git-annex/Command/Schedule.hs
Joey Hess 0a4479b8ec
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.
2016-11-15 21:29:54 -04:00

53 lines
1.2 KiB
Haskell

{- git-annex command
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Schedule where
import Command
import qualified Annex
import qualified Remote
import Logs.Schedule
import Types.ScheduledActivity
import Types.Messages
import qualified Data.Set as S
cmd :: Command
cmd = command "schedule" SectionSetup "get or set scheduled jobs"
(paramPair paramRemote (paramOptional paramExpression))
(withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start = parse
where
parse (name:[]) = go name performGet
parse (name:expr:[]) = go name $ \uuid -> do
showStart "schedile" name
performSet expr uuid
parse _ = giveup "Specify a repository."
go name a = do
u <- Remote.nameToUUID name
next $ a u
performGet :: UUID -> CommandPerform
performGet uuid = do
Annex.setOutput QuietOutput
s <- scheduleGet uuid
liftIO $ putStrLn $ intercalate "; " $
map fromScheduledActivity $ S.toList s
next $ return True
performSet :: String -> UUID -> CommandPerform
performSet expr uuid = case parseScheduledActivities expr of
Left e -> giveup $ "Parse error: " ++ e
Right l -> do
scheduleSet uuid l
next $ return True