From 4cc89a5a32bd3623a065765637d5c08641e2a251 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Mon, 3 Feb 2020 16:22:46 +0100
Subject: [PATCH] internal/build: don't crash in DownloadFile when offline
 (#20595)

---
 internal/build/download.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/internal/build/download.go b/internal/build/download.go
index c50680029..0ed0b5e13 100644
--- a/internal/build/download.go
+++ b/internal/build/download.go
@@ -83,8 +83,10 @@ func (db *ChecksumDB) DownloadFile(url, dstPath string) error {
 	fmt.Printf("downloading from %s\n", url)
 
 	resp, err := http.Get(url)
-	if err != nil || resp.StatusCode != http.StatusOK {
-		return fmt.Errorf("download error: code %d, err %v", resp.StatusCode, err)
+	if err != nil {
+		return fmt.Errorf("download error: %v", err)
+	} else if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("download error: status %d", resp.StatusCode)
 	}
 	defer resp.Body.Close()
 	if err := os.MkdirAll(filepath.Dir(dstPath), 0755); err != nil {