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+{- git-annex command
+ -
+ - Copyright 2013 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.Content where
+
+import Common.Annex
+import Command
+import qualified Remote
+import Logs.PreferredContent
+
+import qualified Data.Map as M
+
+def :: [Command]
+def = [command "content" (paramPair paramRemote (paramOptional paramExpression)) seek
+ SectionSetup "get or set preferred content expression"]
+
+seek :: [CommandSeek]
+seek = [withWords start]
+
+start :: [String] -> CommandStart
+start = parse
+ where
+ parse (name:[]) = go name performGet
+ parse (name:expr:[]) = go name $ \uuid -> do
+ showStart "content" name
+ performSet expr uuid
+ parse _ = error "Specify a repository."
+
+ go name a = do
+ u <- Remote.nameToUUID name
+ next $ a u
+
+performGet :: UUID -> CommandPerform
+performGet uuid = do
+ m <- preferredContentMapRaw
+ liftIO $ putStrLn $ fromMaybe "" $ M.lookup uuid m
+ next $ return True
+
+performSet :: String -> UUID -> CommandPerform
+performSet expr uuid = case checkPreferredContentExpression expr of
+ Just e -> error $ "Parse error: " ++ e
+ Nothing -> do
+ preferredContentSet uuid expr
+ next $ return True