Autodiscovery: add "mqtt retain" config flag

bitfliq · May 25, 2021 · 41b6e03 · 41b6e03
1 parent 39cead5
commit 41b6e03
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Showing 4 changed files with 14 additions and 2 deletions.
diff --git a/rtl_433_mqtt_autodiscovery/CHANGELOG.md b/rtl_433_mqtt_autodiscovery/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [0.1.8] - 2021-05-24
+
+- Add "MQTT retain" flag
+
 ## [0.1.7] - 2021-03-17
 
 - Remove old `device_class` `"moisture"`, `"safety"` and `"depth"` from whatever devices are still using them

diff --git a/rtl_433_mqtt_autodiscovery/README.md b/rtl_433_mqtt_autodiscovery/README.md
@@ -91,6 +91,7 @@ To install this Home Assistant add-on you need to add the rtl_433 add-on reposit
   * `mqtt_port`
   * `mqtt_user`
   * `mqtt_password`
+  * `mqtt_retain`: MQTT broker will retain configuration topics between restarts if this is set to true. Default is `false`.
   * `rtl_topic`: MQTT topic where rtl_433 is publishing its output. Default is "rtl_433".
   * `discovery_prefix`: MQTT topic prefix where Home Assistant is [looking for discovery information](https://www.home-assistant.io/docs/mqtt/discovery/#discovery_prefix). Default is "homeassistant".
   * `discovery_interval`: how often to publish discovery information, in seconds. Default is 600.

diff --git a/rtl_433_mqtt_autodiscovery/config.json b/rtl_433_mqtt_autodiscovery/config.json
@@ -1,6 +1,6 @@
 {
   "name": "rtl_433 MQTT Auto Discovery",
-  "version": "0.1.7",
+  "version": "0.1.8",
   "slug": "rtl433mqttautodiscovery",
   "description": "Automatic discovery of rtl_433 device information via MQTT",
   "url": "https://github.com/pbkhrv/rtl_433-hass-addons/tree/main/rtl_433_mqtt_autodiscovery",
@@ -12,6 +12,7 @@
     "mqtt_port": 1883,
     "mqtt_user": "",
     "mqtt_password": "",
+    "mqtt_retain": false,
     "rtl_topic": "rtl_433/+/events",
     "discovery_prefix": "homeassistant",
     "discovery_interval": 600
@@ -21,6 +22,7 @@
     "mqtt_port": "int",
     "mqtt_user": "str",
     "mqtt_password": "str",
+    "mqtt_retain": "bool",
     "rtl_topic": "str",
     "discovery_prefix": "str",
     "discovery_interval": "int"

diff --git a/rtl_433_mqtt_autodiscovery/run.sh b/rtl_433_mqtt_autodiscovery/run.sh
@@ -8,5 +8,10 @@ RTL_TOPIC=$(bashio::config "rtl_topic")
 DISCOVERY_PREFIX=$(bashio::config "discovery_prefix")
 DISCOVERY_INTERVAL=$(bashio::config "discovery_interval")
 
+OTHER_ARGS=""
+if bashio::config.true "mqtt_retain"; then
+  OTHER_ARGS="${OTHER_ARGS} --retain"
+fi
+
 echo "Starting rtl_433_mqtt_hass.py..."
-python3 /rtl_433_mqtt_hass.py -d -u $MQTT_USER -P $MQTT_PASS -H $MQTT_HOST -p $MQTT_PORT -R "$RTL_TOPIC" -D "$DISCOVERY_PREFIX" -i $DISCOVERY_INTERVAL
+python3 /rtl_433_mqtt_hass.py -d -u $MQTT_USER -P $MQTT_PASS -H $MQTT_HOST -p $MQTT_PORT -R "$RTL_TOPIC" -D "$DISCOVERY_PREFIX" -i $DISCOVERY_INTERVAL $OTHER_ARGS