How to test that JRuby script is being run on Windows?

Question

RUBY_PLATFORM is java either way.

Normally I can do system checks with uname but Windows doesn't have uname command. (and checking that uname didn't run correctly is pretty silly)

http://stackoverflow.com/questions/228477/how-do-i-programmatically-determine-operating-system-in-java (relates to JVMs in general, and thus JRuby) — , Mar 31 '12 at 19:24

score 2 · Accepted Answer · answered Mar 31 '12 at 19:27

2

require 'rbconfig'

puts RbConfig::CONFIG['host_os']

answered Mar 31 '12 at 19:27

Justin Workman

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score 1 · Answer 2 · answered Mar 31 '12 at 19:31

In addition, if you need underlying architecture, you can check RUBY_DESCRIPTION, and look between [ and ].

irb(main):004:0> RUBY_DESCRIPTION
=> "jruby 1.7.0.dev (ruby-1.9.3-p139) (2012-03-30 387d8ad) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_29) [darwin-x86_64-java]"

How to test that JRuby script is being run on Windows?

2 Answers2