Function readSmallFile

src/core/sd_functions.cpp:380–398

** Function name: readSmallFile ** Description: read a small (<3KB) file and return its contents as a single string ** on any error returns an empty string ***************************************************************************************/

**                on any error returns an empty string
***************************************************************************************/
String readSmallFile(FS &fs, String filepath) {
    String fileContent = "";
    File file;

    file = fs.open(filepath, FILE_READ);
    if (!file) return "";

    size_t fileSize = file.size();
    if (fileSize > SAFE_STACK_BUFFER_SIZE || fileSize > ESP.getFreeHeap()) {
        displayError("File is too big", true);
        return "";
    }
    // TODO: if(psramFound()) -> use PSRAM instead

    fileContent = file.readString();

    file.close();
    return fileContent;
}

/***************************************************************************************
** Function name: readFile