Detect code omission and show warning with troubleshooting link

src/integrations/editor/detect-omission.ts

@@ -0,0 +1,52 @@
+import * as vscode from "vscode"
+
+/**
+ * Detects potential AI-generated code omissions in the given file content.
+ * @param fileContent The content of the file to check.
+ * @returns True if a potential omission is detected, false otherwise.
+ */
+function detectCodeOmission(fileContent: string): boolean {
+	const lines = fileContent.split("\n")
+	const omissionKeywords = ["remain", "remains", "unchanged", "rest", "existing", "previous", "..."]
+
+	const commentPatterns = [
+		/^\s*\/\//, // Single-line comment for most languages
+		/^\s*#/, // Single-line comment for Python, Ruby, etc.
+		/^\s*{\s*\/\*/, // JSX comment opening
+		/^\s*<!--/, // HTML comment opening
+	]
+
+	for (const line of lines) {
+		if (commentPatterns.some((pattern) => pattern.test(line))) {
+			const words = line.toLowerCase().split(/\s+/)
+			if (omissionKeywords.some((keyword) => words.includes(keyword))) {
+				return true
+			}
+		}
+	}
+
+	return false
+}
+
+/**
+ * Shows a warning in VSCode if a potential code omission is detected.
+ * @param fileContent The content of the file to check.
+ */
+export function showOmissionWarning(fileContent: string): void {
+	if (detectCodeOmission(fileContent)) {
+		vscode.window
+			.showWarningMessage(
+				"Potential code truncation detected. This happens when the AI reaches its max output limit.",
+				"Follow this guide to fix the issue"
+			)
+			.then((selection) => {
+				if (selection === "Follow this guide to fix the issue") {
+					vscode.env.openExternal(
+						vscode.Uri.parse(
+							"https://github.com/cline/cline/wiki/Troubleshooting-%E2%80%90-Cline-Deleting-Code-with-%22Rest-of-Code-Here%22-Comments"
+						)
+					)
+				}
+			})
+	}
+}