ec2_metadata.rb in ohai-15.1.3

- old
+ new

@@ -15,11 +15,11 @@
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require "net/http"
+require "net/http" unless defined?(Net::HTTP)
 
 module Ohai
   module Mixin
     ##
     # This code parses the EC2 Instance Metadata API to provide details
@@ -37,16 +37,16 @@
     #
     # If no compatible version is found, an empty hash is returned.
     #
     module Ec2Metadata
 
-      EC2_METADATA_ADDR = "169.254.169.254".freeze unless defined?(EC2_METADATA_ADDR)
-      EC2_SUPPORTED_VERSIONS = %w{ 1.0 2007-01-19 2007-03-01 2007-08-29 2007-10-10 2007-12-15
+      EC2_METADATA_ADDR ||= "169.254.169.254".freeze
+      EC2_SUPPORTED_VERSIONS ||= %w{ 1.0 2007-01-19 2007-03-01 2007-08-29 2007-10-10 2007-12-15
                                    2008-02-01 2008-09-01 2009-04-04 2011-01-01 2011-05-01 2012-01-12
                                    2014-02-25 2014-11-05 2015-10-20 2016-04-19 2016-06-30 2016-09-02 }.freeze
-      EC2_ARRAY_VALUES = %w{security-groups local_ipv4s}.freeze
-      EC2_ARRAY_DIR    = %w{network/interfaces/macs}.freeze
-      EC2_JSON_DIR     = %w{iam}.freeze
+      EC2_ARRAY_VALUES ||= %w{security-groups local_ipv4s}.freeze
+      EC2_ARRAY_DIR    ||= %w{network/interfaces/macs}.freeze
+      EC2_JSON_DIR     ||= %w{iam}.freeze
 
       def best_api_version
         @api_version ||= begin
           logger.trace("Mixin EC2: Fetching http://#{EC2_METADATA_ADDR}/ to determine the latest supported metadata release")
           response = http_client.get("/")