bundle: encapsulate all bundle streams in unbundle class

mercurial/localrepo.py

@@ -1543,7 +1543,7 b' class localrepository(repo.repository):'
             if msng_cl_lst:
                 self.hook('outgoing', node=hex(msng_cl_lst[0]), source=source)
 
-        return util.chunkbuffer(gengroup())
+        return changegroup.unbundle10(util.chunkbuffer(gengroup()), 'UN')
 
     def changegroup(self, basenodes, source):
         # to avoid a race we use changegroupsubset() (issue1320)
@@ -1621,7 +1621,7 b' class localrepository(repo.repository):'
             if nodes:
                 self.hook('outgoing', node=hex(nodes[0]), source=source)
 
-        return util.chunkbuffer(gengroup())
+        return changegroup.unbundle10(util.chunkbuffer(gengroup()), 'UN')
 
     def addchangegroup(self, source, srctype, url, emptyok=False, lock=None):
         """Add the changegroup returned by source.read() to this repo.
@@ -1644,9 +1644,6 b' class localrepository(repo.repository):'
         if not source:
             return 0
 
-        if not hasattr(source, 'chunk'):
-            source = changegroup.unbundle10(source, 'UN')
-
         self.hook('prechangegroup', throw=True, source=srctype, url=url)
 
         changesets = files = revisions = 0

mercurial/sshserver.py

@@ -6,7 +6,7 b''
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-import util, hook, wireproto
+import util, hook, wireproto, changegroup
 import os, sys
 
 class sshserver(object):
@@ -130,7 +130,8 b' class sshserver(object):'
             return
 
         self.sendresponse("")
-        r = self.repo.addchangegroup(self.fin, 'serve', self._client(),
+        cg = changegroup.unbundle10(self.fin, "UN")
+        r = self.repo.addchangegroup(cg, 'serve', self._client(),
                                      lock=self.lock)
         return str(r)
 

mercurial/wireproto.py

@@ -102,14 +102,15 b' class wirerepository(repo.repository):'
     def changegroup(self, nodes, kind):
         n = encodelist(nodes)
         f = self._callstream("changegroup", roots=n)
-        return self._decompress(f)
+        return changegroupmod.unbundle10(self._decompress(f), 'UN')
 
     def changegroupsubset(self, bases, heads, kind):
         self.requirecap('changegroupsubset', _('look up remote changes'))
         bases = encodelist(bases)
         heads = encodelist(heads)
-        return self._decompress(self._callstream("changegroupsubset",
-                                                 bases=bases, heads=heads))
+        f = self._callstream("changegroupsubset",
+                             bases=bases, heads=heads)
+        return changegroupmod.unbundle10(self._decompress(f), 'UN')
 
     def unbundle(self, cg, heads, source):
         '''Send cg (a readable file-like object representing the