shellrc: added mqtt plugin

Author: davidandreoletti

.oh-my-shell/oh-my-shellrc

@@ -106,6 +106,7 @@ dot_plugin_if_exists "misc"
 dot_plugin_if_exists "minikube"
 dot_plugin_if_exists "music"                        # Requires: homelab
 dot_plugin_if_exists "mv"
+dot_plugin_if_exists "mqtt"
 dot_plugin_if_exists "navi"
 dot_plugin_if_exists "network"
 #dot_plugin_if_exists "nvm"                          # Node.js environment manager    FIXME: remove plugin

.oh-my-shell/shellrc/plugins/mqtt/aliases.sh

@@ -0,0 +1,5 @@
+# Usage: mqtt_send_anon_message "localhost" "1883" "mytopic/" "my message"
+alias mqtt_send_anon_message="f_mqtt_send_anonymous_message"
+
+# Usage: tmqtt "mqtt://test.mosquitto.org" "hello/world"
+alias tmqtt='mqttui --broker '

.oh-my-shell/shellrc/plugins/mqtt/functions.sh

@@ -0,0 +1,8 @@
+function f_mqtt_send_anonymous_message() {
+	local host="$1"
+	local port="$2"
+	local topic="$3"
+	local message="$4"
+
+	mqttx pub -t "$topic" -q 1 -h "$host" -p "$port" -m "$message"
+}