diff options
Diffstat (limited to 'lib/gitlab/diff/position_tracer.rb')
| -rw-r--r-- | lib/gitlab/diff/position_tracer.rb | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/gitlab/diff/position_tracer.rb b/lib/gitlab/diff/position_tracer.rb index 4d04f867268..e89ff238ec7 100644 --- a/lib/gitlab/diff/position_tracer.rb +++ b/lib/gitlab/diff/position_tracer.rb @@ -16,7 +16,7 @@ module Gitlab end def trace(old_position) - return unless old_diff_refs.complete? && new_diff_refs.complete? + return unless old_diff_refs&.complete? && new_diff_refs&.complete? return unless old_position.diff_refs == old_diff_refs # Suppose we have an MR with source branch `feature` and target branch `master`. @@ -82,7 +82,7 @@ module Gitlab file_diff, old_line, new_line = results - Position.new( + new_position = Position.new( old_path: file_diff.old_path, new_path: file_diff.new_path, head_sha: new_diff_refs.head_sha, @@ -91,6 +91,13 @@ module Gitlab old_line: old_line, new_line: new_line ) + + # If a position is found, but is not actually contained in the diff, for example + # because it was an unchanged line in the context of a change that was undone, + # we cannot return this as a successful trace. + return unless new_position.diff_line(repository) + + new_position end private |