Re: introducing curl-minimal and libcurl-minimal RPM packages

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On Thursday, March 17, 2016 07:12:01 AM Kamil Dudka wrote:
> On Wednesday, March 16, 2016 17:07:39 Dennis Gilmore wrote:
> > On Wednesday, March 16, 2016 09:52:36 PM Kamil Dudka wrote:
> > > On Wednesday, March 16, 2016 15:48:54 Dennis Gilmore wrote:
> > > > On Wednesday, March 16, 2016 9:39:33 PM CDT Kamil Dudka wrote:
> > > > > On Wednesday, March 16, 2016 16:19:23 Bill Nottingham wrote:
> > > > > > Kamil Dudka (kdudka@xxxxxxxxxx) said:
> > > > > > > Are you reading it from the specfile?
> > > > > > > 
> > > > > > > It is just an implementation detail of the packaging (the
> > > > > > > RemovePathPostfixes feature of rpm).  The string you mentioned
> > > > > > > neither
> > > > > > > appears in the SONAME, nor in any file installed by the RPMs in
> > > > > > > question.
> > > > > > 
> > > > > > ... which means if the SONAME is the same, you either are dealing
> > > > > > with
> > > > > 
> > > > > > Conflicts:
> > > > > Exactly.  libcurl conflicts with libcurl-minimal, which means that
> > > > > exactly
> > > > > one of them will be installed on any Fedora system at a time.  On a
> > > > > regular
> > > > > system (server, desktop, etc.) it will always be libcurl.
> > > > > 
> > > > > On the other hand, if you need to create a minimal installation of
> > > > > Fedora
> > > > > (e.g. a base image for Docker), you will pick libcurl-minimal
> > > > > instead
> > > > > of
> > > > > libcurl, to make the set of installed packages really minimal.
> > > > > 
> > > > > > , or relying on the behavior of ldconfig to figure out which
> > > > > > library you happen to get at a particular time.
> > > > > 
> > > > > ldconfig will always pick /usr/lib64/libcurl.so.4 because there can
> > > > > be
> > > > > only
> > > > > one file with that name installed at a time.
> > > > 
> > > > And how do you transition when you need to add the full featured
> > > > version?
> > > 
> > > # dnf install --allowerasing curl
> > 
> > And you are going to be able to do that in the tools taht build layered
> > images?
> 
> Sure.  I see no reason why it would not work (or cause any problems).
> 
> Kamil

You have more faith than me then. I would want to see it working first. 

Dennis

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