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Re: [scl.org] Removing 'scls' from %{_sysconfdir} and %{_localstatedir}?



On Thu, Feb 26, 2015 at 07:16:28PM +0100, Honza Horak wrote:
> On 02/26/2015 05:22 PM, Joe Orton wrote:
> >On Thu, Feb 26, 2015 at 01:02:36PM +0100, Honza Horak wrote:
> >>Latest scl-utils define the following paths if %{nfsmountable} macro is
> >>defined:
> >>
> >>   %{_sysconfdir}    expands to /etc/opt/<vendor>/scls/<sclname>
> >>   %{_localstatedir} expands to /var/opt/<vendor>/scls/<sclname>
> >>
> >>(see the 'scls' part) but the rest files don't use 'scls', e.g.:
> >>
> >>   %{_bindir}        expands to /opt/<vendor>/<sclname>
> >>
> >>(no 'scls' in the path).
> >...
> >>My opinion is we don't need this distinguishing at all.
> >>
> >>Software Collections are just a delivery mechanism, to place files into a
> >>unique structure, separated based on the *collection name*. If we don't need
> >>to separate SCLs by any 'scl' keyword on RPM packages names (i.e. we don't
> >>call collections with scl-colname, at least not now), we don't need to do it
> >>on filesystem level either.
> >
> >I agree.  Since the <vendor> will already own the namespace with their
> >portion of /{var,etc}/opt anyway, there is surely no great concern for
> >collisions; the onus will be on the vendor to ensure whatever name used
> >is unique.  SCLs are not special in this sense, as you say.
> 
> Since this topic is actually quite important for Env & Stacks working group
> in Fedora, I've hijacked most of the fedora env&stacks meeting [1] to
> discuss this topic today.
> 
> There were quite a few interesting notes mentioned and the voting showed the
> version with '/scls/' is the preferred way and it has some reasoning. So, it
> seems /opt/<vendor>/scls is the way to go in Fedora once SCLs get there.

Why is it even 'scls' and not 'scl'? We have everything prefixed with
'scl' so I don't know why this one is called 'scls'. Does any
explanation exist for this?

Brano

> 
> This doesn't seem the /scls must be hardcoded in the scl-utils, I'd rather
> see it as something the distro can change the same way as vendor is supposed
> to be changed. Keeping it the same across the distros may be beneficial, but
> doesn't need to be required, since we change vendor anyway across distros.
> 
> That means we'd just set %_scl_prefix to /opt/fedora/scls in fedora, while
> default could stay what it is in scl-utils (just removing the scls/
> hardcoded in the %{_sysconfdir} and similiar macros would be needed).
> 
> [1] http://meetbot.fedoraproject.org/fedora-meeting-2/2015-02-26/env-and-stacks.2015-02-26-13.02.html
> 
> 
> Honza
> 
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-- 
Branislav Blaskovic
QE BaseOS Daemons
#brno, #daemons, #urt, #qa


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