From 0431bbaa8b5df4dbde27f91808064d3887512faf Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Tue, 24 Oct 2023 11:51:39 +0800
Subject: [PATCH] cabana: set the COMMA_CACHE environment variable (#29849)

* set COMMA_CACHE enviroment

* use /tmp/comma_donwloand_cache
---
 tools/cabana/streams/replaystream.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/cabana/streams/replaystream.cc b/tools/cabana/streams/replaystream.cc
index 2e580c0f0d..550e2be6a3 100644
--- a/tools/cabana/streams/replaystream.cc
+++ b/tools/cabana/streams/replaystream.cc
@@ -8,10 +8,13 @@
 
 ReplayStream::ReplayStream(QObject *parent) : AbstractStream(parent) {
   unsetenv("ZMQ");
+  setenv("COMMA_CACHE", "/tmp/comma_download_cache", 1);
+
   // TODO: Remove when OpenpilotPrefix supports ZMQ
 #ifndef __APPLE__
   op_prefix = std::make_unique<OpenpilotPrefix>();
 #endif
+
   QObject::connect(&settings, &Settings::changed, [this]() {
     if (replay) replay->setSegmentCacheLimit(settings.max_cached_minutes);
   });