fix some loading issues

bin/mayl

@@ -2,4 +2,4 @@
 $: << 'lib'
 require 'mayl'
 
-Mayl::Repl.new(ARGV[1]).start
+Mayl::Repl.new(ARGV[0]).start

lib/mayl/loader.rb

@@ -17,9 +17,13 @@ module Loader
     #
     # Returns an Array of Locale objects.
     def self.load(path)
-      Dir[File.expand_path(path) << "/*.yml"].map { |filename|
+      locales = Dir[File.expand_path(path) << "/*.yml"].map { |filename|
         Locale.new filename, YAML.load(File.read(filename))
       }
+
+      abort "Error: No locales found under ./#{path}" if locales.empty?
+
+      locales
     end
   end
 end

lib/mayl/repl.rb

@@ -8,7 +8,7 @@ class Repl
     #
     # path - The path to get the locales from (defaults to 'config/locales').
     def initialize(path)
-      path ||= 'config/locales'
+      path    ||= 'config/locales'
       @env    = Env.new(path)
       @parser = Parser.new(@env)
     end
@@ -20,7 +20,7 @@ def start
       locales = @env.locales.map(&:name)
       prompt = "> "
       puts "Detected locales: #{locales.join(', ')}"
-      while (print prompt; input = gets)
+      while (print prompt; input = $stdin.gets)
         begin
           value = @parser.parse(input.chomp).execute
           @env.last_value = value

test/mayl/repl_test.rb

@@ -3,7 +3,7 @@
 module Mayl
   describe Repl do
     before do
-      @repl = Mayl::Repl.new('some/path.yml')
+      @repl = Mayl::Repl.new('test/support')
     end
 
     it 'parses and executes commands' do
@@ -12,7 +12,7 @@ module Mayl
       @baz = stub
       @baz.expects(:execute)
 
-      @repl.expects(:gets).times(3).returns("foo bar\n", "baz lol\n", nil)
+      $stdin.expects(:gets).times(3).returns("foo bar\n", "baz lol\n", nil)
 
       @repl.parser.expects(:parse).with('foo bar').returns @foo
       @repl.parser.expects(:parse).with('baz lol').returns @baz