I'm working on building a GUI for my checkers implementation. I'm utilizing a GUI framework that only works with Ruby 1.8, yet my game engine, which I have packaged as a gem, only works with Ruby 1.9.
I can't change the code for the GUI framework and reworking my game engine to make it compatible with 1.8 is undesirable, to say the least.
I'm using RVM though, and it looks like you can write RVM scripts to change Ruby versions on the fly.
Does anyone have any experience with that or what the script might look like?
You could run it in two processes. Give the GUI a 1.8 process and talk to it via a shared db or an API on the other side. That's how I'd do it. The good part about that is you can have on online version of your game as well because other clients will be able to talk to it as well.
You can't run one app with two versions of Ruby. How do you imagine this?
RVM has an ability to automatically change current ruby when you cd into a directory. Just create in that directory a file called .rvmrc with content like
rvm use 1.8.7
Related
I'm trying to make a simple multiple choice question app. Is this possible on ruby?
I've tried using shoes but I don't know how to create multiple classes and a GUI that uses them.
I'm also trying to connect all of this to a database.
I'm having trouble in understanding how to connect all of this together.
According to the comments the main problem seems to be with using the mysql gem part.
Gem usage depends on the version of shoes you are using. For green_shoes you should be good with the standard gems, but it is unmaintained. Shoes 3.1 has problems with gems that have C extensions (such as mysql). Shoes 3.2 should work. With Shoes4 you can't install the normal Ruby gems with C extensions as it uses JRuby and C extension support in JRuby is disabled. You have to use different gems to connect to the database, functionality is the same. A starting point might be activerecord-jdbc.
I'm testing the bundling of applications including Ruby scripts using TideSDK, via the TideSDK Developer app.
I have several Rubies installed on my system, using RVM, and was wondering if there is any way of specifying which one should be used using a .rvmrc file or something similar that the TideSDK ruby module can understand.
Thanks.
how are you planning to run your ruby scripts? via Ti.Process? Otherwise, the TideSDK ruby module is what it is - there's no different versions you can use with rvm (Afaik).
Update/Expanded: I should point out TideSDK bundles its own Ruby - its not using the system ruby.
Otherwise, you can execute ruby scripts via Ti.Process (like any other script you would execute from the CLI). So, in your script, instead of #!/usr/bin/ruby you could do #!/usr/bin/env ruby. Of course, this wouldn't be very portable if you relying on rvm on target systems, but if you are doing a limited ditrib to known targets (ie: internally where you know everyone has a system setup with rvm) you could probably get something working.
I need to do IPC with Ruby 1.8.5. The catch is that it's the Ruby that ships with Google SketchUp, and is only a subset of the full Ruby API. So for instance, there's no Socket class, and no DRb.
What are some other way's of doing IPC with Ruby? Anything that uses the File class, like memory mapped files, or something like that? I'm completely new to IPC, so I apologize if I missed something obvious.
The latest version of SketchUp ships with Ruby 1.8.6. You can download (if you haven't already) the core Ruby API, and just require whatever files you need, to implement your script.
Testing non-SketchUp Ruby code, is much easier outside of SketchUp, with the command line, or an editor like SciTE. Then you can add your SketchUp code for tests within the application.
Ruby Download
SciTE Download
well guess that many of you have great expertise on Linux. I currently have some issues with creating a linux-live-medium.
i have a box with OpenSuse-Linux Version 11.3 with all nice things. Several languages run very well: Perl, Python, PHP! All is very well! BTW - i am very glad that Perl runs very nice.
But I am not able to install Ruby 1.9. Everytime i want to do that i end up with Ruby 1.8.7. I want to testrun some ruby-code. Therefore i need Ruby with the following gems
mechanize
nokogiri
utf8_utils
I heard of a Linux-Live-medium that is able to run with all the wanted things including Ruby 1.9.
Therefore the Live-medium is installed on a USB-Stick with R/W partitions. Is this possible.
I am not a linux-expert - but with all the expertise here i think it is possible to create such a USB-Stick. (...with Ruby 1.9 and all with all that extensions)
I love to hear from you!
best regards
zero
Debian/Ubuntu includes both Ruby 1.8.x and 1.9.x - and essentially duplicates most packages in 2 flavors: for 1.8 and 1.9. That might be enough for your purposes - although YMMV, of course.
Yet another solution is RVM that karudzo already mentioned.
Yet another solution is virtualization: simplest form of it would be just chrooting. Most modern Linux systems have an ability to install itself based from some root directory (SuSE has install into given directory functionality, Debian/Ubuntu have debootstrap - and then just running chroot /path/to/that/directory - you'd end up in essentially another system installed cleanly in separate directory.
This will actually be a better solution for you- use RVM:
https://rvm.io/
Then you can easily switch back and forth from 1.8 to 1.9 as desired and make 1.9.2 your default. Just read their docs carefully, it really makes gem management a lot easier.
I am a fresher as far as Ruby is concerned. i worked in PHP for sometime. I was wondering if there is some pakage like LAMP or WAMP as in case of PHP for Ruby too......
If not at least suggest me the best setup or IDE for Ruby
Thanx in advance
There is something like: rubystack, if this is what you are looking for (rails development).
BitNami RubyStack greatly simplifies the development and deployment of Ruby on Rails applications. It includes ready-to-run versions of Apache, MySQL, Ruby and Rails and required dependencies. It can be deployed using a native installer, as a virtual machine or in the cloud.
Netbeans, an IDE coming from the java world has ruby support: http://wiki.netbeans.org/Ruby.
Windows
If you use Windows, the easiest way to get Ruby working is via the RubyInstaller.
If you only want to work on Ruby, Ruby 1.9.1 is your choice. Otherwise, if you want to experiment with Rails, you should try to install Ruby 1.8.7.
There's also a BitNami Ruby stack but it contains much more stuff than Ruby itself. You don't really need Apache or MySQL to work with Ruby on your local machine because you can use Mongrel and SQLite. In this way, you don't have to bother with additional background processes.
Avoid using Ruby 1.8.6. It's old and it's not convenient to start studying with an outdated Ruby version.
Mac OS X
Ruby comes installed by default with Leopard and Show Leopard. If you want a different Ruby version, I suggest to use RVM.
Linux
You can install Ruby by source or with your system package manager.
The Rails framework is a great setup for doing web development, and I would highly recommend RadRails as your IDE or it's base, Aptana.