Extract class

.rubocop_todo.yml

@@ -1,48 +1,42 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2023-10-10 15:10:18 UTC using RuboCop version 1.56.4.
+# on 2024-06-04 09:54:55 UTC using RuboCop version 1.64.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 36
+# Offense count: 40
 # Configuration parameters: AllowedMethods, AllowedPatterns, CountRepeatedAttributes.
 Metrics/AbcSize:
   Max: 35
 
-# Offense count: 1
-# Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns, inherit_mode.
-# AllowedMethods: refine
-Metrics/BlockLength:
-  Max: 54
-
-# Offense count: 11
+# Offense count: 12
 # Configuration parameters: CountComments, CountAsOne.
 Metrics/ClassLength:
-  Max: 283
+  Max: 177
 
-# Offense count: 3
+# Offense count: 4
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 Metrics/CyclomaticComplexity:
   Max: 11
 
-# Offense count: 72
+# Offense count: 75
 # Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns.
 Metrics/MethodLength:
-  Max: 56
+  Max: 32
 
 # Offense count: 2
 # Configuration parameters: CountKeywordArgs, MaxOptionalParameters.
 Metrics/ParameterLists:
   Max: 8
 
-# Offense count: 4
+# Offense count: 3
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 Metrics/PerceivedComplexity:
   Max: 11
 
-# Offense count: 21
+# Offense count: 29
 # Configuration parameters: CountAsOne.
 RSpec/ExampleLength:
   Max: 16

lib/imap/backup/cli/helpers.rb

@@ -1,5 +1,6 @@
 require "thor"
 
+require "imap/backup/cli/options"
 require "imap/backup/configuration"
 require "imap/backup/configuration_not_found"
 
@@ -11,67 +12,8 @@ class CLI < Thor; end
   # Provides helper methods for CLI classes
   module CLI::Helpers
     def self.included(base)
-      base.class_eval do
-        def self.accounts_option
-          method_option(
-            "accounts",
-            type: :string,
-            desc: "a comma-separated list of accounts (defaults to all configured accounts)",
-            aliases: ["-a"]
-          )
-        end
-
-        def self.config_option
-          method_option(
-            "config",
-            type: :string,
-            desc: "supply the configuration file path (default: ~/.imap-backup/config.json)",
-            aliases: ["-c"]
-          )
-        end
-
-        def self.format_option
-          method_option(
-            "format",
-            type: :string,
-            desc: "the output type, 'text' for plain text or 'json'",
-            aliases: ["-f"]
-          )
-        end
-
-        def self.quiet_option
-          method_option(
-            "quiet",
-            type: :boolean,
-            desc: "silence all output",
-            aliases: ["-q"]
-          )
-        end
-
-        def self.refresh_option
-          method_option(
-            "refresh",
-            type: :boolean,
-            desc: "in the default 'keep all emails' mode, " \
-                  "updates flags for messages that are already downloaded",
-            aliases: ["-r"]
-          )
-        end
-
-        def self.verbose_option
-          method_option(
-            "verbose",
-            type: :boolean,
-            desc:
-              "increase the amount of logging. " \
-              "Without this option, the program gives minimal output. " \
-              "Using this option once gives more detailed output. " \
-              "Whereas, using this option twice also shows all IMAP network calls",
-            aliases: ["-v"],
-            repeatable: true
-          )
-        end
-      end
+      options = CLI::Options.new(base: base)
+      options.define_options
     end
 
     # Processes command-line parameters

lib/imap/backup/cli/options.rb

@@ -0,0 +1,74 @@
+require "thor"
+
+module Imap; end
+
+module Imap::Backup
+  class CLI < Thor; end
+
+  # Defines option methods for CLI classes
+  class CLI::Options
+    attr_reader :base
+
+    # Options common to many commands
+    OPTIONS = [
+      {
+        name: "accounts",
+        parameters: {
+          type: :string, aliases: ["-a"],
+          desc: "a comma-separated list of accounts (defaults to all configured accounts)"
+        }
+      },
+      {
+        name: "config",
+        parameters: {
+          type: :string, aliases: ["-c"],
+          desc: "supply the configuration file path (default: ~/.imap-backup/config.json)"
+        }
+      },
+      {
+        name: "format",
+        parameters: {
+          type: :string, desc: "the output type, 'text' for plain text or 'json'", aliases: ["-f"]
+        }
+      },
+      {
+        name: "quiet",
+        parameters: {
+          type: :boolean, desc: "silence all output", aliases: ["-q"]
+        }
+      },
+      {
+        name: "refresh",
+        parameters: {
+          type: :boolean, aliases: ["-r"],
+          desc: "in the default 'keep all emails' mode, " \
+                "updates flags for messages that are already downloaded"
+        }
+      },
+      {
+        name: "verbose",
+        parameters: {
+          type: :boolean, aliases: ["-v"], repeatable: true,
+          desc: "increase the amount of logging. " \
+                "Without this option, the program gives minimal output. " \
+                "Using this option once gives more detailed output. " \
+                "Whereas, using this option twice also shows all IMAP network calls"
+        }
+      }
+    ].freeze
+
+    def initialize(base:)
+      @base = base
+    end
+
+    def define_options
+      OPTIONS.each do |option|
+        base.singleton_class.class_eval do
+          define_method("#{option[:name]}_option") do
+            method_option(option[:name], **option[:parameters])
+          end
+        end
+      end
+    end
+  end
+end