nes: fix: skip noop diffs from diff history#311932
Merged
Conversation
Contributor
There was a problem hiding this comment.
Pull request overview
This PR updates the Copilot “NES” diff-history prompt generation to avoid emitting diff hunks that represent no actual change (i.e., old and new lines are identical), reducing noise in the prompt content.
Changes:
- Skip “no-op” diff hunks where
oldLinesandnewLinesare identical. - Preserve existing behavior for skipping all-whitespace/empty-content hunks and returning
nullwhen a document has no remaining hunks.
Show a summary per file
| File | Description |
|---|---|
| extensions/copilot/src/extension/xtab/common/diffHistoryForPrompt.ts | Filters out no-op hunks during doc diff construction so prompt diff history doesn’t include redundant entries. |
Copilot's findings
- Files reviewed: 1/1 changed files
- Comments generated: 0
Contributor
blocks-ci screenshots changedReplace the contents of Updated blocks-ci-screenshots.md<!-- auto-generated by CI — do not edit manually -->
#### editor/codeEditor/CodeEditor/Dark
#### editor/codeEditor/CodeEditor/Light
#### editor/inlineChatZoneWidget/InlineChatZoneWidget/Dark
#### editor/inlineChatZoneWidget/InlineChatZoneWidget/Light
#### editor/inlineChatZoneWidget/InlineChatZoneWidgetTerminated/Dark
#### editor/inlineChatZoneWidget/InlineChatZoneWidgetTerminated/Light
 |
Yoyokrazy
approved these changes
Apr 22, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
No description provided.