Fix rake tasks to accept arguments in normal bash way; Condense huge backtraces for exceptions

rake_patch.rb (not debugged)

Rake::Application.class_eval do

  def parse_task_string(_)
    args = ARGV.clone
    return args.shift,
      args.reject{|_| _ =~ /^(\w+)=(.*)$/} # clean ENV variables
      .join(' ').presence
  end

  def display_exception_backtrace(ex)
    if options.backtrace
      backtrace = ex.backtrace
    else
      backtrace = Rake::Backtrace.collapse(ex.backtrace)
    end
    trace condense_backtrace(backtrace).join("\n")
  end

  def condense_backtrace(bt)
    lines = ENV['TRACE_LINES']&.to_i || 30
    if bt.count > 50
      new_bt = bt[0..lines/2] +
        ["...#{bt.count - lines} lines hidden..."] +
        bt[-lines/2..-1]
      bt.clear
      bt.concat new_bt
    end
    bt
  end

end

Rake::Task.class_eval do

  alias initialize_origin_for_arguments_patch initialize

  def initialize(*args)
    initialize_origin_for_arguments_patch *args

    # Unwrap arguments list to single argument
    def @actions.each
      super do |action|
        yield(Proc.new do |task, args|
          action.call(task, args.first)
        end)
      end
    end
  end

  def invoke(*args)
    invoke_with_call_chain(args, Rake::InvocationChain::EMPTY)
  end

end