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authorGravatar Joey Hess <joeyh@joeyh.name>2016-11-15 21:29:54 -0400
committerGravatar Joey Hess <joeyh@joeyh.name>2016-11-15 21:29:54 -0400
commit381766efcdddb4c8706408a90c515470a6aa43a7 (patch)
treedda693b36724839ff2daff0e0766b7bdd883ea2c /Utility/Daemon.hs
parent27fafd61c39f8436e19e8fd449b5851ead10bbd1 (diff)
Avoid backtraces on expected failures when built with ghc 8; only use backtraces for unexpected errors.
ghc 8 added backtraces on uncaught errors. This is great, but git-annex was using error in many places for a error message targeted at the user, in some known problem case. A backtrace only confuses such a message, so omit it. Notably, commands like git annex drop that failed due to eg, numcopies, used to use error, so had a backtrace. This commit was sponsored by Ethan Aubin.
Diffstat (limited to 'Utility/Daemon.hs')
-rw-r--r--Utility/Daemon.hs4
1 files changed, 2 insertions, 2 deletions
diff --git a/Utility/Daemon.hs b/Utility/Daemon.hs
index 3cc2eb261..5c0ea4169 100644
--- a/Utility/Daemon.hs
+++ b/Utility/Daemon.hs
@@ -111,7 +111,7 @@ lockPidFile pidfile = do
#endif
alreadyRunning :: IO ()
-alreadyRunning = error "Daemon is already running."
+alreadyRunning = giveup "Daemon is already running."
{- Checks if the daemon is running, by checking that the pid file
- is locked by the same process that is listed in the pid file.
@@ -135,7 +135,7 @@ checkDaemon pidfile = bracket setup cleanup go
check _ Nothing = Nothing
check (Just (pid, _)) (Just pid')
| pid == pid' = Just pid
- | otherwise = error $
+ | otherwise = giveup $
"stale pid in " ++ pidfile ++
" (got " ++ show pid' ++
"; expected " ++ show pid ++ " )"