[PATCH 0/3] Implement 'git archive --submodules'

[Lars Hjemli <hjemli@gmail.com>]

This series teaches read_tree_recursive() how to traverse into gitlinked
repositories by automatically adding submodule object databases as
alternates during traversal. It is still perfectly legal for a submodule
not to be checked out, in which case the submodule will be ignored.

On top of this, the implementation of 'git archive --submodules' simply
activates the new feature in read_tree_recursive().

Lars Hjemli (3):
  sha1_file: add function to insert alternate object db
  Teach read_tree_recursive() how to traverse into submodules
  git-archive: add support for --submodules

 Documentation/git-archive.txt |    7 +++-
 archive.c                     |    4 ++
 cache.h                       |    3 ++
 environment.c                 |   12 ++++++
 sha1_file.c                   |    5 +++
 t/t5001-archive-submodules.sh |   78 +++++++++++++++++++++++++++++++++++++++
 tree.c                        |   80 +++++++++++++++++++++++++++++++++++++++++
 7 files changed, 187 insertions(+), 2 deletions(-)
 create mode 100755 t/t5001-archive-submodules.sh