This allows us to propagate the logger to child fibers/threads. (#59)

console.gemspec

@@ -20,6 +20,6 @@ Gem::Specification.new do |spec|
 	spec.required_ruby_version = ">= 3.0"
 
 	spec.add_dependency "fiber-annotation"
-	spec.add_dependency "fiber-local"
+	spec.add_dependency "fiber-storage"
 	spec.add_dependency "json"
 end

lib/console/logger.rb

@@ -13,12 +13,10 @@
 require_relative 'terminal/logger'
 require_relative 'serialized/logger'
 
-require 'fiber/local'
+require 'fiber/storage'
 
 module Console
 	class Logger < Filter[debug: 0, info: 1, warn: 2, error: 3, fatal: 4]
-		extend Fiber::Local
-
 		# Set the default log level based on `$DEBUG` and `$VERBOSE`.
 		# You can also specify CONSOLE_LEVEL=debug or CONSOLE_LEVEL=info in environment.
 		# https://mislav.net/2011/06/ruby-verbose-mode/ has more details about how it all fits together.
@@ -56,8 +54,12 @@ def self.default_logger(output = $stderr, env = ENV, **options)
 			return logger
 		end
 
-		def self.local
-			self.default_logger
+		def self.instance
+			Fiber[:console_logger] ||= self.default_logger
+		end
+
+		def self.instance=(logger)
+			Fiber[:console_logger] = logger
 		end
 
 		DEFAULT_LEVEL = 1

test/console/logger.rb

@@ -15,6 +15,22 @@
 
 	let(:message) {"Hello World"}
 
+	with '.instance' do
+		it "propagates to child thread" do
+			Fiber.new do
+				expect(Fiber[:console_logger]).to be_nil
+
+				logger = Console::Logger.instance
+
+				Fiber.new do
+					expect(Console::Logger.instance).to be_equal(logger)
+				end.resume
+			end.resume
+
+			expect(Fiber[:console_logger]).to be_nil
+		end
+	end
+
 	with '#with' do
 		let(:nested) {logger.with(name: "nested", level: :debug)}