I started developing ruby more than a year ago, on windows, which might not be the ideal platform :) But i started out with the standard one-click installer, ruby version 1.8.6, which up until recently served me fine and is an easy way to start. But when i felt the need to install metric_fu, i found out it just does not install on top of the old ruby 1.8.6 (mswin32). Now i know that for ruby 1.8.7 (mingw32) a development kit exists, which would allow compilation of all native code. So, normally, all plugins that were giving me problems before (e.g. thin!) should be able to be installed using that. Also the new rubyinstaller versions are known to be quicker, because they are using a more recent and efficient compiler (mingw), and ruby 1.9.1 should inherently be even more efficient (by design). But i was looking for an easy way to migrate and test ruby versions. I know that there exist a ruby version manager (rvm), but it only works on linux and mac. But luckily, for windows, there is pik. It is really easy to install: [bash] > gem install pik > pik_install c:\windows\system32 [/bash] [the choice to use windows\system32 is maybe not entirely kosher, but it is an easy way to add something to the path, always ;) Maybe i should have used c:\ruby\pik\bin and added that to the path.] Then add the current version as the default: [bash] > ruby -v ruby 1.8.6 (2008-08-11 patchlevel 287) [i386-mswin32] > pik add Adding: 186: ruby 1.8.6 (2008-08-11 patchlevel 287) [i386-mswin32] Located at: c:/ruby/bin [/bash] Then you can download the new versions, e.g. ruby 1.8.7. and 1.9.1 from rubyinstaller and install them each into their own folder. E.g. c:\ruby\187-p249\ and then issue the following command: [bash] > pik add c:\ruby\1.8.7-p249\bin ... > pik add c:\ruby\1.9.1-p378\bin ** Adding: 191: ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32] Located at: c:\ruby\1.9.1-p378\bin > pik list 186: ruby 1.8.6 (2008-08-11 patchlevel 287) [i386-mswin32] * 187: ruby 1.8.7 (2010-01-10 patchlevel 249) [i386-mingw32] 191: ruby 1.9.1p378 (2010-01-10 revision 26273) [i386-mingw32] [/bash] But of course, the second problem is that the one-click installer also includes a lot gems by default, while the new rubyinstaller is almost empty. So first i installed the development kit from rubyinstaller. I needed to extract that inside the each ruby folder, and change a few settings (configure), like described here, i needed to edit my /devkit/msys/1.0.11/etc/fstab settings file, and replace c:\ruby by my actual ruby-installation folder, in my case something like c:\ruby\1.8.7-p249. I create a small batch-file to install all the missing gems: [bash] rem default windows gems call gem install win32-api call gem install win32-clipboard call gem install win32-dir call gem install win32-eventlog call gem install win32-file call gem install win32-file-stat call gem install win32-process call gem install win32-sapi call gem install win32-service call gem install win32-sound call gem install win32console call gem install windows-api call gem install windows-pr call gem install hpricot call gem install nokogiri call gem install wxruby rem RAILS call gem install rails call gem install will_paginate call gem install mongrel call gem install mongrel_service call gem install formtastic rem database gems call gem install sqlite3-ruby call gem install ruby-oci8 call gem install activerecord-oracle_enhanced-adapter call gem install builder call gem install calendar_date_select call gem install cgi_multipart_eof_fix call gem install composite_primary_keys call gem install log4r call gem install ezcrypto rem testing call gem install cucumber call gem install cucumber-rails call gem install factory_girl call gem install remarkable call gem install rspec call gem install rspec-rails [/bash] But i still encountered an error on the gems that needed to build native extensions: [bash] C:\WINDOWS>gem install hpricot Building native extensions. This could take a while... ERROR: Error installing hpricot: ERROR: Failed to build gem native extension. c:/Ruby/1.9.1-p378/bin/ruby.exe extconf.rb checking for stdio.h... yes creating Makefile make MAKE Version 5.2 Copyright (c) 1987, 2000 Borland Fatal: '/c/Ruby/1.9.1-p378/include/ruby-1.9.1/ruby.h' does not exist - don't know how to make it Gem files will remain installed in c:/Ruby/1.9.1-p378/lib/ruby/gems/1.9.1/gems/hpricot-0.8.2 for inspection. Results logged to c:/Ruby/1.9.1-p378/lib/ruby/gems/1.9.1/gems/hpricot-0.8.2/ext/fast_xs/gem_make.out [/bash] It took a good nights rest to figure that one out: i have Borland's Cbuilder 5 installed on my system to be able to maintain ancient software. So i had to remove that entry from my path, and after that all gems that needed native building went smoothly, except mongrel_service. Now everything installed just fine, inside my 1.8.7 system. Doing the same on ruby 1.9.1 took a lot longer, or so it seemed definitely. I think partly that is because ruby 1.9.1 seems to maintain a class cache? But i am not sure of that. But what surprised me even more is that actually all gems installed without any problem, except win32-service and because of that, mongrel_service. As explained here, this issue is known and due to the fact that the library relies on specific MSVC behaviour that mingw does not support. But i think i can create a service from about any executable or batch file. But i read herethat i have to issue the following command: [bash] c:\ruby> gem install mongrel_service --prerelease [/bash] The pre-release version removes the dependency of win32-service, and so it works again. So now i can start testing my applications inside 1.8.7 and 1.9.1 on windows, try using thin, and get metric_fu up and running.
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