Display detected technologies when running the tool.

lib/package/audit/services/command_parser.rb

@@ -13,7 +13,7 @@
 
 module Package
   module Audit
-    class CommandParser
+    class CommandParser # rubocop:disable Metrics/ClassLength
       def initialize(dir, options, report)
         @dir = dir
         @options = options
@@ -22,7 +22,7 @@ def initialize(dir, options, report)
         @groups = @options[Enum::Option::GROUP]
         @technologies = parse_technologies!
         validate_format!
-        @spinner = Util::Spinner.new('Evaluating packages and their dependencies...')
+        @spinner = Util::Spinner.new("Evaluating packages and their dependencies for #{human_readable_technologies}...")
       end
 
       def run
@@ -123,7 +123,16 @@ def validate_format!
       def parse_technologies!
         technology_validator = Technology::Validator.new(@dir)
         @options[Enum::Option::TECHNOLOGY]&.each { |technology| technology_validator.validate! technology }
-        @options[Enum::Option::TECHNOLOGY] || Technology::Detector.new(@dir).detect
+        (@options[Enum::Option::TECHNOLOGY] || Technology::Detector.new(@dir).detect).sort
+      end
+
+      def human_readable_technologies
+        array = @technologies.map(&:capitalize)
+        return '' if array.nil?
+        return array.join if array.size <= 1
+        return array.join(' and ') if array.size == 2
+
+        "#{array[0..-2].join(', ')}, and #{array.last}"
       end
     end
   end

sig/package/audit/services/command_parser.rbs

@@ -15,6 +15,8 @@ module Package
 
       private
 
+      def human_readable_technologies: -> String
+
       def learn_more_command: (String) -> String?
 
       def parse_config_file!: -> Hash[String, untyped]?

steep_expectations.yml

@@ -145,6 +145,18 @@
     severity: WARNING
     message: 'Cannot find the declaration of constant: `Bundler`'
     code: Ruby::UnknownConstant
+- file: lib/package/audit/services/command_parser.rb
+  diagnostics:
+  - range:
+      start:
+        line: 135
+        character: 24
+      end:
+        line: 135
+        character: 28
+    severity: ERROR
+    message: Type `(::Array[::String] | nil)` does not have method `join`
+    code: Ruby::NoMethod
 - file: lib/package/audit/services/package_printer.rb
   diagnostics:
   - range:

test/package/test_audit.rb

@@ -60,7 +60,7 @@ def test_that_there_is_a_report_of_gems
       output = `bundle exec package-audit test/files/gemfile/report`
 
       assert_match 'Found a total of 3 ruby packages.', output
-      assert_match '1 vulnerable (8 vulnerabilities), 2 outdated, 1 deprecated.', output
+      assert_match '1 vulnerable (11 vulnerabilities), 2 outdated, 1 deprecated.', output
     end
 
     def test_that_there_is_a_message_about_outdated_gems