From 570986485f50359424975deff8f4a554fa4bcc02 Mon Sep 17 00:00:00 2001
From: ryenus <ryenus@gmail.com>
Date: Mon, 5 Aug 2024 09:52:50 +0800
Subject: [PATCH] convert file ext to lowercase for format detection

To ensure proper file format detection with case-insensitive file
systems.
---
 pkg/yqlib/format.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkg/yqlib/format.go b/pkg/yqlib/format.go
index 49c47dfd..a0e0d02b 100644
--- a/pkg/yqlib/format.go
+++ b/pkg/yqlib/format.go
@@ -112,7 +112,7 @@ func FormatStringFromFilename(filename string) string {
 		GetLogger().Debugf("checking file extension '%s' for auto format detection", filename)
 		nPos := strings.LastIndex(filename, ".")
 		if nPos > -1 {
-			format := filename[nPos+1:]
+			format := strings.ToLower(filename[nPos+1:])
 			GetLogger().Debugf("detected format '%s'", format)
 			return format
 		}