Check and format NVS partition if size has changed

Author: me-no-dev

Diff for: cores/esp32/esp32-hal-misc.c

@@ -18,6 +18,8 @@
 #include "freertos/task.h"
 #include "esp_attr.h"
 #include "nvs_flash.h"
+#include "nvs.h"
+#include "esp_partition.h"
 #include <sys/time.h>
 
 void yield()
@@ -76,7 +78,21 @@ void init() {}
 
 void initArduino()
 {
-    nvs_flash_init();
+    esp_err_t err = nvs_flash_init();
+    if(err == ESP_ERR_NVS_NO_FREE_PAGES){
+        const esp_partition_t* partition = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_DATA_NVS, NULL);
+        if (partition != NULL) {
+            err = esp_partition_erase_range(partition, 0, partition->size);
+            if(!err){
+                err = nvs_flash_init();
+            } else {
+                log_e("Failed to format the broken NVS partition!");
+            }
+        }
+    }
+    if(err) {
+        log_e("Failed to initialize NVS! Error: %u", err);
+    }
     init();
     initVariant();
 }