inf-ruby buffer doesn't get response

[stardiviner]

When I open inf-ruby buffer and switch to it with [C-c C-s].
input puts "hi".
The process doesn't give response with anything.

Is there a way to debug this?

I tried with emacs -Q and emacs -q.
And load inf-ruby.
repeat upper same steps, still no response.

[dgutov]

Works for me. Are you using the plain irb as interpreter?

Maybe try removing everything from your .irbrc, or edebug through ruby-send-definition.

[stardiviner]

@dgutov I checked out Emacs debug manual, https://www.gnu.org/software/emacs/manual/html_node/eintr/Debugging.html#Debugging

I tried some of them, (because I can't understand all of them)
like debug-on-quit, edebug-defun, eval and to next stop. etc.

So can you show more details about how to debug my issue?

[dgutov]

So can you show more details about how to debug my issue?

Not much. I don't have any specific ideas about what might be going wrong on your system. So you can try to walk through the execution of ruby-send-definition and understand what's going on (jump into ruby-send-region, and so on).

Note that you still haven't responded to the rest of my previous message.

[dgutov]

http://www.gnu.org/software/emacs/manual/html_node/elisp/Using-Edebug.html
https://www.gnu.org/software/emacs/manual/html_node/eintr/edebug.html#edebug

[stardiviner]

I have not set .irbrc file.

[stardiviner]

And what is plain irb ? (with out custom configuration on irb?). Yes. I have not set any special on irb.

[dgutov]

Okay. What's your OS and version of Emacs?

[stardiviner]

Ubuntu 14.04 (x86_64), Emacs version: 24.3.50.1

[MgaMPKAy]

I came across a similar problem. Now, I start irb with --inf-ruby-mode.

[dgutov]

@MgaMPKAy Interesting. What's your Ruby version?

[MgaMPKAy]

$ ruby -v
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-linux]

$ irb -v
irb 0.9.6(09/06/30)

Actually, I add IRB.conf[:PROMPT_MODE] = :INF_RUBY to ~/.irbrc.

[stardiviner]

Right, append option --inf-ruby-mode solved my issue.

[stardiviner]

@MgaMPKAy thanks

[dgutov]

@stardiviner @MgaMPKAy How do your prompts look, without that option?

Does --noreadline help, instead?

Continuation prompts, which --inf-ruby-mode disables, look quite useful to me.

[stardiviner]

Yes, --noreadline helps, without --inf-ruby-mode.

[dgutov]

Great. I see no reasons not to include this flag, then.

[stardiviner]

@dgutov I got this problem again on console-rails.
When I run command inf-ruby-console-auto, and it raise up the prompt head :001>. But it suspended when I execute statement puts "hi".
I have tested without my init files. with emacs -q and load inf-ruby with (load "~/.emacs.d/el-get/inf-ruby/inf-ruby.el").
My Emacs version: 24.3.50.1
System: Ubuntu Linux x86_64
Rails version: 4.1.4
Use RVM.

[dgutov]

Have you tried putting

IRB.conf[:USE_READLINE] = nil

into your ~/.irbrc?

[stardiviner]

@dgutov Thanks, it's solved.
And it's false, not nil.
I think this should be put in README as FAQ.

[dgutov]

Doesn't it work with nil? That's the value the doc suggests: http://www.ruby-doc.org/stdlib-2.0/libdoc/irb/rdoc/IRB.html#module-IRB-label-Configuration

I think this should be put in README as FAQ.

Ok, I will. Of course, if someone would actually find out the cause of the problem you're having, they might offer a better solution.

[stardiviner]

@dgutov No, not work with nil. I have tested.

[dgutov]

I see.

I think this should be put in README as FAQ.

Not as FAQ, but it's in the README now.