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def can_use_readline?
not ENV['HOMEBREW_NO_READLINE']
end
require 'debrew/menu'
require 'debrew/raise_plus'
require 'debrew/irb' if can_use_readline?
class Object
include RaisePlus
end
def has_debugger?
begin
require 'rubygems'
require 'ruby-debug'
true
rescue LoadError
false
end if can_use_readline?
end
def debrew(exception, formula=nil)
puts "#{exception.backtrace.first}"
puts "#{Tty.red}#{exception.class.to_s}#{Tty.reset}: #{exception.to_s}"
begin
again = false
choose do |menu|
menu.prompt = "Choose an action: "
menu.choice(:raise) { original_raise exception }
menu.choice(:ignore) { exception.restart }
menu.choice(:backtrace) { puts exception.backtrace; again = true }
menu.choice(:debug) do
puts "When you exit the debugger, execution will continue."
exception.restart { debugger }
end if has_debugger?
menu.choice(:irb) do
puts "When you exit this IRB session, execution will continue."
exception.restart do
# we need to capture the binding after returning from raise
set_trace_func proc { |event, file, line, id, binding, classname|
if event == 'return'
set_trace_func nil
IRB.start_within(binding)
end
}
end
end if can_use_readline?
menu.choice(:shell) do
puts "When you exit this shell, you will return to the menu."
interactive_shell formula
again=true
end
end
end while again
end
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