minor cleanup proposal (#4169)

* MESHTASTIC_EXCLUDE_WIFI and HAS_WIFI cleanup...
Our code was checking HAS_WIFI and the new MESHTASTIC_EXCLUDE_WIFI
flags in various places (even though EXCLUDE_WIFI forces HAS_WIFI
to 0).  Instead just check HAS_WIFI, only use EXCLUDE_WIFI inside
configuration.h

* cleanup: use HAS_NETWORKING instead of HAS_WIFI || HAS_ETHERNET
We already had HAS_NETWORKING as flag in MQTT to mean 'we have
tcpip'.  Generallize that and move it into configuration.h so that
we can use it elsewhere.

* Use #pragma once, because supported by gcc and all modern compilers
instead of #ifdef DOTHFILE_H etc...

---------

Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>

src/DebugConfiguration.cpp

@@ -26,7 +26,7 @@ SOFTWARE.*/
 
 #include "DebugConfiguration.h"
 
-#if HAS_WIFI || HAS_ETHERNET
+#if HAS_NETWORKING
 
 Syslog::Syslog(UDP &client)
 {

src/DebugConfiguration.h

@@ -1,5 +1,6 @@
-#ifndef SYSLOG_H
-#define SYSLOG_H
+#pragma once
+
+#include "configuration.h"
 
 // DEBUG LED
 #ifndef LED_INVERTED
@@ -125,7 +126,7 @@
 #include <WiFi.h>
 #endif // HAS_WIFI
 
-#if HAS_WIFI || HAS_ETHERNET
+#if HAS_NETWORKING
 
 class Syslog
 {
@@ -160,6 +161,4 @@ class Syslog
     bool vlogf(uint16_t pri, const char *appName, const char *fmt, va_list args) __attribute__((format(printf, 3, 0)));
 };
 
-#endif // HAS_ETHERNET || HAS_WIFI
-
-#endif // SYSLOG_H
+#endif // HAS_ETHERNET || HAS_WIFI

src/Power.cpp

@@ -27,7 +27,7 @@
 #if defined(DEBUG_HEAP_MQTT) && !MESHTASTIC_EXCLUDE_MQTT
 #include "mqtt/MQTT.h"
 #include "target_specific.h"
-#if !MESTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include <WiFi.h>
 #endif
 #endif

src/RedirectablePrint.cpp

@@ -16,7 +16,7 @@
 #include "platform/portduino/PortduinoGlue.h"
 #endif
 
-#if HAS_WIFI || HAS_ETHERNET
+#if HAS_NETWORKING
 extern Syslog syslog;
 #endif
 void RedirectablePrint::rpInit()
@@ -138,7 +138,7 @@ void RedirectablePrint::log_to_serial(const char *logLevel, const char *format,
 
 void RedirectablePrint::log_to_syslog(const char *logLevel, const char *format, va_list arg)
 {
-#if (HAS_WIFI || HAS_ETHERNET) && !defined(ARCH_PORTDUINO)
+#if HAS_NETWORKING && !defined(ARCH_PORTDUINO)
     // if syslog is in use, collect the log messages and send them to syslog
     if (syslog.isEnabled()) {
         int ll = 0;

src/configuration.h

@@ -242,9 +242,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define HAS_BLUETOOTH 0
 #endif
 
-#include "DebugConfiguration.h"
-#include "RF95Configuration.h"
-
 #ifndef HW_VENDOR
 #error HW_VENDOR must be defined
 #endif
@@ -290,6 +287,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define HAS_WIFI 0
 #endif
 
+// Allow code that needs internet to just check HAS_NETWORKING rather than HAS_WIFI || HAS_ETHERNET
+#define HAS_NETWORKING (HAS_WIFI || HAS_ETHERNET)
+
 // // Turn off Bluetooth
 #ifdef MESHTASTIC_EXCLUDE_BLUETOOTH
 #undef HAS_BLUETOOTH
@@ -308,4 +308,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifdef MESHTASTIC_EXCLUDE_SCREEN
 #undef HAS_SCREEN
 #define HAS_SCREEN 0
-#endif
+#endif
+
+#include "DebugConfiguration.h"
+#include "RF95Configuration.h"

src/mesh/NodeDB.cpp

@@ -26,7 +26,7 @@
 #include <vector>
 
 #ifdef ARCH_ESP32
-#if !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #endif
 #include "modules/esp32/StoreForwardModule.h"

src/mesh/http/ContentHandler.cpp

@@ -6,7 +6,7 @@
 #include "main.h"
 #include "mesh/http/ContentHelper.h"
 #include "mesh/http/WebServer.h"
-#if !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #endif
 #include "mqtt/JSON.h"

src/mesh/wifi/WiFiAPClient.cpp

@@ -1,5 +1,5 @@
 #include "configuration.h"
-#if !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "NodeDB.h"
 #include "RTC.h"
 #include "concurrency/Periodic.h"

src/modules/AdminModule.h

@@ -1,6 +1,6 @@
 #pragma once
 #include "ProtobufModule.h"
-#if HAS_WIFI && !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #endif
 

src/mqtt/MQTT.cpp

@@ -14,7 +14,7 @@
 #endif
 #include "mesh/generated/meshtastic/remote_hardware.pb.h"
 #include "sleep.h"
-#if HAS_WIFI && !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #include <WiFi.h>
 #endif
@@ -175,7 +175,7 @@ void mqttInit()
     new MQTT();
 }
 
