From: Peter Pk <peterk@...>
Date: 2008-08-19T01:34:01+09:00
Subject: Re: Help with Ruby under cygwin

Robert Klemme wrote:
>> I am not having this problem with anything else and so I am first asking
>> for help here since I expect the cygwin people will turn me to this
>> forum in the end in any case.

I guess I will ask myself - this is long but complete :)

If this is the wrong place to post this let me know.
I *have* looked about fairly extensively for some form of coherant and 
coplete doc or howto but they are all vague and I have seen numerous 
postings that others have problems.  If I get it figured out I will post 
my explicit cleaned up instructions somewhere so others with no ruby 
experience whatsoever can repeat the process easily.

GOAL I want to get ruby and Rake up on cygwin. windows XP pro sp2 so I 
can evaluate rake as the "make and ant" killer and maybe use it as our 
primary cross platform build system. AND also to create an explicit set 
of non-vague repeatable sitructions for others to do so.

I am following the "pickaxe book" bit on getting started.

**** So far

I downloaded and installed cygwin "fresh" as an administrator and 
included the ruby package "1.8.7-p72-1". (latest)
the command ruby is found from the bash shell after installation.

~$ which ruby
/usr/bin/ruby

There is no RUBYOPT in my environment variables.

~$ echo X $RUBYOPT X
X X

from a cygwin bash shell.

~$ ruby
(now in ruby shell)
puts "xxx"
(control D)
xxx
~$

The interpreter seems to work.

I downloaded a copy of "OneClickInstall to get that version as a 
reference and unpacked it so I could get the "samples", I did not run 
it's ruby and removed it from the path it installed so as not to 
conflict with cygwin.  I also removed the RUBYOPT environment variable 
it installed, closed and re-opened the bash shell to purge it's cache, 
then:

~$ echo X $RUBYOPT X
X X

I found the "samples" directory from the one click install and found 
eval.rb.

~$ cd /cygdrive/c/ruby/samples/RubySrc-1.8.6-p111/sample$ ls eval.*
/cygdrive/c/ruby/samples/RubySrc-1.8.6-p111/sample$ ls eval.*
eval.rb

from bash:

/cygdrive/c/ruby/samples/RubySrc-1.8.6-p111/sample$ ruby ./eval.rb
ruby: no such file to load -- ubygems (LoadError)

Ok I saw several places one had to install "rubygems" in "ths customary 
way" ok so I guessed what the "customary way" is,
I downloaded. rubygems-0.8.11.zip
It unpacks to a directory ./rubygems-0.8.11/*

Ok where do I put it? in /usr/lib/rubygems-0.8.11 ??
I tried this
(this did not get rid of the load error)
I renamed to to /usr/lib/ruby
(this did not get rid of the load error)

where do I go from here:

(the objective here is to expand this into an explicit step by step set 
of instructions for getting ruby and rake set up under cygwin-XP

a - so I can do it to evaluate rake as a "make and ant killer"
b - so others can repeat this process without needing to ask questions
    to set up their machines :)

Peter K.
-- 
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