Add delta rpms to module and UI

src/include/online-update-configuration/OUCDialogs.rb

@@ -69,6 +69,7 @@ def initialize_online_update_configuration_OUCDialogs(include_target)
       @skipInteractivePatches = _("Skip Interactive Patches")
       @autoAgreeWithLicenses = _("Agree with Licenses")
       @includeRecommends = _("Include Recommended Packages")
+      @use_delta_rpm = _("Use delta rpms")
       @currentUpdateRepo = _("Current Update Repository:")
       @needToRegister = _(
         "In order to add the default update repository\nyou have to register this product."
@@ -212,6 +213,14 @@ def getOUCDialog(type)
                     OnlineUpdateConfiguration.includeRecommends == true ? true : false
                   )
                 ),
+                VSpacing(0.2),
+                Left(
+                  CheckBox(
+                    Id(:use_delta_rpm),
+                    @use_delta_rpm,
+                    OnlineUpdateConfiguration.use_delta_rpm
+                  )
+                ),
                 VSpacing(0.8),
                 CheckBoxFrame(
                   Id(:category),

src/lib/online-update-configuration/zypp_config.rb

@@ -0,0 +1,35 @@
+module ZyppConfiguration
+  CONFIG_USE_DELTA_RPM = '.etc.zypp_conf.value.main.\"download.use_deltarpm\"'
+
+  def zypp_config
+    @config ||= ZyppConfig.new
+  end
+
+  class ZyppConfig
+    def use_delta_rpm?
+      current_config = delta_rpm_config_value
+      # Default settings in zypp.conf for using delta rpms is true
+      current_config == nil || current_config == 'true'
+    end
+
+    def activate_delta_rpm
+      set_config_value(true)
+    end
+
+    def deactivate_delta_rpm
+      set_config_value(false)
+    end
+
+    private
+
+    def set_config_value new_value
+      return if new_value == use_delta_rpm?
+      Yast::SCR.Write(Yast::Path.new(CONFIG_USE_DELTA_RPM), new_value)
+    end
+
+    def delta_rpm_config_value
+      Yast::SCR.Read(Yast::Path.new(CONFIG_USE_DELTA_RPM))
+    end
+  end
+end
+

src/modules/OnlineUpdateConfiguration.rb

@@ -28,9 +28,12 @@
 #
 # $Id: OnlineUpdateConfiguration.ycp 1 2008-09-10 09:45:05Z jdsn $
 require "yast"
+require "online-update-configuration/zypp_config"
 
 module Yast
   class OnlineUpdateConfigurationClass < Module
+    include ZyppConfiguration
+
     def main
       Yast.import "Pkg"
 
@@ -45,6 +48,7 @@ def main
       @skipInteractivePatches = true
       @autoAgreeWithLicenses = false
       @includeRecommends = false
+      @use_delta_rpm = true
       @updateInterval = :weekly
       @currentCategories = []
       @OUCmodified = false
@@ -546,6 +550,8 @@ def Read
           path(".sysconfig.automatic_online_update.AOU_PATCH_CATEGORIES")
         )
       )
+      @use_delta_rpm = zypp_config.use_delta_rpm?
+
       @currentCategories = Builtins.splitstring(patchCategories, " ")
       @currentCategories = Builtins.filter(@currentCategories) do |s|
         s != nil && s != ""
@@ -617,6 +623,7 @@ def Write
         path(".sysconfig.automatic_online_update.AOU_INCLUDE_RECOMMENDS"),
         @includeRecommends == true ? "true" : "false"
       )
+      @use_delta_rpm ? zypp_config.activate_delta_rpm : zypp_config.deactivate_delta_rpm
       catConf = ""
       if Ops.greater_than(Builtins.size(@currentCategories), 0)
         catConf = Builtins.mergestring(@currentCategories, " ")
@@ -665,6 +672,7 @@ def Export
     publish :variable => :skipInteractivePatches, :type => "boolean"
     publish :variable => :autoAgreeWithLicenses, :type => "boolean"
     publish :variable => :includeRecommends, :type => "boolean"
+    publish :variable => :use_delta_rpm, :type => "boolean"
     publish :variable => :updateInterval, :type => "symbol"
     publish :variable => :currentCategories, :type => "list <string>"
     publish :variable => :OUCmodified, :type => "boolean"