class Gem::TargetRbConfig

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.

Attributes

Public Class Methods

for_running_ruby ()

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

# File lib/rubygems/target_rbconfig.rb, line 25
def self.for_running_ruby
  new(::RbConfig, nil)
end
from_path (rbconfig_path)

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

# 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
new (rbconfig, path) 
# File lib/rubygems/target_rbconfig.rb, line 17
def initialize(rbconfig, path)
  @rbconfig = rbconfig
  @path = path
end

Public Instance Methods

[] (key)

Queries the configuration for the given key.

# File lib/rubygems/target_rbconfig.rb, line 47
def [](key)
  @rbconfig::CONFIG[key]
end