git-annex/Command/Watch.hs
Joey Hess e872c3f648 convert notBareRepo to a CommandCheck
This avoids some small overhead by only running the check once per command;
it also ensures that, even if the command doesn't find anything to run on,
it still fails to run when in a bare repo.
2012-12-29 14:45:19 -04:00

35 lines
895 B
Haskell

{- git-annex watch command
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Watch where
import Common.Annex
import Assistant
import Command
import Option
def :: [Command]
def = [notBareRepo $ withOptions [foregroundOption, stopOption] $
command "watch" paramNothing seek "watch for changes"]
seek :: [CommandSeek]
seek = [withFlag stopOption $ \stopdaemon ->
withFlag foregroundOption $ \foreground ->
withNothing $ start False foreground stopdaemon]
foregroundOption :: Option
foregroundOption = Option.flag [] "foreground" "do not daemonize"
stopOption :: Option
stopOption = Option.flag [] "stop" "stop daemon"
start :: Bool -> Bool -> Bool -> CommandStart
start assistant foreground stopdaemon = do
if stopdaemon
then stopDaemon
else startDaemon assistant foreground Nothing -- does not return
stop