registerurl: New plumbing command for mass-adding urls to keys.

CmdLine/GitAnnex.hs

@@ -24,6 +24,7 @@ import qualified Command.Get
 import qualified Command.LookupKey
 import qualified Command.ExamineKey
 import qualified Command.FromKey
+import qualified Command.RegisterUrl
 import qualified Command.DropKey
 import qualified Command.TransferKey
 import qualified Command.TransferKeys

Command/FromKey.hs

@@ -49,7 +49,7 @@ massAdd = go True =<< map words . lines <$> liftIO getContents
 		ok <- perform' key f
 		let !status' = status && ok
 		go status' rest
-	go status (_:rest) = error "Expected pairs of key and file on stdin, but got something else."
+	go _ _ = error "Expected pairs of key and file on stdin, but got something else."
 
 perform :: Key -> FilePath -> CommandPerform
 perform key file = do

Command/RegisterUrl.hs

@@ -0,0 +1,55 @@
+{- git-annex command
+ -
+ - Copyright 2015 Joey Hess <id@joeyh.name>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+{-# LANGUAGE BangPatterns #-}
+
+module Command.RegisterUrl where
+
+import Common.Annex
+import Command
+import Types.Key
+import Logs.Web
+import Annex.UUID
+
+cmd :: [Command]
+cmd = [notDirect $ notBareRepo $
+	command "registerurl" (paramPair paramKey paramUrl) seek
+		SectionPlumbing "registers an url for a key"]
+
+seek :: CommandSeek
+seek = withWords start
+
+start :: [String] -> CommandStart
+start (keyname:url:[]) = do
+	let key = fromMaybe (error "bad key") $ file2key keyname
+	showStart "registerurl" url
+	next $ perform key url
+start [] = do
+	showStart "registerurl" "stdin"
+	next massAdd
+start _ = error "specify a key and an url"
+
+massAdd :: CommandPerform
+massAdd = go True =<< map words . lines <$> liftIO getContents
+  where
+	go status [] = next $ return status
+	go status ([keyname,u]:rest) = do
+		let key = fromMaybe (error $ "bad key " ++ keyname) $ file2key keyname
+		ok <- perform' key u
+		let !status' = status && ok
+		go status' rest
+	go _ _ = error "Expected pairs of key and url on stdin, but got something else."
+
+perform :: Key -> URLString -> CommandPerform
+perform key url = do
+	ok <- perform' key url
+	next $ return ok
+
+perform' :: Key -> URLString -> Annex Bool
+perform' key url = do
+	setUrlPresent webUUID key url
+	return True

debian/changelog

@@ -37,6 +37,7 @@ git-annex (5.2015022) UNRELEASED; urgency=medium
     doesn't exist or git config fails for some reason.
   * fromkey --force: Skip test that the key has its content in the annex.
   * fromkey: Add stdin mode.
+  * registerurl: New plumbing command for mass-adding urls to keys.
 
  -- Joey Hess <id@joeyh.name>  Thu, 19 Feb 2015 14:16:03 -0400
 

doc/git-annex.mdwn

@@ -964,6 +964,17 @@ subdirectories).
   instead read from stdin. Any number of lines can be provided in this
   mode, each containing a key and filename, sepearated by whitespace.
 
+* `registerurl [key url]`
+
+  This plumbing-level command can be used to register urls where a
+  key can be downloaded from.
+
+  No verification is performed of the url's contents.
+
+  If the key and url are not specified on the command line, they are
+  instead read from stdin. Any number of lines can be provided in this
+  mode, each containing a key and url, sepearated by whitespace.
+
 * `dropkey [key ...]`
 
   This plumbing-level command drops the annexed data for the specified