Module: Chef::Mixin::Language

Included in:
Recipe, Resource
Defined in:
lib/chef/mixin/language.rb

Instance Method Summary collapse

Instance Method Details

#platform?(*args) ⇒ Boolean

Given a list of platforms, returns true if the current recipe is being run on a node with that platform, false otherwise.

Parameters

args

A list of platforms

Returns

true

If the current platform is in the list

false

If the current platform is not in the list

Returns:

  • (Boolean) 


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# File 'lib/chef/mixin/language.rb', line 67

def platform?(*args)
  has_platform = false
  
  args.flatten.each do |platform|
    has_platform = true if platform == @node[:platform]
  end
  
  has_platform
end

#value_for_platform(platform_hash) ⇒ Object

Given a hash similar to the one we use for Platforms, select a value from the hash. Supports per platform defaults, along with a single base default. Arrays may be passed as hash keys and will be expanded.

Parameters

platform_hash

A platform-style hash.

Returns

value

Whatever the most specific value of the hash is.



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# File 'lib/chef/mixin/language.rb', line 32

def value_for_platform(platform_hash)
  result = nil
  
  platform_hash.each_pair do |key, value|
    if key.is_a?(Array)
      key.each { |array_key| platform_hash[array_key] = value }
      platform_hash.delete(key)
    end
  end
  if platform_hash.has_key?(@node[:platform])
    if platform_hash[@node[:platform]].has_key?(@node[:platform_version])
      result = platform_hash[@node[:platform]][@node[:platform_version]]
    elsif platform_hash[@node[:platform]].has_key?("default")
      result = platform_hash[@node[:platform]]["default"]
    end
  end
  
  unless result
    if platform_hash.has_key?("default")
      result = platform_hash["default"]
    end
  end  
  
  result
end