I've got a project that needs to have files in local working directories readable only by people in a particular unix group (why is a long story).

Basically I need to insure that files are always chgrp'd to this particular
group and chmod'd to have perms of 660 (or something like that).

However, p4 seems to always set files to the user's umask and the default group.
It ignores what I set the file to and reverts it to the environment default.

Is there any way to control this other than by changing the user's environment
or hacking up a wrapper around p4?

This is using Linux and Solaris, and I'm running p4 2003.1.