust' overwrite level u = do
+forceTrust level remotename = do
+	u <- nameToUUID remotename
 	Annex.changeState $ \s ->
-		s { Annex.forcetrust = change u level (Annex.forcetrust s) }
-	-- This change invalidated any cached trustmap.
-	Annex.changeState $ \s -> s { Annex.trustmap = Nothing }
-	where
-		change
-			| overwrite = M.insert
-			| otherwise = M.insertWith (\_new old -> old)
-
-checkTrust :: Git.Repo -> UUID -> Annex ()
-checkTrust r u = set =<< getTrustLevel r
-	where
-		set (Just level) = forceTrust' False level u
-		set Nothing = return ()
+		s { Annex.forcetrust = M.insert u level (Annex.forcetrust s) }
 
 {- Used to log a change in a remote's having a key. The change is logged
  - in the local repo, not on the remote. The process of transferring the