I am unable to create an EXE file from Ruby script.
require 'socket'
class Server
def initialize(ip, port)
#server = TCPServer.open(ip, port)
#clients = Array.new
run
end
def run
loop {
Thread.start(#server.accept) do |client|
#clients << client
client.puts 'Connection established'
listen_user_messages(client)
end
}.join
end
def listen_user_messages(client)
loop {
msg = client.gets.chomp
#clients.each do |other_client|
if other_client != client
other_client.puts "#{msg}"
end
end
}
end
end
Server.new('localhost', 19937)
I'm trying to run the following command:
ocra server.rb
but it freezes on the message
=== Loading script to check dependencies
I've also tried to use exerb:
ruby exerb server.rb
It builds an exe file, but I am unable to use it:
server.rb:1:in `require': No such file to load -- socket (LoadError)
from server.rb:1
require 'socket'
require 'rubygems'
exit if Object.const_defined?(:Ocra) #allow ocra to create an exe without executing the entire script
Add the above to your script, this should allow it to generate.
Ocra cannot see ruby gems and other files at times if you don't include 'rubygems'
Related
im building a small game in ruby to practice programming, so far everything has went well but im trying to implement multiplayer support, i can connect to the server and i can send information but when I try to read form the server it just freezes and my screen goes completely black. and i cant find the cause, ive read the documentation for the gem im using for TCP and i dont know, maybe i missed something, but if any of you have some insight I would really appreciate it
heres the repo if this code isnt enough
https://github.com/jaypitti/ruby-2d-gosu-game
heres the client side code
class Client
include Celluloid::IO
def initialize(server, port)
begin
#socket = TCPSocket.new(server, port)
rescue
$error_message = "Cannot find game server."
end
end
def send_message(message)
#socket.write(message) if #socket
end
def read_message
#socket.readpartial(4096) if #socket
end
end
heres the gameserver
require 'celluloid/autostart'
require 'celluloid/io'
class Server
include Celluloid::IO
finalizer :shutdown
def initialize(host, port)
puts "Starting Server on #{host}:#{port}."
#server = TCPServer.new(host, port)
#objects = Hash.new
#players = Hash.new
async.run
end
def shutdown
#server.close if #server
end
def run
loop { async.handle_connection #server.accept }
end
def handle_connection(socket)
_, port, host = socket.peeraddr
user = "#{host}:#{port}"
puts "#{user} has joined the arena."
loop do
data = socket.readpartial(4096)
data_array = data.split("\n")
if data_array and !data_array.empty?
begin
data_array.each do |row|
message = row.split("|")
if message.size == 10
case message[0]
when 'obj'
#players[user] = message[1..9] unless #players[user]
#objects[message[1]] = message[1..9]
when 'del'
#objects.delete message[1]
end
end
response = String.new
#objects.each_value do |obj|
(response << obj.join("|") << "\n") if obj
end
socket.write response
end
rescue Exception => exception
puts exception.backtrace
end
end # end data
end # end loop
rescue EOFError => err
player = #players[user]
puts "#{player[3]} has left"
#objects.delete player[0]
#players.delete user
socket.close
end
end
server, port = ARGV[0] || "0.0.0.0", ARGV[1] || 1234
supervisor = Server.supervise(server, port.to_i)
trap("INT") do
supervisor.terminate
exit
end
sleep
it just freezes and my screen goes completely black. and i cant find the cause
A good trick you can look at is attaching to your process with either rbspy or rbtrace to see that is going on when it is stuck.
You can also try first reducing dependencies here a bit and doing this with a simple threadpool prior to going full async with celluloid or event machine.
First of all you should not be rescuing Exception all over the place. Wrapping long begin rescue blocks around nested iterators is begging for trouble.
It sounds like a threading issues, memory and/or CPU but that's just a guess. Try to monitor your resources or use some performance checking gems. But for the love of Satoshi Nakamoto, please write some test coverage and see your methods fail miserably, then fix them!
Some of these may help:
group :development do
gem 'bullet', require: false
gem 'flamegraph', require: false
gem 'memory_profiler', require: false
gem 'rack-mini-profiler', require: false
gem 'seed_dump'
gem 'stackprof', require: false
gem 'traceroute', require: false
end
I have installed Ruby (not Rails) on a machine and am trying to run some code based off the koala framework for Facebook.
