Class: RemoteRuby::TmpFileAdapter

Inherits:
ConnectionAdapter show all
Defined in:
lib/remote_ruby/tmp_file_adapter.rb

Overview

An adapter to expecute Ruby code on the local machine inside a temporary file

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(working_dir: Dir.pwd) ⇒ TmpFileAdapter

Returns a new instance of TmpFileAdapter.



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# File 'lib/remote_ruby/tmp_file_adapter.rb', line 13

def initialize(working_dir: Dir.pwd)
  super
  @working_dir = working_dir
end

Instance Attribute Details

#working_dir ⇒ Object (readonly)

Returns the value of attribute working_dir.



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# File 'lib/remote_ruby/tmp_file_adapter.rb', line 11

def working_dir
  @working_dir
end

Instance Method Details

#connection_name ⇒ Object 



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# File 'lib/remote_ruby/tmp_file_adapter.rb', line 43

def connection_name
  "#{ENV.fetch('USER', nil)}@localhost:#{working_dir}> "
end

#open(code, stdin, stdout, stderr) ⇒ Object 



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# File 'lib/remote_ruby/tmp_file_adapter.rb', line 18

def open(code, stdin, stdout, stderr)
  result = nil

  stdin = RemoteRuby::CompatIOReader.new(stdin)
  stdout = RemoteRuby::CompatIOWriter.new(stdout)
  stderr = RemoteRuby::CompatIOWriter.new(stderr)

  with_temp_file(code) do |filename|
    pid = Process.spawn(
      command(filename),
      in: stdin.readable,
      out: stdout.writeable,
      err: stderr.writeable
    )

    _, status = Process.wait2(pid)
    raise "Process exited with code #{status}" unless status.success?

    [stdin, stdout, stderr].each(&:join)

    result = File.binread(filename)
  end
  result
end