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.



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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
 
# File 'lib/rubygems/platform.rb', line 68

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

    if arch.length > 2 && arch.last !~ /\d+(\.\d+)?$/ # reassemble x86-linux-{libc}
      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 && 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",   $1  ]
    when /^java$/, /^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-?(\w+)?/ then         [ "linux",     $1  ]
    when /mingw32/ then               [ "mingw32",   nil ]
    when /mingw-?(\w+)?/ then         [ "mingw",     $1  ]
    when /(mswin\d+)(\_(\d+))?/ then
      os, version = $1, $3
      @cpu = "x86" if @cpu.nil? && os =~ /32$/
      [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.



13
14
15
 
# File 'lib/rubygems/platform.rb', line 13

def cpu
  @cpu
end

#os ⇒ Object

Returns the value of attribute os.



13
14
15
 
# File 'lib/rubygems/platform.rb', line 13

def os
  @os
end

#version ⇒ Object

Returns the value of attribute version.



13
14
15
 
# File 'lib/rubygems/platform.rb', line 13

def version
  @version
end

Class Method Details

.installable?(spec) ⇒ Boolean

Returns:

  • (Boolean) 


49
50
51
52
53
54
55
 
# File 'lib/rubygems/platform.rb', line 49

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

.local ⇒ Object 



15
16
17
18
19
 
# File 'lib/rubygems/platform.rb', line 15

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

.match(platform) ⇒ Object 



21
22
23
 
# File 'lib/rubygems/platform.rb', line 21

def self.match(platform)
  match_platforms?(platform, Gem.platforms)
end

.match_gem?(platform, gem_name) ⇒ Boolean

Returns:

  • (Boolean) 


39
40
41
42
43
 
# File 'lib/rubygems/platform.rb', line 39

def self.match_gem?(platform, gem_name)
  # Note: this method might be redefined by Ruby implementations to
  # customize behavior per RUBY_ENGINE, gem_name or other criteria.
  match_platforms?(platform, Gem.platforms)
end

.match_spec?(spec) ⇒ Boolean

Returns:

  • (Boolean) 


35
36
37
 
# File 'lib/rubygems/platform.rb', line 35

def self.match_spec?(spec)
  match_gem?(spec.platform, spec.name)
end

.new(arch) ⇒ Object

:nodoc:



57
58
59
60
61
62
63
64
65
66
 
# File 'lib/rubygems/platform.rb', line 57

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

.sort_priority(platform) ⇒ Object 



45
46
47
 
# File 'lib/rubygems/platform.rb', line 45

def self.sort_priority(platform)
  platform == Gem::Platform::RUBY ? -1 : 1
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.



141
142
143
 
# File 'lib/rubygems/platform.rb', line 141

def ==(other)
  self.class === other && 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 one 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).

Of note, this method is not commutative. Indeed the OS ‘linux’ has a special case: the version is the libc name, yet while “no version” stands as a wildcard for a binary gem platform (as for other OSes), for the runtime platform “no version” stands for ‘gnu’. To be able to distinguish these, the method receiver is the gem platform, while the argument is the runtime platform.

– NOTE: Until it can be removed, changes to this method must also be reflected in ‘bundler/lib/bundler/rubygems_ext.rb`



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 169

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

  # universal-mingw32 matches x64-mingw-ucrt
  return true if (@cpu == "universal" || other.cpu == "universal") &&
                 @os.start_with?("mingw") && other.os.start_with?("mingw")

  # cpu
  ([nil,"universal"].include?(@cpu) || [nil, "universal"].include?(other.cpu) || @cpu == other.cpu ||
  (@cpu == "arm" && other.cpu.start_with?("arm"))) &&

    # os
    @os == other.os &&

    # version
    (
      (@os != "linux" && (@version.nil? || other.version.nil?)) ||
      (@os == "linux" && (normalized_linux_version == other.normalized_linux_version || ["musl#{@version}", "musleabi#{@version}", "musleabihf#{@version}"].include?(other.version))) ||
      @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.



207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
 
# File 'lib/rubygems/platform.rb', line 207

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:



147
148
149
 
# File 'lib/rubygems/platform.rb', line 147

def hash # :nodoc:
  to_a.hash
end

#normalized_linux_version ⇒ Object

– NOTE: Until it can be removed, changes to this method must also be reflected in ‘bundler/lib/bundler/rubygems_ext.rb`



194
195
196
197
198
199
200
201
 
# File 'lib/rubygems/platform.rb', line 194

def normalized_linux_version
  return nil unless @version

  without_gnu_nor_abi_modifiers = @version.sub(/\Agnu/, "").sub(/eabi(hf)?\Z/, "")
  return nil if without_gnu_nor_abi_modifiers.empty?

  without_gnu_nor_abi_modifiers
end

#to_a ⇒ Object 



129
130
131
 
# File 'lib/rubygems/platform.rb', line 129

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

#to_s ⇒ Object 



133
134
135
 
# File 'lib/rubygems/platform.rb', line 133

def to_s
  to_a.compact.join "-"
end