[PATCH 02 of 10] localrepo: introduce "checkoutgoing()" to extend outgoing revision check easily

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1394019743 -32400
#      Wed Mar 05 20:42:23 2014 +0900
# Node ID 202d835ca3a173f808262677fccc796257945268
# Parent  655cacfc3311c174c995e4bab13755b498cb43dc
localrepo: introduce "checkoutgoing()" to extend outgoing revision check easily

diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -103,6 +103,7 @@
         try:
             _pushdiscovery(pushop)
             if _pushcheckoutgoing(pushop):
+                pushop.repo.checkoutgoing(pushop.remote, pushop.outgoing)
                 _pushchangeset(pushop)
             _pushcomputecommonheads(pushop)
             _pushsyncphase(pushop)
diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1677,6 +1677,15 @@
         """
         pass
 
+    def checkoutgoing(self, remote, outgoing):
+        """Extensions can override this function if additional checks have
+        to be performed on outgoing revisions before pushing, or call it
+        if they override push command.
+
+        'outgoing' argument is the result of 'discovery.findcommonoutgoing()'.
+        """
+        pass
+
     def push(self, remote, force=False, revs=None, newbranch=False):
         return exchange.push(self, remote, force, revs, newbranch)