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Class: Gem::Platform

Relationships & Source Files
Inherits: Object
Defined in: lib/rubygems/platform.rb

Overview

Available list of platforms for targeting ::Gem installations.

See gem help platform for information on platform matching.

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

  • #==(other) (also: #eql?)

    Is other equal to this platform? Two platforms are equal if they have the same CPU, OS and version.

  • #===(other)

    Does other match this platform? Two platforms match if they have the same CPU, or either has a CPU of 'universal', they have the same OS, and they have the same version, or either has no version.

  • #=~(other)

    Does other match this platform? If other is a String it will be converted to a Platform first.

  • #eql?(other)

    Alias for #==.

  • #initialize(arch) ⇒ Platform constructor
  • #inspect
  • #to_a
  • #to_s

Constructor Details

#initialize(arch) ⇒ Platform

[ GitHub ] 

  


# File 'lib/rubygems/platform.rb', line 51



def initialize(arch)
  case arch
  when Array then
    @cpu, @os, @version = arch
  when String then
    arch = arch.split '-'

    if arch.length > 2 and arch.last !~ /\d/ then # reassemble x86-linux-gnu
      extra = arch.pop
      arch.last << "-#{extra}"
    end

    cpu = arch.shift

    @cpu = case cpu
           when /i\d86/ then 'x86'
           else cpu
           end

    if arch.length == 2 and arch.last =~ /^\d(\.\d)?$/ then # for command-line
      @os, @version = arch
      return
    end

    os, = arch
    @cpu, os = nil, cpu if os.nil? # legacy jruby

    @os, @version = case os
                    when /aix(\d+)?/ then             [ 'aix',       $1  ]
                    when /cygwin/ then                [ 'cygwin',    nil ]
                    when /darwin(\d+)?/ then          [ 'darwin',    $1  ]
                    when /^macruby$/ then             [ 'macruby',   nil ]
                    when /freebsd(\d+)?/ then         [ 'freebsd',   $1  ]
                    when /hpux(\d+)?/ then            [ 'hpux',      $1  ]
                    when /^java$/, /^jruby$/ then     [ 'java',      nil ]
                    when /^java([\d.]*)/ then         [ 'java',      $1  ]
                    when /^dalvik(\d+)?$/ then        [ 'dalvik',    $1  ]
                    when /^dotnet$/ then              [ 'dotnet',    nil ]
                    when /^dotnet([\d.]*)/ then       [ 'dotnet',    $1  ]
                    when /linux/ then                 [ 'linux',     $1  ]
                    when /mingw32/ then               [ 'mingw32',   nil ]
                    when /(mswin\d)(\_(\d))?/ then
                      os, version = $1, $3
                      @cpu = 'x86' if @cpu.nil? and os =~ /32$/
                      [os, version]
                    when /netbsdelf/ then             [ 'netbsdelf', nil ]
                    when /openbsd(\d\.\d)?/ then    [ 'openbsd',   $1  ]
                    when /solaris(\d\.\d)?/ then    [ 'solaris',   $1  ]
                    # test
                    when /^(\w_platform)(\d)?/ then [ $1,          $2  ]
                    else                              [ 'unknown',   nil ]
                    end
  when Gem::Platform then
    @cpu = arch.cpu
    @os = arch.os
    @version = arch.version
  else
    raise ArgumentError, "invalid argument #{arch.inspect}"
  end
end


  







Class Method Details



  

    .installable?(spec)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 32



def self.installable?(spec)
  if spec.respond_to? :installable_platform?
    spec.installable_platform?
  else
    match spec.platform
  end
end


  








  

    .local  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 18



def self.local
  arch = RbConfig::CONFIG['arch']
  arch = "#{arch}_60" if arch =~ /mswin(?:32|64)$/
  @local ||= new(arch)
end


  








  

    .match(platform)  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 24



def self.match(platform)
  Gem.platforms.any? do |local_platform|
    platform.nil? or
      local_platform == platform or
      (local_platform != Gem::Platform::RUBY and local_platform =~ platform)
  end
end


  







Instance Attribute Details



  

    #cpu   (rw)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 12



attr_accessor :cpu


  








  

    #os   (rw)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 14



attr_accessor :os


  








  

    #version   (rw)
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 16



attr_accessor :version


  







Instance Method Details



  

    #==(other)  
    Also known as: #eql?
  



  

    

Is other equal to this platform?  Two platforms are equal if they have the same CPU, OS and version.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 128



def ==(other)
  self.class === other and to_a == other.to_a
end


  








  

    #===(other)  
  



  

    

Does other match this platform?  Two platforms match if they have the same CPU, or either has a CPU of 'universal', they have the same OS, and they have the same version, or either has no version.



Additionally, the platform will match if the local CPU is 'arm' and the other CPU starts with “arm” (for generic ARM family support).


  



  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 146



def ===(other)
  return nil unless Gem::Platform === other

  # cpu
  (@cpu == 'universal' or other.cpu == 'universal' or @cpu == other.cpu or
   (@cpu == 'arm' and other.cpu =~ /\Aarm/)) and

  # os
  @os == other.os and

  # version
  (@version.nil? or other.version.nil? or @version == other.version)
end


  








  

    #=~(other)  
  



  

    

Does other match this platform?  If other is a String it will be converted to a Platform first.  See #=== for matching rules.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 164



def =~(other)
  case other
  when Gem::Platform then # nop
  when String then
    # This data is from http://gems.rubyforge.org/gems/yaml on 19 Aug 2007
    other = case other
            when /^i686-darwin(\d)/     then ['x86',       'darwin',  $1    ]
            when /^i\d86-linux/         then ['x86',       'linux',   nil   ]
            when 'java', 'jruby'        then [nil,         'java',    nil   ]
            when /^dalvik(\d+)?$/       then [nil,         'dalvik',  $1    ]
            when /dotnet(\-(\d\.\d))?/ then ['universal','dotnet',  $2    ]
            when /mswin32(\_(\d+))?/    then ['x86',       'mswin32', $2    ]
            when /mswin64(\_(\d+))?/    then ['x64',       'mswin64', $2    ]
            when 'powerpc-darwin'       then ['powerpc',   'darwin',  nil   ]
            when /powerpc-darwin(\d)/   then ['powerpc',   'darwin',  $1    ]
            when /sparc-solaris2.8/     then ['sparc',     'solaris', '2.8' ]
            when /universal-darwin(\d)/ then ['universal', 'darwin',  $1    ]
            else                             other
            end

    other = Gem::Platform.new other
  else
    return nil
  end

  self === other
end


  








  

    #eql?(other)  
  



  

    

Alias for #==.


  



  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 132



alias :eql? :==


  








  

    #inspect  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 112



def inspect
  "#<%s:0x%x @cpu=%p, @os=%p, @version=%p>" % [self.class, object_id, *to_a]
end


  








  

    #to_a  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 116



def to_a
  [@cpu, @os, @version]
end


  








  

    #to_s  
  

  [ GitHub ]


  

  


# File 'lib/rubygems/platform.rb', line 120



def to_s
  to_a.compact.join '-'
end