VFS_LittleFS.h

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#pragma once
#include <string.h>
#include <sys/stat.h>
#include <sys/unistd.h>
 
#include "AudioTools/Disk/VFS.h"
#include "esp_err.h"
#include "esp_littlefs.h"
#include "esp_system.h"
 
namespace audio_tools {
 
class VFS_LittleFS : public VFS {
 public:
  VFS_LittleFS(const char* mountPoint = "/littlefs") {
    mount_point = mountPoint;
  };
  void setMountPoint(const char* mp) { mount_point = mp; }
  bool begin() {
    LOGI("Initializing LittleFS");
 
    esp_vfs_littlefs_conf_t conf = {
        .base_path = mount_point,
        .partition_label = "storage",
        .format_if_mount_failed = format_if_mount_failed,
        .dont_mount = false,
    };
 
    // Use settings defined above to initialize and mount LittleFS filesystem.
    // Note: esp_vfs_littlefs_register is an all-in-one convenience function.
    esp_err_t ret = esp_vfs_littlefs_register(&conf);
 
    if (ret != ESP_OK) {
      if (ret == ESP_FAIL) {
        LOGE("Failed to mount or format filesystem");
      } else if (ret == ESP_ERR_NOT_FOUND) {
        LOGE("Failed to find LittleFS partition");
      } else {
        LOGE("Failed to initialize LittleFS (%s)", esp_err_to_name(ret));
      }
      return false;
    }
 
    size_t total = 0, used = 0;
    ret = esp_littlefs_info(conf.partition_label, &total, &used);
    if (ret != ESP_OK) {
      LOGE("Failed to get LittleFS partition information (%s)",
           esp_err_to_name(ret));
      // esp_littlefs_format(conf.partition_label);
      return false;
    } else {
      LOGI("Partition size: total: %d, used: %d", total, used);
    }
 
    return true;
  }
 
  void end() {
    // All done, unmount partition and disable SPIFFS
    // All done, unmount partition and disable LittleFS
    esp_vfs_littlefs_unregister(conf.partition_label);
    LOGI("LittleFS unmounted");
  }
 
 protected:
  esp_vfs_littlefs_conf_t conf;
  int max_files = 5;
  bool format_if_mount_failed = true;
};
}  // namespace audio_tools