Thanks for answering

On Fri, Oct 26, 2012 at 9:08 PM, Jens Lehmann <jens.lehm...@web.de> wrote:
> Am 26.10.2012 16:07, schrieb Francis Moreau:
>> I'm trying to use the --submodule switch with git-diff but doesnt
>> understand the following behaviour:
>> $ git diff 2c9a257718d1803de720f95766ff256d33accad5 HEAD
>> diff --git a/configs b/configs
>> index 16c6a89..ce12289 160000
>> --- a/configs
>> +++ b/configs
>> @@ -1 +1 @@
>> -Subproject commit 16c6a89f245f0eed7fb0bce8e027c59fcf1d543e
>> +Subproject commit ce12289c5bfca7b2c423d9f1871c13ad1ba1dc32
>> but adding the --submodule option gives:
>> $ git diff --submodule=log 2c9a257718d1803de720f95766ff256d33accad5 HEAD
>> Submodule configs 16c6a89...ce12289 (commits not present)
>> Could anybody enlight me ?
> The output "Submodule configs 16c6a89...ce12289 (commits not present)"
> contains same SHA-1s, only in their abbreviated form. That is the same
> information you get without the --submodule option, but in shorter
> format: it says the submodule moved from 16c6a89 to ce12289 in the
> given commit range of the superproject (and the "..." part tells us it
> wasn't a fast-forward). The "(commits not present)" part indicates that
> even though git diff would have wanted to show you what happened in the
> submodule between 16c6a89 and ce12289 by displaying the first line of
> each commit message, it couldn't because these commit(s) are not present
> in the submodule repo. If you do a "git log --oneline 16c6a89...ce12289"
> inside the submodule you'll get an "unknown revision" error for the same
> reason.

Well, no the commits are present in the submodule, that's what I tried
to show with the first 'git-diff' command I did in my previous post
(without the --submodule switch).

And to check again, this is the result of git log:

  $ cd configs
  $ git log --oneline 16c6a89...ce12289
  ce12289 test 2


> Does that make it clearer?

Unforunately not really.

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