Better handling of resolved paths. (#242)

* Fixes #241.

lib/falcon/command/paths.rb

@@ -12,16 +12,18 @@ module Paths
 			# Resolve a set of `@paths` that may contain wildcards, into a sorted, unique array.
 			# @returns [Array(String)]
 			def resolved_paths(&block)
-				@paths.collect do |path|
-					Dir.glob(path)
-				end.flatten.sort.uniq.each(&block)
+				if @paths
+					@paths.collect do |path|
+						Dir.glob(path)
+					end.flatten.sort.uniq.each(&block)
+				end
 			end
 
 			# Build a configuration based on the resolved paths.
 			def configuration
 				configuration = Configuration.new
 
-				self.resolved_paths.each do |path|
+				self.resolved_paths do |path|
 					path = File.expand_path(path)
 
 					configuration.load_file(path)

lib/falcon/command/proxy.rb

@@ -56,7 +56,7 @@ def call
 					buffer.puts "- To terminate: Ctrl-C or kill #{Process.pid}"
 					buffer.puts "- To reload: kill -HUP #{Process.pid}"
 
-					self.resolved_paths.each do |path|
+					self.resolved_paths do |path|
 						buffer.puts "- Loading configuration from #{path}"
 					end
 				end

lib/falcon/command/redirect.rb

@@ -55,7 +55,7 @@ def call
 					buffer.puts "- To terminate: Ctrl-C or kill #{Process.pid}"
 					buffer.puts "- To reload: kill -HUP #{Process.pid}"
 
-					self.resolved_paths.each do |path|
+					self.resolved_paths do |path|
 						buffer.puts "- Loading configuration from #{path}"
 					end
 				end

lib/falcon/command/virtual.rb

@@ -3,6 +3,8 @@
 # Released under the MIT License.
 # Copyright, 2018-2024, by Samuel Williams.
 
+require 'async/service'
+
 require_relative '../environment/virtual'
 
 require 'samovar'

lib/falcon/environment/configured.rb

@@ -16,9 +16,13 @@ def configuration_paths
 
 			# All the falcon application configuration paths, with wildcards expanded.
 			def resolved_configuration_paths
-				configuration_paths.flat_map do |path|
-					Dir.glob(path)
-				end.uniq
+				if configuration_paths = self.configuration_paths
+					configuration_paths.flat_map do |path|
+						Dir.glob(path)
+					end.uniq
+				else
+					[]
+				end
 			end
 
 			def configuration

test/falcon/command/virtual.rb

@@ -42,6 +42,21 @@ def around
 
 	let(:insecure_client) {Async::HTTP::Client.new(command.insecure_endpoint, retries: 0)}
 
+	with 'no paths' do
+		let (:paths) {[]}
+
+		it "should still start correctly" do
+			request = Protocol::HTTP::Request.new("https", "hello.localhost", "GET", "/index")
+
+			Async do
+				response = insecure_client.get("/index")
+
+				expect(response).to be(:failure?)
+				pp response
+			end
+		end
+	end
+
 	it "gets redirected from insecure to secure endpoint" do
 		request = Protocol::HTTP::Request.new("http", "hello.localhost", "GET", "/index")