add reflog messages

Annex/AdjustedBranch.hs

@@ -167,7 +167,7 @@ adjustToCrippledFileSystem = do
 adjustBranch :: Adjustment -> OrigBranch -> Annex AdjBranch
 adjustBranch adj origbranch = do
 	sha <- adjust adj origbranch
-	inRepo $ Git.Branch.update adjbranch sha
+	inRepo $ Git.Branch.update "entering adjusted branch" adjbranch sha
 	return adjbranch
   where
 	adjbranch = originalToAdjusted origbranch adj
@@ -254,7 +254,7 @@ updateAdjustedBranch tomerge (origbranch, adj) commitmode = catchBoolIO $
 	 -}
 	recommit commitsprevented currbranch parent (Just commit) = do
 		commitsha <- commitAdjustedTree (commitTree commit) parent
-		inRepo $ Git.Branch.update currbranch commitsha
+		inRepo $ Git.Branch.update "merging into adjusted branch" currbranch commitsha
 		propigateAdjustedCommits' origbranch (adj, currbranch) commitsprevented
 		return True
 	recommit _ _ _ Nothing = return False
@@ -292,7 +292,7 @@ propigateAdjustedCommits' origbranch (adj, currbranch) _commitsprevented = do
 		-- in order made.
 		[Param "--reverse"]
 	go parent _ [] = do
-		inRepo $ Git.Branch.update origbranch parent
+		inRepo $ Git.Branch.update "updating adjusted branch" origbranch parent
 		return (Right parent)
 	go parent pastadjcommit (sha:l) = do
 		mc <- catCommit sha
@@ -311,7 +311,7 @@ propigateAdjustedCommits' origbranch (adj, currbranch) _commitsprevented = do
 		-- and reparent it on top of the new
 		-- version of the origbranch.
 		commitAdjustedTree (commitTree currcommit) newparent
-			>>= inRepo . Git.Branch.update currbranch
+			>>= inRepo . Git.Branch.update "rebasing adjusted branch on top of updated original branch" currbranch
 
 {- Reverses an adjusted commit, and commit on top of the provided newparent,
  - yielding a commit sha.

Annex/Direct.hs

@@ -225,7 +225,7 @@ mergeDirectCommit allowff old branch commitmode = do
 	let merge_msg = d </> "MERGE_MSG"
 	let merge_mode = d </> "MERGE_MODE"
 	ifM (pure allowff <&&> canff)
-		( inRepo $ Git.Branch.update Git.Ref.headRef branch -- fast forward
+		( inRepo $ Git.Branch.update "merge" Git.Ref.headRef branch -- fast forward
 		, do
 			msg <- liftIO $
 				catchDefaultIO ("merge " ++ fromRef branch) $
@@ -462,7 +462,7 @@ switchHEAD = maybe noop switch =<< inRepo Git.Branch.currentUnsafe
   where
 	switch orighead = do
 		let newhead = directBranch orighead
-		maybe noop (inRepo . Git.Branch.update newhead)
+		maybe noop (inRepo . Git.Branch.update "entering direct mode" newhead)
 			=<< inRepo (Git.Ref.sha orighead)
 		inRepo $ Git.Branch.checkout newhead
 
@@ -475,7 +475,7 @@ switchHEADBack = maybe noop switch =<< inRepo Git.Branch.currentUnsafe
 		case v of
 			Just headsha
 				| orighead /= currhead -> do
-					inRepo $ Git.Branch.update orighead headsha
+					inRepo $ Git.Branch.update "leaving direct mode" orighead headsha
 					inRepo $ Git.Branch.checkout orighead
 					inRepo $ Git.Branch.delete currhead
 			_ -> inRepo $ Git.Branch.checkout orighead

Git/Branch.hs

@@ -100,7 +100,7 @@ fastForward branch (first:rest) repo =
   where
 	no_ff = return False
 	do_ff to = do
-		update branch to repo
+		update' branch to repo
 		return True
 	findbest c [] = return $ Just c
 	findbest c (r:rs)
@@ -155,7 +155,7 @@ commit commitmode allowempty message branch parentrefs repo = do
 	ifM (cancommit tree)
 		( do
 			sha <- commitTree commitmode message parentrefs tree repo
-			update branch sha repo
+			update' branch sha repo
 			return $ Just sha
 		, return Nothing
 		)
@@ -185,8 +185,17 @@ forcePush :: String -> String
 forcePush b = "+" ++ b
 
 {- Updates a branch (or other ref) to a new Sha. -}
-update :: Branch -> Sha -> Repo -> IO ()
-update branch sha = run 
+update :: String -> Branch -> Sha -> Repo -> IO ()
+update message branch sha = run
+	[ Param "update-ref"
+	, Param "-m"
+	, Param message
+	, Param $ fromRef branch
+	, Param $ fromRef sha
+	]
+
+update' :: Branch -> Sha -> Repo -> IO ()
+update' branch sha = run
 	[ Param "update-ref"
 	, Param $ fromRef branch
 	, Param $ fromRef sha