From: Peter Pk <peterk@...>
Date: 2008-08-19T06:51:18+09:00
Subject: Re: Help with Ruby under cygwin

Replying with my own message.
OK - It seems (guesswork here) that one must unpack the runygems zip 
file "anywhere" and then CD to it's root and do:

 $ ruby ./setup.rb
And it executes a setup program, this succeeds.

Setup.rb however creates a directory called /usr/bin/ruby
so now in cygwin if I get:

 $ ruby
bash: /usr/bin/ruby: is a directory

since /usr/bin is in the path.

How does one get around this?
Take /usr/bin out of the path?
always use "ruby.exe" explicitly?
Configure ruby to put its stuff somewhere else?

???

Peter Pk wrote:
> 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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