Ruby on windows with mongodb

setting up ruby for windows, like anything windows these days, is more annoying then the other environments, especially Linux. Here are some key point I hope will save you some time:

  1. Ruby installer for windows, is only the start. it's located here. while you're there, don't stop with the installer: make sure to download the development kit (Development Kit section). You'll need it later on. make sure to extract it in a simple path, e.g. c:\devkit or alike. don't use spaces or special characters.
  2. Once ruby is installed, lets check the gem operation: if you can run gem update –system without an error – great, but if not, here is what you need to do: download the pem file here and save it in your rubygems/ssl_certs/ folder. now, the command should be executed correctly.
  3. lets update the system with

     

     

    gem update

     

  4. To install mongo, lets run

     

     

    gem install mongo
    
    gem install bson_ext

     

  5. The last one will install bson in C which is much faster. great? sure, but it's not going to work (Windows). so now what? first, lets go to the install folder of this gem (..lib/ruby/gems/[version]/gems/bson_ext[xxx]/ using cmd.
  6. once there open the cbson.c file that is located inside of ext/cbson folder. make sure that you have a reference to winsock2 and not arpa/inet. note that it is existed in more advanced versions, so if it's there, you don't need to change it. This is how it should looks like:

     

    #ifdef _WIN32
    #include <winsock2.h>
    #else
    #include <arpa/inet.h>
    #include <sys/types.h>
    #endif

    note that if you already have this file, your installation might actually work, so you can skip directly to the test code below.

  7. next, you need to setup your devkit installment, so go to your devkit folder, and run

    ruby dk.rb init

    . this will generate the config.yml file in that folder.

  8. edit this file, making sure that it contains the ruby path at its end, like this: – c:/ruby. note the spaces and the backslash. these are not typos.
  9. next run ruby

    dk.rb install

    .

  10. in your command window that is in the gem folder, run gem build bson_ext.gemspec.
  11. move the new gem c
  12. delete the entire bson_ext gem folder
  13. Run:

    gem install bson_ext-1.11.1.gem --local

     

  from within the folder you've saved that gem.

Starter code:

require 'rubygems'
require('mongo')
puts('testing mongo...')

if you can run this code without an error or a mongo warning claiming that you are not using bson_ext, you are good to go!