Re: [PATCH v4 1/2] for-each-repo: new command used for multi-repo operations

> On Sun, Jan 27, 2013 at 11:04:08AM -0800, Junio C Hamano wrote:
>> One more thing that nobody brought up during the previous reviews is
>> if we want to support subset of repositories by allowing the
>> standard pathspec match mechanism.  For example,
>> 
>> 	git for-each-repo -d git diff --name-only -- foo/ bar/b\*z
>> 
>> might be a way to ask "please find repositories match the given
>> pathspecs (i.e. foo/ bar/b\*z) and run the command in the ones that
>> are dirty".  We would need to think about how to mark the end of the
>> command though---we could borrow \; from find(1), even though find
>> is not the best example of the UI design.  I.e.
>> 
>> 	git for-each-repo -d git diff --name-only \; [--] foo/ bar/b\*z
>> 
>> with or without "--".
>
> Would it be better to make this a (multi-valued) option?
>
>     git for-each-repo -d --filter=foo/ --filter=bar/b\*z git diff --name-only

>> Oh, that reminds me of another thing.  Perhaps we would want to
>> export the (relative) path to the found repository in some way to
>> allow the commands to do this kind of thing in the first place?
>> "submodule foreach" does this with $path, I think.
>
> I think $path is the only variable exported by "submodule foreach" which
> is applicable here, but it doesn't work on Windows, where environment
> variables are case-insensitive.
>
> Commit 64394e3 (git-submodule.sh: Don't use $path variable in
> eval_gettext string) changed "submodule foreach" to use $sm_path
> internally although I notice that the documentation still uses $path.
>
> Perhaps $repo_path in this case?