fix triggers for presets, run only on services that were disabled - u…

…se magic rpm.next_file()

triggers.systemd

@@ -148,31 +148,37 @@ end
 -- as part of the installation of RPM files
 local systemctl = "/bin/systemctl"
 local unitdir = "/lib/systemd/system/"
-local path = "/lib/systemd/system-preset/"
-local pfiles = assert(io.popen('/bin/ls -1 ' ..path.. "*.preset")):lines()
-presets = {}
-
-if pfiles ~= nil then
-    for file in pfiles do
-        for line in assert(io.lines(file)) do
+local rpmfiles = rpm.next_file()
+local presets = {}
+
+if rpmfiles ~= nil then
+    for kfile,vfile in pairs(rpmfiles) do
+        local preset = vfile:match("^/lib/systemd/system%-preset/.*.preset$")
+        if preset ~= nil then
+        local f = assert(io.open(preset))
+        while true do
+            local line = f:read()
             if line == nil then
                 break
             end
-
             local cmd, arg = line:match("^([^ \t]+)[ \t]+([^\n \t]+)")
                 if (cmd == "enable" or cmd == "disable") and string.match(arg, "%*") ~= "*"  then
                     presets[#presets + 1] = arg:match("^%s*(.+)%s*$")
                 end
-            end
-            io.close()
         end
+        f:close()
     end
+    end
+end
 
 if posix.access(systemctl, "x") then
-    for key,unit in pairs(presets) do
+    for kunit,unit in pairs(presets) do
         if posix.stat(unitdir ..unit) then
-            print("Executing systemd preset on: " ..unit)
-            os.execute(systemctl .." preset -q --now " .. unit)
+            local status=io.popen('systemctl is-enabled ' ..unit):read("*l")
+            if status == "disabled" then
+                print("Executing systemd preset on: " ..unit)
+                os.execute(systemctl .." preset -q --now " .. unit)
+            end
         end
     end
 end