Sync bundler & rubygems

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/bundler/compact_index_client/updater.rb b/lib/bundler/compact_index_client/updater.rb
index b4b2321797..06486f98cb 100644
--- a/lib/bundler/compact_index_client/updater.rb
+++ b/lib/bundler/compact_index_client/updater.rb
@@ -50,16 +50,20 @@ module Bundler
 
           content = response.body
 
-          SharedHelpers.filesystem_access(local_temp_path) do
+          etag = (response["ETag"] || "").gsub(%r{\AW/}, "")
+          correct_response = SharedHelpers.filesystem_access(local_temp_path) do
             if response.is_a?(Net::HTTPPartialContent) && local_temp_path.size.nonzero?
               local_temp_path.open("a") {|f| f << slice_body(content, 1..-1) }
+
+              etag_for(local_temp_path) == etag
             else
               local_temp_path.open("wb") {|f| f << content }
+
+              etag.length.zero? || etag_for(local_temp_path) == etag
             end
           end
 
-          etag = (response["ETag"] || "").gsub(%r{\AW/}, "")
-          if etag.length.zero? || etag_for(local_temp_path) == etag
+          if correct_response
             SharedHelpers.filesystem_access(local_path) do
               FileUtils.mv(local_temp_path, local_path)
             end