Add support to install missing packages on running system

src/lib/bootloader/bootloader_base.rb

@@ -4,6 +4,7 @@
 Yast.import "BootStorage"
 Yast.import "Linuxrc"
 Yast.import "Mode"
+Yast.import "PackageSystem"
 
 module Bootloader
   # Represents base for all kinds of bootloaders
@@ -16,6 +17,8 @@ def initialize
     # writes configuration to target disk
     def write
       write_sysconfig
+      # in running system install package, for other modes, it need specific handling
+      Yast::PackageSystem.InstallAll(packages) if Yast::Mode.normal
     end
 
     # reads configuration from target disk

test/bootloader_base_test.rb

@@ -4,16 +4,29 @@
 
 describe Bootloader::BootloaderBase do
   describe "#write" do
-    it "writes to sysconfig name of its child" do
+    before do
+      allow(Bootloader::Sysconfig).to receive(:new).and_return(double(write: nil))
+      allow(Yast::PackageSystem).to receive(:InstallAll)
+
       subject.define_singleton_method(:name) { "funny_bootloader" }
+    end
 
+    it "writes to sysconfig name of its child" do
       sysconfig = double(Bootloader::Sysconfig, write: nil)
       expect(Bootloader::Sysconfig).to receive(:new)
         .with(bootloader: "funny_bootloader")
         .and_return(sysconfig)
 
       subject.write
     end
+
+    context "Mode.normal is set" do
+      it "install packages listed required by bootloader from packages method" do
+        expect(Yast::PackageSystem).to receive(:InstallAll).with(["kexec-tools"])
+
+        subject.write
+      end
+    end
   end
 
   describe "#read" do