From: nobu.nokada@...
Date: 2002-04-19T14:46:51+09:00
Subject: Re: recursive require warning...

Hi,

At Fri, 19 Apr 2002 12:28:10 +0900,
Phil Tomson wrote:
> >> Is it possible that we could have some sort of warning message when this 
> >> happens, something like: "Warning: recursive require slave.rb line 3"
> >
> >It's easy, but really desirable in common?
> 
> It would have made it much easier to find the problem on Windows in this 
> case.  I didn't realize that the file was requireing itself (slave.rb) 
> instead of the Slave.rb in the other directory.

Sometimes recursive require is used intently.  Actually, once
it was prohibited, complained as expected.

You can check conflicts with a tool instead.

#! /usr/bin/ruby
require 'getopts'

getopts("id")
icase = $OPT_i
default = $OPT_d
paths = ARGV
paths.concat($:) if default

dirs = {}
files = {}
paths.each do |path|
  path = "." if path.empty?
  ipath = icase ? path.downcase : path
  next if dirs[ipath]
  dirs[ipath] = true
  Dir.glob(path+"/**/*.rb") do |rb|
    f = rb[(path.length+1)..-1]
    f.downcase! if icase
    (files[f] ||= []) << path
  end
end
files.reject! {|f, path| path.size == 1}

w = files.keys.collect {|f| f.length}.max
files.sort.each {|f, path| printf("%-*s %s\n", w, f, path.join(" "))}

-- 
Nobu Nakada