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Rubyslava debugging with_pry

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Debugging with Pry Michal Oláh @michalolah @bonetics
Progammers spend 60% of their time debugging We should pay attention to our workflow
“There are no fully fledged IDEs for Ruby on Rails…” –Agile Web Development with Rails -July 2009
WTF
WTF?
WTF?!
Actually its not that bad
we have tests after all
And puts is a powerfull thing
But what if you meet this guy?
Commands ! binding.pry play whereami edit -c exit ls cd next, previous, skip, breakpoint (debugger)
Demo 1 ! • debugging integration tests ! • fast feedback of what works and what doesn’t
Demo 2 ! • debugging controller action ! • ls, cd ! • inplace code edit and debug with breakpoints ! • edit, breakpoint, whereami, wtf?! ! • debugging with pry-rescue
Plugins and features • pry-debugger (MRI 1.8-1.9) • pry-byebug (MRI 2.0+) • pry-rescue - resque from exceptions in to a pry session • plymounth - jump into a pry session on test failure • pry-rails • help command • pry custom commands
Resources • http://pryrepl.org • http://gaslight.co/blog/i-like-pry-but-dot-dot-dot • http://railscasts.com/episodes/280-pry-with-rails • http://www.youtube.com/watch?v=o90CCPjcIKE • https://github.com/m1k3/rubyslava_pry_demo

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