[PATCH v7 0/7] recursively grep across submodules

[Brandon Williams <bmwill@google.com>]

Changes in v7:
* Rebased on 'origin/bw/realpath-wo-chdir' in order to fix the race condition
  that occurs when verifying a submodule's gitdir.
* Reverted is_submodule_populated() to use resolve_gitdir() now that there is
  no race condition.
* Added !MINGW to a test in t7814 so that it won't run on windows.  This is due
  to testing if colons in filenames are still handled correctly, yet windows
  doesn't allow colons in filenames.

Brandon Williams (7):
  submodules: add helper to determine if a submodule is populated
  submodules: add helper to determine if a submodule is initialized
  submodules: load gitmodules file from commit sha1
  grep: add submodules as a grep source type
  grep: optionally recurse into submodules
  grep: enable recurse-submodules to work on <tree> objects
  grep: search history of moved submodules

 Documentation/git-grep.txt         |  14 ++
 builtin/grep.c                     | 386 ++++++++++++++++++++++++++++++++++---
 cache.h                            |   2 +
 config.c                           |   8 +-
 git.c                              |   2 +-
 grep.c                             |  16 +-
 grep.h                             |   1 +
 submodule-config.c                 |   6 +-
 submodule-config.h                 |   3 +
 submodule.c                        |  50 +++++
 submodule.h                        |   3 +
 t/t7814-grep-recurse-submodules.sh | 241 +++++++++++++++++++++++
 tree-walk.c                        |  28 +++
 13 files changed, 729 insertions(+), 31 deletions(-)
 create mode 100755 t/t7814-grep-recurse-submodules.sh

-- 
2.8.0.rc3.226.g39d4020