Ruby Debug

[nigelr]

Lachlan Pitts offered at the 25/2 meetup @davekinkead

[parameme]

Yes....yes I did.

Lightning talk on Rubymine (Mac) debugging.

1.9.3 2.0.0 Zeus integration Webserver integration Remote SDK (Vagrant)

(researching) Alternate interpreters (JRuby, Rubinius) Gems Rake tasks CSS JavaScript CoffeeScript RubyMotion Coverage Profiling DTrace Extensions?

[mattconnolly]

I'm happy to do a talk on Rubymine debugging too. Another topic of great interest to me is the dtrace integration in ruby 2, I'll see if I can put together a demo on that too...

[nigelr]

Hi Lachlan & Matt, can you please confirm you are ready to speak this Monday on this subject...

[mattconnolly]

Yep, I've already started preparations.

On 16/04/2013, at 4:43 PM, Nigel Rausch notifications@github.com wrote:

Hi Lachlan & Matt, can you please confirm you are ready to speak this Monday on this subject...

— Reply to this email directly or view it on GitHub.

[parameme]

Also started preparing.

[mattconnolly]

I've got some Ruby 2.0.0 dtrace examples coming. Lachlan, what are you preparing?

[parameme]

Removed for formatting see below.

[mattconnolly]

My rubymine stuff was pretty light. Looks like you'll more than cover that.

I might focus on DTrace with some examples. I've refactored the DTraceToolkit examples to work with ruby-2.0.0 new built in DTrace probes, and can run through some examples of that.

Sound good?

[parameme]

Hey Matt,

---

Sharpen your tools - Debugger

• Why a Debugger?
  • Error Classes
• Where a Debugger helps
  • Visualize the (pre-exceptional) internal state of a running routine.
• Shouldn't Exceptions/Unit Tests/[D]Trace be Enough?
• ruby-debug Ecosystem
• Pry
• RubyMine Debugger (ruby)
  • Environmental breakpoints
  • Conditional breakpoints
  • REPL (Read Eval Print Loop)
  • Pros
    • NO CODE CHANGES (eg. interspersed puts / log statements etc)
    • Visualize/Navigate complex structures
    • Evaluate in context
• RubyMine Debugger (rails + pow)
  • Resolved mediation
• RubyMine Debugger (javascript)
• RubyMine Debugger (coffeescript)
• RubyMine Debugger (rubymotion)
• IRL (In Real Life)
  • Show an example of debugging an issue with meta_request (live code)
  • Show an example of resolving a multi-thread issue <-- {TBA}
• Future Directions
  • How do we isolate (manually or automatically) a particular set of request streams from
  • set of addresses (geo-route)
  • a class of users
  • a specific request type resolving to
  • a code-[version] state
  • a data-[version] state allowing diversion to a
    • "live"/"sandbox" debugger - even in production?
• Questions?

---

I will be very interested in the Dtrace stuff....

Regards,

Lachlan Pitts

On 17 April 2013 15:22, Matt Connolly notifications@github.com wrote:

I've got some Ruby 2.0.0 dtrace examples coming. Lachlan, what are you preparing?

— Reply to this email directly or view it on GitHubhttps://github.com/BrisRuby/meetups/issues/9#issuecomment-16487403 .[image: Web Bug from https://github.com/notifications/beacon/ggsj-gr7FuxyexgqmMd98Ylrv3p7_7hW_tmo0LyqJbpmnYG-jmflQ0TVOvFSAPQV.gif]

[parameme]

Sounds grand.

On 17/04/2013, at 17:05, Matt Connolly notifications@github.com wrote:

My rubymine stuff was pretty light. Looks like you'll more than cover that.

I might focus on DTrace with some examples. I've refactored the DTraceToolkit examples to work with ruby-2.0.0 new built in DTrace probes, and can run through some examples of that.

Sound good?

— Reply to this email directly or view it on GitHubhttps://github.com/BrisRuby/meetups/issues/9#issuecomment-16490116 .[image: Web Bug from https://github.com/notifications/beacon/ggsj-gr7FuxyexgqmMd98Ylrv3p7_7hW_tmo0LyqJbpmnYG-jmflQ0TVOvFSAPQV.gif]

[nigelr]

Thank you Matt & Lachlan for your talks