Debugging question

Ruby
1

I run this one gem with the command "foo ". I’d like to try
to run it off the foo.rb file so that I can debug it. However, when I
do "ruby path/to/foo.rb " it doesn’t behave in the same way
as "foo ". How do I need to run this program in order to
debug it?

2

maybe first
require ‘rubygems’
then require the file,
maybe run it from within that directory.
maybe do Dir.chdir to it, first, then require.

eggman2001 wrote:

I run this one gem with the command "foo ". I’d like to try
to run it off the foo.rb file so that I can debug it. However, when I
do "ruby path/to/foo.rb " it doesn’t behave in the same way
as "foo ". How do I need to run this program in order to
debug it?

Specifics would be nice, as I don’t quite understand what you’re trying
to do. “run a gem”?

3

so I installed the gem rdig. You run rdig with "rdig " and
I’d like to debug it.

4

eggman2001 wrote:

so I installed the gem rdig. You run rdig with "rdig " and
I’d like to debug it.

gem install ruby-debug
rdebug rdig (maybe)
gl

5

I tried that, but it doesn’t work.

Here’s the error that I’m getting…
C:\InstantRails\ruby_progs\rdig_testing>rdeb
s\rdig_testing\config.rb
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/
6:in initialize': Bad file descriptor - con from C:/InstantRails/ruby/lib/ruby/g by-debug.rb:86:innew’
from C:/InstantRails/ruby/lib/ruby/g
by-debug.rb:86:in `start_client’
from C:/InstantRails/ruby/lib/ruby/g
ebug:87
from C:/InstantRails/ruby/bin/rdebug
from C:/InstantRails/ruby/bin/rdebug

C:\InstantRails\ruby_progs\rdig_testing>

6

checkout the topmost file line.
Maybe you’re trying to run something on a port in use?

eggman2001 wrote:

I tried that, but it doesn’t work.

Here’s the error that I’m getting…
C:\InstantRails\ruby_progs\rdig_testing>rdeb
s\rdig_testing\config.rb
C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/
6:in initialize': Bad file descriptor - con from C:/InstantRails/ruby/lib/ruby/g by-debug.rb:86:innew’
from C:/InstantRails/ruby/lib/ruby/g
by-debug.rb:86:in `start_client’
from C:/InstantRails/ruby/lib/ruby/g
ebug:87
from C:/InstantRails/ruby/bin/rdebug
from C:/InstantRails/ruby/bin/rdebug

C:\InstantRails\ruby_progs\rdig_testing>

7

eggman2001 wrote:

Not quite sure what you mean - sorry. I know very little about the
role that ports play in these situations.

go into the rdig file (find it), then add
require ‘ruby-debug’
debugger

and it should open a breakpoint for you there (run it normal).
GL!
-Roger

8

That worked! Thanks so much :slight_smile:

9

Not quite sure what you mean - sorry. I know very little about the
role that ports play in these situations.