git annex webapp --force forces a restart of the daemon

Useful for testing..

Command/WebApp.hs

@@ -11,7 +11,7 @@ import Common.Annex
 import Command
 import Assistant
 import Utility.WebApp
-import Utility.Daemon
+import Utility.Daemon (checkDaemon)
 import qualified Annex
 
 import Control.Concurrent
@@ -25,9 +25,17 @@ seek = [withNothing start]
 
 start :: CommandStart
 start = notBareRepo $ do
-	r <- checkpid
-	when (r == Nothing) $
-		startassistant
+	ifM (Annex.getState Annex.force)
+		( do
+			stopDaemon
+			liftIO . catchMaybeIO . removeFile
+				=<< fromRepo gitAnnexPidFile
+			startassistant
+		, do
+			r <- checkpid
+			when (r == Nothing) $
+				startassistant
+		)
 	f <- liftIO . absPath =<< fromRepo gitAnnexHtmlShim
 	let url = "file://" ++ f
 	ifM (liftIO $ runBrowser url)

Utility/Daemon.hs

@@ -84,7 +84,7 @@ checkDaemon pidfile = do
 			| otherwise = error $
 				"stale pid in " ++ pidfile ++ 
 				" (got " ++ show pid' ++ 
-				"; expected" ++ show pid ++ " )"
+				"; expected " ++ show pid ++ " )"
 
 {- Stops the daemon, safely. -}
 stopDaemon :: FilePath -> IO ()

Utility/WebApp.hs

@@ -25,7 +25,6 @@ import Control.Exception
 import Crypto.Random
 import Data.Digest.Pure.SHA
 import qualified Data.ByteString.Lazy as L
-import Data.List
 import qualified Data.Text as T
 import qualified Data.Text.Encoding as TE
 import Blaze.ByteString.Builder.Char.Utf8 (fromText)