Add support for diffstat in commit emails, and move diffstat from

Add support for diffstat in commit emails, and move diffstat from
patchbomb to patch

--- a/hgext/notify.py	Thu Sep 14 19:24:00 2006 -0700
+++ b/hgext/notify.py	Wed Sep 13 13:14:08 2006 -0700
@@ -240,6 +240,9 @@
         prev = self.repo.changelog.parents(node)[0]
         patch.diff(self.repo, prev, ref, fp=fp)
         difflines = fp.getvalue().splitlines(1)
+        if self.ui.configbool('notify', 'diffstat', True):
+            s = patch.diffstat(difflines)
+            self.sio.write('\ndiffstat:\n\n' + s)
         if maxdiff > 0 and len(difflines) > maxdiff:
             self.sio.write(_('\ndiffs (truncated from %d to %d lines):\n\n') %
                            (len(difflines), maxdiff))

--- a/hgext/patchbomb.py	Thu Sep 14 19:24:00 2006 -0700
+++ b/hgext/patchbomb.py	Wed Sep 13 13:14:08 2006 -0700
@@ -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 @@
     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 @@
         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')

--- a/mercurial/patch.py	Thu Sep 14 19:24:00 2006 -0700
+++ b/mercurial/patch.py	Wed Sep 13 13:14:08 2006 -0700
@@ -9,7 +9,8 @@
 from i18n import gettext as _
 from node import *
 demandload(globals(), "cmdutil mdiff util")
-demandload(globals(), "cStringIO email.Parser errno os re shutil sys tempfile")
+demandload(globals(), '''cStringIO email.Parser errno os re shutil sys tempfile
+                         popen2''')
 
 # helper functions
 
@@ -550,3 +551,24 @@
 
     for seqno, cset in enumerate(revs):
         single(cset, seqno, fp)
+
+def diffstat(patchlines):
+    fd, name = tempfile.mkstemp(prefix="hg-patchbomb-", suffix=".txt")
+    try:
+        p = popen2.Popen3('diffstat -p1 -w79 2>/dev/null > ' + name)
+        try:
+            for line in patchlines: 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