made method to extract metadata into json

classes/nvd_downloader.rb

@@ -75,7 +75,7 @@ module NvdTools
       # of all of the json.gz from each year + recent + modified json feeds
     end
     
-    def modified_meta(filename)
+    def get_metadata_file(filename)
       file = filenames('meta').select do |name|
         name == filename
       end.first
@@ -85,18 +85,26 @@ module NvdTools
       # this should be a method that builds 
       # the modified filename with the meta file extension included
     end
-    
-    def check_metafile(metafile)
 
-      # open the metafile, build a hash of k/v pairs of the data inside of the file
+    def extract_metadata(metadata)
+      metaf = get_metadata_file(metadata)
+      keys_and_values_str = metaf.map do |line|
+        line.split(":", 2)
+      end
+      json = Hash[keys_and_values_str].to_json
+      JSON.parse(json, { symbolize_names: true })
+    end
+
+    def check_metadata(metadata_file_to_check, metadata_to_check_against)
       # check each k/v pair against the file on disk
       # return a new hash with the same k as before, but the value being a boolean true or false if the value from the k/v pair
+     
     end
-    
-    def detect_changes(metafile)
-      # this should be a method that detects changes in the metafile. 
-      # run the check_metafile method against the current metafile on disk.
+
+    def detect_changes(metadata)
+      # this should be a method that detects changes in the metadata. 
+      # run the check_metadata method against the current metadata.
       # if there is a change, return true, if not return false
     end
   end
-end
+end