Eric Wong wrote:

Jonathan Nieder [off-list ref] wrote:

quoted

Why can't git use e.g. posix_spawn to avoid this?

posix_spawn does not support chdir, and it seems we run non-git
commands so no using "git -C" for those.

On the other hand, a number of the non-git commands we run are in a
shell.  At the cost of a wasted shell process, other commands can
be spawned using posix_spawn by passing the chosen directory and
command to

	sh -c 'cd "$1" && shift && exec "$@"' -

[...]

I posted some notes about it last year:

  https://public-inbox.org/git/20160629200142.GA17878@dcvr.yhbt.net/

Thanks for these notes.

Sincerely,
Jonathan