49 lines
1.4 KiB
Haskell
49 lines
1.4 KiB
Haskell
{- git-annex command checks
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-
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- Common sanity checks for commands, and an interface to selectively
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- remove them, or add others.
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-
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- Copyright 2011-2013 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 Checks where
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import Common.Annex
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import Types.Command
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import Annex.Init
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import Config
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import Utility.Daemon
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import qualified Git
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commonChecks :: [CommandCheck]
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commonChecks = [repoExists]
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repoExists :: CommandCheck
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repoExists = CommandCheck 0 ensureInitialized
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notDirect :: Command -> Command
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notDirect = addCheck $ whenM isDirect $
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error "You cannot run this command in a direct mode repository."
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notBareRepo :: Command -> Command
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notBareRepo = addCheck $ whenM (fromRepo Git.repoIsLocalBare) $
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error "You cannot run this command in a bare repository."
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noDaemonRunning :: Command -> Command
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noDaemonRunning = addCheck $ whenM (isJust <$> daemonpid) $
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error "You cannot run this command while git-annex watch or git-annex assistant is running."
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where
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daemonpid = liftIO . checkDaemon =<< fromRepo gitAnnexPidFile
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dontCheck :: CommandCheck -> Command -> Command
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dontCheck check cmd = mutateCheck cmd $ \c -> filter (/= check) c
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addCheck :: Annex () -> Command -> Command
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addCheck check cmd = mutateCheck cmd $ \c ->
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CommandCheck (length c + 100) check : c
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mutateCheck :: Command -> ([CommandCheck] -> [CommandCheck]) -> Command
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mutateCheck cmd@(Command { cmdcheck = c }) a = cmd { cmdcheck = a c }
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