# HG changeset patch
# User Benoit Boissinot <benoit.boissinot@ens-lyon.org>
# Date 1128375914 25200
# Node ID f2b00be33e2c586daae8a778ea1587af3dd00e7e
# Parent  c3654cfaa77d92a8247b6224956307e88be0377a
Fix traceback when nothing was added during unbundle

The changegroup and commit hook are now run only when
something is modified.
The correct number of changesets added is printed.



diff -r c3654cfaa77d -r f2b00be33e2c mercurial/localrepo.py
--- a/mercurial/localrepo.py	Mon Oct 03 14:43:11 2005 -0700
+++ b/mercurial/localrepo.py	Mon Oct 03 14:45:14 2005 -0700
@@ -992,6 +992,8 @@
         co = self.changelog.tip()
         cn = self.changelog.addgroup(getgroup(), csmap, tr, 1) # unique
         cnr, cor = map(self.changelog.rev, (cn, co))
+        if cn == nullid:
+            cnr = cor
         changesets = cnr - cor
 
         # pull off the manifest group
@@ -1022,12 +1024,14 @@
 
         tr.close()
 
-        if not self.hook("changegroup", node=hex(self.changelog.node(cor+1))):
-            self.ui.warn("abort: changegroup hook returned failure!\n")
-            return 1
+        if changesets > 0:
+            if not self.hook("changegroup",
+                              node=hex(self.changelog.node(cor+1))):
+                self.ui.warn("abort: changegroup hook returned failure!\n")
+                return 1
 
-        for i in range(cor + 1, cnr + 1):
-            self.hook("commit", node=hex(self.changelog.node(i)))
+            for i in range(cor + 1, cnr + 1):
+                self.hook("commit", node=hex(self.changelog.node(i)))
 
         return