I have a top-level project with children modules. Three of the children
modules create rpms, so I want the top-level project to create an empty rpm
with 'requires' for these three rpms. The relevant part of my pom.xml is...
<build><plugins><plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>rpm-maven-plugin</artifactId>
<configuration>
<name>eso</name>
<requires>
<require>eso-webapp</require>
<require>eso-core</require>
<require>eso-dbtools</require>
</requires>
<mappings>
</mappings>
</configuration>
</plugin></plugins></build>
Other settings for the plugin are in <pluginManagement>.
I tried creating this without the <mappings> section, but it complained that
<mappings> didn't exist, so I created the empty <mappings>, but now rpmbuild
dies because the plugin-generated spec file contains this...
%install
if [ -e $RPM_BUILD_ROOT ];
then
mv /home/lezz.giles/osa/target/rpm/eso/tmp-buildroot/* $RPM_BUILD_ROOT
else
mv /home/lezz.giles/osa/target/rpm/eso/tmp-buildroot $RPM_BUILD_ROOT
fi
...which is a problem because tmp-buildroot contains no files, and so (long
story short) tmp-buildroot/* upsets shell and causes it to die.
One solution is to check explicitly for no <mapping> elements and to generate
an appropriate %install section.
I can't believe I'm the first maven rpm user to want to do this, so if there is
a proper way to get an empty rpm that would be good to know. I think my
workaround in the short term will be to have a dummy file installed by the rpm,
just to keep it happy.
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