module Platform

Platform ↑

Platform is a simple module which parses the Ruby constant RUBY_PLATFORM and works out the OS, it’s implementation, and the architecture it’s running on.

The motivation for writing this was coming across a case where

+if RUBY_PLATFORM =~ /win/+

didn’t behave as expected (i.e. on powerpc-darwin-8.1.0)

It is hoped that providing a library for parsing the platform means that we can cover all the cases and have something which works reliably 99% of the time.

Please report any anomalies or new combinations to the author(s).

Use ↑

require “platform”

defines

Platform::OS (:unix,:win32,:vms,:os2) Platform::IMPL (:macosx,:linux,:mswin) Platform::ARCH (:powerpc,:x86,:alpha)

if an unknown configuration is encountered any (or all) of these constant may have the value :unknown.

To display the combination for your setup run

ruby platform.rb

Constants

ARCH
ARCHS

What about AMD, Turion, Motorola, etc..?

IMPL
PLATFORMS

Each platform is defined as

/regex/, ::OS, ::IMPL

define them from most to least specific and

/.*/, :unknown, :unknown

should always come last

whither AIX, SOLARIS, and the other unixen?

Public Class Methods

description() click to toggle source 
# File lib/platform.rb, line 96
def self.description
  {
    :os => OS,
    :impl => IMPL,
    :arch => ARCH
  }
end
for_platform( os, impl = IMPL, arch = ARCH ) { |OS, IMPL, ARCH| ... } click to toggle source

Execute the given block of code for a specific combination (or combinations) of platform operating system, implementation, and architecture.

e.g. Platform.invoke_if( :unix, :macosx )

# File lib/platform.rb, line 88
def self.for_platform( os, impl = IMPL, arch = ARCH )
  if block_given?
    if Array( os ).include?( OS ) && Array( impl ).include?( IMPL ) && Array( arch ).include?( ARCH )
      yield( OS, IMPL, ARCH )
    end
  end
end