Modernize code.

Author: ioquatix

.github/workflows/test-coverage.yaml

@@ -36,6 +36,8 @@ jobs:
 
     - uses: actions/upload-artifact@v4
       with:
+        include-hidden-files: true
+        if-no-files-found: error
         name: coverage-${{matrix.os}}-${{matrix.ruby}}
         path: .covered.db
 

.rubocop.yml

@@ -47,3 +47,7 @@ Layout/EmptyLinesAroundModuleBody:
 
 Style/FrozenStringLiteralComment:
   Enabled: true
+
+Style/StringLiterals:
+  Enabled: true
+  EnforcedStyle: double_quotes

async-container.gemspec

@@ -10,8 +10,8 @@ Gem::Specification.new do |spec|
 	spec.authors = ["Samuel Williams", "Olle Jonsson", "Anton Sozontov", "Juan Antonio Martín Lucas", "Yuji Yaginuma"]
 	spec.license = "MIT"
 
-	spec.cert_chain  = ['release.cert']
-	spec.signing_key = File.expand_path('~/.gem/release.pem')
+	spec.cert_chain  = ["release.cert"]
+	spec.signing_key = File.expand_path("~/.gem/release.pem")
 
 	spec.homepage = "https://github.com/socketry/async-container"
 
@@ -20,7 +20,7 @@ Gem::Specification.new do |spec|
 		"source_code_uri" => "https://github.com/socketry/async-container.git",
 	}
 
-	spec.files = Dir.glob(['{lib}/**/*', '*.md'], File::FNM_DOTMATCH, base: __dir__)
+	spec.files = Dir.glob(["{lib}/**/*", "*.md"], File::FNM_DOTMATCH, base: __dir__)
 
 	spec.required_ruby_version = ">= 3.1"
 

config/sus.rb

@@ -3,7 +3,7 @@
 # Released under the MIT License.
 # Copyright, 2022, by Samuel Williams.
 
-require 'covered/sus'
+require "covered/sus"
 include Covered::Sus
 
-ENV['CONSOLE_LEVEL'] ||= 'fatal'
+ENV["CONSOLE_LEVEL"] ||= "fatal"

examples/benchmark/scalability.rb

@@ -6,8 +6,8 @@
 # gem install async-container
 gem "async-container"
 
-require 'async/clock'
-require_relative '../../lib/async/container'
+require "async/clock"
+require_relative "../../lib/async/container"
 
 def fibonacci(n)
 	if n < 2
@@ -17,7 +17,7 @@ def fibonacci(n)
 	end
 end
 
-require 'sqlite3'
+require "sqlite3"
 
 def work(*)
 	512.times do

examples/channel.rb

@@ -4,7 +4,7 @@
 # Copyright, 2020-2022, by Samuel Williams.
 # Copyright, 2020, by Olle Jonsson.
 
-require 'json'
+require "json"
 
 class Channel
 	def initialize

examples/container.rb

@@ -6,7 +6,7 @@
 # Copyright, 2019, by Yuji Yaginuma.
 # Copyright, 2022, by Anton Sozontov.
 
-require '../lib/async/container'
+require "../lib/async/container"
 
 Console.logger.debug!
 

examples/controller.rb

@@ -5,7 +5,7 @@
 # Copyright, 2022, by Anton Sozontov.
 # Copyright, 2024, by Samuel Williams.
 
-require '../lib/async/container/controller'
+require "../lib/async/container/controller"
 
 class Controller < Async::Container::Controller
 	def setup(container)

examples/fan-out/pipe.rb

@@ -4,7 +4,7 @@
 # Released under the MIT License.
 # Copyright, 2020-2024, by Samuel Williams.
 
-require 'async/container'
+require "async/container"
 
 container = Async::Container.new
 input, output = IO.pipe

examples/grace/server.rb

@@ -4,8 +4,8 @@
 # Released under the MIT License.
 # Copyright, 2024, by Samuel Williams.
 
-require '../../lib/async/container'
-require 'io/endpoint/host_endpoint'
+require "../../lib/async/container"
+require "io/endpoint/host_endpoint"
 
 Console.logger.debug!