13529570178

Committed 25 Feb 2025 07:40PM UTC coverage: 90.599% (-2.3%) from 92.926%

Build # 13529570178

Build Type

push

github

Committed by

Nu-hin

Commit Message

Remove stream splitter. Store the result in the code file

Run Details

20 of 32 new or added lines in 6 files covered. (62.5%)

1 existing line in 1 file now uncovered.

877 of 968 relevant lines covered (90.6%)

60.69 hits per line

Source File
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20.69

/lib/remote_ruby/ssh_adapter.rb

# frozen_string_literal: true

require 'net/ssh'
require 'remote_ruby/pipes'

module RemoteRuby
  # An adapter for executing Ruby code on a remote host via SSH
  class SSHAdapter < ConnectionAdapter
    UnableToExecuteError = Class.new(StandardError)

    attr_reader :host, :user, :config, :working_dir

    def initialize(host:, user: nil, working_dir: nil)
      super
      @host = host
      @working_dir = working_dir
      @config = Net::SSH.configuration_for(@host, true)
      @user = user || @config[:user]
    end

    def open(code)
      Net::SSH.start(host, user, config) do |ssh|
        with_temp_file(code, ssh) do |fname|
          Pipes.with_pipes do |p|
            t = Thread.new do
              run_code(ssh, fname, p.in_r, p.out_w, p.err_w)
              get_result(ssh, fname, p.res_w)
            end

            yield p.in_w, p.out_r, p.err_r, p.res_r
            t.join
          end
        end
      end
    end

    def run_code(ssh, fname, stdin_r, stdout_w, stderr_w)
      ssh.open_channel do |channel|
        channel.exec("cd '#{working_dir}' && ruby #{fname}") do |ch, success|
          raise UnableToExecuteError unless success

          ssh.listen_to(stdin_r) do |io|
            data = io.read_nonblock(4096)
            ch.send_data(data)
          rescue EOFError
            ch.eof!
          end

          ch.on_data do |_, data|
            stdout_w << data
          end

          ch.on_extended_data do |_, _, data|
            stderr_w << data
          end

          ch.on_close do |_|
            stdout_w.close
            stderr_w.close
          end
        end
      end.wait
    end

    def get_result(ssh, fname, res_w)
      ssh.open_channel do |channel|
        channel.exec("cat #{fname}") do |ch, success|
          raise UnableToExecuteError unless success

          ch.on_data do |_, data|
            res_w << data
          end

          ch.on_close do |_|
            res_w.close
          end
        end
      end.wait
    end

    def connection_name
      "#{user}@#{host}:#{working_dir || '~'}> "
    end

    def with_temp_file(code, ssh)
      fname = String.new
      code_channel = ssh.open_channel do |channel|
        channel.exec('f=$(mktemp remote_ruby.rb.XXXXXX) && cat > $f && echo $f') do |ch, success|
          raise UnableToExecuteError unless success

          ch.on_data do |_, data|
            fname << data
          end

          ch.send_data(code)
          ch.eof!
        end
      end

      code_channel.wait

      yield fname
    ensure
      ssh.exec!("rm #{fname}")
    end
  end
end

1	# frozen_string_literal: true
2
3	require 'net/ssh'	16✔
4	require 'remote_ruby/pipes'	16✔
5
6	module RemoteRuby	16✔
7	# An adapter for executing Ruby code on a remote host via SSH
8	class SSHAdapter < ConnectionAdapter	16✔
9	UnableToExecuteError = Class.new(StandardError)	16✔
10
11	attr_reader :host, :user, :config, :working_dir	16✔
12
13	def initialize(host:, user: nil, working_dir: nil)	16✔
14	super	×
15	@host = host	×
16	@working_dir = working_dir	×
17	@config = Net::SSH.configuration_for(@host, true)	×
18	@user = user \|\| @config[:user]	×
19	end
20
21	def open(code)	16✔
22	Net::SSH.start(host, user, config) do \|ssh\|	×
23	with_temp_file(code, ssh) do \|fname\|	×
24	Pipes.with_pipes do \|p\|	×
25	t = Thread.new do	×
26	run_code(ssh, fname, p.in_r, p.out_w, p.err_w)	×
NEW 27	get_result(ssh, fname, p.res_w)	×
28	end
29
NEW 30	yield p.in_w, p.out_r, p.err_r, p.res_r	×
UNCOV 31	t.join	×
32	end
33	end
34	end
35	end
36
37	def run_code(ssh, fname, stdin_r, stdout_w, stderr_w)	16✔
38	ssh.open_channel do \|channel\|	×
39	channel.exec("cd '#{working_dir}' && ruby #{fname}") do \|ch, success\|	×
40	raise UnableToExecuteError unless success	×
41
42	ssh.listen_to(stdin_r) do \|io\|	×
43	data = io.read_nonblock(4096)	×
44	ch.send_data(data)	×
45	rescue EOFError
46	ch.eof!	×
47	end
48
49	ch.on_data do \|_, data\|	×
50	stdout_w << data	×
51	end
52
53	ch.on_extended_data do \|_, _, data\|	×
54	stderr_w << data	×
55	end
56
57	ch.on_close do \|_\|	×
58	stdout_w.close	×
59	stderr_w.close	×
60	end
61	end
62	end.wait
63	end
64
65	def get_result(ssh, fname, res_w)	16✔
NEW 66	ssh.open_channel do \|channel\|	×
NEW 67	channel.exec("cat #{fname}") do \|ch, success\|	×
NEW 68	raise UnableToExecuteError unless success	×
69
NEW 70	ch.on_data do \|_, data\|	×
NEW 71	res_w << data	×
72	end
73
NEW 74	ch.on_close do \|_\|	×
NEW 75	res_w.close	×
76	end
77	end
78	end.wait
79	end
80
81	def connection_name	16✔
82	"#{user}@#{host}:#{working_dir \|\| '~'}> "	×
83	end
84
85	def with_temp_file(code, ssh)	16✔
86	fname = String.new	×
87	code_channel = ssh.open_channel do \|channel\|	×
88	channel.exec('f=$(mktemp remote_ruby.rb.XXXXXX) && cat > $f && echo $f') do \|ch, success\|	×
89	raise UnableToExecuteError unless success	×
90
91	ch.on_data do \|_, data\|	×
92	fname << data	×
93	end
94
95	ch.send_data(code)	×
96	ch.eof!	×
97	end
98	end
99
100	code_channel.wait	×
101
102	yield fname	×
103	ensure
104	ssh.exec!("rm #{fname}")	×
105	end
106	end
107	end

Nu-hin / remote_ruby / 13529570178

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