Module: Debrew

Extended by:
Mutex_m, Predicable
Defined in:
Library/Homebrew/debrew.rb

Defined Under Namespace

Modules: Formula, Raise Classes: Menu

Constant Summary collapse

Ignorable = 
Module.new

Class Attribute Summary collapse

Class Method Summary collapse

Methods included from Predicable

attr_predicate

Class Attribute Details

.debugged_exceptions ⇒ Object (readonly)

Returns the value of attribute debugged_exceptions


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# File 'Library/Homebrew/debrew.rb', line 84

def debugged_exceptions
  @debugged_exceptions
end

Class Method Details

.debrew ⇒ Object 


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# File 'Library/Homebrew/debrew.rb', line 87

def self.debrew
  @active = true
  Object.send(:include, Raise)

  begin
    yield
  rescue SystemExit
    original_raise
  rescue Exception => e # rubocop:disable Lint/RescueException
    debug(e)
  ensure
    @active = false
  end
end

.debug(e) ⇒ Object 


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# File 'Library/Homebrew/debrew.rb', line 102

def self.debug(e)
  original_raise(e) unless active? &&
                           debugged_exceptions.add?(e) &&
                           try_lock

  begin
    puts e.backtrace.first.to_s
    puts Formatter.error(e, label: e.class.name)

    loop do
      Menu.choose do |menu|
        menu.prompt = "Choose an action: "

        menu.choice(:raise) { original_raise(e) }
        menu.choice(:ignore) { return :ignore } if e.is_a?(Ignorable)
        menu.choice(:backtrace) { puts e.backtrace }

        if e.is_a?(Ignorable)
          menu.choice(:irb) do
            puts "When you exit this IRB session, execution will continue."
            set_trace_func proc { |event, _, _, id, binding, klass| # rubocop:disable Metrics/ParameterLists
              if klass == Raise && id == :raise && event == "return"
                set_trace_func(nil)
                synchronize { IRB.start_within(binding) }
              end
            }

            return :ignore
          end
        end

        menu.choice(:shell) do
          puts "When you exit this shell, you will return to the menu."
          interactive_shell
        end
      end
    end
  ensure
    unlock
  end
end