From a4923837565c77537d644fb5df5ed80d6973e371 Mon Sep 17 00:00:00 2001
From: Carlos Scheidegger <carlos.scheidegger@rstudio.com>
Date: Fri, 15 Mar 2024 13:36:38 -0700
Subject: [PATCH] don't create xref index on single-file projects

---
 src/command/render/crossref.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/command/render/crossref.ts b/src/command/render/crossref.ts
index 9699cdf2fb..97f4c7ef4f 100644
--- a/src/command/render/crossref.ts
+++ b/src/command/render/crossref.ts
@@ -42,7 +42,7 @@ export function crossrefFilterParams(
       // validation
       if (option === kNumberOffset) {
         // coerce scalar number-offset to array
-        if (typeof (value) === "number") {
+        if (typeof value === "number") {
           value = [value];
         }
         // validate we have an array
@@ -66,7 +66,7 @@ export function crossrefFilterParams(
   params[kNumberDepth] = metadata?.[kNumberDepth];
 
   // always create crossref index for projects
-  if (options.project) {
+  if (!options.project?.isSingleFile) {
     // if its a book then only write for multi-file (as otherwise all of the
     // crossref entries will end in a single index file)
     if (