289 lines
7.5 KiB
C++
289 lines
7.5 KiB
C++
#include <Arduino.h>
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#include "FS.h"
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#include <LittleFS.h>
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/* You only need to format LittleFS the first time you run a
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test or else use the LITTLEFS plugin to create a partition
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https://github.com/lorol/arduino-esp32littlefs-plugin
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If you test two partitions, you need to use a custom
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partition.csv file, see in the sketch folder */
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//#define TWOPART
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#define FORMAT_LITTLEFS_IF_FAILED true
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void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
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Serial.printf("Listing directory: %s\r\n", dirname);
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File root = fs.open(dirname);
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if(!root){
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Serial.println("- failed to open directory");
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return;
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}
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if(!root.isDirectory()){
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Serial.println(" - not a directory");
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return;
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}
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File file = root.openNextFile();
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while(file){
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if(file.isDirectory()){
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Serial.print(" DIR : ");
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Serial.println(file.name());
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if(levels){
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listDir(fs, file.path(), levels -1);
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}
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} else {
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Serial.print(" FILE: ");
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Serial.print(file.name());
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Serial.print("\tSIZE: ");
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Serial.println(file.size());
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}
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file = root.openNextFile();
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}
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}
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void createDir(fs::FS &fs, const char * path){
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Serial.printf("Creating Dir: %s\n", path);
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if(fs.mkdir(path)){
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Serial.println("Dir created");
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} else {
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Serial.println("mkdir failed");
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}
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}
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void removeDir(fs::FS &fs, const char * path){
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Serial.printf("Removing Dir: %s\n", path);
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if(fs.rmdir(path)){
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Serial.println("Dir removed");
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} else {
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Serial.println("rmdir failed");
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}
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}
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void readFile(fs::FS &fs, const char * path){
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Serial.printf("Reading file: %s\r\n", path);
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File file = fs.open(path);
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if(!file || file.isDirectory()){
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Serial.println("- failed to open file for reading");
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return;
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}
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Serial.println("- read from file:");
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while(file.available()){
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Serial.write(file.read());
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}
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file.close();
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}
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void writeFile(fs::FS &fs, const char * path, const char * message){
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Serial.printf("Writing file: %s\r\n", path);
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File file = fs.open(path, FILE_WRITE);
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if(!file){
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Serial.println("- failed to open file for writing");
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return;
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}
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if(file.print(message)){
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Serial.println("- file written");
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} else {
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Serial.println("- write failed");
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}
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file.close();
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}
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void appendFile(fs::FS &fs, const char * path, const char * message){
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Serial.printf("Appending to file: %s\r\n", path);
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File file = fs.open(path, FILE_APPEND);
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if(!file){
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Serial.println("- failed to open file for appending");
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return;
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}
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if(file.print(message)){
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Serial.println("- message appended");
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} else {
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Serial.println("- append failed");
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}
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file.close();
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}
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void renameFile(fs::FS &fs, const char * path1, const char * path2){
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Serial.printf("Renaming file %s to %s\r\n", path1, path2);
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if (fs.rename(path1, path2)) {
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Serial.println("- file renamed");
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} else {
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Serial.println("- rename failed");
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}
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}
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void deleteFile(fs::FS &fs, const char * path){
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Serial.printf("Deleting file: %s\r\n", path);
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if(fs.remove(path)){
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Serial.println("- file deleted");
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} else {
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Serial.println("- delete failed");
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}
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}
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// SPIFFS-like write and delete file, better use #define CONFIG_LITTLEFS_SPIFFS_COMPAT 1
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void writeFile2(fs::FS &fs, const char * path, const char * message){
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if(!fs.exists(path)){
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if (strchr(path, '/')) {
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Serial.printf("Create missing folders of: %s\r\n", path);
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char *pathStr = strdup(path);
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if (pathStr) {
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char *ptr = strchr(pathStr, '/');
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while (ptr) {
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*ptr = 0;
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fs.mkdir(pathStr);
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*ptr = '/';
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ptr = strchr(ptr+1, '/');
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}
