File: Merge.hs

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{- git-annex command
 -
 - Copyright 2011-2019 Joey Hess <id@joeyh.name>
 -
 - Licensed under the GNU AGPL version 3 or higher.
 -}

module Command.Merge where

import Command
import qualified Annex.Branch
import qualified Git
import qualified Git.Branch
import Annex.CurrentBranch
import Command.Sync (prepMerge, mergeLocal, mergeConfig, merge, SyncOptions(..))
import Git.Types

cmd :: Command
cmd = command "merge" SectionMaintenance
	"merge changes from remotes"
	(paramOptional paramRef) (withParams seek)

seek :: CmdParams -> CommandSeek
seek [] = do
	prepMerge
	commandAction mergeAnnexBranch
	commandAction mergeSyncedBranch
seek bs = do
	prepMerge
	forM_ bs (commandAction . mergeBranch . Git.Ref . encodeBS')

mergeAnnexBranch :: CommandStart
mergeAnnexBranch = starting "merge" ai si $ do
	_ <- Annex.Branch.update
	-- commit explicitly, in case no remote branches were merged
	Annex.Branch.commit =<< Annex.Branch.commitMessage
	next $ return True
  where
	ai = ActionItemOther (Just (fromRef Annex.Branch.name))
	si = SeekInput []

mergeSyncedBranch :: CommandStart
mergeSyncedBranch = mergeLocal mergeConfig def =<< getCurrentBranch

mergeBranch :: Git.Ref -> CommandStart
mergeBranch r = starting "merge" ai si $ do
	currbranch <- getCurrentBranch
	let o = def { notOnlyAnnexOption = True }
	next $ merge currbranch mergeConfig o Git.Branch.ManualCommit r
  where
	ai = ActionItemOther (Just (Git.fromRef r))
	si = SeekInput []