[HEADS-UP] systemd for F14 - the next steps

[Lennart Poettering]

On Thu, 22.07.10 12:06, Dave Airlie (airlied at redhat.com) wrote:

> 
> 
> > 
> > It is needed:
> > 
> > if [ $1 -eq 1 ] ; then
> >         # For new installations, hook unit file into the appropriate places via symlinks
> >         /usr/bin/systemd-install enable --realize=reload %{unit name}.service > /dev/null 2>&1 || :
> > else
> >         # For old installations, just reload the configuration, don't change symlinks
> >         /bin/bin/systemd-install realize --realize=reload %{unit name}.service > /dev/null 2>&1 || :
> > fi        
> 
> Wow thats pretty special... both an option called realize and a
> argument, that won't get confusing no matter how long it lives, also
> realize doesn't seem to be conveying a useful meaning, I'm a native
> speaker and I'm not sure what you actually mean by realize in this
> context.
> 
> I'm going with:
> 
> to make real; give reality to (a hope, fear, plan, etc.).
>  
> but its seems quite an abstract term to associate reality with an
> abstract computer object.

Well, I am not a native speaker. We were looking for a verb that
basically means "make this take effect immediately". 

i.e. the "enable"/"disable" commands makes some changes for the next
time they are looked at, and then adding --realize on top makes those
changes take effect immediately, i.e. so that the unit is start/stopped
according to those changes. We actually used "--start=" first (which
however is very confusing when you'd write "disable --start" to disable
something and then have it stop...) We then considered "--now", because
it is not a verb. But eventually we stuck with --realize. It's not
great, yes. But we couldnt think of anything better. Happy to take
suggestions. But no, --take-effect-immediately is not really an option.

Also, in the excerpt above this would actually suffice:

    /bin/bin/systemd-install realize %{unit name}.service > /dev/null 2>&1 || :

But then I couldn't have referred to the --realize=foo changing further
down in the mail, so I added that. Maybe I shouldn't have done that for
simplicity's sake.

Lennart

-- 
Lennart Poettering - Red Hat, Inc.