ひとつの入力を複数のシェルで実行する

gistfile1.rb

#!/usr/bin/env ruby

require 'curses'
require 'pty'
require 'landescape'

class Terminal < Struct.new(:window, :stdout, :stdin, :pid)
  def wait
    Process.detach(pid).join
  end
end

Curses.noecho

window = Curses.stdscr
window.addstr 'Landescape example for curses'
window.refresh

terminal_width   = 100
terminal_height  = 25
terminal_padding = 2

terminals = 2.times.with_object([]) {|t, memo|
  height   = terminal_height + terminal_padding
  width    = terminal_width + terminal_padding

  terminal = window.subwin(height, width, height * t + 10, 10)
  terminal.scrollok true

  memo << Terminal.new(terminal, *PTY.getpty('TERM=vt100 bash --noprofile'))
}

terminals.each do |terminal|
  terminal.stdin.puts <<-SHELL
    tput cols 100
    tput lines 25
    clear
  SHELL

  Landescape.run terminal.stdout, terminal.window
end

Thread.fork do
  while char = window.getch
    terminals.each do |t|
      t.stdin.putc char
    end
  end
end

terminals.each &:wait

Curses.close_screen