[Rpm-maint] rpm feature

JD jd1008 at gmail.com
Thu Jun 17 15:27:23 UTC 2010



On 06/17/2010 12:50 AM, Panu Matilainen wrote:
> On Wed, 16 Jun 2010, seth vidal wrote:
>
>> On Wed, 2010-06-16 at 09:44 -0400, Adam Jackson wrote:
>>> On Wed, 2010-06-16 at 08:53 -0400, seth vidal wrote:
>>>> On Wed, 2010-06-16 at 00:30 -0700, JD wrote:
>>>>> Greetings all,
>>>>> Is there a way to query the database to list the packages
>>>>> that depend on a given package?
>>>>> I checked the man page, and I do  not see such an option.
>>>>> I see the option --requires, which is great - but would like the
>>>>> converse of --requires,  such as: --required_by
>>>>
>>>> rpm -q --whatrequires pkgname will tell you what specifically requires
>>>> that pkg name - but not all the things that pkg provides.
>>>
>>> For that, you would do:
>>>
>>> % rpm --quiet -q --whatrequires $(rpm -q --provides pkgname) | sort -u
>>>
>>> The uniquifying step being because rpm will print the list of consumers
>>> for _each_ thing provided by pkgname.
>>
>> but you'll need to do every file in the pkg, too.
>>
>> b/c of file-requires.
>
> One possibility is "abusing" --test with erasure, eg:
> $ rpm -e --test <pkg>
>
> To get just the depending package names something like this works:
> $ rpm -e --test <pkg> 2>&1 | tail -n +2 |awk '{print $NF'}
>
>     - Panu -
Yes - that works nicely
rpm -e --test libguestfs 2>&1 | tail -n +2 |awk '{print $NF'}
libguestfs-java-1:1.2.9-2.fc13.i686
ocaml-libguestfs-1:1.2.9-2.fc13.i686
perl-libguestfs-1:1.2.9-2.fc13.i686
guestfish-1:1.2.9-2.fc13.i686
python-libguestfs-1:1.2.9-2.fc13.i686
ruby-libguestfs-1:1.2.9-2.fc13.i686
libguestfs-java-1:1.2.9-2.fc13.i686
ocaml-libguestfs-1:1.2.9-2.fc13.i686
perl-libguestfs-1:1.2.9-2.fc13.i686
guestfish-1:1.2.9-2.fc13.i686
libguestfs-tools-1:1.2.9-2.fc13.i686
libguestfs-javadoc-1:1.2.9-2.fc13.i686
libguestfs-java-devel-1:1.2.9-2.fc13.i686
python-libguestfs-1:1.2.9-2.fc13.i686
ruby-libguestfs-1:1.2.9-2.fc13.i686

But why is the name slighly mangled with the insertion of 1:
into the name? What's the usefulness of that?



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