class Fauxhai::Fetcher
Public Class Methods
new(options = {}) { |data| ... }
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# File lib/fauxhai/fetcher.rb, line 7 def initialize(options = {}, &override_attributes) @options = options if !force_cache_miss? && cached? @data = cache else Net::SSH.start(host, user, @options) do |ssh| @data = JSON.parse(ssh.exec!('ohai')) end # cache this data so we do not have to SSH again File.open(cache_file, 'w+') { |f| f.write(@data.to_json) } end yield(@data) if block_given? if defined?(ChefSpec) data = @data ::ChefSpec::Runner.send :define_method, :fake_ohai do |ohai| data.each_pair do |attribute, value| ohai[attribute] = value end end end @data end
Public Instance Methods
cache()
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# File lib/fauxhai/fetcher.rb, line 35 def cache @cache ||= JSON.parse(File.read(cache_file)) end
cache_file()
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# File lib/fauxhai/fetcher.rb, line 47 def cache_file File.expand_path(File.join(Fauxhai.root, 'tmp', cache_key)) end
cache_key()
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# File lib/fauxhai/fetcher.rb, line 43 def cache_key Digest::SHA2.hexdigest("#{user}@#{host}") end
cached?()
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# File lib/fauxhai/fetcher.rb, line 39 def cached? File.exist?(cache_file) end
force_cache_miss?()
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# File lib/fauxhai/fetcher.rb, line 51 def force_cache_miss? @force_cache_miss ||= @options.delete(:force_cache_miss) || false end
to_hash(*args)
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Return the given `@data` attribute as a Ruby hash instead of a JSON object
@return [Hash] the `@data` represented as a Ruby hash
# File lib/fauxhai/fetcher.rb, line 58 def to_hash(*args) @data.to_hash(*args) end
to_s()
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# File lib/fauxhai/fetcher.rb, line 62 def to_s "#<Fauxhai::Fetcher @host=#{host}, @options=#{@options}>" end
Private Instance Methods
host()
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# File lib/fauxhai/fetcher.rb, line 68 def host @host ||= begin raise ArgumentError, ':host is a required option for Fauxhai.fetch' unless @options[:host] @options.delete(:host) end end
user()
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# File lib/fauxhai/fetcher.rb, line 75 def user @user ||= (@options.delete(:user) || ENV['USER'] || ENV['USERNAME']).chomp end