move annex.numcopies parsing into withNumCopies

Command.hs

@@ -59,9 +59,6 @@ type CommandStartKey = Key -> CommandStart
 type BackendFile = (FilePath, Maybe (Backend Annex))
 type CommandSeekBackendFiles = CommandStartBackendFile -> CommandSeek
 type CommandStartBackendFile = BackendFile -> CommandStart
-type AttrFile = (FilePath, String)
-type CommandSeekAttrFiles = CommandStartAttrFile -> CommandSeek
-type CommandStartAttrFile = AttrFile -> CommandStart
 type CommandSeekNothing = CommandStart -> CommandSeek
 type CommandStartNothing = CommandStart
 
@@ -129,14 +126,18 @@ withFilesInGit a params = do
 	repo <- Annex.gitRepo
 	files <- liftIO $ runPreserveOrder (LsFiles.inRepo repo) params
 	liftM (map a) $ filterFiles files
-withAttrFilesInGit :: String -> CommandSeekAttrFiles
+withAttrFilesInGit :: String -> ((FilePath, String) -> CommandStart) -> CommandSeek
 withAttrFilesInGit attr a params = do
 	repo <- Annex.gitRepo
 	files <- liftIO $ runPreserveOrder (LsFiles.inRepo repo) params
 	files' <- filterFiles files
 	liftM (map a) $ liftIO $ Git.checkAttr repo attr files'
-withNumCopies :: CommandSeekAttrFiles
-withNumCopies = withAttrFilesInGit "annex.numcopies"
+withNumCopies :: (FilePath -> Maybe Int -> CommandStart) -> CommandSeek
+withNumCopies a params = withAttrFilesInGit "annex.numcopies" go params
+	where
+		go (file, v) = do
+			let numcopies = readMaybe v
+			a file numcopies
 withBackendFilesInGit :: CommandSeekBackendFiles
 withBackendFilesInGit a params = do
 	repo <- Annex.gitRepo

Command/Copy.hs

@@ -9,7 +9,6 @@ module Command.Copy where
 
 import Command
 import qualified Command.Move
-import Utility
 
 command :: [Command]
 command = [repoCommand "copy" paramPaths seek
@@ -20,9 +19,7 @@ seek = [withNumCopies start]
 
 -- A copy is just a move that does not delete the source file.
 -- However, --auto mode avoids unnecessary copies.
-start :: CommandStartAttrFile
-start (file, attr) = isAnnexed file $ \(key, _) ->
+start :: FilePath -> Maybe Int -> CommandStart
+start file numcopies = isAnnexed file $ \(key, _) ->
 	autoCopies key (<) numcopies $
 		Command.Move.start False file
-	where
-		numcopies = readMaybe attr

Command/Drop.hs

@@ -14,7 +14,6 @@ import LocationLog
 import Types
 import Content
 import Messages
-import Utility
 import Utility.Conditional
 import Trust
 import Config
@@ -28,16 +27,14 @@ seek = [withNumCopies start]
 
 {- Indicates a file's content is not wanted anymore, and should be removed
  - if it's safe to do so. -}
-start :: CommandStartAttrFile
-start (file, attr) = isAnnexed file $ \(key, _) -> do
+start :: FilePath -> Maybe Int -> CommandStart
+start file numcopies = isAnnexed file $ \(key, _) -> do
 	present <- inAnnex key
 	if present
 		then autoCopies key (>) numcopies $ do
 			showStart "drop" file
 			next $ perform key numcopies
 		else stop
-	where
-		numcopies = readMaybe attr
 
 perform :: Key -> Maybe Int -> CommandPerform
 perform key numcopies = do

Command/Fsck.hs

@@ -20,7 +20,6 @@ import qualified Types.Key
 import UUID
 import Types
 import Messages
-import Utility
 import Content
 import LocationLog
 import Locations
@@ -35,10 +34,10 @@ command = [repoCommand "fsck" paramPaths seek "check for problems"]
 seek :: [CommandSeek]
 seek = [withNumCopies start]
 
-start :: CommandStartAttrFile
-start (file, attr) = notBareRepo $ isAnnexed file $ \(key, backend) -> do
+start :: FilePath -> Maybe Int -> CommandStart
+start file numcopies = notBareRepo $ isAnnexed file $ \(key, backend) -> do
 	showStart "fsck" file
-	next $ perform key file backend $ readMaybe attr
+	next $ perform key file backend numcopies
 
 perform :: Key -> FilePath -> Backend Annex -> Maybe Int -> CommandPerform
 perform key file backend numcopies = do

Command/Get.hs

@@ -13,7 +13,6 @@ import qualified Remote
 import Types
 import Content
 import Messages
-import Utility
 import qualified Command.Move
 
 command :: [Command]
@@ -23,8 +22,8 @@ command = [repoCommand "get" paramPaths seek
 seek :: [CommandSeek]
 seek = [withNumCopies start]
 
-start :: CommandStartAttrFile
-start (file, attr) = isAnnexed file $ \(key, _) -> do
+start :: FilePath -> Maybe Int -> CommandStart
+start file numcopies = isAnnexed file $ \(key, _) -> do
 	inannex <- inAnnex key
 	if inannex
 		then stop
@@ -37,8 +36,6 @@ start (file, attr) = isAnnexed file $ \(key, _) -> do
 					-- get --from = copy --from
 					src <- Remote.byName name
 					next $ Command.Move.fromPerform src False key
-	where
-		numcopies = readMaybe attr
 
 perform :: Key -> CommandPerform
 perform key = do