Bump rubocop to 0.71 / Enable Style/FrozenStringLiteralComment rule (#767)

* Bump rubocop from 0.40 to 0.71

Since rubocop v0.71 support Ruby v2.7

* Rename cop: `Style/MethodName→Naming/MethodName` / `Style/FileName→Naming/FileName`

* Fix `Layout/TrailingBlankLines`

* Fix `Style/Encoding`

* Fix `Style/FrozenStringLiteralComment`, `Layout/EmptyLineAfterMagicComment`

* Update rubocop setting

Author: toshimaru

.rubocop.yml

@@ -1,11 +1,11 @@
 inherit_from: .rubocop_todo.yml
 
-Lint/EndAlignment:
-  AlignWith: variable
-
 Metrics/AbcSize:
   Enabled: false
 
+Metrics/BlockLength:
+  Enabled: false
+
 Metrics/ClassLength:
   Enabled: false
 
@@ -24,19 +24,34 @@ Metrics/ModuleLength:
 Metrics/PerceivedComplexity:
   Enabled: false
 
-Style/AlignParameters:
-  EnforcedStyle: with_fixed_indentation
+Style/CommentedKeyword:
+  Enabled: false
 
 Style/ClassAndModuleChildren:
   Enabled: false
 
 Style/Documentation:
   Enabled: false
 
-Style/ElseAlignment:
+Style/EvalWithLocation:
+  Enabled: false
+
+Style/ExpandPathArguments:
+  Enabled: false
+
+Style/GuardClause:
+  Enabled: false
+
+Style/IfUnlessModifier:
+  Enabled: false
+
+Style/NumericPredicate:
+  Enabled: false
+
+Style/PercentLiteralDelimiters:
   Enabled: false
 
-Style/SpaceInsideParens:
+Style/RedundantBegin:
   Enabled: false
 
 Style/SpecialGlobalVars:
@@ -45,5 +60,56 @@ Style/SpecialGlobalVars:
 Style/StringLiterals:
   Enabled: false
 
-Style/TrailingCommaInLiteral:
+Style/SymbolArray:
+  Enabled: false
+
+Style/TrailingCommaInArrayLiteral:
+  Enabled: false
+
+Layout/AlignArguments:
+  Enabled: false
+
+Layout/AlignParameters:
+  EnforcedStyle: with_fixed_indentation
+
+Layout/EndAlignment:
+  EnforcedStyleAlignWith: variable
+
+Layout/ElseAlignment:
+  Enabled: false
+
+Layout/EmptyLineAfterGuardClause:
+  Enabled: false
+
+Layout/IndentHeredoc:
+  Enabled: false
+
+Layout/SpaceInsideParens:
+  Enabled: false
+
+Layout/SpaceInsidePercentLiteralDelimiters:
+  Enabled: false
+
+Lint/ErbNewArguments:
+  Enabled: false
+
+Lint/MissingCopEnableDirective:
+  Enabled: false
+
+Lint/PercentStringArray:
+  Enabled: false
+
+Naming/HeredocDelimiterNaming:
+  Enabled: false
+
+Naming/UncommunicativeMethodParamName:
+  Enabled: false
+
+Security/YAMLLoad:
+  Enabled: false
+
+Gemspec/RequiredRubyVersion:
+  Enabled: false
+
+Bundler/OrderedGems:
   Enabled: false

Brewfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 brew "mysql"
 brew "postgresql"
-brew "sqlite"
+brew "sqlite"

Gemfile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 gemspec
@@ -13,7 +15,7 @@ pg_version = '0.9'
 pg_version = '1.1' if version >= 6.1
 
 group :development, :test do
-  gem 'rubocop', '~> 0.40.0'
+  gem 'rubocop', '~> 0.71.0'
   gem 'rake'
 end
 

Rakefile

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "bundler"
 Bundler.setup
 

activerecord-import.gemspec

@@ -1,4 +1,5 @@
-# -*- encoding: utf-8 -*-
+# frozen_string_literal: true
+
 require File.expand_path('../lib/activerecord-import/version', __FILE__)
 
 Gem::Specification.new do |gem|

benchmarks/benchmark.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'pathname'
 require "fileutils"
 require "active_record"

benchmarks/lib/base.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class BenchmarkBase
   attr_reader :results
 

benchmarks/lib/cli_parser.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'optparse'
 require 'ostruct'
 
@@ -8,7 +10,7 @@
 # * t - the table types to test. ie: myisam, innodb, memory, temporary, etc.
 #
 module BenchmarkOptionParser
-  BANNER = "Usage: ruby #{$0} [options]\nSee ruby #{$0} -h for more options.".freeze
+  BANNER = "Usage: ruby #{$0} [options]\nSee ruby #{$0} -h for more options."
 
   def self.print_banner
     puts BANNER

benchmarks/lib/float.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 # Taken from http://www.programmingishard.com/posts/show/128
 # Posted by rbates
 class Float

benchmarks/lib/mysql2_benchmark.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class Mysql2Benchmark < BenchmarkBase
   def benchmark_all( array_of_cols_and_vals )
     methods = self.methods.find_all { |m| m =~ /benchmark_/ }

benchmarks/lib/output_to_csv.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'csv'
 
 module OutputToCSV

benchmarks/lib/output_to_html.rb

@@ -1,15 +1,17 @@
+# frozen_string_literal: true
+
 require 'erb'
 
 module OutputToHTML
-  TEMPLATE_HEADER = <<"EOT".freeze
+  TEMPLATE_HEADER = <<"EOT"
   <div>
     All times are rounded to the nearest thousandth for display purposes. Speedups next to each time are computed
     before any rounding occurs. Also, all speedup calculations are computed by comparing a given time against
     the very first column (which is always the default ActiveRecord::Base.create method.
    </div>
 EOT
 
