Re: [PATCH 2/2] builtin/clone: allow remote helpers to detect repo

>> > +	 * Git commands. To do so, we:
>> > +	 *
>> > +	 *   - Create an invalid HEAD ref pointing at "refs/heads/.invalid".
>> > +	 *
>> > +	 *   - Create the "refs/" directory.
>> > +	 *
>> > +	 *   - Set up the ref storage format and repository version as
>> > +	 *     required.
>> 
>> "as required" by whom and in what way?  
>> 
>> "The code to recognize a repository requires them to be set already,
>> but they do not have to be the real value---we just assign random
>> valid values for now, let remote helper do its work and then set the
>> real values after they are done" would be a plausible interpretation
>> of the above.  Is that what is going on?
>
> Partially. While we cannot yet determine the object format, we do know
> the ref storage format as it is specified by the caller when invoking
> git-clone(1) with the `--ref-format=` switch, not by the remote repo.
> In that case, we'd have to set up the ref format accordingly and also
> set the repository version to "1".