From 0314e53319a2fecf65f4d31ed740f857a2ce4da3 Mon Sep 17 00:00:00 2001
From: Brent Pedersen <bpederse@gmail.com>
Date: Tue, 26 Oct 2021 16:49:03 +0200
Subject: [PATCH] add vcfanno version to header (#140)

---
 vcfanno.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vcfanno.go b/vcfanno.go
index 3cbcb83..83696a9 100644
--- a/vcfanno.go
+++ b/vcfanno.go
@@ -69,7 +69,7 @@ see: https://github.com/brentp/vcfanno
 
 `, os.Args[0])
 		flag.PrintDefaults()
-    os.Exit(2)
+		os.Exit(2)
 	}
 	queryFile := inFiles[1]
 	if !(xopen.Exists(queryFile) || queryFile == "") {
@@ -212,6 +212,7 @@ see: https://github.com/brentp/vcfanno
 	maxChunk := envGet("IRELATE_MAX_CHUNK", 8000)
 
 	// make a new writer from the string header.
+	query.Header.Extras = append(query.Header.Extras, fmt.Sprintf("##vcfanno=%s", VERSION))
 	out, err = vcfgo.NewWriter(out, query.Header)
 
 	stream := irelate.PIRelate(maxChunk, maxGap, qstream, *ends, fn, queryables...)