From: Robert Klemme <shortcutter@...>
Date: 2009-03-26T16:51:22+09:00
Subject: Re: : HOWTO start irb on a different object

2009/3/25 Jeremy Henty <onepoint@starurchin.org>:
> On 2009-03-24, Robert Klemme <shortcutter@googlemail.com> wrote:
>> On 24.03.2009 17:25, Jeremy Henty wrote:
>>> ... I can put an .irbrc  in my application directory that makes irb
>>> start up in the context of an application object.
>>
>> But wouldn't you have to start irb then with either
>>
>> HOME=. irb
>>
>> or with other options in order to make it read the local .irbrc?
>
> No,  because irb  automatically  looks  for a  .irbrc  in the  current
> working directory as well as in $HOME.

I tested that but my versions apparently do not:

08:50:08 ~$ cd /tmp
08:50:10 tmp$ echo 'puts 123' > .irbrc
08:50:16 tmp$ irb
Ruby version 1.8.7
irb(main):001:0> exit
08:50:24 tmp$ irb19
Ruby version 1.9.1
irb(main):001:0> exit

I also checked that there are no errors in my ~/.irbrc

08:50:35 tmp$ ruby19 ~/.irbrc
Ruby version 1.9.1
08:50:45 tmp$ cat ~/.irbrc

puts "Ruby version #{RUBY_VERSION}"

require 'irb/completion'
08:51:29 tmp$

And irb is not aliased

08:52:29 tmp$ type -a irb irb19
irb is /usr/bin/irb
irb is /bin/irb
irb19 is /opt/bin/irb19
08:53:20 tmp$

What am I missing?

>> Btw, if you can make IRB read a "local" .irbrc already, then you can
>> as well place code in there like
>>
>> application = whatever_initialization()
>> irb application
>> exit
>
> That doesn't work: "load error: /tmp/user/jeremy/.irbrc NoMethodError:
> undefined   method  `irb'  for   main:Object".   Commands   like  "irb
> application" only work after  irb starts its read-eval-print loop, and
> it does  that *after* it  loads the config  file.  (I agree  that this
> trick would make my hack redundant if it did work.)

Good point.

Kind regards

robert

-- 
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