Re: determine package arch without/before building package?
On Jul 11, 2012, at 12:13 PM, Tim Mooney wrote:
Given a spec file foo.spec, is there a way use rpmbuild or rpm to
determine what the package architecture will be without (or before)
actually building the package?
I know I could use sed or grep on the spec file looking for BuildArch,
but I'm wondering if there's a way to essentially run the equivalent of
a macro --eval query against a spec file.
The recommended way is this
./rpm -q --qf '%{arch}\n' --specsrpm rpm.spec
x86_64
Yes: SRPM's have a RPMTAG_ARCH associated.
And yes sed/grep/awk can all be used if the *.spec file isn't
all b00gered up with macro magic.
The functionality is kinda tweaky and backward because ultimately the
arch is determined by configuration and how rpm is invoked which
are all mostly known a priori (noarch being the important exception,
cross-building and multilib builds have never been directly supported
by rpmbuild itself meaningfully).
(aside)
It wouldn't be too hard to add some sugary automatic syntax to all of the above
to hide the gory details. All that stops the implementation is consensus on the
option
(technically the popt alias) name to be used and supported.
I'm not going to hold my breath waiting for consensus to appear wrto rpmbuild
however.
hth
73 de Jeff
__
RPM Package Managerhttp://rpm5.org
User Communication List rpm-users@rpm5.org
Re: determine package arch without/before building package?
In regard to: Re: determine package arch without/before building package?,...:
Given a spec file foo.spec, is there a way use rpmbuild or rpm to
determine what the package architecture will be without (or before)
actually building the package?
I know I could use sed or grep on the spec file looking for BuildArch,
but I'm wondering if there's a way to essentially run the equivalent of
a macro --eval query against a spec file.
The recommended way is this
./rpm -q --qf '%{arch}\n' --specsrpm rpm.spec
x86_64
Thanks Jeff, that worked perfectly, at least with RPM 5.x.
Tim
--
Tim Mooney tim.moo...@ndsu.edu
Enterprise Computing Infrastructure 701-231-1076 (Voice)
Room 242-J6, IACC Building 701-231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164
__
RPM Package Managerhttp://rpm5.org
User Communication List rpm-users@rpm5.org
Re: determine package arch without/before building package?
On Jul 11, 2012, at 4:54 PM, Tim Mooney wrote:
In regard to: Re: determine package arch without/before building package?,...:
Given a spec file foo.spec, is there a way use rpmbuild or rpm to
determine what the package architecture will be without (or before)
actually building the package?
I know I could use sed or grep on the spec file looking for BuildArch,
but I'm wondering if there's a way to essentially run the equivalent of
a macro --eval query against a spec file.
The recommended way is this
./rpm -q --qf '%{arch}\n' --specsrpm rpm.spec
x86_64
Thanks Jeff, that worked perfectly, at least with RPM 5.x.
Yes --specsrpm is unique to rpm5 (SRPM, not binary, headers are queried).
But also works with --specfile everywhere, just watch out for
1) you will get multiple replies, one for each binary subpkg (head -n 1
solves instantly)
2) all modern rpm permits noarch subpkgs, older (like 3y old) legacy
rpm does not.
73 de Jeff
__
RPM Package Managerhttp://rpm5.org
User Communication List rpm-users@rpm5.org
