From: Erik Veenstra <erikveen@...>
Date: 2006-07-05T18:28:50+09:00
Subject: Re: ANN: RubyGems 0.9.0 Release

> > I did some more testing with more gems on different
> > platforms. The conclusion is twofold: a) The problem
> > occurred with RubyGems 0.8.11 as well (in combination with
> > RubyScript2Exe 0.4.4) and b) it doesn't occur with all gems
> > (e.g. sqlite-ruby is a problem, actionmailer isn't).
>
> Perhaps sqlite-ruby is an old format gem? It seems to be the

It seems to be the /what/?... Where is part two?... This is
where I expected the most important part of the answer... ;]

> > Which libraries are required conditionally by RubyGems?
>
> I think zlib and yaml are the only others for making require
> work. It is difficult to tell with just grep.

I used a different kind of grep, called regexp.rb. It doesn't
show the line on which a pattern occurs, but it only shows the
matching part of the line. It's listed below. I used this
regexp.rb to find all libraries that /could/ be required by
RubyGems, both conditionally and unconditionally, listed in
list1.

The second list, list2, are the libraries that are actually
required after doing a "require 'rubygems'".

The differences between these lists are conditionally required
files (indicated with "-") and indirectly required files
(indicated with "+").

I'm concerned about the "-" part... ;]

(The lists may not be complete.)

Suggestions? Ideas?

gegroet,
Erik V. - http://www.erikveen.dds.nl/

----------------------------------------------------------------

 $ find /usr/local/lib/ruby/site_ruby/1.8/rubygems*/ -type f -exec cat
{} \; | ruby regexp.rb "\brequire[\(\s]*['\"]([^'\"]*)['\"]" | sort |
uniq > list1

 $ ruby -rubygems -e 'puts $".sort.join("\n")' | sed 's/\.[^\.]*$//g' >
list2

 $ diff -ur list[12]
 --- list1       2006-07-05 11:13:14.086994100 +0200
 +++ list2       2006-07-05 11:13:16.440354600 +0200
 @@ -1,43 +1,19 @@
 -digest/md5
 +date/format
 +digest
  digest/sha2
 -fileutils
 -find
  forwardable
 -md5
 -net/ftp
 -net/http
 -net/https
 -openssl
 -optparse
 -pathname
 +parsedate
 +rational
  rbconfig
 -rdoc/rdoc
 +rbconfig/datadir
  rubygems
 -rubygems/command
 -rubygems/dependency_list
 -rubygems/format
 -rubygems/format.rb
 -rubygems/gem_commands
 +rubygems/custom_require
  rubygems/gem_openssl
 -rubygems/incremental_fetcher
 -rubygems/installer
 -rubygems/old_format
 -rubygems/open-uri
 -rubygems/package
 +rubygems/rubygems_version
  rubygems/security
  rubygems/source_index
  rubygems/specification
  rubygems/user_interaction
  rubygems/version
 -socket
 -sources
 -stringio
 -tempfile
 -test/unit/ui/console/testrunner
  time
 -timeout
 -uri
 -x
 -yaml
 -yaml/syck
 -zlib
 +ubygems

----------------------------------------------------------------

 chars           = '^\s\r\n\`\!\(\)\[\]\{\}\<\> \,\.\/\?\\\|\=\;\:\"'

 chars11         = chars + "'"

 chars21         = chars + "'"
 chars22         = chars
 chars23         = chars + "'"

 chars31         = '\w\s\r\n'

 string  = ARGV.shift

 regexp =
 case string
 when string.to_i.to_s   then /(^\s*#{(["[^\\s]+"] *
string.to_i).join("\\s+")}\r*$)/
 when "-word"            then /([#{chars11}]+)/
 when "-word2"           then
/([#{chars21}]([#{chars22}]*[#{chars23}])?)/
 when "-word3"           then /([A-Za-z]+)/
 when "-text"            then /([#{chars31}]+)/
 when "-file"            then /(\w[\w\.\-]*)/
 when "-path"            then /(\w[\w\.\-\/\\\\]*)/
 when "-email"           then /(\w[\w\-\.]+@[\w\-\.]+\w)/
 when "-url"             then
/(\w+:\/\/[\w\.\-]+(:\d*)?\/[\w\.\-\/\#\?\=\%]*)/
 when "-ip"              then /(\d+\.\d+\.\d+\.\d+)/
 when "-mac"             then
/(([0-9A-Fa-f]{2}[:\.\-]){5}[0-9A-Fa-f]{2})/
 when "-print"           then /([\w
\t\r\n\`\~\!\@\#\$\%\^\&\*\(\)\-\+\=\[\]\{\}\;\:\'\"\,\.\/\<\>
\?\\\|]+)/
 when "-noprint"         then /([^\w
\t\r\n\`\~\!\@\#\$\%\^\&\*\(\)\-\+\=\[\]\{\}\;\:\'\"\,\.\/\<\>
\?\\\|]+)/
 when "-diff"            then /(^[\-\+]([^\-\+].*)?)/
 when "-md5"             then /([A-Za-z0-9]{32})/
 when "-quote"           then /("[^"]*")/
 when "-mixedquote"      then /(['"][^'"]*['"])/
 else
   Regexp.new(string)
 end

 parse =
 lambda do |f|
   while (line = f.gets)
     line.chomp.scan(regexp).each do |a|
       puts a[0]
     end
   end
 end

 if ARGV.empty?
   parse.call($stdin)
 else
   ARGV.each do |file|
     File.open(file) do |f|
       parse.call(f)
     end
   end
 end

----------------------------------------------------------------