Make fuzzy diff matching configurable (and default to off)

src/core/webview/ClineProvider.ts

@@ -70,6 +70,7 @@ type GlobalStateKey =
 	| "diffEnabled"
 	| "alwaysAllowMcp"
 	| "browserLargeViewport"
+	| "fuzzyMatchThreshold"
 
 export const GlobalFileNames = {
 	apiConversationHistory: "api_conversation_history.json",
@@ -217,7 +218,8 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 		const {
 			apiConfiguration,
 			customInstructions,
-			diffEnabled
+			diffEnabled,
+			fuzzyMatchThreshold
 		} = await this.getState()
 		
 		this.cline = new Cline(
@@ -225,6 +227,7 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 			apiConfiguration,
 			customInstructions,
 			diffEnabled,
+			fuzzyMatchThreshold,
 			task,
 			images
 		)
@@ -235,7 +238,8 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 		const {
 			apiConfiguration,
 			customInstructions,
-			diffEnabled
+			diffEnabled,
+			fuzzyMatchThreshold
 		} = await this.getState()
 		
 		this.cline = new Cline(
@@ -243,6 +247,7 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 			apiConfiguration,
 			customInstructions,
 			diffEnabled,
+			fuzzyMatchThreshold,
 			undefined,
 			undefined,
 			historyItem
@@ -613,6 +618,10 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 						await this.updateGlobalState("browserLargeViewport", browserLargeViewport)
 						await this.postStateToWebview()
 						break
+					case "fuzzyMatchThreshold":
+						await this.updateGlobalState("fuzzyMatchThreshold", message.value)
+						await this.postStateToWebview()
+						break
 				}
 			},
 			null,
@@ -1062,6 +1071,7 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 			diffEnabled,
 			soundVolume,
 			browserLargeViewport,
+			fuzzyMatchThreshold,
 		] = await Promise.all([
 			this.getGlobalState("apiProvider") as Promise<ApiProvider | undefined>,
 			this.getGlobalState("apiModelId") as Promise<string | undefined>,
@@ -1101,6 +1111,7 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 			this.getGlobalState("diffEnabled") as Promise<boolean | undefined>,
 			this.getGlobalState("soundVolume") as Promise<number | undefined>,
 			this.getGlobalState("browserLargeViewport") as Promise<boolean | undefined>,
+			this.getGlobalState("fuzzyMatchThreshold") as Promise<number | undefined>,
 		])
 
 		let apiProvider: ApiProvider
@@ -1158,6 +1169,7 @@ export class ClineProvider implements vscode.WebviewViewProvider {
 			diffEnabled: diffEnabled ?? false,
 			soundVolume,
 			browserLargeViewport: browserLargeViewport ?? false,
+			fuzzyMatchThreshold: fuzzyMatchThreshold ?? 1.0,
 		}
 	}