# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 1120875057 28800
# Node ID b3bba126b04ab2f24274a1bcf5a224c6317c8e0d
# Parent  fafc16f705b6cb413897577b67918af55e1baafe
Fix out of range regression

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Fix out of range regression

From: Filip Brcic <brcha@users.sourceforge.net>

The old revlog.py issued "index out of range" error when cloning the repository
Now I have reverted the parts of revlog.py to the old state when prev was
initialized as -1 and later assigned self.tip() only if that is possible.
Previously prev was always initialized as self.tip() and that is where the
out of range error was.

manifest hash: c94c9aee8b6d382ef52c3981f306a6e7e5f4c4d1
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diff -r fafc16f705b6 -r b3bba126b04a mercurial/revlog.py
--- a/mercurial/revlog.py	Fri Jul 08 13:35:02 2005 -0800
+++ b/mercurial/revlog.py	Fri Jul 08 18:10:57 2005 -0800
@@ -475,7 +475,7 @@
         t = r - 1
         node = nullid
 
-        base = -1
+        base = prev = -1
         start = end = measure = 0
         if r:
             start = self.start(self.base(t))
@@ -491,7 +491,6 @@
 
         # 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)