git-annex/Command/Group.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

38 lines
862 B
Haskell

{- git-annex command
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Group where
import Command
import qualified Remote
import Logs.Group
import Types.Group
import qualified Data.Set as S
cmd :: Command
cmd = command "group" SectionSetup "add a repository to a group"
(paramPair paramRemote paramDesc) (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords start
start :: [String] -> CommandStart
start (name:g:[]) = do
showStart "group" name
u <- Remote.nameToUUID name
next $ setGroup u g
start (name:[]) = do
u <- Remote.nameToUUID name
showRaw . unwords . S.toList =<< lookupGroups u
stop
start _ = giveup "Specify a repository and a group."
setGroup :: UUID -> Group -> CommandPerform
setGroup uuid g = do
groupChange uuid (S.insert g)
next $ return True