From 0cf5045426966583fa3580cc66d8a4ce996be266 Mon Sep 17 00:00:00 2001
From: Guillaume Flambard <g.flambard@gmail.com>
Date: Mon, 27 Jul 2026 13:45:31 +0200
Subject: [PATCH 1/2] fix(core): recognise Windows backslash paths in
 grep_search output
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`formatGrepSearchResults` detected ripgrep file headings with
`line.startsWith("./")`. On Windows ripgrep emits `.\dir\file` instead of
`./dir/file`, so no line was ever recognised as a heading, `numResults` stayed
0, and every match was silently discarded — grep_search always returned "no
results" on Windows even though ripgrep found matches.

Also accept the `.\` prefix. POSIX `./` headings and the `--` context
separator are unchanged. Adds a unit test covering backslash-separated output.

Fixes #13027
---
 core/util/grepSearch.ts        |  4 +++-
 core/util/grepSearch.vitest.ts | 18 ++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/core/util/grepSearch.ts b/core/util/grepSearch.ts
index be5b7ee082f..09051dc13bd 100644
--- a/core/util/grepSearch.ts
+++ b/core/util/grepSearch.ts
@@ -57,7 +57,9 @@ export function formatGrepSearchResults(
 
   let resultLines: string[] = [];
   for (const line of results.split("\n").filter((l) => !!l)) {
-    if (line.startsWith("./") || line === "--") {
+    // ripgrep headings start with the relative path: "./" on POSIX, ".\" on Windows.
+    // Only checking "./" silently discarded every match on Windows (#13027).
+    if (line.startsWith("./") || line.startsWith(".\\") || line === "--") {
       processResult(resultLines); // process previous result
       resultLines = [line];
       numResults++;
diff --git a/core/util/grepSearch.vitest.ts b/core/util/grepSearch.vitest.ts
index df1a71efd82..aae7270caea 100644
--- a/core/util/grepSearch.vitest.ts
+++ b/core/util/grepSearch.vitest.ts
@@ -215,3 +215,21 @@ test("decreases indentation when original is more than 2 spaces", () => {
   expect(result.formatted).toContain("    tooMuchIndent();");
   expect(result.formatted).toContain("  }");
 });
+
+test("parses Windows ripgrep output with backslash path separators", () => {
+  // On Windows, ripgrep emits headings like `.\dir\file.ext` instead of `./dir/file.ext`.
+  // The parser must recognise those as file headers, otherwise every match is discarded (#13027).
+  const windowsOutput = [
+    ".\\src\\program.cs",
+    '        Console.WriteLine("Hello World!");',
+    "--",
+    ".\\test\\calc.kt",
+    "    fun subtract(number: Double): Test {",
+  ].join("\n");
+
+  const result = formatGrepSearchResults(windowsOutput);
+
+  expect(result.numResults).toBeGreaterThan(0);
+  expect(result.formatted).toContain("program.cs");
+  expect(result.formatted).toContain("calc.kt");
+});

From 6b1e05752da5c7c5ac24f3975406c96d82ac986e Mon Sep 17 00:00:00 2001
From: Guillaume Flambard <g.flambard@gmail.com>
Date: Mon, 27 Jul 2026 16:28:05 +0200
Subject: [PATCH 2/2] chore: re-trigger CI (flaky darwin build + jetbrains
 autocomplete test)