Add deprecation warnings

Author: jterapin

gems/aws-sdk-s3/lib/aws-sdk-s3/customizations/object.rb

@@ -8,6 +8,15 @@ class Object
       # Make the method redefinable
       alias_method :copy_from, :copy_from
 
+      # @api private
+      def self.deprecation_msg(method)
+        "#################### DEPRECATION WARNING ####################\n"\
+          "Called deprecated method `#{method}` of #{self}.\n"\
+          "Use method `#{method}` from Aws::S3::TransferManager instead.\n"\
+          "#{self} support will be removed in next major version.\n"\
+          '#############################################################'
+      end
+
       # Copies another object to this object. Use `multipart_copy: true`
       # for large objects. This is required for objects that exceed 5GB.
       #
@@ -398,6 +407,7 @@ def upload_stream(options = {}, &block)
         end
         true
       end
+      deprecated(:upload_stream, message: deprecation_msg(:upload_stream))
 
       # Uploads a file from disk to the current object in S3.
       #
@@ -465,6 +475,7 @@ def upload_file(source, options = {})
         yield response if block_given?
         true
       end
+      deprecated(:upload_file, message: deprecation_msg(:upload_file))
 
       # Downloads a file in S3 to a path on disk.
       #
@@ -534,6 +545,7 @@ def download_file(destination, options = {})
         end
         true
       end
+      deprecated(:download_file, message: deprecation_msg(:download_file))
 
       class Collection < Aws::Resources::Collection
         alias_method :delete, :batch_delete!