From 81507039de2b0bda9d3f0e81c3ee9425a6ae6c83 Mon Sep 17 00:00:00 2001
From: Bastian Venegas <r2d2@ranvier-technologies.com>
Date: Tue, 10 Mar 2026 18:18:37 -0300
Subject: [PATCH] fix: map gitignore to ini for Shiki syntax highlighting

Shiki doesn't bundle a gitignore grammar, causing a resolveLanguage
error. Map gitignore to ini (close syntax match) in extractFenceLanguage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 apps/web/src/components/ChatMarkdown.tsx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/apps/web/src/components/ChatMarkdown.tsx b/apps/web/src/components/ChatMarkdown.tsx
index da44045c98a..f4298fc2220 100644
--- a/apps/web/src/components/ChatMarkdown.tsx
+++ b/apps/web/src/components/ChatMarkdown.tsx
@@ -66,7 +66,9 @@ const highlighterPromiseCache = new Map<string, Promise<DiffsHighlighter>>();
 
 function extractFenceLanguage(className: string | undefined): string {
   const match = className?.match(CODE_FENCE_LANGUAGE_REGEX);
-  return match?.[1] ?? "text";
+  const raw = match?.[1] ?? "text";
+  // Shiki doesn't bundle a gitignore grammar; ini is a close match (#685)
+  return raw === "gitignore" ? "ini" : raw;
 }
 
 function nodeToPlainText(node: ReactNode): string {