Refactor out of utils

src/integrations/diagnostics/index.ts

@@ -0,0 +1,90 @@
+import * as vscode from "vscode"
+import * as path from "path"
+import deepEqual from "fast-deep-equal"
+
+export function getNewDiagnostics(
+	oldDiagnostics: [vscode.Uri, vscode.Diagnostic[]][],
+	newDiagnostics: [vscode.Uri, vscode.Diagnostic[]][]
+): [vscode.Uri, vscode.Diagnostic[]][] {
+	const newProblems: [vscode.Uri, vscode.Diagnostic[]][] = []
+	const oldMap = new Map(oldDiagnostics)
+
+	for (const [uri, newDiags] of newDiagnostics) {
+		const oldDiags = oldMap.get(uri) || []
+		const newProblemsForUri = newDiags.filter((newDiag) => !oldDiags.some((oldDiag) => deepEqual(oldDiag, newDiag)))
+
+		if (newProblemsForUri.length > 0) {
+			newProblems.push([uri, newProblemsForUri])
+		}
+	}
+
+	return newProblems
+}
+
+// Usage:
+// const oldDiagnostics = // ... your old diagnostics array
+// const newDiagnostics = // ... your new diagnostics array
+// const newProblems = getNewDiagnostics(oldDiagnostics, newDiagnostics);
+
+// Example usage with mocks:
+//
+// // Mock old diagnostics
+// const oldDiagnostics: [vscode.Uri, vscode.Diagnostic[]][] = [
+//     [vscode.Uri.file("/path/to/file1.ts"), [
+//         new vscode.Diagnostic(new vscode.Range(0, 0, 0, 10), "Old error in file1", vscode.DiagnosticSeverity.Error)
+//     ]],
+//     [vscode.Uri.file("/path/to/file2.ts"), [
+//         new vscode.Diagnostic(new vscode.Range(5, 5, 5, 15), "Old warning in file2", vscode.DiagnosticSeverity.Warning)
+//     ]]
+// ];
+//
+// // Mock new diagnostics
+// const newDiagnostics: [vscode.Uri, vscode.Diagnostic[]][] = [
+//     [vscode.Uri.file("/path/to/file1.ts"), [
+//         new vscode.Diagnostic(new vscode.Range(0, 0, 0, 10), "Old error in file1", vscode.DiagnosticSeverity.Error),
+//         new vscode.Diagnostic(new vscode.Range(2, 2, 2, 12), "New error in file1", vscode.DiagnosticSeverity.Error)
+//     ]],
+//     [vscode.Uri.file("/path/to/file2.ts"), [
+//         new vscode.Diagnostic(new vscode.Range(5, 5, 5, 15), "Old warning in file2", vscode.DiagnosticSeverity.Warning)
+//     ]],
+//     [vscode.Uri.file("/path/to/file3.ts"), [
+//         new vscode.Diagnostic(new vscode.Range(1, 1, 1, 11), "New error in file3", vscode.DiagnosticSeverity.Error)
+//     ]]
+// ];
+//
+// const newProblems = getNewProblems(oldDiagnostics, newDiagnostics);
+//
+// console.log("New problems:");
+// for (const [uri, diagnostics] of newProblems) {
+//     console.log(`File: ${uri.fsPath}`);
+//     for (const diagnostic of diagnostics) {
+//         console.log(`- ${diagnostic.message} (${diagnostic.range.start.line}:${diagnostic.range.start.character})`);
+//     }
+// }
+//
+// // Expected output:
+// // New problems:
+// // File: /path/to/file1.ts
+// // - New error in file1 (2:2)
+// // File: /path/to/file3.ts
+// // - New error in file3 (1:1)
+
+// will return empty string if no errors/warnings
+export function diagnosticsToProblemsString(diagnostics: [vscode.Uri, vscode.Diagnostic[]][], cwd: string): string {
+	let result = ""
+	for (const [uri, fileDiagnostics] of diagnostics) {
+		const problems = fileDiagnostics.filter(
+			(d) => d.severity === vscode.DiagnosticSeverity.Error || d.severity === vscode.DiagnosticSeverity.Warning
+		)
+		if (problems.length > 0) {
+			result += `\n\n${path.relative(cwd, uri.fsPath).toPosix()}`
+			for (const diagnostic of problems) {
+				let severity = diagnostic.severity === vscode.DiagnosticSeverity.Error ? "Error" : "Warning"
+				const line = diagnostic.range.start.line + 1 // VSCode lines are 0-indexed
+				const source = diagnostic.source ? `${diagnostic.source} ` : ""
+				result += `\n- [${source}${severity}] Line ${line}: ${diagnostic.message}`
+			}
+		}
+	}
+	return result.trim()
+}