From ea051b7f3ce7a210f91a174c5ab335fd3f7b5173 Mon Sep 17 00:00:00 2001
From: Lars Kruse <devel@sumpfralle.de>
Date: Tue, 23 Jul 2019 21:07:05 +0200
Subject: [PATCH] Plugin bitcoind_: use defaults for missing environment
 variables

Previously undefined environment variables were treated as "None"
instead of using the supplied defaults (e.g. for "rpchost" or
"rpcport").
---
 plugins/currency/bitcoin/bitcoind_ | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/plugins/currency/bitcoin/bitcoind_ b/plugins/currency/bitcoin/bitcoind_
index 8a5c9d76..cf938d9e 100755
--- a/plugins/currency/bitcoin/bitcoind_
+++ b/plugins/currency/bitcoin/bitcoind_
@@ -174,7 +174,9 @@ def parse_conf(filename):
 def get_env_options(*vars):
     options = Options()
     for var in vars:
-        options[var] = os.getenv(var)
+        value = os.getenv(var)
+        if value is not None:
+            options[var] = os.getenv(var)
     return options