From c859e3cd8533762b8158051b31afe837baa87a1e Mon Sep 17 00:00:00 2001
From: d-jch <141316588+d-jch@users.noreply.github.com>
Date: Wed, 22 Apr 2026 21:32:20 +0800
Subject: [PATCH] Improve mirtop stats script with GFF check

Add conditional handling for empty GFF files in mirtop stats.
---
 modules/nf-core/mirtop/stats/main.nf | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/modules/nf-core/mirtop/stats/main.nf b/modules/nf-core/mirtop/stats/main.nf
index 2c73fb745b40..517a143560b4 100644
--- a/modules/nf-core/mirtop/stats/main.nf
+++ b/modules/nf-core/mirtop/stats/main.nf
@@ -23,11 +23,17 @@ process MIRTOP_STATS {
     def args = task.ext.args ?: ''
     def prefix = task.ext.prefix ?: "${meta.id}"
     """
-    mirtop \\
-        stats \\
-        $args \\
-        --out stats \\
-        $mirtop_gff
+    mkdir -p stats
+    if grep -qv "^#" "$mirtop_gff"; then
+        mirtop \\
+            stats \\
+            $args \\
+            --out stats \\
+            $mirtop_gff
+    else
+        touch stats/mirtop_stats.txt
+        touch stats/mirtop_stats.log
+    fi
 
     mv stats/mirtop_stats.log stats/${prefix}_stats.log
     mv stats/mirtop_stats.txt stats/${prefix}_stats.txt