whereis: New subcommand to show where a file's content has gotten to.

Command/Whereis.hs

@@ -0,0 +1,41 @@
+{- git-annex command
+ -
+ - Copyright 2010 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.Whereis where
+
+import Control.Monad.State (liftIO)
+
+import qualified Annex
+import LocationLog
+import Command
+import Content
+import Messages
+import UUID
+import Types
+
+command :: [Command]
+command = [Command "whereis" (paramOptional $ paramRepeating paramPath) seek
+	"lists repositories that have file content"]
+
+seek :: [CommandSeek]
+seek = [withFilesInGit start]
+
+start :: CommandStartString
+start file = isAnnexed file $ \(key, _) -> do
+	showStart "whereis" file
+	return $ Just $ perform key
+
+perform :: Key -> CommandPerform
+perform key = do
+	g <- Annex.gitRepo
+	uuids <- liftIO $ keyLocations g key
+	pp <- prettyPrintUUIDs uuids
+	showLongNote $ pp
+	showProgress
+	if null $ uuids
+		then return Nothing
+		else return $ Just $ return True

GitAnnex.hs

@@ -34,6 +34,7 @@ import qualified Command.Unlock
 import qualified Command.Lock
 import qualified Command.PreCommit
 import qualified Command.Find
+import qualified Command.Whereis
 import qualified Command.Migrate
 import qualified Command.Uninit
 import qualified Command.Trust
@@ -66,6 +67,7 @@ cmds = concat
 	, Command.Unused.command
 	, Command.DropUnused.command
 	, Command.Find.command
+	, Command.Whereis.command
 	, Command.Migrate.command
 	, Command.Map.command
 	]

debian/changelog

@@ -1,6 +1,7 @@
 git-annex (0.23) UNRELEASED; urgency=low
 
   * Support ssh remotes with a port specified.
+  * whereis: New subcommand to show where a file's content has gotten to.
 
  -- Joey Hess <joeyh@debian.org>  Sat, 05 Mar 2011 15:39:13 -0400
 

doc/git-annex.mdwn

@@ -154,6 +154,11 @@ Many git-annex commands will stage changes for later `git commit` by you.
   With no parameters, defaults to finding all files in the current directory
   and its subdirectories.
 
+* whereis [path ...]
+
+  Displays a list of repositories known to contain the content of the
+  specified file or files.
+
 * migrate [path ...]
 
   Changes the specified annexed files to store their content in the