[PATCH v3] spec: don't touch existing nwfilters on update

[Nikolay Shirokovskiy]

Nwfilter can be edited by the user and we don't want to overwrite the editings.
Also the filters in %{datadir} does not have UUIDs and these are generated on
libvirtd start. Thus this patch also fixes regeneration of UUIDs on libvirtd
update.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy at virtuozzo.com>
Reviewed-by: Michal Privoznik <mprivozn at redhat.com>
---

It is a successor to PATCH v2[1].

Diff to v2:
- Misc changes according to Andrea's review

[1] PATCH v2
https://www.redhat.com/archives/libvir-list/2020-December/msg00399.html
 

 libvirt.spec.in | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/libvirt.spec.in b/libvirt.spec.in
index 880051b..f20a1c7 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1439,9 +1439,13 @@ fi
 rm -rf %{_localstatedir}/lib/rpm-state/libvirt || :
 
 %post daemon-config-nwfilter
-cp %{_datadir}/libvirt/nwfilter/*.xml %{_sysconfdir}/libvirt/nwfilter/
-# libvirt saves these files with mode 600
-chmod 600 %{_sysconfdir}/libvirt/nwfilter/*.xml
+for datadir_file in %{_datadir}/libvirt/nwfilter/*.xml; do
+  sysconfdir_file=%{_sysconfdir}/libvirt/nwfilter/$(basename "$datadir_file")
+  if [ ! -f "$sysconfdir_file" ]; then
+    # libvirt saves these files with mode 600
+    install -m 0600 "$datadir_file" "$sysconfdir_file"
+  fi
+done
 # Make sure libvirt picks up the new nwfilter defininitons
 mkdir -p %{_localstatedir}/lib/rpm-state/libvirt || :
 touch %{_localstatedir}/lib/rpm-state/libvirt/restart || :
-- 
1.8.3.1