db_cache.rb in relaton-0.3.0

- old
+ new

@@ -5,32 +5,32 @@
 
     # @param dir [String] DB directory
     def initialize(dir)
       @dir = dir
       Dir.mkdir @dir unless Dir.exist? @dir
-      fiele_version = "#{@dir}/version"
-      File.write fiele_version, VERSION unless File.exist? fiele_version
+      file_version = "#{@dir}/version"
+      File.write file_version, VERSION, encoding: "utf-8" unless File.exist? file_version
     end
 
     # Save item
     # @param key [String]
     # @param value [String] Bibitem xml serialization
     def []=(key, value)
       return if value.nil?
       prefix_dir = "#{@dir}/#{prefix(key)}"
       Dir.mkdir prefix_dir unless Dir.exist? prefix_dir
-      File.write filename(key), value
+      File.write filename(key), value, encoding: "utf-8"
     end
 
     # Read item
     # @param key [String]
     # @return [String]
     def [](key)
       file = filename key
       return unless File.exist? file
 
-      File.read(file)
+      File.read(file, encoding: "utf-8")
     end
 
     # Return fetched date
     # @param key [String]
     # @return [String]
@@ -39,19 +39,19 @@
       return unless value
       if value =~ /^not_found/
         value.match(/\d{4}-\d{2}-\d{2}/).to_s
       else
         doc = Nokogiri::XML value
-        doc.at('/bibitem/fetched').text
+        doc.at('/bibitem/fetched')&.text
       end
     end
 
     # Returns all items
     # @return [Array<Hash>]
     def all
       Dir.glob("testcache/**/*.xml").sort.map do |f|
-        File.read(f)
+        File.read(f, encoding: "utf-8")
       end
     end
 
     # Delete item
     # @param key [String]
@@ -61,17 +61,17 @@
     end
 
     # Check if version of the DB match to the gem version.
     # @return [TrueClass, FalseClass]
     def check_version?
-      v = File.read @dir + "/version"
+      v = File.read @dir + "/version", encoding: "utf-8"
       v == VERSION
     end
 
     # Set version of the DB to the gem version.
     # @return [Relaton::DbCache]
     def set_version
-      File.write @dir + "/version", VERSION
+      File.write @dir + "/version", VERSION, encoding: "utf-8"
       self
     end
 
     # if cached reference is undated, expire it after 60 days
     # @param key [String]