diff mercurial/revlog.py @ 653:94cdd02792b5

Fix corruption resulting from skipping parts of a revision group -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Fix corruption resulting from skipping parts of a revision group We were occassionally losing track of what revision a delta applied to when we skipped over deltas we already had and applying the delta against the wrong base. This could result in coredumps from mpatch, consistency errors, or failed verify. manifest hash: fcf20a8abfd81f08fae2398136b2ed66216b2083 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCzu5SywK+sNU5EO8RAi10AJ9cqIfQzOzbcdH36t1LR/rY+UMtHwCeM79p Dtv+Jh0McLZr6nf4iJyhDgI= =5o6U -----END PGP SIGNATURE-----
author Matt Mackall <mpm@selenic.com>
date Fri, 08 Jul 2005 13:21:22 -0800
parents 08b65d66f3e7
children b3bba126b04a
line wrap: on
line diff
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -475,8 +475,8 @@ class revlog:
         t = r - 1
         node = nullid
 
-        base = prev = -1
-        start = end = 0
+        base = -1
+        start = end = measure = 0
         if r:
             start = self.start(self.base(t))
             end = self.end(t)
@@ -491,6 +491,7 @@ class revlog:
 
         # loop through our set of deltas
         chain = None
+        prev = self.tip()
         for chunk in revs:
             node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80])
             link = linkmapper(cs)
@@ -498,6 +499,7 @@ class revlog:
                 # this can happen if two branches make the same change
                 if unique:
                     raise "already have %s" % hex(node[:4])
+                chain = node
                 continue
             delta = chunk[80:]