assistant: Deal with upcoming git's refusal to merge unrelated histories by default

git 2.8.1 (or perhaps 2.9.0) is going to prevent git merge from merging in
unrelated branches. Since the webapp's pairing etc features often combine
together repositories with unrelated histories, work around this behavior
change by setting GIT_MERGE_ALLOW_UNRELATED_HISTORIES when the assistant
merges.

Note though that this is not done for git annex sync's merges, so
it will follow git's default or configured behavior.
This commit is contained in:
Joey Hess 2016-04-22 14:26:44 -04:00
parent 8ab27235ea
commit 46e3319995
Failed to extract signature
9 changed files with 90 additions and 46 deletions

View file

@ -21,6 +21,7 @@ import Utility.Parallel
import qualified Git
import qualified Git.Command
import qualified Git.Ref
import qualified Git.Merge
import qualified Remote
import qualified Types.Remote as Remote
import qualified Remote.List as Remote
@ -238,12 +239,19 @@ manualPull currentbranch remotes = do
)
haddiverged <- liftAnnex Annex.Branch.forceUpdate
forM_ normalremotes $ \r ->
liftAnnex $ Command.Sync.mergeRemote r currentbranch
liftAnnex $ Command.Sync.mergeRemote r currentbranch mergeConfig
u <- liftAnnex getUUID
forM_ xmppremotes $ \r ->
sendNetMessage $ Pushing (getXMPPClientID r) (PushRequest u)
return (catMaybes failed, haddiverged)
mergeConfig :: [Git.Merge.MergeConfig]
mergeConfig =
[ Git.Merge.MergeNonInteractive
-- Pairing involves merging unrelated histories
, Git.Merge.MergeUnrelatedHistories
]
{- Start syncing a remote, using a background thread. -}
syncRemote :: Remote -> Assistant ()
syncRemote remote = do