--- a/hgext/patchbomb.py
+++ b/hgext/patchbomb.py
@@ -65,7 +65,7 @@
 
 from mercurial.demandload import *
 demandload(globals(), '''email.MIMEMultipart email.MIMEText email.Utils
-                         mercurial:commands,hg,mail,ui
+                         mercurial:commands,hg,mail,ui,patch
                          os errno popen2 socket sys tempfile time''')
 from mercurial.i18n import gettext as _
 from mercurial.node import *
@@ -76,27 +76,6 @@ try:
     import readline
 except ImportError: pass
 
-def diffstat(patch):
-    fd, name = tempfile.mkstemp(prefix="hg-patchbomb-", suffix=".txt")
-    try:
-        p = popen2.Popen3('diffstat -p1 -w79 2>/dev/null > ' + name)
-        try:
-            for line in patch: print >> p.tochild, line
-            p.tochild.close()
-            if p.wait(): return
-            fp = os.fdopen(fd, 'r')
-            stat = []
-            for line in fp: stat.append(line.lstrip())
-            last = stat.pop()
-            stat.insert(0, last)
-            stat = ''.join(stat)
-            if stat.startswith('0 files'): raise ValueError
-            return stat
-        except: raise
-    finally:
-        try: os.unlink(name)
-        except: pass
-
 def patchbomb(ui, repo, *revs, **opts):
     '''send changesets as a series of patch emails
 
@@ -123,8 +102,8 @@ def patchbomb(ui, repo, *revs, **opts):
         if not prompt(s, default = 'y', rest = '? ').lower().startswith('y'):
             raise ValueError
 
-    def cdiffstat(summary, patch):
-        s = diffstat(patch)
+    def cdiffstat(summary, patchlines):
+        s = patch.diffstat(patchlines)
         if s:
             if summary:
                 ui.write(summary, '\n')