About rpm --querytags option

[Michael Schwendt]

On 07/01/2008, Robert Wuest <rwuestfc at wuest.org> wrote:
> This brings to mind a problem I had to deal with not too long ago.
>
> How does one find the spec file a package is built from?
>
> Is there a more reliable / faster way than something like this?
>
> rpm -qlp package.src.rpm | egrep '\.spec$'

Faster? No.

More reliable? Yes, but only with more complex code. Although it might
be that nowadays no src.rpm contains more than one spec file anymore,
and the complexity would not be worth the effort. In theory, you could
verify that no Source/Patch file ends with ".spec". The spec filename
must not be found in the arrays "[%{source}\n]" and "[%{patch}\n]",
but is included in "[%{filenames}\n]" (which is the same as the -qlp
output). Example:

$ for f in $(rpm -qp sylpheed-2.3.1-0.1.3.EL.src.rpm --qf
"[%{patch}\n]") ; do echo $f ; done
sylpheed-2.3.1-CVE-2007-2958.patch
sylpheed-2.3.1-escaped-quotes.patch
sylpheed-2.3.1-pgpmime-signed-compose.patch
sylpheed-2.3.1-apop-cve-2007-1558.patch
sylpheed-2.2.5-prefs_common.patch
sylpheed-2.3.1-certsdir-rhel.patch
sylpheed-2.2.7-desktop.patch
sylpheed-2.2.3-defs.h.patch

$ for f in $(rpm -qp sylpheed-2.3.1-0.1.3.EL.src.rpm --qf
"[%{source}\n]") ; do echo $f ; done
sylpheed.1
sylpheed-2.3.1.tar.bz2

But:

$ for f in $(rpm -qp sylpheed-2.3.1-0.1.3.EL.src.rpm --qf
"[%{filenames}\n]"); do echo $f ; done
sylpheed-2.2.3-defs.h.patch
sylpheed-2.2.5-prefs_common.patch
sylpheed-2.2.7-desktop.patch
sylpheed-2.3.1-CVE-2007-2958.patch
sylpheed-2.3.1-apop-cve-2007-1558.patch
sylpheed-2.3.1-certsdir-rhel.patch
sylpheed-2.3.1-escaped-quotes.patch
sylpheed-2.3.1-pgpmime-signed-compose.patch
sylpheed-2.3.1.tar.bz2
sylpheed.1
sylpheed.spec