ESPFileUtils.cpp

#include <ESPFileUtils.h>

boolean mountFileSystem() {
  if (!LittleFS.begin()) {
    Serial.println("LittleFS mount failed");
    return false;
  }
  return true;
}

boolean fileExists(String path) {
  Serial.println("Checking if file exists: " + path);
  File file = LittleFS.open(path, "r");
  if (file) {
    Serial.println("file exists: " + path);
    file.close();
    return true;
  }
  Serial.println("file not exists: " + path);
  return false;
}

String readFile(const String path) {
  Serial.println("Reading file: " + path);

  String fileContent = "";
  File file = LittleFS.open(path, "r");
  if (!file) {
    Serial.println("Failed to open file for reading");
    return fileContent;
  }

  Serial.print("Read from file: ");
  fileContent = file.readString();
  Serial.println(fileContent);

  file.close();
  return fileContent;
}

void writeFile(String path, String message) {
  Serial.println("Writing file: " + path);

  File file = LittleFS.open(path, "w");
  if (!file) {
    Serial.println("Failed to open file for writing");
    return;
  }
  if (file.print(message)) {
    Serial.println("File written");
  } else {
    Serial.println("Write failed");
  }
  file.close();
}

boolean deleteFile(const String path) {
  Serial.println("Deleting file: " + path);

  if (LittleFS.remove(path)) {
    Serial.println("File deleted");
    return true;
  }
  Serial.println("Delete failed");
  return false;
}