feature: add option to configure overviewRuler

[SimonSiefke]

Fixes #85418

Demo:

overview-ruler.mp4

Changes:

Adds an option editor.overviewRulerEnabled to configure whether or not overviewRuler decorations are enabled:

• on: Show all overviewRuler decorations
• minmal: Show only search results, infos, warnings and errors
• off: Don't show overviewRuler decorations

[hediet]

CI is failing

[Destroy666x]

@hediet any progress about this highly requested feature that has a PR? I believe CI was fixed

[Copilot]

Pull request overview

Adds a new editor option to control whether the editor overview ruler renders decorations, addressing requests to reduce/disables the “busy” right-side overview ruler visuals.

Changes:

• Introduces overviewRulerEnabled ('on' | 'minimal' | 'off') as an editor option (and Monaco API surface) to control overview ruler decoration rendering.
• Filters overview ruler decorations in the view model based on the new option.
• Adjusts overview ruler rendering (border/cursor visibility) when the option is 'minimal' or 'off'.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/vs/monaco.d.ts	Exposes the new option on Monaco types and editor option IDs.
src/vs/editor/common/viewModel/viewModelImpl.ts	Filters overview ruler decorations based on the configured mode.
src/vs/editor/common/standalone/standaloneEnums.ts	Updates standalone editor option IDs to include the new option.
src/vs/editor/common/config/editorOptions.ts	Registers the new editor option and adds it to the options enum/interface.
src/vs/editor/browser/viewParts/overviewRuler/decorationsOverviewRuler.ts	Adjusts border/cursor rendering behavior based on the new mode.

Comments suppressed due to low confidence (3)

src/vs/editor/common/standalone/standaloneEnums.ts:186

• The file contains unresolved git merge-conflict markers in the EditorOption enum. This will break compilation and can lead to incorrect numeric IDs for options. Resolve the conflict and ensure the enum ordering/values stay aligned with src/vs/editor/common/config/editorOptions.ts.

	allowOverflow = 4,
	allowVariableLineHeights = 5,
	allowVariableFonts = 6,
	allowVariableFontsInAccessibilityMode = 7,
	ariaLabel = 8,
	ariaRequired = 9,

src/vs/editor/common/viewModel/viewModelImpl.ts:27

• There are unresolved merge-conflict markers in the import list. As-is this won’t compile, and the two sides also differ on importing TextDirection (used later in this file) vs IModelDecoration (used by the new filtering helper). Resolve the conflict and include all required imports without the conflict markers.

import { EndOfLinePreference, IAttachedView, ICursorStateComputer, IGlyphMarginLanesModel, IIdentifiedSingleEditOperation, type IModelDecoration, ITextModel, PositionAffinity, TrackedRangeStickiness, TextDirection } from '../model.js';
import { IActiveIndentGuideInfo, BracketGuideOptions, IndentGuide } from '../textModelGuides.js';
import { ModelDecorationMinimapOptions, ModelDecorationOptions, ModelDecorationOverviewRulerOptions } from '../model/textModel.js';
import * as textModelEvents from '../textModelEvents.js';
import { TokenizationRegistry } from '../languages.js';

src/vs/editor/common/viewModel/viewModelImpl.ts:944

• When overviewRulerEnabled is 'off', getAllOverviewRulerDecorations still calls model.getOverviewRulerDecorations(...) and then immediately discards the result. That traversal can be relatively expensive in heavily-decorated editors, and the new setting is a good opportunity to skip the work entirely. Consider checking the option up-front and returning [] before querying decorations when the setting is 'off' (and potentially before filtering when 'minimal').

		for (const decoration of filteredDecorations) {
			const decorationOptions = <ModelDecorationOptions>decoration.options;
			const opts = decorationOptions.overviewRuler;
			if (!opts) {
				continue;

---

You can also share your feedback on Copilot code review. Take the survey.