submodule foreach <command-list> will execute the list of commands in

each currently checked out submodule directory. The list of commands

is arbitrary as long as it is acceptable to sh. The variables '$path'

and '$sha1' are availble to the command-list, defining the submodule

path relative to the superproject and the submodules's commitID as

recorded in the superproject (this may be different than HEAD in the

submodule).
This utility is inspired by a number of threads on the mailing list

looking for ways to better integrate submodules in a tree and work

with them as a unit. This could include fetching a new branch in each

from a given source, or possibly checking out a given named branch in

each. Currently, there is no consensus as to what additional commands

should be implemented in the porcelain, requiring all users whose needs

exceed that of git-submodule to do their own scripting. The foreach

command is intended to support such scripting, and in particular does

no error checking and produces no output, thus allowing end users

complete control over any information printed out and over what

constitutes an error.
Signed-off-by: Mark Levedahl <mlevedahl@gmail.com>

---

 Documentation/git-submodule.txt |   12 ++++++++++++

 git-submodule.sh                |   22 ++++++++++++++++++++--

 2 files changed, 32 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt

index bf33b0c..5b52f35 100644

--- a/Documentation/git-submodule.txt

+++ b/Documentation/git-submodule.txt

@@ -14,6 +14,7 @@ SYNOPSIS

 'git submodule' [--quiet] init [--] [<path>...]

 'git submodule' [--quiet] update [--init] [--] [<path>...]

 'git submodule' [--quiet] summary [--summary-limit <n>] [commit] [--] [<path>...]

+'git submodule' foreach <command-list>
 DESCRIPTION

@@ -123,6 +124,17 @@ summary::

 	in the submodule between the given super project commit and the

 	index or working tree (switched by --cached) are...
[ message continues ]

Hi,
I was about to send an equivalent patch, but you beat me to it. Yours is

shorter and more elegant as well, so thanks for saving me the

embarrasment ;)
So, FWIW:
Liked-by: Johan Herland <johan@herland.net>
--

Johan Herland, <johan@herland.net>

www.herland.net

--