Fix zypper conflict about directory -> symlink workaround (bsc#1244458)

kernel-firmware-nvidia.spec

@@ -169,41 +169,28 @@ scripts/install-licenses.sh nvidia %{buildroot}%{_licensedir}/%{name}
 install -c -D -m 0644 WHENCE %{buildroot}%{_licensedir}/%{name}/WHENCE
 install -c -D -m 0644 README.md %{buildroot}%{_docdir}/%{name}/README.md
 
-%pre
-# ugly workaround for changing nvidia/ad103 & co to symlinks (bsc#1243843)
-for d in ad103 ad104 ad106 ad107; do
-  if [ ! -L %{_firmwaredir}/nvidia/$d ]; then
-    if [ -d %{_firmwaredir}/nvidia/$d ]; then
-      mv %{_firmwaredir}/nvidia/$d %{_firmwaredir}/nvidia/$d.xxxold
-    fi
-  fi
-done
-
-%post
-# ugly workaround (bsc#1243843)
-if [ -d %{_firmwaredir}/nvidia/ad103.xxxold ]; then
-  for d in ad103 ad104 ad106 ad107; do
-    mv %{_firmwaredir}/nvidia/$d %{_firmwaredir}/nvidia/$d.xxxnew
-    if [ -d %{_firmwaredir}/nvidia/$d.xxxold ]; then
-      mv %{_firmwaredir}/nvidia/$d.xxxold %{_firmwaredir}/nvidia/$d
-    fi
-  done
+%pretrans -p <lua>
+if not macros then
+  fwdir = "/lib/firmware"
 else
-  %{?regenerate_initrd_post}
-fi
-
-%postun
-%{?regenerate_initrd_post}
-
-%posttrans
-# ugly workaround (bsc#1243843)
-for d in ad103 ad104 ad106 ad107; do
-  if [ -L %{_firmwaredir}/nvidia/$d.xxxnew ]; then
-    rm -rf %{_firmwaredir}/nvidia/$d
-    mv %{_firmwaredir}/nvidia/$d.xxxnew %{_firmwaredir}/nvidia/$d
-  fi
-done
-%{?regenerate_initrd_posttrans}
+  fwdir = macros._firmwaredir
+end
+paths = {"ad103", "ad104", "ad106", "ad107"}
+for i = 1, 4 do
+  path = fwdir .. "/nvidia/" .. paths[i]
+  st = posix.stat(path)
+  if st and st.type == "directory" then
+    status = os.rename(path, path .. ".rpmmoved")
+    if not status then
+      suffix = 0
+      while not status do
+        suffix = suffix + 1
+        status = os.rename(path .. ".rpmmoved", path .. ".rpmmoved." .. suffix)
+      end
+      os.rename(path, path .. ".rpmmoved")
+    end
+  end
+end
 
 %files
 %doc %{_docdir}/%{name}