ESP8266 Community Forum

- Sun Mar 26, 2017 4:11 pm #64251 I've just tested the SPIFFS.rename() and it is working properly.
Maybe something else in your code that you didn't tested properly.

- Sun Mar 26, 2017 5:01 pm #64253

I've just tested the SPIFFS.rename() and it is working properly.
Maybe something else in your code that you didn't tested properly. - See more at: posting.php?mode=reply&f=6&t=14299#sthash.w2e538AQ.dpuf

I do not understand; when I list the files with listFile function, the renamed file is not listed.
Serial.println(logname.c_str() prints the String filename. Filename produced is "LOG325.TXT" is correct for month and date.



William

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ESP8266 --Data Logger and Dynamic Web Server, updated 3/26/2017.
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- Sun Mar 26, 2017 5:21 pm #64254 Oh ! I figured out something looking at your code :
You open the file before renaming it, it should not be open !
It is a bit like the file becomes locked, and rename() probably fail because of that.
Why do you need to open it ? Simply rename it, and then open the renamed version ...
(If you open it, just to write something into it, do the writes, then close it and then rename it

- Sun Mar 26, 2017 7:36 pm #64260 Removed the File log open and close; same result, "LOG325.TXT" is not listed by listFile function.

Code: Select allvoid fileStore()   //If 7th day of week, rename "log.txt" to ("log" + month + day + ".txt") and create new, empty "log.txt"
{

     getDateTime();

     // rename the file "LOG.TXT"
     String logname;
     logname = "LOG";
     logname += Clock.getMonth(Century);
     logname += Clock.getDate();
     logname += ".TXT";
     SPIFFS.rename("LOG.TXT", logname.c_str());
     Serial.println("Gets Here 2");

     //For troubleshooting
     Serial.println(logname.c_str());

     // create a new "log.txt" file for appended writing
     File log = SPIFFS.open("LOG.TXT", "a");

     if (!log)
     {
          Serial.println("file open failed");
     }
     log.println("");
     log.close();

     Serial.println("");
     Serial.println("New LOG.TXT created");

}

This is the function fileStore from the Arduino Mega 2560 that worked:

Code: Select allvoid fileStore()   //If 7th day of week, rename "log.txt" to ("log" + month + day + ".txt") and create new, empty "log.txt"
{

     // create a file and write one line to the file
     SdFile logFile("log.txt", O_WRITE | O_CREAT );

     if (!logFile.isOpen())
     {
          error("log.txt --new -open");
     }

     // rename the file log.txt
     // sd.vwd() is the volume working directory, root.

     logFileName = "";
     logFileName = "log";
     logFileName += (RTCTimedEvent.time.month);
     logFileName += (RTCTimedEvent.time.day);
     logFileName += ".txt";
     //Serial.println(logFileName.c_str());

     if(sd.exists("log.txt"))
     {
          logFile.rename(sd.vwd(), logFileName.c_str());
          logFile.close();
     }
     else
     {
          exit;
     }

     // create a new "log.txt" file for appended writing
     logFile.open("log.txt", O_WRITE | O_CREAT | O_APPEND);
     logFile.println("");
     logFile.close();

     Serial.begin(115200);

     Serial.println("");
     Serial.println("New LOG.TXT created");

     // list files
     cout << pstr("------") << endl;
     sd.ls(LS_R);

     Serial.flush();
     Serial.end();

}

William