From: timr <timrandg@...>
Date: 2009-01-05T14:33:57+09:00
Subject: Re: is there a way to get the paths to all previously required files?

Here is a one liner that does it. Thanks for the hint.

>>@file = "/mathn.rb"
>> $:.each{|next_search_path| puts next_search_path + @file if File::exists?(next_search_path + @file)}
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/
1.8/mathn.rb




On Jan 4, 9:03 pm, Rob Biedenharn <R...@AgileConsultingLLC.com> wrote:
> Look at:
> $"                (historic variable)
> $LOADED_FEATURES  (English equivalent)
>
> It's not exactly what you want, but you could combine those with:
> $:
> $LOAD_PATH
>
> To find out where each one came from.  (Assuming, of course, that the  
> LOAD_PATH hasn't been altered since the require happened.)
>
> -Rob
>
> Rob Biedenharn          http://agileconsultingllc.com
> R...@AgileConsultingLLC.com
>
> On Jan 4, 2009, at 11:38 PM, timr wrote:
>
> > Let's say I am in irb and I execute
>
> >>> require 'base64.rb"
> > =>true
>
> > and then I want to know the path to the base64.rb file,
> > are the paths to previously required files stored in a global
> > variable?
>
> > I wan't to do something like:
> >>> $required_files
> > =>['/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/
> > ruby/1.8/base64.rb']
>
> > Anyone?
> > Thanks,
> > Tim
>
> > P.S. I know that I can do shift+cmd+D in text mate and open the file,
> > which obviously requires the path--but this script uses
> > TM_SUPPORT_PATH--and it seems like something that could be more
> > easilly accessed directly from RUBY. At any rate, I would rather be
> > able to do it in irb. Thanks.
>
> > ################From 'open require' command of the RUBY bundle of
> > TextMate######################
> > #!/usr/bin/env ruby
>
> > require "#{ENV['TM_SUPPORT_PATH']}/lib/ui.rb"
> > require "#{ENV['TM_SUPPORT_PATH']}/lib/textmate.rb"
>
> > REQUIRE_RE = /^\s*(?:require|load)\s*(['"])([^'"#]+?)(?:\.rb)?\1[ \t]*
> > $/
>
> > gems_installed = begin
> >                   require 'rubygems'
> >                   true
> >                 rescue LoadError
> >                   false
> >                 end
>
> > requires = if ENV['TM_CURRENT_LINE'].to_s =~ REQUIRE_RE
> >             ["#{$2}.rb"]
> >           else
> >             $stdin.read.scan(REQUIRE_RE).map { |_, path| "#
> > {path}.rb" }
> >           end
> > abort 'No includes found.' if requires.empty?
>
> > file = if requires.size > 1
> >         choice = TextMate::UI.menu(requires) or exit
> >         requires[choice]
> >       else
> >         requires.pop
> >       end
> > dir  = $LOAD_PATH.find { |dir| File.exist? File.join(dir, file) }
> > if not dir and gems_installed and gem_spec =
> > Gem::GemPathSearcher.new.find(file)
> >  dir = File.join(gem_spec.full_gem_path, gem_spec.require_path)
> > end
>
> > if file and dir
> >  dir.sub!(%r{\A\.(?=/|\z)}, ENV['TM_DIRECTORY']) if ENV
> > ['TM_DIRECTORY']
> >  file_path = File.join(dir, file)
> >  puts file_path
> >  TextMate.go_to :file => file_path
> >  exit
> > else
> >  puts "File not found: #{file}"
> > end
>
>