# HG changeset patch
# User Andrei Vermel <avermel@mail.ru>
# Date 1171533103 -10800
# Node ID 18dcc22666a084890cddcafe18f650ff9839671f
# Parent  587c6c652f82ebe90bb0217f9539e92e1ca75118
Make extdiff work at root directory

diff -r 587c6c652f82 -r 18dcc22666a0 hgext/extdiff.py
--- a/hgext/extdiff.py	Thu Feb 15 05:38:00 2007 -0200
+++ b/hgext/extdiff.py	Thu Feb 15 12:51:43 2007 +0300
@@ -58,7 +58,10 @@
         '''snapshot files as of some revision'''
         changes = repo.changelog.read(node)
         mf = repo.manifest.read(changes[0])
-        dirname = '%s.%s' % (os.path.basename(repo.root), short(node))
+        dirname = os.path.basename(repo.root)
+        if dirname == "":
+            dirname = "root"
+        dirname = '%s.%s' % (dirname, short(node))
         base = os.path.join(tmproot, dirname)
         os.mkdir(base)
         if not ui.quiet:
@@ -82,6 +85,8 @@
         if not using snapshot, -I/-X does not work and recursive diff
         in tools like kdiff3 and meld displays too many files.'''
         dirname = os.path.basename(repo.root)
+        if dirname == "":
+            dirname = "root"
         base = os.path.join(tmproot, dirname)
         os.mkdir(base)
         if not ui.quiet: