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@@ -0,0 +1,377 @@
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require 'facets/rbconfig'
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unless defined?(RUBY_ENGINE)
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RUBY_ENGINE = 'ruby'
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end
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# Platform class
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#
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# Original version from RubyGems, Copyright (c) 2007 Eric Hodel
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class Platform
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# A pure-ruby gem that may use Gem::Specification#extensions to build
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# binary files.
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RUBY = 'ruby'
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# A platform-specific gem that is built for the packaging ruby's platform.
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# This will be replaced with Gem::Platform::local.
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CURRENT = 'current'
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@local = nil
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@supported = nil
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#
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attr_accessor :cpu
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#
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attr_accessor :os
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#
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attr_accessor :version
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##RbConfig = Config unless defined? ::RbConfig
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##DEPRECATED_CONSTS = [
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## :DARWIN,
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## :LINUX_586,
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## :MSWIN32,
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## :PPC_DARWIN,
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## :WIN32,
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## :X86_LINUX
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##]
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# Array of supported platforms (ie. pure-Ruby and local platform).
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def self.supported
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@suported ||= [Platform::RUBY, Platform.local]
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end
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##def self.const_missing(name) # TODO remove six months from 2007/12
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## if DEPRECATED_CONSTS.include? name then
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## raise NameError, "#{name} has been removed, use CURRENT instead"
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## else
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## super
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## end
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##end
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#
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def self.local
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arch = RbConfig::CONFIG['arch']
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arch = "#{arch}_60" if arch =~ /mswin32$/
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@local ||= new(arch)
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end
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#
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def self.match(platform)
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supported.any? do |local_platform|
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platform.nil? or local_platform == platform or
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(local_platform != Platform::RUBY and local_platform =~ platform)
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end
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end
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#
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def self.new(arch) # :nodoc:
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case arch
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when Platform::CURRENT then
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Platform.local
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when Platform::RUBY, nil, '' then
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Platform::RUBY
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else
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super
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end
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end
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#
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def initialize(arch)
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case arch
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when Array then
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@cpu, @os, @version = arch
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when String then
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arch = arch.split '-'
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if arch.length > 2 and arch.last !~ /\d/ then # reassemble x86-linux-gnu
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extra = arch.pop
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arch.last << "-#{extra}"
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end
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cpu = arch.shift
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@cpu = case cpu
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when /i\d86/ then 'x86'
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else cpu
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end
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if arch.length == 2 and arch.last =~ /^\d+$/ then # for command-line
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@os, @version = arch
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return
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end
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os, = arch
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@cpu, os = nil, cpu if os.nil? # legacy jruby
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@os, @version = case os
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when /aix(\d+)/ then [ 'aix', $1 ]
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when /cygwin/ then [ 'cygwin', nil ]
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when /darwin(\d+)?/ then [ 'darwin', $1 ]
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when /freebsd(\d+)/ then [ 'freebsd', $1 ]
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when /hpux(\d+)/ then [ 'hpux', $1 ]
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when /^java$/, /^jruby$/ then [ 'java', nil ]
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when /^java([\d.]*)/ then [ 'java', $1 ]
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when /linux/ then [ 'linux', $1 ]
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when /mingw32/ then [ 'mingw32', nil ]
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when /(mswin\d+)(\_(\d+))?/ then
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os, version = $1, $3
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@cpu = 'x86' if @cpu.nil? and os =~ /32$/
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[os, version]
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when /netbsdelf/ then [ 'netbsdelf', nil ]
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when /openbsd(\d+\.\d+)/ then [ 'openbsd', $1 ]
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when /solaris(\d+\.\d+)/ then [ 'solaris', $1 ]
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# test
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when /^(\w+_platform)(\d+)/ then [ $1, $2 ]
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else [ 'unknown', nil ]
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end
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when Platform then
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@cpu = arch.cpu
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@os = arch.os
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@version = arch.version
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else
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raise ArgumentError, "invalid argument #{arch.inspect}"
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end
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end
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#
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def inspect
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"#<%s:0x%x @cpu=%p, @os=%p, @version=%p>" % [self.class, object_id, *to_a]
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end
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#
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def to_a
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[@cpu, @os, @version]
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end
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#
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def to_s
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to_a.compact.join '-'
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end
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#
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def ==(other)
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self.class === other and
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@cpu == other.cpu and @os == other.os and @version == other.version
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end
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#
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def ===(other)
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return nil unless Platform === other
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# cpu
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(@cpu == 'universal' or other.cpu == 'universal' or @cpu == other.cpu) and
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# os
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@os == other.os and
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# version
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(@version.nil? or other.version.nil? or @version == other.version)
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end
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#
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def =~(other)
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case other
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when Platform then # nop
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when String then
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# This data is from http://gems.rubyforge.org/gems/yaml on 19 Aug 2007
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other = case other
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when /^i686-darwin(\d)/ then ['x86', 'darwin', $1]
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when /^i\d86-linux/ then ['x86', 'linux', nil]
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when 'java', 'jruby' then [nil, 'java', nil]
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when /mswin32(\_(\d+))?/ then ['x86', 'mswin32', $2]
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when 'powerpc-darwin' then ['powerpc', 'darwin', nil]
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when /powerpc-darwin(\d)/ then ['powerpc', 'darwin', $1]
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when /sparc-solaris2.8/ then ['sparc', 'solaris', '2.8']
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when /universal-darwin(\d)/ then ['universal', 'darwin', $1]
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else other
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end
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other = Platform.new other
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else
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return nil
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end
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self === other
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end
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# B Y T E O R D E R
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# Byte order of CPU. Determine byte order of underlying machine.
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#
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# Examines the byte order of the underlying machine. Returns <code>:big</code>
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# if Big Endian and <code>:little</code> if Little Endian.
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#
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# TODO: This doesn't work well apearently. We need to use a chart for possible
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# cpus instead, maybe.
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def byte_order
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if [0x12345678].pack("L") == "\x12\x34\x56\x78"
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:big
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else
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:little
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end
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end
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#
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alias_method :byteorder, :byte_order
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#
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def little_endian?
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byte_order == :little
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end
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#
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def big_endian?
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byte_order == :big
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end
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# R U B Y E N G I N E
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# Return the name of the ruby interpreter.
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def interpreter
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@interpreter ||= (
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if RUBY_PLATFORM == 'parrot'
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'cardinal'
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elsif RUBY_ENGINE == 'ruby'
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if RUBY_DESCRIPTION =~ /Enterprise/i
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'ree'
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else
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'mri'
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end
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else
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RUBY_ENGINE.to_s # jruby, rbx, ironruby, macruby, etc.
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end
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)
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end
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def mri?
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'mri' === interpreter
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end
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alias official_ruby? mri?
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alias ruby? mri?
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def jruby?
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'jruby' === interpreter
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end
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alias java? jruby?
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def rubinius?
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'rbx' === interpreter
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end
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alias rbx? rubinius?
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def ree?
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'ree' === interpreter
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end
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alias enterprise? ree?
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def ironruby?
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'ironruby' === interpreter
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end
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alias iron_ruby? ironruby?
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def cardinal?
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'cardinal' === interpreter
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end
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alias parrot? cardinal?
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alias perl? cardinal?
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# O P E R A T I N G S Y S T E M
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def host_os
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RbConfig::CONFIG['host_os']
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end
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def linux?
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host_os =~ /linux|cygwin/
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end
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def mac?
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host_os =~ /mac|darwin/
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end
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def bsd?
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host_os =~ /bsd/
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end
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def windows?
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host_os =~ /mswin|mingw/
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end
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def solaris?
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host_os =~ /solaris|sunos/
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end
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# TODO: who knows what symbian returns?
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def symbian?
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host_os =~ /symbian/
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end
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#
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def posix?
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linux? or mac? or bsd? or solaris? or begin
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fork do end
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true
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rescue NotImplementedError, NoMethodError
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false
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end
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end
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end
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# Current CPU's Byte Order
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#BYTE_ORDER = RbConfig.byte_order
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# Current CPU
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#CPU = RbConfig.platform.cpu
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# Current Operating System
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#OS = RbConfig.platform.os
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# Current Operating System Version
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#OS_VERSION = RbConfig.platform.version
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=begin
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# platform
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def current_platform
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arch = Config::CONFIG['arch']
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#cpu, os = arch.split '-', 2
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return match_platform(arch)
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end
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#
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def match_platform(arch)
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cpu, os = arch.split '-', 2
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cpu, os = nil, cpu if os.nil? # java
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cpu = case cpu
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when /i\d86/ then 'x86'
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else cpu
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end
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os = case os
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when /cygwin/ then [ 'cygwin', nil ]
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when /darwin(\d+)?/ then [ 'darwin', $1 ]
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when /freebsd(\d+)/ then [ 'freebsd', $1 ]
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when /^java$/ then [ 'java', nil ]
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when /^java([\d.]*)/ then [ 'java', $1 ]
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when /linux/ then [ 'linux', $1 ]
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when /mingw32/ then [ 'mingw32', nil ]
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when /mswin32/ then [ 'mswin32', nil ]
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when /openbsd(\d+\.\d+)/ then [ 'openbsd', $1 ]
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when /solaris(\d+\.\d+)/ then [ 'solaris', $1 ]
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else [ 'unknown', nil ]
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end
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[cpu, os].flatten.compact.join("-")
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end
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=end
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