[PATCH 0/4] Pushing into a repository with alternates

Here is a re-rolled series of the topic we discussed earlier.

Junio C Hamano (4):
  is_directory(): a generic helper function
  receive-pack: make it a builtin
  push: prepare sender to receive extended ref information from the receiver
  push: receiver end advertises refs from alternate repositories

 Makefile                                 |    2 +-
 abspath.c                                |   13 ++++++++-
 builtin-clone.c                          |    9 +-----
 builtin-fetch-pack.c                     |    2 +-
 receive-pack.c => builtin-receive-pack.c |   44 +++++++++++++++++++++++++++--
 builtin-send-pack.c                      |   21 +++++++++++---
 builtin.h                                |    1 +
 cache.h                                  |    9 +++++-
 connect.c                                |   17 +++++++++++-
 daemon.c                                 |   10 ++-----
 git.c                                    |    1 +
 rerere.c                                 |    3 +-
 sha1_file.c                              |   13 +++++++-
 transport.c                              |    4 +-
 14 files changed, 115 insertions(+), 34 deletions(-)
 rename receive-pack.c => builtin-receive-pack.c (91%)