Merge pull request #49 from yast/fix_help

Fix help

.gitignore

@@ -4,3 +4,4 @@ coverage/
 doc/
 /.yardoc
 /*.pot
+/package/*.tar.bz2

package/yast2-alternatives.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Nov 18 22:10:43 UTC 2020 - Josef Reidinger <jreidinger@suse.com>
+
+- Handle properly help command for alternatives client
+  (bsc#1172340)
+- 4.3.0
+
 -------------------------------------------------------------------
 Thu Jan 16 12:12:09 UTC 2020 - Dominique Leuenberger <dimstar@opensuse.org>
 

package/yast2-alternatives.spec

@@ -17,7 +17,7 @@
 
 
 Name:           yast2-alternatives
-Version:        4.2.3
+Version:        4.3.0
 Release:        0
 Summary:        YaST2 - Manage Update-alternatives switching
 License:        GPL-2.0-only

src/lib/y2_alternatives/client/start_checking_permissions.rb

@@ -16,6 +16,7 @@
 #  To contact SUSE about this file by physical or electronic mail,
 #  you may find current contact information at www.suse.com
 
+require "yast"
 require "y2_alternatives/dialog/list_alternatives"
 
 Yast.import "Confirm"
@@ -24,9 +25,39 @@ module Y2Alternatives
   module Client
     # Checks if user is root and create a ListAlternatives dialog
     class StartCheckingPermissions
+      include Yast::I18n
+
       def main
+        textdomain "alternatives"
+
+        if Yast::WFM.Args.include?("help")
+          print_help
+          return true
+        elsif !Yast::WFM.Args.empty?
+          print_help
+          return false
+        end
+
         Dialog::ListAlternatives.run if Yast::Confirm.MustBeRoot
       end
+
+    private
+
+      def print_help
+        # TRANSLATORS: %s stands for CLI program to use instead of yast module
+        msg = format(
+          _("This module does not support command line. Use '%s' instead."),
+          "update-alternatives"
+        )
+
+        cmdline_description = {
+          "id"   => "alternatives",
+          "help" => msg
+        }
+
+        Yast.import "CommandLine"
+        Yast::CommandLine.Run(cmdline_description)
+      end
     end
   end
 end