Class: LibGems::Platform

Inherits:
Object
  • Object
show all
Defined in:
lib/libgems/platform.rb

Overview

Available list of platforms for targeting LibGems installations.

Constant Summary collapse

RUBY =

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

'ruby'
CURRENT =

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

'current'

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/libgems/platform.rb', line 38

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 /freebsd(\d+)/ then         [ 'freebsd',   $1  ]
                    when /hpux(\d+)/ then            [ 'hpux',      $1  ]
                    when /^java$/, /^jruby$/ then    [ 'java',      nil ]
                    when /^java([\d.]*)/ then        [ 'java',      $1  ]
                    when /^dotnet$/ 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 LibGems::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/libgems/platform.rb', line 8

def cpu
  @cpu
end

#os ⇒ Object

Returns the value of attribute os.



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# File 'lib/libgems/platform.rb', line 10

def os
  @os
end

#version ⇒ Object

Returns the value of attribute version.



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

def version
  @version
end

Class Method Details

.local ⇒ Object 



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

def self.local
  arch = LibGems::ConfigMap[:arch]
  arch = "#{arch}_60" if arch =~ /mswin32$/
  @local ||= new(arch)
end

.match(platform) ⇒ Object 



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# File 'lib/libgems/platform.rb', line 20

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

.new(arch) ⇒ Object

:nodoc:



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# File 'lib/libgems/platform.rb', line 27

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

Instance Method Details

#==(other) ⇒ Object

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/libgems/platform.rb', line 117

def ==(other)
  self.class === other and
    @cpu == other.cpu and @os == other.os and @version == other.version
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.



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# File 'lib/libgems/platform.rb', line 127

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

  # cpu
  (@cpu == 'universal' or other.cpu == 'universal' or @cpu == other.cpu) 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 LibGems::Platform first. See #=== for matching rules.



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# File 'lib/libgems/platform.rb', line 144

def =~(other)
  case other
  when LibGems::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 /dotnet(\-(\d+\.\d+))?/ then ['universal','dotnet',  $2    ]
            when /mswin32(\_(\d+))?/    then ['x86',       'mswin32', $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 = LibGems::Platform.new other
  else
    return nil
  end

  self === other
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/libgems/platform.rb', line 109

def empty?
  to_s.empty?
end

#inspect ⇒ Object 



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# File 'lib/libgems/platform.rb', line 97

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

#to_a ⇒ Object 



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# File 'lib/libgems/platform.rb', line 101

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

#to_s ⇒ Object 



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# File 'lib/libgems/platform.rb', line 105

def to_s
  to_a.compact.join '-'
end