-  TEMPLATE = <<"EOT".freeze
+  TEMPLATE = <<"EOT"
  <style>
  td#benchmarkTitle {
    border: 1px solid black;

benchmarks/models/test_innodb.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class TestInnoDb < ActiveRecord::Base
   self.table_name = 'test_innodb'
 end

benchmarks/models/test_memory.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class TestMemory < ActiveRecord::Base
   self.table_name = 'test_memory'
 end

benchmarks/models/test_myisam.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class TestMyISAM < ActiveRecord::Base
   self.table_name = 'test_myisam'
 end

benchmarks/schema/mysql2_schema.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 ActiveRecord::Schema.define do
   create_table :test_myisam, options: 'ENGINE=MyISAM', force: true do |t|
     t.column :my_name, :string, null: false

gemfiles/4.2.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 4.2.0'
 gem 'composite_primary_keys', '~> 8.0'

gemfiles/5.0.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 5.0.0'
 gem 'composite_primary_keys', '~> 9.0'

gemfiles/5.1.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 5.1.0'
 gem 'composite_primary_keys', '~> 10.0'

gemfiles/5.2.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 5.2.0'
 gem 'composite_primary_keys', '~> 11.0'

gemfiles/6.0.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 6.0.0'
 gem 'composite_primary_keys', '~> 12.0'

gemfiles/6.1.gemfile

@@ -1,2 +1,4 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 6.1.0'
 gem 'composite_primary_keys', '~> 13.0'

gemfiles/7.0.gemfile

@@ -1 +1,3 @@
+# frozen_string_literal: true
+
 gem 'activerecord', '~> 7.0.0'

lib/activerecord-import.rb

@@ -1,4 +1,6 @@
-# rubocop:disable Style/FileName
+# rubocop:disable Naming/FileName
+# frozen_string_literal: true
+
 require "active_support/lazy_load_hooks"
 
 ActiveSupport.on_load(:active_record) do

lib/activerecord-import/active_record/adapters/abstract_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "activerecord-import/adapters/abstract_adapter"
 
 module ActiveRecord # :nodoc:

lib/activerecord-import/active_record/adapters/jdbcmysql_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/mysql2_adapter"
 require "activerecord-import/adapters/mysql2_adapter"
 

lib/activerecord-import/active_record/adapters/jdbcpostgresql_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/postgresql_adapter"
 require "activerecord-import/adapters/postgresql_adapter"
 

lib/activerecord-import/active_record/adapters/jdbcsqlite3_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/sqlite3_adapter"
 require "activerecord-import/adapters/sqlite3_adapter"
 

lib/activerecord-import/active_record/adapters/mysql2_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/mysql2_adapter"
 require "activerecord-import/adapters/mysql2_adapter"
 

lib/activerecord-import/active_record/adapters/postgresql_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/postgresql_adapter"
 require "activerecord-import/adapters/postgresql_adapter"
 

lib/activerecord-import/active_record/adapters/seamless_database_pool_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "seamless_database_pool"
 require "active_record/connection_adapters/seamless_database_pool_adapter"
 require "activerecord-import/adapters/mysql_adapter"

lib/activerecord-import/active_record/adapters/sqlite3_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_record/connection_adapters/sqlite3_adapter"
 require "activerecord-import/adapters/sqlite3_adapter"
 

lib/activerecord-import/adapters/abstract_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ActiveRecord::Import::AbstractAdapter
   module InstanceMethods
     def next_value_for_sequence(sequence_name)

lib/activerecord-import/adapters/em_mysql2_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "activerecord-import/adapters/mysql_adapter"
 
 module ActiveRecord::Import::EMMysql2Adapter

lib/activerecord-import/adapters/mysql2_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "activerecord-import/adapters/mysql_adapter"
 
 module ActiveRecord::Import::Mysql2Adapter

lib/activerecord-import/adapters/mysql_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ActiveRecord::Import::MysqlAdapter
   include ActiveRecord::Import::ImportSupport
   include ActiveRecord::Import::OnDuplicateKeyUpdateSupport

lib/activerecord-import/adapters/postgresql_adapter.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module ActiveRecord::Import::PostgreSQLAdapter
   include ActiveRecord::Import::ImportSupport
   include ActiveRecord::Import::OnDuplicateKeyUpdateSupport

lib/activerecord-import/adapters/sqlite3_adapter.rb

@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 module ActiveRecord::Import::SQLite3Adapter
   include ActiveRecord::Import::ImportSupport
   include ActiveRecord::Import::OnDuplicateKeyUpdateSupport
 
-  MIN_VERSION_FOR_IMPORT = "3.7.11".freeze
-  MIN_VERSION_FOR_UPSERT = "3.24.0".freeze
+  MIN_VERSION_FOR_IMPORT = "3.7.11"
+  MIN_VERSION_FOR_UPSERT = "3.24.0"
   SQLITE_LIMIT_COMPOUND_SELECT = 500
 
   # Override our conformance to ActiveRecord::Import::ImportSupport interface

lib/activerecord-import/base.rb

@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 require "pathname"
 require "active_record"
 require "active_record/version"
 
 module ActiveRecord::Import
-  ADAPTER_PATH = "activerecord-import/active_record/adapters".freeze
+  ADAPTER_PATH = "activerecord-import/active_record/adapters"
 
   def self.base_adapter(adapter)
     case adapter

lib/activerecord-import/import.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "ostruct"
 
 module ActiveRecord::Import::ConnectionAdapters; end

lib/activerecord-import/mysql2.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 warn <<-MSG
 [DEPRECATION] loading activerecord-import via 'require "activerecord-import/<adapter-name>"'
   is deprecated. Update to autorequire using 'require "activerecord-import"'. See