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
 MQTT::MQTT() : concurrency::OSThread("mqtt"), pubSub(mqttClient), mqttQueue(MAX_MQTT_QUEUE)
 #else
 MQTT::MQTT() : concurrency::OSThread("mqtt"), mqttQueue(MAX_MQTT_QUEUE)
@@ -206,7 +206,7 @@ MQTT::MQTT() : concurrency::OSThread("mqtt"), mqttQueue(MAX_MQTT_QUEUE)
                 moduleConfig.mqtt.map_report_settings.publish_interval_secs, default_map_publish_interval_secs);
         }
 
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
         if (!moduleConfig.mqtt.proxy_to_client_enabled)
             pubSub.setCallback(mqttCallback);
 #endif
@@ -226,7 +226,7 @@ MQTT::MQTT() : concurrency::OSThread("mqtt"), mqttQueue(MAX_MQTT_QUEUE)
 
 bool MQTT::isConnectedDirectly()
 {
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     return pubSub.connected();
 #else
     return false;
@@ -244,7 +244,7 @@ bool MQTT::publish(const char *topic, const char *payload, bool retained)
         service.sendMqttMessageToClientProxy(msg);
         return true;
     }
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     else if (isConnectedDirectly()) {
         return pubSub.publish(topic, payload, retained);
     }
@@ -264,7 +264,7 @@ bool MQTT::publish(const char *topic, const uint8_t *payload, size_t length, boo
         service.sendMqttMessageToClientProxy(msg);
         return true;
     }
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     else if (isConnectedDirectly()) {
         return pubSub.publish(topic, payload, length, retained);
     }
@@ -284,7 +284,7 @@ void MQTT::reconnect()
             publishStatus();
             return; // Don't try to connect directly to the server
         }
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
         // Defaults
         int serverPort = 1883;
         const char *serverAddr = default_mqtt_address;
@@ -357,7 +357,7 @@ void MQTT::reconnect()
 
 void MQTT::sendSubscriptions()
 {
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     size_t numChan = channels.getNumChannels();
     for (size_t i = 0; i < numChan; i++) {
         const auto &ch = channels.getByIndex(i);
@@ -396,7 +396,7 @@ bool MQTT::wantsLink() const
 
 int32_t MQTT::runOnce()
 {
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     if (!moduleConfig.mqtt.enabled || !(moduleConfig.mqtt.map_reporting_enabled || channels.anyMqttEnabled()))
         return disable();
 

src/mqtt/MQTT.h

@@ -8,17 +8,15 @@
 #include "mqtt/JSON.h"
 #if HAS_WIFI
 #include <WiFiClient.h>
-#define HAS_NETWORKING 1
 #if !defined(ARCH_PORTDUINO)
 #include <WiFiClientSecure.h>
 #endif
 #endif
 #if HAS_ETHERNET
 #include <EthernetClient.h>
-#define HAS_NETWORKING 1
 #endif
 
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
 #include <PubSubClient.h>
 #endif
 
@@ -43,7 +41,7 @@ class MQTT : private concurrency::OSThread
 #endif
 
   public:
-#ifdef HAS_NETWORKING
+#if HAS_NETWORKING
     PubSubClient pubSub;
 #endif
     MQTT();

src/platform/esp32/main-esp32.cpp

@@ -8,7 +8,7 @@
 #include "nimble/NimbleBluetooth.h"
 #endif
 
-#if !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #endif
 
@@ -24,23 +24,22 @@
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !MESHTASTIC_EXCLUDE_BLUETOOTH
 void setBluetoothEnable(bool enable)
 {
-#ifndef MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
     if (!isWifiAvailable() && config.bluetooth.enabled == true)
+#else
+    if (config.bluetooth.enabled == true)
 #endif
-#ifdef MESHTASTIC_EXCLUDE_WIFI
-        if (config.bluetooth.enabled == true)
-#endif
-        {
-            if (!nimbleBluetooth) {
-                nimbleBluetooth = new NimbleBluetooth();
-            }
-            if (enable && !nimbleBluetooth->isActive()) {
-                nimbleBluetooth->setup();
-            }
-            // For ESP32, no way to recover from bluetooth shutdown without reboot
-            // BLE advertising automatically stops when MCU enters light-sleep(?)
-            // For deep-sleep, shutdown hardware with nimbleBluetooth->deinit(). Requires reboot to reverse
+    {
+        if (!nimbleBluetooth) {
+            nimbleBluetooth = new NimbleBluetooth();
         }
+        if (enable && !nimbleBluetooth->isActive()) {
+            nimbleBluetooth->setup();
+        }
+        // For ESP32, no way to recover from bluetooth shutdown without reboot
+        // BLE advertising automatically stops when MCU enters light-sleep(?)
+        // For deep-sleep, shutdown hardware with nimbleBluetooth->deinit(). Requires reboot to reverse
+    }
 }
 #else
 void setBluetoothEnable(bool enable) {}

src/sleep.cpp

@@ -17,7 +17,7 @@
 #ifdef ARCH_ESP32
 #include "esp32/pm.h"
 #include "esp_pm.h"
-#if !MESHTASTIC_EXCLUDE_WIFI
+#if HAS_WIFI
 #include "mesh/wifi/WiFiAPClient.h"
 #endif
 #include "rom/rtc.h"
@@ -56,7 +56,7 @@ RTC_DATA_ATTR int bootCount = 0;
  */
 void setCPUFast(bool on)
 {
-#if defined(ARCH_ESP32) && !MESHTASTIC_EXCLUDE_WIFI
+#if defined(ARCH_ESP32) && HAS_WIFI
 
     if (isWifiAvailable()) {
         /*