Revert "Merge branch 'revert-satellites' into 'master' "

This reverts commit 5daf44b7c86e0e2641a902b1da8b01d91fa3dbfa, reversing
changes made to 2f706fbd231cabe7a76a5d17ac44285aaaf8592c.

1 files changed, 20 insertions, 12 deletions

diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index df1c2b78758..e317c8eac4d 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -16,9 +16,8 @@ require Rails.root.join("app/models/commit")
 class MergeRequestDiff < ActiveRecord::Base
   include Sortable
 
-  # Prevent store of diff
-  # if commits amount more then 200
-  COMMITS_SAFE_SIZE = 200
+  # Prevent store of diff if commits amount more then 500
+  COMMITS_SAFE_SIZE = 500
 
   attr_reader :commits, :diffs
 
@@ -124,12 +123,12 @@ class MergeRequestDiff < ActiveRecord::Base
     if new_diffs.any?
       if new_diffs.size > Commit::DIFF_HARD_LIMIT_FILES
         self.state = :overflow_diff_files_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
 
       if new_diffs.sum { |diff| diff.diff.lines.count } > Commit::DIFF_HARD_LIMIT_LINES
         self.state = :overflow_diff_lines_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
     end
 
@@ -160,12 +159,21 @@ class MergeRequestDiff < ActiveRecord::Base
   private
 
   def compare_result
-    @compare_result ||= CompareService.new.execute(
-      merge_request.author,
-      merge_request.source_project,
-      merge_request.source_branch,
-      merge_request.target_project,
-      merge_request.target_branch,
-    )
+    @compare_result ||=
+      begin
+        # Update ref for merge request
+        merge_request.fetch_ref
+
+        # Get latest sha of branch from source project
+        source_sha = merge_request.source_project.commit(source_branch).sha
+
+        Gitlab::CompareResult.new(
+          Gitlab::Git::Compare.new(
+            merge_request.target_project.repository.raw_repository,
+            merge_request.target_branch,
+            source_sha,
+          )
+        )
+      end
   end
 end