Re: [gentoo-dev] rfc: making sysvinit optional

[William Hubbs <williamh@gentoo.org>]

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I'm replying, because there is one more thing I want to add before I
head out.

On Wed, Jul 10, 2019 at 07:03:32PM -0500, William Hubbs wrote:
> On Wed, Jul 10, 2019 at 07:30:57PM -0400, Michael Orlitzky wrote:
> > On 7/10/19 7:16 PM, William Hubbs wrote:
> > > 3. add a sysvinit use flag to openrc, which will be off by default. When
> > > it is on, openrc will block sysvinit since it will provide /sbin/init
> > > and /sbin/shutdown.
> > > 
> > 
> > This logic, or maybe the name of the flag, sounds backwards to me. I
> > only get sysvinit when USE=sysvinit is NOT set?
> 
> If you don't set sys-apps/openrc[sysvinit], you would have /sbin/init
> and /sbin/shutdown as they are now, from sys-apps/sysvinit.
> 
> If you do set sys-apps/openrc[sysvinit], /sbin/init and /sbin/shutdown
> would become wrappers for  /sbin/openrc-init and /sbin/openrc-shutdown.
> 
> Actually, I'm thinking that the use flag can't happen until the next
> OpenRC release, because I need to set up openrc-shutdown so it can shut down
> a system that is booted with sysvinit first.
> 
> > 
> > 
> > 
> > > RDEPEND="
> > > 		kernel_linux? (
> > > 		|| (
> > > 		sys-apps/sysvinit

Since sysvinit is first in the rdepend it will be the first choice to be
installed. In other words, no systems would be affected unless they
forcibly unmerge sysvinit. The others below are alternatives.

> > > 			sys-apps/systemd
> > > 			sys-apps/openrc
> > > 			sys-process/runit
> > > 			virtual/daemontools

This one I need to look at, because I'm not actually sure if it provides
an init.

> > > 	)
> > 
> > Modulo my first comment, you'll want some USE flag (un)set for
> > sys-apps/openrc to ensure that /sbin/init is provided.
> 
> I am willing to be convinced, but I'm not sure all providers of a virtual
> are required to provide the same binaries. A couple of examples off the
> top of my head are virtual/editor, virtual/logger and virtual/mta.

William


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