Improve logging messages for release notes fetchers

src/lib/y2packager/release_notes_content_prefs.rb

@@ -19,5 +19,11 @@ module Y2Packager
   #   @return [Symbol] Language to use if release notes for user_lang are not available
   # @!attribute [rw] format
   #   @return [Symbol] Release notes format (:txt or :rtf)
-  ReleaseNotesContentPrefs = Struct.new(:user_lang, :fallback_lang, :format)
+  ReleaseNotesContentPrefs = Struct.new(:user_lang, :fallback_lang, :format) do
+    # @return [String] Human readable representation of content preferences
+    def to_s
+      "content preferences: language '#{user_lang}', fallback language: '#{fallback_lang}', "\
+        "and format '#{format}'"
+    end
+  end
 end

src/lib/y2packager/release_notes_fetchers/rpm.rb

@@ -51,8 +51,8 @@ def release_notes(prefs)
         end
 
         relnotes = extract_release_notes(prefs)
-        log.info "Release notes for #{product.name} in #{release_notes_package} " \
-          "with #{prefs.inspect}: #{relnotes.inspect}"
+        log.info "Got release notes for #{product.name} from package #{release_notes_package} " \
+          "with #{prefs}"
         relnotes
       end
 

src/lib/y2packager/release_notes_fetchers/url.rb

@@ -114,7 +114,8 @@ def release_notes(prefs)
         relnotes = fetch_release_notes(prefs)
 
         if relnotes
-          log.info "Release notes for #{product.name} with #{prefs.inspect}: #{relnotes.inspect}"
+          log.info "Got release notes for #{product.name} from URL #{relnotes_url} " \
+            "with #{prefs}"
           return relnotes
         end
 

test/lib/release_notes_content_prefs_test.rb

@@ -0,0 +1,16 @@
+#!/usr/bin/env rspec
+
+require_relative "../test_helper"
+require "y2packager/release_notes_content_prefs"
+
+describe Y2Packager::ReleaseNotesContentPrefs do
+  subject(:prefs) { described_class.new("es_ES", "en", :txt) }
+
+  describe "#to_s" do
+    it "returns a human readable representation" do
+      expect(prefs.to_s).to eq(
+        "content preferences: language 'es_ES', fallback language: 'en', and format 'txt'"
+      )
+    end
+  end
+end