From: Tom Clegg <tom@tomclegg.ca>
Date: Thu, 8 Jul 2021 20:47:35 +0000 (-0400)
Subject: Fix use of nil writer.
X-Git-Url: https://git.arvados.org/lightning.git/commitdiff_plain/b15413bd40e743c2712b03d0644d9837d89bae89

Fix use of nil writer.

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tom@curii.com>
---

diff --git a/export.go b/export.go
index 685e719007..bc13ca90d5 100644
--- a/export.go
+++ b/export.go
@@ -190,15 +190,17 @@ func (cmd *exporter) RunCommand(prog string, args []string, stdin io.Reader, std
 		}
 	}
 
-	var bedout *os.File
+	var bedout io.Writer
+	var bedfile *os.File
 	var bedbufw *bufio.Writer
 	if *outputBed != "" {
-		bedout, err = os.OpenFile(*outputBed, os.O_CREATE|os.O_WRONLY, 0666)
+		bedfile, err = os.OpenFile(*outputBed, os.O_CREATE|os.O_WRONLY, 0666)
 		if err != nil {
 			return 1
 		}
-		defer bedout.Close()
-		bedbufw = bufio.NewWriter(bedout)
+		defer bedfile.Close()
+		bedbufw = bufio.NewWriterSize(bedfile, 16*1024*1024)
+		bedout = bedbufw
 	}
 
 	err = cmd.export(*outputDir, bedout, tilelib, refseq, cgs)
@@ -210,7 +212,7 @@ func (cmd *exporter) RunCommand(prog string, args []string, stdin io.Reader, std
 		if err != nil {
 			return 1
 		}
-		err = bedout.Close()
+		err = bedfile.Close()
 		if err != nil {
 			return 1
 		}