Module: RemoteSh::FileSyncer

Defined in:
lib/remote_sh/file_syncer.rb

Class Method Summary collapse

Class Method Details

.do_after_timeout(timeout, &block) ⇒ Object 



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# File 'lib/remote_sh/file_syncer.rb', line 50

def do_after_timeout(timeout, &block)
  @thread&.kill

  @thread = Thread.new do
    sleep(timeout)
    block.()
  end
end

.start(host, host_path, ignored_files) ⇒ Object 



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# File 'lib/remote_sh/file_syncer.rb', line 12

def start(host, host_path, ignored_files)
  local_path = WorkspaceConfiguration::WOKRING_DIR

  RsyncHelper.up(local_path, host_path, host, ignored_files)

  mutex = Mutex.new

  Thread.new do
    Filewatcher.new("#{local_path}/**/{.[^\.]*,*}", interval: 1).watch do |_changes|
      if @sync_side == :client || @sync_side.nil?
        mutex.synchronize do
          @sync_side = :clientA
          begin
            RsyncHelper.up(local_path, host_path, host, ignored_files)
            @up_requested = false
          rescue
            @up_requested = true
          end
          do_after_timeout(1) do
            begin
              RsyncHelper.up(local_path, host_path, host, ignored_files) if @up_requested
            rescue
            end

            mutex.synchronize do
              @sync_side = nil
            end
          end
        end
      end
    end
  end

  Thread.new do
    start_server(mutex, local_path, host_path, host, ignored_files)
  end
end

.start_server(mutex, local_path, host_path, host, ignored_files) ⇒ Object 



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# File 'lib/remote_sh/file_syncer.rb', line 59

def start_server(mutex, local_path, host_path, host, ignored_files)
  pid_filename = "#{PID_FOLDER}/#{local_path.gsub("/", "__")}_syncing"
  socket_file = "#{pid_filename}_socket"

  path = socket_file.split("/")[...-1].join("/")

  `ssh #{host} "rm -f #{socket_file}"`
  `ssh #{host} "mkdir -p #{path}"`

  Thread.new do
    ruby_code = "      require \"net_http_unix\"\n      require \"filewatcher\"\n\n      Thread.new do\n        Filewatcher.new(\"\#{host_path}/**/{.[^\\.]*,*}\", interval: 1).watch do |_changes|\n          request = Net::HTTP::Get.new(\"/request_sync\")\n          NetX::HTTPUnix.new(\"unix://\" + \"\#{socket_file}\").request(request)\n        end\n      end\n\n      loop do\n        request = Net::HTTP::Get.new(\"/ping\")\n        NetX::HTTPUnix.new(\"unix://\" + \"\#{socket_file}\").request(request)\n        sleep(3)\n      end\n    RUBY\n\n    Open3.capture3(\"ssh -q \#{host} 'ruby -e \\\"\#{ruby_code}\\\"'\")\n  end\n\n  UNIXServer.open(socket_file) do |ssocket|\n    SshHelper.forward_local_socket(host, socket_file)\n\n    server = WEBrick::HTTPServer.new(\n      DoNotListen: true,\n      Logger: WEBrick::Log.new(\"/dev/null\"),\n      AccessLog: [],\n    )\n    server.listeners << ssocket\n\n    server.mount_proc \"/request_sync\" do |_req, res|\n      if @sync_side == :server || @sync_side.nil?\n        mutex.synchronize do\n          @sync_side = :server\n          begin\n            RsyncHelper.down(local_path, host_path, host, ignored_files)\n            @down_requested = false\n          rescue\n            @down_requested = true\n          end\n          do_after_timeout(1) do\n            begin\n              RsyncHelper.down(local_path, host_path, host, ignored_files) if @down_requested\n            rescue\n            end\n            mutex.synchronize { @sync_side = nil }\n          end\n        end\n      end\n\n      res.body = \"request_sync\"\n    end\n\n    server.mount_proc \"/ping\" do |_req, res|\n      res.body = \"ping\"\n    end\n\n    trap(\"INT\") { server.shutdown }\n\n    server.start\n  end\nensure\n  SshHelper.close_local_socket(host, socket_file)\n  File.unlink(socket_file)\nend\n".gsub('"', '\"')