drop support for EOL'd Ruby, require 2.6

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest ]
-        ruby-version: [2.5, 2.6, 2.7, '3.0', 3.1]
+        ruby-version: [2.6, 2.7, '3.0', 3.1]
 
     runs-on: ${{ matrix.os }}
 

.standard.yml

@@ -1,4 +1,4 @@
-ruby_version: 2.2.0
+ruby_version: 2.6
 ignore:
   - tmp/**/*
   - test/fixture/**/*

lib/standard/creates_config_store/assigns_rubocop_yaml.rb

@@ -4,7 +4,7 @@ class Standard::CreatesConfigStore
   class AssignsRubocopYaml
     def call(config_store, standard_config)
       config_store.options_config = rubocop_yaml_path(standard_config[:ruby_version])
-      config_store.instance_variable_get("@options_config")
+      config_store.instance_variable_get(:@options_config)
     end
 
     private

standard.gemspec

@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.version = Standard::VERSION
   spec.authors = ["Justin Searls"]
   spec.email = ["searls@gmail.com"]
-  spec.required_ruby_version = ">= 2.5.0"
+  spec.required_ruby_version = ">= 2.6.0"
 
   spec.summary = "Ruby Style Guide, with linter & automatic code fixer"
   spec.homepage = "https://github.com/testdouble/standard"

test/standard/builds_config_test.rb

@@ -52,7 +52,7 @@ def test_decked_out_standard_yaml
 
     expected_config = RuboCop::ConfigStore.new.tap do |config_store|
       config_store.options_config = path("config/ruby-1.8.yml")
-      options_config = config_store.instance_variable_get("@options_config")
+      options_config = config_store.instance_variable_get(:@options_config)
       options_config["AllCops"]["Exclude"] |= [path("test/fixture/config/y/monkey/**/*")]
       options_config["Fake/Lol"] = {"Exclude" => [path("test/fixture/config/y/neat/cool.rb")]}
       options_config["Fake/Kek"] = {"Exclude" => [path("test/fixture/config/y/neat/cool.rb")]}
@@ -131,7 +131,7 @@ def test_todo_with_offenses_merged
   def config_store(config_root = nil, rubocop_yml = highest_compatible_yml_version, ruby_version = RUBY_VERSION)
     RuboCop::ConfigStore.new.tap do |config_store|
       config_store.options_config = path(rubocop_yml)
-      options_config = config_store.instance_variable_get("@options_config")
+      options_config = config_store.instance_variable_get(:@options_config)
       options_config["AllCops"]["TargetRubyVersion"] = ruby_version.to_f
       options_config["AllCops"]["Exclude"] |= standard_default_ignores(config_root)
     end.for("").to_h

test/standard_test.rb

@@ -12,11 +12,11 @@ def test_configured_all_cops
     base = "config/base.yml"
 
     # see if everything is configured
-    allowed = Standard::BuildsConfig.new.call([]).
-      rubocop_config_store.
-      instance_variable_get(:@options_config).
-      instance_variable_get(:@hash).
-      keys
+    allowed = Standard::BuildsConfig.new.call([])
+      .rubocop_config_store
+      .instance_variable_get(:@options_config)
+      .instance_variable_get(:@hash)
+      .keys
     configured = YAML.load_file(base).keys
     missing = (allowed - configured).grep(/\//) # ignore groups like "Layout"
     extra = (configured - allowed).grep(/\AA-Z/) # ignore "require"
@@ -27,7 +27,7 @@ def test_configured_all_cops
       separator = "\n\n"
       sections = File.read(base).strip.split(separator)
       sections += missing.map { |key| "#{key}:\n  Enabled: false" }
-      sections = sections.first(1) + sections[1..-1].sort # keep require in the front
+      sections = sections.first(1) + sections[1..].sort # keep require in the front
       File.write(base, sections.join(separator) + "\n")
       flunk "#{base} has been rewritten to add missing cops, review and commit it"
     end