From 7e5d30cda4e468735e2df2b6821192c9e30ed832 Mon Sep 17 00:00:00 2001
From: "H.Ogino" <ogino.ktai@gmail.com>
Date: Mon, 4 Nov 2019 16:49:14 +0100
Subject: [PATCH] idf.py: add encoding option

Merges https://github.com/espressif/esp-idf/pull/4106

Signed-off-by: Sergei Silnov <sergei.silnov@espressif.com>
---
 tools/idf_py_actions/tools.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/idf_py_actions/tools.py b/tools/idf_py_actions/tools.py
index bde47bd41..4d01b705c 100644
--- a/tools/idf_py_actions/tools.py
+++ b/tools/idf_py_actions/tools.py
@@ -2,6 +2,7 @@ import os
 import re
 import subprocess
 import sys
+from io import open
 
 from .constants import GENERATORS
 from .errors import FatalError
@@ -96,7 +97,7 @@ def _parse_cmakecache(path):
     CMakeCache entries also each have a "type", but this is currently ignored.
     """
     result = {}
-    with open(path) as f:
+    with open(path, encoding='utf-8') as f:
         for line in f:
             # cmake cache lines look like: CMAKE_CXX_FLAGS_DEBUG:STRING=-g
             # groups are name, type, value