[Eric] eric4 and ruby

[Detlev Offenbach]

Ok, I think I understand the problem. The eric debugger backend is assigning 
its own handler for stderr and stdout in order to communicate their output 
back to the frontend (it is what you would see in the shell window). By your 
reopening you take stderr away from it and that causes the issue later on.

Please try it with disabled stderr redirection. You may do this on a project 
basis (Project->Debugger->Debugger Properties) or more general via the 
configuration dialog, Ruby Debugger page.

Regards,
Detlev

On Monday 26 November 2012, 15:40:56 Josep Ferrandiz wrote:

Detlev,


I have attached the file and have been able to isolate the lines that cause the 
problem:
$stderr.reopen("/dev/null", "w") and $stderr.sync = true.
They are in the function add_R_lib() that turns off $stderr while an R library 
is loaded that generates a bunch of warnings when loaded.
Thanks
Josep


 
Josep M. Ferrandiz

From: Detlev Offenbach <detlev at die-offenbachs.de>
To: eric at riverbankcomputing.com; Josep Ferrandiz <josep_ferrandiz at yahoo.com> 
Sent: Monday, November 26, 2012 9:48 AM
Subject: Re: [Eric] eric4 and ruby



Can you send the script, that causes this issue. I might look at it (haven't 
used the Ruby debugger for years now).
 
Detlev

On Sunday 25 November 2012, 23:36:48 Josep Ferrandiz wrote:

Hello,


I am using Eric4 4.4.18 (r4127) with Ruby 1.8.7.


If I run a single ruby file on the command line in the Terminal view,
user at ubuntu:~/Code/ruby/RApps$ ./foo.rb
the file executes with no problem.


But if I run the same file through Eric's Run Script I get:


ruby 1.8.7 (2011-06-30) [i686-linux] on ubuntu, No Qt-Version
>>> /usr/share/eric/modules/DebugClients/Ruby/DebugClientBaseModule.rb:172:in 
`unhandled_exception': private method `sub' called for nil:NilClass 
(NoMethodError)
from /usr/share/eric/modules/DebugClients/Ruby/DebugClientBaseModule.rb:343:in 
`handleLine'
from /usr/share/eric/modules/DebugClients/Ruby/AsyncIO.rb:73:in `readReady'
from /usr/share/eric/modules/DebugClients/Ruby/DebugClientBaseModule.rb:619:in 
`eventLoop'
from /usr/share/eric/modules/DebugClients/Ruby/DebugClientBaseModule.rb:595:in 
`interact'
from 
/usr/share/eric/modules/DebugClients/Ruby/DebugClientBaseModule.rb:1172:in 
`main'
from /usr/share/eric/modules/DebugClients/Ruby/DebugClient.rb:44


in the interactive shell.


It also looks like the ruby debugger is not working. 


Any suggestions?
 
Josep M. Ferrandiz


-- 
Detlev Offenbach
detlev at die-offenbachs.de





-- 
Detlev Offenbach
detlev at die-offenbachs.de
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