clone: explicitly push bookmarks when cloning from local to remote

We need to explicitly push all local bookmarks when doing the clone from a local
repo to a remote one through ssh. This will let us remove the manual export of
bookmarks in clone and rely on the official exchange in push and pull instead.

mercurial/hg.py

@@ -413,7 +413,8 b' def clone(ui, peeropts, source, dest=Non'
             if destpeer.local():
                 destpeer.local().clone(srcpeer, heads=revs, stream=stream)
             elif srcrepo:
-                exchange.push(srcrepo, destpeer, revs=revs)
+                exchange.push(srcrepo, destpeer, revs=revs,
+                              bookmarks=srcrepo._bookmarks.keys())
             else:
                 raise util.Abort(_("clone from remote to remote not supported"))
 

tests/test-init.t

@@ -220,5 +220,6 b' clone bookmarks'
   remote: adding manifests
   remote: adding file changes
   remote: added 1 changesets with 1 changes to 1 files
+  exporting bookmark test
   $ hg -R remote-bookmarks bookmarks
      test                      0:08b9e9f63b32