[master] Workarounds for the openSUSE => SLES migration

package/yast2-migration.changes

@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Thu May 30 14:08:16 UTC 2019 - Ladislav Slezák <lslezak@suse.cz>
+
+- Fixes for the openSUSE Leap => SLES migration (jsc#SLE-7006)
+  - Enable the openSUSE => SUSE vendor change
+  - Disable all other repositories (esp. the default OSS and
+    non-OSS repositories) which could collide with the new SLES
+    repositories
+- 4.1.2
+
 -------------------------------------------------------------------
 Thu Nov 29 09:15:35 UTC 2018 - lslezak@suse.cz
 

package/yast2-migration.spec

@@ -17,7 +17,7 @@
 
 
 Name:           yast2-migration
-Version:        4.1.1
+Version:        4.1.2
 Release:        0
 
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build

src/lib/migration/main_workflow.rb

@@ -1,5 +1,5 @@
 # ------------------------------------------------------------------------------
-# Copyright (c) 2015 SUSE LLC, All Rights Reserved.
+# Copyright (c) 2015-2019 SUSE LLC, All Rights Reserved.
 #
 #
 # This program is free software; you can redistribute it and/or modify it under
@@ -26,6 +26,7 @@
 Yast.import "Report"
 Yast.import "Pkg"
 Yast.import "Installation"
+Yast.import "OSRelease"
 Yast.import "PackageCallbacks"
 
 require "migration/finish_dialog"
@@ -47,6 +48,14 @@ class MainWorkflow
       "--cleanup-algorithm=number --print-number --userdata important=yes " \
       "--description=\"%{description}\"".freeze
 
+    # a temporary vendor configuration file
+    VENDOR_FILE = "/etc/zypp/vendors.d/YaST_openSUSE_migration.conf".freeze
+
+    # content of the vendor configuation file,
+    # make the "openSUSE" and "SUSE" vendors equal, allow to change
+    # the vendor from "openSUSE" to "SUSE"
+    VENDOR_CONTENT = "[main]\nvendors=openSUSE,SUSE\n".freeze
+
     def self.run
       workflow = new
       workflow.run
@@ -60,13 +69,14 @@ def run
         Yast::Wizard.CreateDialog
         Yast::Sequencer.Run(aliases, WORKFLOW_SEQUENCE)
       ensure
+        vendor_cleanup
         Yast::Wizard.CloseDialog
       end
     end
 
   private
 
-    # remeber the "pre" snapshot id (needed for the "post" snapshot)
+    # remember the "pre" snapshot id (needed for the "post" snapshot)
     attr_accessor :pre_snapshot
 
     WORKFLOW_SEQUENCE = {
@@ -184,6 +194,7 @@ def rollback
     end
 
     def repositories
+      prepare_repos
       Yast::WFM.CallFunction("migration_repos", [{ "enable_back" => false }])
     end
 
@@ -319,7 +330,11 @@ def restart_yast(step)
       :restart
     end
 
+    # Initialize the package manager (libzypp)
     def init_pkg_mgmt
+      # the vendor configuration file must be created *before* initializing libzypp
+      vendor_init
+
       # display progress when refreshing repositories
       Yast::PackageCallbacks.InitPackageCallbacks
 
@@ -332,5 +347,34 @@ def init_pkg_mgmt
 
       ret
     end
+
+    # Enable the openSUSE => SUSE vendor change when migrating from
+    # an openSUSE distribution to SLE.
+    def vendor_init
+      File.write(VENDOR_FILE, VENDOR_CONTENT) if opensuse?
+    end
+
+    # Remove the vendor configuration file
+    def vendor_cleanup
+      File.delete(VENDOR_FILE) if File.exist?(VENDOR_FILE)
+    end
+
+    # Prepare the repositories for the online migration.
+    # This mainly activates some workarounds in the openSUSE => SLE migration
+    def prepare_repos
+      return unless opensuse?
+
+      # disable all enabled repositories, the migration only removes (upgrades)
+      # the repositories from the registration server (SCC), all other repositories
+      # (like the default OSS and non-OSS repos) would collide with the new SLES repos
+      Yast::Pkg.SourceGetCurrent(true).each { |r| Yast::Pkg.SourceSetEnabled(r, false) }
+    end
+
+    # Running in an openSUSE distribution?
+    #
+    # @return [Boolean] True if running in an openSUSE distribution, false otherwise
+    def opensuse?
+      Yast::OSRelease.id.match?(/opensuse/i)
+    end
   end
 end

test/main_workflow_test.rb

@@ -62,6 +62,8 @@ def mock_client(name, res)
       allow(Yast::Pkg).to receive(:TargetLoad).and_return(true)
       allow(Yast::Pkg).to receive(:SourceRestore).and_return(true)
       allow(Yast::Pkg).to receive(:SourceLoad).and_return(true)
+      allow(Yast::OSRelease).to receive(:id).and_return("sles")
+      allow(File).to receive(:delete).with(Migration::MainWorkflow::VENDOR_FILE)
     end
 
     it "pass workflow sequence to Yast sequencer" do
@@ -154,5 +156,28 @@ def mock_client(name, res)
 
       expect(::Migration::MainWorkflow.run).to eq :restart
     end
+
+    context "in openSUSE Leap" do
+      before do
+        allow(Yast::OSRelease).to receive(:id).and_return("opensuse-leap")
+        allow(File).to receive(:write).with(Migration::MainWorkflow::VENDOR_FILE, anything)
+        allow(Yast::Pkg).to receive(:SourceGetCurrent).and_return([])
+        allow(Yast::Pkg).to receive(:SourceSetEnabled)
+      end
+
+      it "writes the vendor config file" do
+        expect(File).to receive(:write).with(Migration::MainWorkflow::VENDOR_FILE,
+          Migration::MainWorkflow::VENDOR_CONTENT)
+
+        ::Migration::MainWorkflow.run
+      end
+
+      it "disables all current repositories" do
+        expect(Yast::Pkg).to receive(:SourceGetCurrent).and_return([42])
+        expect(Yast::Pkg).to receive(:SourceSetEnabled).with(42, false)
+
+        ::Migration::MainWorkflow.run
+      end
+    end
   end
 end