Desktop SD Card Scanner

//BasementResearch (10/22/18)
//With code from Arduino->Files->Examples->SD->listfiles

#include <LiquidCrystal.h>
#include <SD.h>

LiquidCrystal lcd(5,6,7,8,9,10);

File root;

void clear(){
  lcd.clear();
  lcd.setCursor(0,0);
}

void printDirectory(File dir, int numTabs) {
   while(true) {
     
     File entry =  dir.openNextFile();
     if (! entry) {
       // no more files
       //Serial.println("**nomorefiles**");
       break;
     }/*
     for (uint8_t i=0; i<numTabs; i++) {
       lcd.print(' ');
     }*/
     clear();
     lcd.print(entry.name());
     lcd.setCursor(0,1);
     if (entry.isDirectory()) {
       printDirectory(entry, numTabs+1);
     } else {
       // files have sizes, directories do not
       lcd.print("Size: ");
       lcd.println(entry.size(), DEC);
       delay(700);
       clear();
     }
     entry.close();
   }
   
}

void setup(){
  lcd.begin(16,2);
  
  
}

void loop(){
  
  lcd.setCursor(0,0);
  lcd.print("Testing card,");
  lcd.setCursor(0,1);
  lcd.print("Please wait...");
  delay(2000);
  pinMode(10, OUTPUT);
  clear();
  int y = 1;
  while(!SD.begin(4)){
    lcd.print("No card in drive...");
    lcd.setCursor(0,1);
    lcd.print("Insert card");
    lcd.setCursor(0,0);
  }clear();
  lcd.print("Card in drive,");
  lcd.setCursor(0,1);
  lcd.print("Please wait...");
  
  delay(2000);
  clear();
  root = SD.open("/");
  delay(1000);
  printDirectory(root, 0);
  clear();
   lcd.print("Please remove");
   lcd.setCursor(0,1);
   lcd.print("card from drive.");
   delay(5000);
}