diff mercurial/interfaces/dirstate.py @ 50086:76d44983a398

dirstate: remove the dedicated backup logic

When alone, the dirstate can now take care of its commit/rollback pattern
itself.

When in a transaction, the transaction deal with commit/rollback pattern quite
fine.

Why did you have a dedicated backup logic?

--- a/mercurial/interfaces/dirstate.py	Thu Feb 16 04:02:36 2023 +0100
+++ b/mercurial/interfaces/dirstate.py	Thu Feb 16 04:49:35 2023 +0100
@@ -220,15 +220,6 @@
         return files in the dirstate (in whatever state) filtered by match
         """
 
-    def savebackup(tr, backupname):
-        '''Save current dirstate into backup file'''
-
-    def restorebackup(tr, backupname):
-        '''Restore dirstate by backup file'''
-
-    def clearbackup(tr, backupname):
-        '''Clear backup file'''
-
     def verify(m1, m2, p1, narrow_matcher=None):
         """
         check the dirstate contents against the parent manifest and yield errors