From cf18f2027f8df741b499093a0974c5d88d1bbb8e Mon Sep 17 00:00:00 2001
From: Jim Madge <jmadge@turing.ac.uk>
Date: Wed, 26 Feb 2025 13:34:01 +0000
Subject: [PATCH] Don't construct CodeBlockOptions when unecessary

Co-authored-by: Angus Hollands <goosey15@gmail.com>
---
 packages/myst-directives/src/include.ts | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/packages/myst-directives/src/include.ts b/packages/myst-directives/src/include.ts
index ead40074a..b703a0073 100644
--- a/packages/myst-directives/src/include.ts
+++ b/packages/myst-directives/src/include.ts
@@ -74,12 +74,14 @@ export const includeDirective: DirectiveSpec = {
 
     const file = data.arg as string;
     const lang = (data.options?.lang as string) ?? extToLanguage(file.split('.').pop());
-    const opts = getCodeBlockOptions(
-      data,
-      vfile,
-      // Set the filename in the literal include by default
-      file.split(/\/|\\/).pop(),
-    );
+    const opts = literal
+      ? getCodeBlockOptions(
+          data,
+          vfile,
+          // Set the filename in the literal include by default
+          file.split(/\/|\\/).pop(),
+        )
+      : {};
     const filter: Include['filter'] = {};
     ensureOnlyOneOf(data, vfile, ['start-at', 'start-line', 'start-after', 'lines']);
     ensureOnlyOneOf(data, vfile, ['end-at', 'end-line', 'end-before', 'lines']);