# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Date 2012-08-31 21:27:26
# Node ID 7c865f30e2b84fd4febd0caf7559e18365354da0
# Parent  1fc45b9a130016639e50c2126915f91610a4a4c8

strip: fix revset usage (issue3604)

The `repair` code builds a giant revset query instead of using the "%lr" idiom.
It is inefficient and crash when the number of stripped changeset is too big.

This changeset replaces the bad code by a better revset usage.

diff --git a/mercurial/repair.py b/mercurial/repair.py
--- a/mercurial/repair.py
+++ b/mercurial/repair.py
@@ -111,9 +111,8 @@ def strip(ui, repo, nodelist, backup="al
         saverevs.difference_update(descendants)
     savebases = [cl.node(r) for r in saverevs]
     stripbases = [cl.node(r) for r in tostrip]
-    rset = ' or '.join([str(r) for r in tostrip])
-    newbmtarget = repo.revs('sort(heads(ancestors(%r) - (%r)), -rev)',
-                            rset, rset)
+    newbmtarget = repo.revs('sort(heads((::%ld) - (%ld)), -rev)',
+                            tostrip, tostrip)
     if newbmtarget:
         newbmtarget = newbmtarget[0]
     else: