Andrew Keller <and...@kellerfarm.com> writes:
> On Mar 7, 2014, at 7:50 PM, Henri GEIST wrote:
>> To give one of my project to someone else I have copied it on a USB key.
>> By a simple drag and drop with the mouse.
>> And I am quite sure I am not alone doing this way.
>> I have done those kind of things lot of time without any problem.
>> But that day 'the_project' happened to be a submodule cloned by
>> 'git submodule update' then on the USB key the $GIT_DIR of 'the_project'
>> was missing.
>> If 'man git-submodule' have made me aware of the particularities of
>> clone I had write in a terminal:
>> git clone the_project /media/usb/the_project
>> Or at least I had understand what happened quicker.
>> I have nothing against also adding something in repository-layout but I am
>> pretty sure normal users never read repository-layout as it is not a command
>> they use. And it is not mentioned in most tutorials.
> How about something like this:
> "The git directory of a submodule lives inside the git directory of the
> parent repository instead of within the working directory."
> I'm not sure where to put it, though.
This is not limited to submodules. There are multiple lower-level
mechanisms for a $path/.git to borrow the repository data from
elsewhere outside of $path and a cloned submodule uses only one of
them. For any such $path, "cp -R $path $otherplace" will result in
an "$otherplace" that does not work as a Git repository in exactly
the same way, whether it happens to be a submodule checkout or not.
That is why I suggested to enhance description on a more general
part of the documentation that covers what a Git repository is.
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