Periodically flush git command queue, to avoid boating memory usage too much.

Since the queue is flushed in between subcommand actions being run,
there should be no issues with actions that expect to queue up some stuff
and have it run after they do other stuff. So I didn't have to audit for
such assumptions.

CmdLine.hs

@@ -14,11 +14,11 @@ module CmdLine (
 import System.IO.Error (try)
 import System.Console.GetOpt
 import Control.Monad.State (liftIO)
-import Control.Monad (when, unless)
+import Control.Monad (when)
 
 import qualified Annex
+import qualified AnnexQueue
 import qualified GitRepo as Git
-import qualified GitQueue
 import Types
 import Command
 import BackendList
@@ -81,7 +81,9 @@ tryRun :: Annex.AnnexState -> [Annex Bool] -> IO ()
 tryRun state actions = tryRun' state 0 actions
 tryRun' :: Annex.AnnexState -> Integer -> [Annex Bool] -> IO ()
 tryRun' state errnum (a:as) = do
-	result <- try $ Annex.run state a
+	result <- try $ Annex.run state $ do
+		AnnexQueue.flushWhenFull
+		a
 	case result of
 		Left err -> do
 			Annex.eval state $ showErr err
@@ -100,10 +102,7 @@ startup = do
 {- Cleanup actions. -}
 shutdown :: Annex Bool
 shutdown = do
-	q <- Annex.getState Annex.repoqueue
-	unless (0 == GitQueue.size q) $ do
-		showSideAction "Recording state in git..."
-		Annex.queueRun
+	AnnexQueue.flush False
 
 	liftIO $ Git.reap