support filesystem ota

src/core/emsesp.cpp

@@ -1710,6 +1710,11 @@ void EMSESP::start() {
     bool factory_settings = false;
 #endif
 
+#if defined(EMSESP_DEBUG)
+    // LOG_DEBUG("Listing root directory before:");
+    // system_.listDir("/", 3); // show the contents of the root directory
+#endif
+
     // start NVS storage
     if (!nvs_.begin("ems-esp", false, "nvs1")) { // try bigger nvs partition on 16M flash first
         nvs_.begin("ems-esp", false, "nvs");     // fallback to small nvs
@@ -1724,6 +1729,11 @@ void EMSESP::start() {
     // loads core system services settings (network, mqtt, ap, ntp etc)
     esp32React.begin();
 
+#if defined(EMSESP_DEBUG)
+    // LOG_DEBUG("Listing root directory before:");
+    // system_.listDir("/", 3); // show the contents of the root directory
+#endif
+
 #ifndef EMSESP_STANDALONE
     if (factory_settings) {
         LOG_WARNING("No settings found on filesystem. Using factory settings.");

src/core/system.cpp

@@ -642,11 +642,9 @@ void System::start() {
 void System::button_OnClick(PButton & b) {
     LOG_NOTICE("Button pressed - single click");
 
-#if defined(EMSESP_TEST)
 #ifndef EMSESP_STANDALONE
     // show filesystem
-    Test::listDir(LittleFS, "/", 3);
-#endif
+    listDir("/", 3);
 #endif
 }
 
@@ -3435,4 +3433,39 @@ void System::restore_snapshot_gpios(std::vector<int8_t> & u_gpios, std::vector<i
     }
 }
 
+// show the contents of a directory in the LittleFS filesystem
+void System::listDir(const char * dirname, uint8_t levels) {
+#if defined(EMSESP_DEBUG)
+#ifndef EMSESP_STANDALONE
+
+    File root = LittleFS.open(dirname);
+    if (!root) {
+        LOG_DEBUG("Failed to open directory %s", dirname);
+        return;
+    }
+    if (!root.isDirectory()) {
+        LOG_DEBUG("%s is not a directory", dirname);
+        return;
+    }
+
+    LOG_DEBUG("(directory) %s", dirname);
+
+    File file = root.openNextFile();
+    while (file) {
+        if (file.isDirectory()) {
+            std::string line = std::string(file.name()) + "/";
+            if (levels) {
+                // prefix a / to the name to make it a full path
+                listDir(("/" + String(file.name())).c_str(), levels - 1);
+            }
+        } else {
+            std::string line = "  (file) " + std::string(file.name()) + " (" + std::to_string(file.size()) + " bytes)";
+            LOG_DEBUG("%s", line.c_str());
+        }
+        file = root.openNextFile();
+    }
+#endif
+#endif
+}
+
 } // namespace emsesp

src/core/system.h

@@ -109,6 +109,8 @@ class System {
     static void        get_value_json(JsonObject output, const std::string & circuit, const std::string & name, JsonVariant val);
     static std::string get_metrics_prometheus();
 
+    static void listDir(const char * dirname, uint8_t levels);
+
 #if defined(EMSESP_TEST)
     static bool command_test(const char * value, const int8_t id);
 #endif

src/core/telegram.h

@@ -173,7 +173,8 @@ class EMSbus {
     }
 
     static void set_ems2() {
-        isEMS2_ = true;;
+        isEMS2_ = true;
+        ;
     }
 
     static uint8_t ems_mask() {