From 7ee2c44c6a182e08bf2d5fc0bb88d8bfda4baa02 Mon Sep 17 00:00:00 2001
From: Eric Helgeson <erichelgeson@gmail.com>
Date: Mon, 21 Nov 2022 09:37:58 -0600
Subject: [PATCH] Warn user if file is fragmented

See: https://github.com/greiman/SdFat/issues/256#issuecomment-778795554
- performance can be impacted if the file is fragmented on the SD card.
---
 src/BlueSCSI.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/BlueSCSI.cpp b/src/BlueSCSI.cpp
index 579fab4..922e356 100644
--- a/src/BlueSCSI.cpp
+++ b/src/BlueSCSI.cpp
@@ -231,6 +231,10 @@ bool hddimageOpen(SCSI_DEVICE *dev, FsFile *file,int id,int lun,int blocksize)
     LOG_FILE.println(" - file is 0 bytes, can not use.");
     goto failed;
   }
+  if(!dev->m_file->isContiguous())
+  {
+    LOG_FILE.println(" - file is fragmented, see https://github.com/erichelgeson/BlueSCSI/wiki/Image-File-Fragmentation");
+  }
 
   if(dev->m_type == SCSI_DEVICE_OPTICAL) {
     LOG_FILE.print(" CDROM");