From feda36b6589aaf535159cf09336105bc92515279 Mon Sep 17 00:00:00 2001
From: bigeagle <justin.w.xd@gmail.com>
Date: Tue, 23 Aug 2016 16:32:53 +0800
Subject: [PATCH] fix apt-download

---
 helpers/apt-download | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/helpers/apt-download b/helpers/apt-download
index 9d8f9d2..7f6bab7 100644
--- a/helpers/apt-download
+++ b/helpers/apt-download
@@ -138,6 +138,8 @@ function apt-download-binary() {
 				echo "Skipping ${pkg_filename}, size ${pkg_size}"
 			fi
 		fi
+		[[ $downloaded == true ]] && continue
+
 		for retry in `seq ${MAX_RETRY}`; do
 			echo "downloading ${pkg_url} to ${dest_filename}"
 			if [[ -z ${APT_DRY_RUN:-} ]]; then