[PATCHv2 0/8] A reroll of sb/submodule-blanket-recursive

v2:
* A reroll of sb/submodule-blanket-recursive.
* This requires ab/grep-preparatory-cleanup 
* It changed a lot from v1, as in v1 the tests did not work,
  hence the code was broken. Now it actually works.
* it also includes grep, fetch, push in addition to plain working tree
  manipulators.

Thanks, Stefan

Stefan Beller (8):
  submodule recursing: do not write a config variable twice
  submodule test invocation: only pass additional arguments
  reset/checkout/read-tree: unify config callback for submodule
    recursion
  submodule loading: separate code path for .gitmodules and config
    overlay
  Introduce 'submodule.recurse' option for worktree manipulators
  builtin/grep.c: respect 'submodule.recurse' option
  builtin/push.c: respect 'submodule.recurse' option
  builtin/fetch.c: respect 'submodule.recurse' option

 Documentation/config.txt           |  5 +++
 builtin/checkout.c                 | 31 ++----------------
 builtin/fetch.c                    |  7 +++++
 builtin/grep.c                     |  3 ++
 builtin/push.c                     |  4 +++
 builtin/read-tree.c                | 32 ++++++-------------
 builtin/reset.c                    | 39 +++++++----------------
 submodule.c                        | 64 +++++++++++++++++++++++++++++++++-----
 submodule.h                        |  7 ++++-
 t/lib-submodule-update.sh          | 22 ++++++++++---
 t/t1013-read-tree-submodule.sh     |  4 +--
 t/t2013-checkout-submodule.sh      |  4 +--
 t/t5526-fetch-submodules.sh        | 10 ++++++
 t/t5531-deep-submodule-push.sh     | 21 +++++++++++++
 t/t7112-reset-submodule.sh         |  4 +--
 t/t7814-grep-recurse-submodules.sh | 18 +++++++++++
 16 files changed, 178 insertions(+), 97 deletions(-)