When I run
gem list
koala is mentioned but when I run the file, I get this error. Rubygems is already installed, I'm not sure what else to do. Any ideas?
Edit:
require 'koala'
require 'json'
#graph = Koala::Facebook::API.new("CAACEdEose0cBANb7YuygrBflSkBrpdalb4e70T5lJgdLPYEh0Uxy5JLPVdukKSiwZAK8g27DnwscSUWNaC0s53ogq6h562LETjYO4sB5lZAMAy8tC0SM9UzqXkk7GKYpaLrkQlgj1oLTdOJhBfq5KJtFxZBkOkpz8HaVPLYp66OnuGkaGOogVseR1tUNXVxToKl6ZCmwHL0i5RHNvMnd")
url = File.open("urls.txt","r")
url.each_line do |line|
id = /[\d]+/.match(line)
begin
temp = #graph.get_object(id)
list = File.open("working.txt", "a")
list.write(id)
list.write("\n")
puts "Worked for #{id}."
rescue
puts "Didn't work for #{id}."
end
end
I have a Sinatra application with the following main.rb:
require 'bundler'
Bundler.require
get '/' do
##p = Pry.new
haml :index
end
post '/' do
code = params[:code]
$stdout = StringIO.new
##p.eval(code)
output = $stdout.string
$stdout = STDOUT
output_arr = []
output.each_line('\n') { |line| output_arr << line }
output_arr[1]
binding.pry
end
When I hit the binding.pry at the bottom to see if output contains any output, it seems like the IO stream is not closed, as I can't get anything to show up in the console.
However if I try to call open on StringIO.new, I receive an NoMethodError - private method 'open' called.
I am requiring 'stringio' in a config.ru file, and I've also tried requiring it in the main.rb file:
config.ru:
require 'stringio'
require './main'
run Sinatra::Application
I'm not sure if this is related but something interesting that I've noticed is that, in irb, if I require 'pry' before requiring stringio, then it returns false, otherwise it returns true.
This makes me wonder if Sinatra is including Pry from my Gemfile before loading the config.ru. Could that be the problem? Not sure how to solve this.
When I'm trying to Net::SSH.start to my debian ssh server and transfer a files, every time I've a very strange error message - `start': Net::SSH::AuthenticationFailed, but all the authentication data are correct, I don't know what a problem is. Does anyone faced same problem?
The code was written on ruby and net/ssh module are in use, here is a code:
require 'rubygems'
require 'net/ssh'
def copy_file(session, source_path, destination_path=nil)
destination_path ||= source_path
cmd = %{cat > "#{destination_path.gsub('"', '\"')}"}
session.process.popen3(cmd) do |i, o, e|
puts "Copying #{source_path} to #{destination_path}... "
open(source_path) { |f| i.write(f.read) }
puts 'Done.'
end
end
Net::SSH.start("192.168.112.129",
:username=>'username',
:password=>'password') do |session|
copy_file(session, 'D:/test/1.txt')
copy_file(session, '/home/timur/Documents/new_file.rb"')
end
There is no :username option in net/ssh 2.6, you can set it like parameter:
Net::SSH.start('192.168.112.129', 'username', password: 'password') do |ssh|
foo
end
Trying to establish a connection from a module in Rails and get no connection to server. I have tested the same code outside Rails and it works fine.
require 'rubygems'
require 'net-ldap'
module Foo
module Bar
class User
attr_reader :ldap_connection
def initialize
#ldap = Net::LDAP.new(:host => "<ip-number>", :port => 389)
#treebase = "ou=People, dc=foo, dc=bar"
username = "cn=Manager"
password = "password"
#ldap.auth username, password
begin
if #ldap.bind
#ldap_connection = true
else
#ldap_connection = false
end
rescue Net::LDAP::LdapError
#ldap_connection = false
end
end
end
end
end
Getting Net::LDAP::LdapError: no connection to server exception.
I found a solution/workaround for my problem with auto-loading in Rails. Added a new initializer to ensure that all Ruby files under lib/ get required:
Added config/initializers/require_files_in_lib.rb with this code
Dir[Rails.root + 'lib/**/*.rb'].each do |file|
require file
end
Read more about the workaround: Rails 3 library not loading until require