Class: Gem::Platform

Inherits:
Object
  • Object
show all
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 collapse

RUBY =

A pure-Ruby gem that may use Gem::Specification#extensions to build binary files.

'ruby'.freeze
CURRENT =

A platform-specific gem that is built for the packaging Ruby’s platform. This will be replaced with Gem::Platform::local.

'current'.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arch) ⇒ Platform

Returns a new instance of Platform.



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# File 'lib/rubygems/platform.rb', line 52

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/  # 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+)?$/  # 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-?((?!gnu)\w+)?/ 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 /bitrig(\d+\.\d+)?/ then     [ 'bitrig',    $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

Instance Attribute Details

#cpu ⇒ Object

Returns the value of attribute cpu



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# File 'lib/rubygems/platform.rb', line 13

def cpu
  @cpu
end

#os ⇒ Object

Returns the value of attribute os



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# File 'lib/rubygems/platform.rb', line 15

def os
  @os
end

#version ⇒ Object

Returns the value of attribute version



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# File 'lib/rubygems/platform.rb', line 17

def version
  @version
end

Class Method Details

.installable?(spec) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubygems/platform.rb', line 33

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

.local ⇒ Object 



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# File 'lib/rubygems/platform.rb', line 19

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

.match(platform) ⇒ Object 



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# File 'lib/rubygems/platform.rb', line 25

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

.new(arch) ⇒ Object

:nodoc:



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# File 'lib/rubygems/platform.rb', line 41

def self.new(arch) # :nodoc:
  case arch
  when Gem::Platform::CURRENT then
    Gem::Platform.local
  when Gem::Platform::RUBY, nil, '' then
    Gem::Platform::RUBY
  else
    super
  end
end

Instance Method Details

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

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



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# File 'lib/rubygems/platform.rb', line 130

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

#===(other) ⇒ Object

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).



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# File 'lib/rubygems/platform.rb', line 148

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

  # cpu
  ([nil,'universal'].include?(@cpu) or [nil, 'universal'].include?(other.cpu) 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) ⇒ Object

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



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# File 'lib/rubygems/platform.rb', line 166

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

#hash ⇒ Object

:nodoc:



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# File 'lib/rubygems/platform.rb', line 136

def hash # :nodoc:
  to_a.hash
end

#inspect ⇒ Object 



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# File 'lib/rubygems/platform.rb', line 114

def inspect
  "%s @cpu=%p, @os=%p, @version=%p>" % [super[0..-2], *to_a]
end

#to_a ⇒ Object 



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# File 'lib/rubygems/platform.rb', line 118

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

#to_s ⇒ Object 



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# File 'lib/rubygems/platform.rb', line 122

def to_s
  to_a.compact.join '-'
end