Unpacking SRPMs

Daniel P. Berrange berrange at redhat.com
Fri May 17 14:46:26 UTC 2013

On Fri, May 17, 2013 at 04:37:13PM +0200, Florian Weimer wrote:
> I'd like some scriptable way to unpack SRPMs up and including to the
> %prep stage.  Ideally, the results would end up in a directory I
> specify, and intermediate directories which only contain a single
> subdirectory are skipped.  (The eventual goal is to run two such
> directory tress through diff -uraN, and I want to avoid spurious
> differences due to an update from foo-1.2 to foo-1.3.)
> I've already learned the hard way that I need to use something like
> mock because some %prep script assume that build requires are
> installed.  But mock does not appear to support an option to stop
> after the %prep stage.

I guess you were using the --rebuild arg to mock ?  Can you do
something like this where you invoke rpmbuild explicitly with
the args you need to just run upto %prep:

   mock --init
   mock --installdeps  /path/to/srpm
   mock --copyin /path/to/srpm /srpm
   mock --shell /usr/bin/rpmbuild -bp /srpm

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