spec: Avoid RPM verification errors on nwfilter XMLs

/etc/libvirt/nwfilter/*.xml files are installed with no UUID, which
means libvirtd will automatically alter all of them once it starts. Thus
RPM verification will always fail on them. Let's use a trick similar to
the default network XML and store nwfilter XMLs in /usr/share. They will
be copied into /etc in %post. Additionally the /etc files are marked as
%ghost so that they are uninstalled if the RPM package is removed.

Note that the %post script overwrites existing files with new ones on
upgrade, which is what has always been happening.

https://bugzilla.redhat.com/show_bug.cgi?id=1431581
https://bugzilla.redhat.com/show_bug.cgi?id=1378774

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>

libvirt.spec.in

@@ -1360,6 +1360,13 @@ cp $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/default.xml \
    $RPM_BUILD_ROOT%{_datadir}/libvirt/networks/default.xml
 rm -f $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/default.xml
 rm -f $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/qemu/networks/autostart/default.xml
+
+# nwfilter files are installed in /usr/share/libvirt and copied to /etc in %post
+# to avoid verification errors on changed files in /etc
+install -d -m 0755 $RPM_BUILD_ROOT%{_datadir}/libvirt/nwfilter/
+cp -a $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/nwfilter/*.xml \
+    $RPM_BUILD_ROOT%{_datadir}/libvirt/nwfilter/
+
 # Strip auto-generated UUID - we need it generated per-install
 sed -i -e "/<uuid>/d" $RPM_BUILD_ROOT%{_datadir}/libvirt/networks/default.xml
 %if ! %{with_qemu}
@@ -1586,6 +1593,17 @@ if test $1 -eq 1 && test ! -f %{_sysconfdir}/libvirt/qemu/networks/default.xml ;
 
 fi
 
+
+%post daemon-config-nwfilter
+cp %{_datadir}/libvirt/nwfilter/*.xml %{_sysconfdir}/libvirt/nwfilter/
+# Make sure libvirt picks up the new nwfilter defininitons
+%if %{with_systemd}
+    /bin/systemctl try-restart libvirtd.service >/dev/null 2>&1 ||:
+%else
+    /sbin/service libvirtd condrestart > /dev/null 2>&1 || :
+%endif
+
+
 %if %{with_systemd}
 %triggerun -- libvirt < 0.9.4
 %{_bindir}/systemd-sysv-convert --save libvirtd >/dev/null 2>&1 ||:
@@ -1767,7 +1785,9 @@ exit 0
 %{_datadir}/libvirt/networks/default.xml
 
 %files daemon-config-nwfilter
-%{_sysconfdir}/libvirt/nwfilter/*.xml
+%dir %{_datadir}/libvirt/nwfilter/
+%{_datadir}/libvirt/nwfilter/*.xml
+%ghost %{_sysconfdir}/libvirt/nwfilter/*.xml
 
 %files daemon-driver-interface
 %{_libdir}/%{name}/connection-driver/libvirt_driver_interface.so