Re: [PATCH 2/4] reftable/stack: register new tables as tempfiles

[Junio C Hamano <gitster@pobox.com>]

Patrick Steinhardt <ps@pks.im> writes:

>> Since the tempfile is now being created through the tempfile API, I
>> think the file mode can be set directly through `mks_tempfile_m()`
>> instead of creating the tempfile and then using chmod. Just something I
>> thought to mention.
>
> Unfortunately not. The problem is that `mks_tempfile_m()` will munge
> passed-in permissions via "core.sharedRepository", but we already pre
> calculated the target mode in `config.default_permissions`. Thus, the
> result would have wrong permissions if we used `mks_tempfile_m()`.

I somehow found that default_permissions thing always disturbing.

Even if we keep a separate mechanism for determining the file
permission (perhaps in order to give ourselves a better separation
as "an independent library" from the rest of Git), shouldn't the
permission setting that is computed by the mechanism and stored in
config.default_permissions be consistent with the permission the
rest of git computes based on core.sharedRepository?