[PATCH 07 of 14 V3] clone: allow bundle2's stream clone with 'server.disablefullbundle'

[Boris Feld]

# HG changeset patch
# User Boris Feld <boris.feld at octobus.net>
# Date 1516203512 -3600
#      Wed Jan 17 16:38:32 2018 +0100
# Node ID e0d5763061cc551ea34f748631fc9985836885a3
# Parent  752abe0317e37feb6d837b2b17e0d63fa10fd63d
# EXP-Topic b2-stream
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r e0d5763061cc
clone: allow bundle2's stream clone with 'server.disablefullbundle'

The previous check was a bit too strict and would not recognize a get bundle
not requesting changegroup.

diff --git a/mercurial/wireproto.py b/mercurial/wireproto.py
--- a/mercurial/wireproto.py
+++ b/mercurial/wireproto.py
@@ -855,10 +855,11 @@ def getbundle(repo, proto, others):
         if repo.ui.configbool('server', 'disablefullbundle'):
             # Check to see if this is a full clone.
             clheads = set(repo.changelog.heads())
+            changegroup = opts.get('cg', True)
             heads = set(opts.get('heads', set()))
             common = set(opts.get('common', set()))
             common.discard(nullid)
-            if not common and clheads == heads:
+            if changegroup and not common and clheads == heads:
                 raise error.Abort(
                     _('server has pull-based clones disabled'),
                     hint=_('remove --pull if specified or upgrade Mercurial'))