environment.rb in symmetric-encryption-4.0.1

- old
+ new

@@ -5,18 +5,18 @@
       attr_accessor :key_env_var, :encoding
 
       # Returns [Hash] initial configuration for heroku.
       # Displays the keys that need to be added to the heroku environment.
       def self.new_config(app_name: 'symmetric-encryption',
-        environments: %i(development test release production),
-        cipher_name: 'aes-256-cbc')
+                          environments: %i[development test release production],
+                          cipher_name: 'aes-256-cbc')
 
         configs = {}
         environments.each do |environment|
           environment          = environment.to_sym
           configs[environment] =
-            if %i(development test).include?(environment)
+            if %i[development test].include?(environment)
               Keystore.dev_config
             else
               cfg = new_key_config(cipher_name: cipher_name, app_name: app_name, environment: environment)
               {
                 ciphers: [cfg]
@@ -33,21 +33,21 @@
         version >= 255 ? (version = 1) : (version += 1)
 
         kek = SymmetricEncryption::Key.new(cipher_name: cipher_name)
         dek ||= SymmetricEncryption::Key.new(cipher_name: cipher_name)
 
-        key_env_var = "#{app_name}_#{environment}_v#{version}".upcase.gsub('-', '_')
+        key_env_var = "#{app_name}_#{environment}_v#{version}".upcase.tr('-', '_')
         new(key_env_var: key_env_var, key_encrypting_key: kek).write(dek.key)
 
         {
           cipher_name:        dek.cipher_name,
           version:            version,
           key_env_var:        key_env_var,
           iv:                 dek.iv,
           key_encrypting_key: {
             key: kek.key,
-            iv:  kek.iv,
+            iv:  kek.iv
           }
         }
       end
 
       # Stores the Encryption key in an environment var.
@@ -73,18 +73,17 @@
         puts "Add the environment key to Heroku:\n\n"
         puts "  heroku config:add #{key_env_var}=#{encoder.encode(encrypted_key)}"
         puts
         puts "Or, if using environment variables on another system set the environment variable as follows:\n\n"
         puts "  export #{key_env_var}=\"#{encoder.encode(encrypted_key)}\"\n\n"
-        puts "********************************************************************************"
+        puts '********************************************************************************'
       end
 
       private
 
       # Returns [SymmetricEncryption::Encoder] the encoder to use for the current encoding.
       def encoder
         @encoder ||= SymmetricEncryption::Encoder[encoding]
       end
-
     end
   end
 end