diff options
Diffstat (limited to 'git-annex.hs')
-rw-r--r-- | git-annex.hs | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/git-annex.hs b/git-annex.hs index 947868f23..71a21379d 100644 --- a/git-annex.hs +++ b/git-annex.hs @@ -1,6 +1,6 @@ {- git-annex main program -} -import Control.Exception +import IO (try) import System.IO import System.Environment @@ -18,8 +18,9 @@ main = do (flags, actions) <- parseCmd args state tryRun state $ [startup flags] ++ actions ++ [shutdown] -{- Runs a list of Annex actions. Catches exceptions, not stopping - - if some error out, and propigates an overall error status at the end. +{- Runs a list of Annex actions. Catches IO errors and continues + - (but explicitly thrown errors terminate the whole command). + - Propigates an overall error status at the end. - - This runs in the IO monad, not in the Annex monad. It seems that - exceptions can only be caught in the IO monad, not in a stacked monad; @@ -29,8 +30,7 @@ main = do tryRun :: AnnexState -> [Annex ()] -> IO () tryRun state actions = tryRun' state 0 actions tryRun' state errnum (a:as) = do - result <- try - (Annex.run state a)::IO (Either SomeException ((), AnnexState)) + result <- try $ Annex.run state a case (result) of Left err -> do showErr err |