为什么rake默认禁用警告？

Question

我很惊讶地发现rake默认禁用警告：

  def broken_code
    path = '/tmp/foo'

    # create empty file
    File.open(path, 'w')

    # when warnings are enabled you get a warning here- File#new does not take a block
    File.new(path) do |f|
      puts "never get here..."
    end
  end

  task :no_warnings do |t|
    broken_code
  end

  task :warnings do |t|
    $VERBOSE = 1
    broken_code
  end

为什么他们被禁用？除了在代码的早期设置VERBOSE=1之外，是否有一种简单的方法来启用它们？

Answer 1

它对我有用：

# Rakefile
task :foo do |t|
  File.new {}
end

结果：

$ rake foo
(in /tmp)
/tmp/Rakefile:2: warning: File::new() does not take block; use File::open() instead
rake aborted!