Question

我需要从远程服务器上的ruby脚本中请求用户输入。我设法通过以下代码使用bash进行了

class ConfirmHandler
  def on_data(command, stream_name, data, channel)
    puts "data received: #{data}"
    if data.to_s =~ /\?$/
      prompt = Net::SSH::Prompt.default.start(type: 'confirm')
      response = prompt.ask "Please enter your response (y/n)"
      channel.send_data "#{response}\n"
    end
  end
end

require 'sshkit'
require 'sshkit/dsl'
include SSHKit::DSL

on '<ssh-server-name>' do |host|
  cmd = <<-CMD
    echo 'Do something?';
    read response;
    echo response=$response
  CMD

  capture(cmd.squish , interaction_handler: ConfirmHandler.new)
end

当我在本地计算机上运行此脚本时，会看到

data received: Do something?
Please enter your response (y/n)
data received: response=y

我尝试将bash CMD代码包装到ruby脚本中：

on '<ssh-server-name>' do |host|
  cmd = <<-CMD
    ruby -e "
      puts 'Do something?';
      require 'open3';
      response = Open3.capture3('read response; echo $response');
      puts 'response=' + response.to_s;
    "
  CMD

  capture(cmd.squish , interaction_handler: ConfirmHandler.new)
end

并获得以下结果：

data received: Do something?
Please enter your response (y/n)
data received: response=["\n", "", #<Process::Status: pid 9081 exit 0>]

我是在SSHKit Github主页上的Interactive commands section上编写上面的代码

如何使用SSKKit在远程服务器上捕获来自ruby脚本的用户响应？

Answer 1

我能够使用以下代码从远程服务器上的ruby脚本捕获用户响应：

# ask_response.rb

puts 'Do something?';
response = `read response; echo $response`;
puts 'response=' + response.to_s;

ask_response.rb是位于远程服务器上的ruby脚本。在本地运行：

on '<ssh-server-name>' do |host|
  capture("ruby ask_response.rb" , interaction_handler: ConfirmHandler.new)
end

如何使用SSHKit从远程服务器请求用户输入？

1 个答案: