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-rw-r--r--Command/NumCopies.hs56
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+{- git-annex command
+ -
+ - Copyright 2014 Joey Hess <joey@kitenet.net>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.NumCopies where
+
+import Common.Annex
+import qualified Annex
+import Command
+import Logs.NumCopies
+import Types.Messages
+
+def :: [Command]
+def = [command "numcopies" paramNumber seek
+ SectionSetup "configure desired number of copies"]
+
+seek :: CommandSeek
+seek = withWords start
+
+start :: [String] -> CommandStart
+start [] = startGet
+start [s] = do
+ case readish s of
+ Nothing -> error $ "Bad number: " ++ s
+ Just n
+ | n > 0 -> startSet n
+ | n == 0 -> ifM (Annex.getState Annex.force)
+ ( startSet n
+ , error "Setting numcopies to 0 is very unsafe. You will lose data! If you really want to do that, specify --force."
+ )
+ | otherwise -> error "Number cannot be negative!"
+start _ = error "Specify a single number."
+
+startGet :: CommandStart
+startGet = next $ next $ do
+ Annex.setOutput QuietOutput
+ v <- getGlobalNumCopies
+ case v of
+ Just n -> liftIO $ putStrLn $ show n
+ Nothing -> do
+ liftIO $ putStrLn $ "global numcopies is not set"
+ old <- annexNumCopies <$> Annex.getGitConfig
+ case old of
+ Nothing -> liftIO $ putStrLn "(default is 1)"
+ Just n -> liftIO $ putStrLn $ "(deprecated git config annex.numcopies is set to " ++ show n ++ " locally)"
+ return True
+
+startSet :: Int -> CommandStart
+startSet n = do
+ showStart "numcopies" (show n)
+ next $ next $ do
+ setGlobalNumCopies n
+ return True