58 lines
1.3 KiB
Ruby
58 lines
1.3 KiB
Ruby
class Pry
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class Command::Wtf < Pry::ClassCommand
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match(/wtf([?!]*)/)
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group 'Context'
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description 'Show the backtrace of the most recent exception.'
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options :listing => 'wtf?'
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banner <<-'BANNER'
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Usage: wtf[?|!]
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Show's a few lines of the backtrace of the most recent exception (also available
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as `_ex_.backtrace`). If you want to see more lines, add more question marks or
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exclamation marks.
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wtf?
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wtf?!???!?!?
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# To see the entire backtrace, pass the `-v` or `--verbose` flag.
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wtf -v
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BANNER
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def options(opt)
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opt.on :v, :verbose, "Show the full backtrace"
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end
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def process
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raise Pry::CommandError, "No most-recent exception" unless exception
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output.puts "#{text.bold('Exception:')} #{exception.class}: #{exception}\n--"
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if opts.verbose?
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output.puts with_line_numbers(backtrace)
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else
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output.puts with_line_numbers(backtrace.first(size_of_backtrace))
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end
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end
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private
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def exception
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_pry_.last_exception
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end
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def with_line_numbers(bt)
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Pry::Code.new(bt, 0, :text).with_line_numbers.to_s
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end
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def backtrace
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exception.backtrace
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end
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def size_of_backtrace
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[captures[0].size, 0.5].max * 10
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end
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end
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Pry::Commands.add_command(Pry::Command::Wtf)
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end
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