Class: Gem::TargetRbConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/rubygems/target_rbconfig.rb

Overview

A TargetConfig is a wrapper around an RbConfig object that provides a consistent interface for querying configuration for *deployment target platform*, where the gem being installed is intended to run on.

The TargetConfig is typically created from the RbConfig of the running Ruby process, but can also be created from an RbConfig file on disk for cross- compiling gems.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rbconfig, path) ⇒ TargetRbConfig

Returns a new instance of TargetRbConfig.



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

def initialize(rbconfig, path)
  @rbconfig = rbconfig
  @path = path
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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

def path
  @path
end

Class Method Details

.for_running_ruby ⇒ Object

Creates a TargetRbConfig for the platform that RubyGems is running on.



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

def self.for_running_ruby
  new(::RbConfig, nil)
end

.from_path(rbconfig_path) ⇒ Object

Creates a TargetRbConfig from the RbConfig file at the given path. Typically used for cross-compiling gems.



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

def self.from_path(rbconfig_path)
  namespace = Module.new do |m|
    # Load the rbconfig.rb file within a new anonymous module to avoid
    # conflicts with the rbconfig for the running platform.
    Kernel.load rbconfig_path, m
  end
  rbconfig = namespace.const_get(:RbConfig)

  new(rbconfig, rbconfig_path)
end

Instance Method Details

#[](key) ⇒ Object

Queries the configuration for the given key.



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# File 'lib/rubygems/target_rbconfig.rb', line 47

def [](key)
  @rbconfig::CONFIG[key]
end