From b09ed2d2aa18a0d5e9ac4885062d7e84350248f6 Mon Sep 17 00:00:00 2001
From: Ivan Grokhotkov <ivan@espressif.com>
Date: Mon, 4 May 2020 19:11:26 +0200
Subject: [PATCH] esptool: fix malformed json when no files are flashed

---
 components/esptool_py/flasher_args.json.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/esptool_py/flasher_args.json.in b/components/esptool_py/flasher_args.json.in
index 6b72fc9bf..2152d6877 100644
--- a/components/esptool_py/flasher_args.json.in
+++ b/components/esptool_py/flasher_args.json.in
@@ -12,7 +12,7 @@
         >
     },
     $<JOIN:$<TARGET_PROPERTY:flash,FLASH_ENTRY>,,
-    >,
+    >$<$<BOOL:$<TARGET_PROPERTY:flash,FLASH_ENTRY>>:,>
     "extra_esptool_args" : {
         "after"  : "${ESPTOOLPY_AFTER}",
         "before" : "${ESPTOOLPY_BEFORE}",