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|
{- git-annex assistant
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Assistant where
import Common.Annex
import Command
import qualified Option
import qualified Command.Watch
import Init
import Config.Files
import qualified Build.SysConfig
import System.Environment
def :: [Command]
def = [noRepo checkAutoStart $ dontCheck repoExists $
withOptions [Command.Watch.foregroundOption, Command.Watch.stopOption, autoStartOption] $
command "assistant" paramNothing seek SectionCommon
"automatically handle changes"]
autoStartOption :: Option
autoStartOption = Option.flag [] "autostart" "start in known repositories"
seek :: [CommandSeek]
seek = [withFlag Command.Watch.stopOption $ \stopdaemon ->
withFlag Command.Watch.foregroundOption $ \foreground ->
withFlag autoStartOption $ \autostart ->
withNothing $ start foreground stopdaemon autostart]
start :: Bool -> Bool -> Bool -> CommandStart
start foreground stopdaemon autostart
| autostart = do
liftIO autoStart
stop
| otherwise = do
ensureInitialized
Command.Watch.start True foreground stopdaemon
{- Run outside a git repository. Check to see if any parameter is
- --autostart and enter autostart mode. -}
checkAutoStart :: IO ()
checkAutoStart = ifM (elem "--autostart" <$> getArgs)
( autoStart
, error "Not in a git repository."
)
autoStart :: IO ()
autoStart = do
dirs <- liftIO readAutoStartFile
when (null dirs) $ do
f <- autoStartFile
error $ "Nothing listed in " ++ f
program <- readProgramFile
haveionice <- pure Build.SysConfig.ionice <&&> inPath "ionice"
forM_ dirs $ \d -> do
putStrLn $ "git-annex autostart in " ++ d
ifM (catchBoolIO $ go haveionice program d)
( putStrLn "ok"
, putStrLn "failed"
)
where
go haveionice program dir = do
setCurrentDirectory dir
if haveionice
then boolSystem "ionice" [Param "-c3", Param program, Param "assistant"]
else boolSystem program [Param "assistant"]
|
