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'
CURRENT =

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



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
 
# 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

Instance Attribute Details

#cpu ⇒ Object

Returns the value of attribute cpu



12
13
14
 
# File 'lib/rubygems/platform.rb', line 12

def cpu
  @cpu
end

#os ⇒ Object

Returns the value of attribute os



14
15
16
 
# File 'lib/rubygems/platform.rb', line 14

def os
  @os
end

#version ⇒ Object

Returns the value of attribute version



16
17
18
 
# File 'lib/rubygems/platform.rb', line 16

def version
  @version
end

Class Method Details

.installable?(spec) ⇒ Boolean

Returns:

  • (Boolean) 


32
33
34
35
36
37
38
 
# 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 ⇒ Object 



18
19
20
21
22
 
# File 'lib/rubygems/platform.rb', line 18

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

.match(platform) ⇒ Object 



24
25
26
27
28
29
30
 
# 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

.new(arch) ⇒ Object

:nodoc:



40
41
42
43
44
45
46
47
48
49
 
# File 'lib/rubygems/platform.rb', line 40

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.



128
129
130
 
# File 'lib/rubygems/platform.rb', line 128

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).



146
147
148
149
150
151
152
153
154
155
156
157
158
 
# 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) ⇒ Object

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



164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
 
# 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 '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:



134
135
136
 
# File 'lib/rubygems/platform.rb', line 134

def hash # :nodoc:
  to_a.hash
end

#inspect ⇒ Object 



112
113
114
 
# 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 ⇒ Object 



116
117
118
 
# File 'lib/rubygems/platform.rb', line 116

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

#to_s ⇒ Object 



120
121
122
 
# File 'lib/rubygems/platform.rb', line 120

def to_s
  to_a.compact.join '-'
end