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}
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free(pathStr);
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}
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}
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Serial.printf("Writing file to: %s\r\n", path);
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File file = fs.open(path, FILE_WRITE);
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if(!file){
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Serial.println("- failed to open file for writing");
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return;
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}
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if(file.print(message)){
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Serial.println("- file written");
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} else {
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Serial.println("- write failed");
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}
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file.close();
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}
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void deleteFile2(fs::FS &fs, const char * path){
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Serial.printf("Deleting file and empty folders on path: %s\r\n", path);
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if(fs.remove(path)){
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Serial.println("- file deleted");
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} else {
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Serial.println("- delete failed");
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}
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char *pathStr = strdup(path);
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if (pathStr) {
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char *ptr = strrchr(pathStr, '/');
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if (ptr) {
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Serial.printf("Removing all empty folders on path: %s\r\n", path);
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}
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while (ptr) {
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*ptr = 0;
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fs.rmdir(pathStr);
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ptr = strrchr(pathStr, '/');
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}
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free(pathStr);
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}
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}
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void testFileIO(fs::FS &fs, const char * path){
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Serial.printf("Testing file I/O with %s\r\n", path);
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static uint8_t buf[512];
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size_t len = 0;
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File file = fs.open(path, FILE_WRITE);
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if(!file){
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Serial.println("- failed to open file for writing");
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return;
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}
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size_t i;
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Serial.print("- writing" );
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uint32_t start = millis();
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for(i=0; i<2048; i++){
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if ((i & 0x001F) == 0x001F){
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Serial.print(".");
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}
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file.write(buf, 512);
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}
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Serial.println("");
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uint32_t end = millis() - start;
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Serial.printf(" - %u bytes written in %u ms\r\n", 2048 * 512, end);
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file.close();
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file = fs.open(path);
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start = millis();
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end = start;
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i = 0;
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if(file && !file.isDirectory()){
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len = file.size();
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size_t flen = len;
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start = millis();
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Serial.print("- reading" );
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while(len){
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size_t toRead = len;
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if(toRead > 512){
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toRead = 512;
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}
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file.read(buf, toRead);
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if ((i++ & 0x001F) == 0x001F){
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Serial.print(".");
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}
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len -= toRead;
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}
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Serial.println("");
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end = millis() - start;
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Serial.printf("- %u bytes read in %u ms\r\n", flen, end);
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file.close();
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} else {
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Serial.println("- failed to open file for reading");
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}
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}
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void setup(){
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Serial.begin(115200);
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#ifdef TWOPART
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if(!LittleFS.begin(FORMAT_LITTLEFS_IF_FAILED, "/lfs2", 5, "part2")){
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Serial.println("part2 Mount Failed");
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return;
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}
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appendFile(LittleFS, "/hello0.txt", "World0!\r\n");
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readFile(LittleFS, "/hello0.txt");
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LittleFS.end();
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Serial.println( "Done with part2, work with the first lfs partition..." );
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#endif
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if(!LittleFS.begin(FORMAT_LITTLEFS_IF_FAILED)){
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Serial.println("LittleFS Mount Failed");
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return;
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}
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Serial.println( "SPIFFS-like write file to new path and delete it w/folders" );
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writeFile2(LittleFS, "/new1/new2/new3/hello3.txt", "Hello3");
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listDir(LittleFS, "/", 3);
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deleteFile2(LittleFS, "/new1/new2/new3/hello3.txt");
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listDir(LittleFS, "/", 3);
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createDir(LittleFS, "/mydir");
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writeFile(LittleFS, "/mydir/hello2.txt", "Hello2");
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listDir(LittleFS, "/", 1);
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deleteFile(LittleFS, "/mydir/hello2.txt");
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removeDir(LittleFS, "/mydir");
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listDir(LittleFS, "/", 1);
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writeFile(LittleFS, "/hello.txt", "Hello ");
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appendFile(LittleFS, "/hello.txt", "World!\r\n");
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readFile(LittleFS, "/hello.txt");
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renameFile(LittleFS, "/hello.txt", "/foo.txt");
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readFile(LittleFS, "/foo.txt");
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deleteFile(LittleFS, "/foo.txt");
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testFileIO(LittleFS, "/test.txt");
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deleteFile(LittleFS, "/test.txt");
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Serial.println( "Test complete" );
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}
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void loop(){
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}
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