git-annex/Command/Group.hs
Joey Hess 8e5ea28c26
finish CommandStart transition
The hoped for optimisation of CommandStart with -J did not materialize.
In fact, not runnign CommandStart in parallel is slower than -J3.
So, CommandStart are still run in parallel.

(The actual bad performance I've been seeing with -J in my big repo
has to do with building the remoteList.)

But, this is still progress toward making -J faster, because it gets rid
of the onlyActionOn roadblock in the way of making CommandCleanup jobs
run separate from CommandPerform jobs.

Added OnlyActionOn constructor for ActionItem which fixes the
onlyActionOn breakage in the last commit.

Made CustomOutput include an ActionItem, so even things using it can
specify OnlyActionOn.

In Command.Move and Command.Sync, there were CommandStarts that used
includeCommandAction, so output messages, which is no longer allowed.
Fixed by using startingCustomOutput, but that's still not quite right,
since it prevents message display for the includeCommandAction run
inside it too.
2019-06-12 13:24:01 -04:00

42 lines
1 KiB
Haskell

{- git-annex command
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL 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 = noMessages $ command "group" SectionSetup "add a repository to a group"
(paramPair paramRemote paramDesc) (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withWords (commandAction . start)
start :: [String] -> CommandStart
start (name:g:[]) = do
u <- Remote.nameToUUID name
startingUsualMessages "group" (ActionItemOther (Just name)) $
setGroup u (toGroup g)
start (name:[]) = do
u <- Remote.nameToUUID name
startingCustomOutput (ActionItemOther Nothing) $ do
liftIO . putStrLn . unwords . map fmt . S.toList
=<< lookupGroups u
next $ return True
where
fmt (Group g) = decodeBS g
start _ = giveup "Specify a repository and a group."
setGroup :: UUID -> Group -> CommandPerform
setGroup uuid g = do
groupChange uuid (S.insert g)
next $ return True