Junio C Hamano <gitster@pobox.com> writes:

quoted text
> Yes, I am very well aware that somebody already mentioned "there
> is a window between the true checkout and permission tweaking".
> If you need to touch the core level in order to close that
> window, I am not interested.

Doing this atomically involves creating the file in question by
specifying the permissions on the creat system call already, and
possibly wrap seteuid calls and similar around it for getting the
right file/ownership.

However, it is not really necessary to do this atomically: instead one
can rather create the file using safe permissions (600) at first, then
do fchown and fchmod (or chown/chmod) at some point in time afterwards
as required.

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum
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