Removed the setkey command, and added a setcontent command with a more useful interface.

Command/Fsck.hs

@@ -38,7 +38,7 @@ perform key file backend numcopies = check
 	[ verifyLocationLog key file
 	, checkKeySize key
 	, checkKeyNumCopies key file numcopies
-	, (Types.Backend.fsckKey backend) key
+	, checkBackend backend key
 	]
 
 {- To fsck a bare repository, fsck each key in the location log. -}
@@ -65,7 +65,7 @@ performBare :: Key -> Backend Annex -> CommandPerform
 performBare key backend = check
 	[ verifyLocationLog key (show key)
 	, checkKeySize key
-	, (Types.Backend.fsckKey backend) key
+	, checkBackend backend key
 	]
 
 check :: [Annex Bool] -> CommandPerform	
@@ -134,6 +134,9 @@ checkKeySize key = do
 					return False
 
 
+checkBackend :: Backend Annex -> Key -> Annex Bool
+checkBackend backend key =  (Types.Backend.fsckKey backend) key
+
 checkKeyNumCopies :: Key -> FilePath -> Maybe Int -> Annex Bool
 checkKeyNumCopies key file numcopies = do
 	needed <- getNumCopies numcopies

Command/SetContent.hs

@@ -0,0 +1,56 @@
+{- git-annex command
+ -
+ - Copyright 2011 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.SetContent where
+
+import Common.Annex
+import Command
+import Logs.Location
+import Annex.Content
+import qualified Backend
+import qualified Command.Fsck
+
+def :: [Command]
+def = [command "setcontent" (paramPair paramPath paramPath) seek
+	"sets content of annexed file"]
+
+seek :: [CommandSeek]
+seek = [withWords start]
+
+start :: [FilePath] -> CommandStart
+start (src:dest:[]) = do
+	showStart "setkey" dest
+	next $ perform src dest
+start _ = error "specify a src file and a dest file"
+
+perform :: FilePath -> FilePath -> CommandPerform
+perform src dest = go =<< Backend.lookupFile dest
+	where
+		go Nothing = error "dest file is not in annex"
+		go (Just (key, backend)) = do
+			-- the file might be on a different filesystem,
+			-- so mv is used rather than simply calling
+			-- moveToObjectDir; disk space is also
+			-- checked this way.
+			ok <- getViaTmp key $ \tmp ->
+				if dest /= src
+					then liftIO $
+						boolSystem "mv" [File src, File tmp]
+					else return True
+			if ok
+				then next $ cleanup key backend
+				else error "mv failed!"
+
+cleanup :: Key -> Backend Annex -> CommandCleanup
+cleanup key backend = do
+	logStatus key InfoPresent
+
+	-- fsck the new content
+	size_ok <- Command.Fsck.checkKeySize key
+	backend_ok <- Command.Fsck.checkBackend backend key
+
+	return $ size_ok && backend_ok

Command/SetKey.hs

@@ -1,48 +0,0 @@
-{- git-annex command
- -
- - Copyright 2010 Joey Hess <joey@kitenet.net>
- -
- - Licensed under the GNU GPL version 3 or higher.
- -}
-
-module Command.SetKey where
-
-import Common.Annex
-import Command
-import Logs.Location
-import Annex.Content
-import Config
-
-def :: [Command]
-def = [command "setkey" paramPath seek
-	"sets annexed content for a key using a temp file"]
-
-seek :: [CommandSeek]
-seek = [withStrings start]
-
-{- Sets cached content for a key. -}
-start :: FilePath -> CommandStart
-start file = do
-	showStart "setkey" file
-	next $ perform file
-
-perform :: FilePath -> CommandPerform
-perform file = do
-	key <- cmdlineKey
-	-- the file might be on a different filesystem, so mv is used
-	-- rather than simply calling moveToObjectDir; disk space is also
-	-- checked this way.
-	ok <- getViaTmp key $ \dest ->
-		if dest /= file
-			then liftIO $
-				boolSystem "mv" [File file, File dest]
-			else return True
-	if ok
-		then next cleanup
-		else error "mv failed!"
-
-cleanup :: CommandCleanup
-cleanup = do
-	key <- cmdlineKey
-	logStatus key InfoPresent
-	return True