Re: [PATCH 3/8] daemon: recognize hidden request arguments

> On Wed, 13 Sep 2017 14:54:43 -0700
> Brandon Williams <bmwill@google.com> wrote:
> 
> > A normal request to git-daemon is structured as
> > "command path/to/repo\0host=..\0" and due to a bug in an old version of
> > git-daemon 73bb33a94 (daemon: Strictly parse the "extra arg" part of the
> > command, 2009-06-04) we aren't able to place any extra args (separated
> > by NULs) besides the host.
> > 
> > In order to get around this limitation teach git-daemon to recognize
> > additional request arguments hidden behind a second NUL byte.  Requests
> > can then be structured like:
> > "command path/to/repo\0host=..\0\0version=1\0key=value\0".  git-daemon
> > can then parse out the extra arguments and set 'GIT_PROTOCOL'
> > accordingly.
> 
> A test in this patch (if possible) would be nice, but it is probably
> clearer to test this when one of the commands (e.g. upload-pack) is
> done. Could a test be added to the next patch to verify (using
> GIT_TRACE_PACKET, maybe) that the expected strings are sent? Then
> mention in this commit message that this will be tested in the next
> patch too.