On Fri, 29 Dec 2017 11:29:00 +0000 Niels Thykier <ni...@thykier.net> wrote: > Here is an initial draft for how I think it could look. > > Review welcome. [...]
> +The `gain root command` is passed to the build script via the > +``DPKG_GAIN_ROOT_CMD`` environment variable. It is space separated > +list with the first word being the command (which should available be > +in PATH) and additional words being arguments. The `gain root > +command` may not be used via a shell and accordingly it must not rely > +on shell features. > + > +The `gain root command` must not prompt or require human interaction > +(as the build script itself must not require interaction). > +Furthermore, it must be possible to preprend the command to an > +existing command without having to alter or quote the command being > +invoked. > + > +The following are examples of valid defitions root commands (in the sh > +syntax) provided the tools are available and properly configured:: > + > + # Command "sudo", with arguments "-nE" and "--" > + export DPKG_GAIN_ROOT_CMD='sudo -nE --' > + # Command "fakeroot" with the single argument "--" > + export DPKG_GAIN_ROOT_CMD='fakeroot --' You use sudo with -E here to preserve the environment. If that's a requirement, then the preceding paragraph should explicitly say something like "the command must preserve all environment variables, unmodified".
