45 lines
1.1 KiB
Haskell
45 lines
1.1 KiB
Haskell
{- git-annex command
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-
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- Copyright 2015 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.GroupWanted where
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import Common.Annex
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import qualified Annex
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import Command
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import Logs.PreferredContent
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import Types.Messages
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import Types.Group
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import qualified Data.Map as M
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cmd :: [Command]
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cmd = [command "groupwanted" (paramPair paramGroup (paramOptional paramExpression)) seek
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SectionSetup "get or set groupwanted expression"]
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seek :: CommandSeek
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seek = withWords start
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start :: [String] -> CommandStart
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start (g:[]) = next $ performGet g
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start (g:expr:[]) = do
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showStart "groupwanted" g
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next $ performSet g expr
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start _ = error "Specify a group."
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performGet :: Group -> CommandPerform
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performGet g = do
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Annex.setOutput QuietOutput
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m <- groupPreferredContentMapRaw
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liftIO $ putStrLn $ fromMaybe "" $ M.lookup g m
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next $ return True
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performSet :: Group -> String -> CommandPerform
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performSet g expr = case checkPreferredContentExpression expr of
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Just e -> error $ "Parse error: " ++ e
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Nothing -> do
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groupPreferredContentSet g expr
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next $ return True
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