Directory Content doesn't work

Official Hardware Classic Yún
1

I am trying to get the directory content but apparently it doesn't work.

This is my test code:

void setup() {

Serial.begin(9600);
if (!Serial)
;

Serial.println("Setup started");

Bridge.begin();

FileSystem.begin();

File d = FileSystem.open(".", FILE_READ);

if (!d) {
Serial.println("Error opening directory");
Serial.println("Setup halted");
while(true)
;
}

d.rewindDirectory();

File f = d.openNextFile();

while(f) {

if (!f.isDirectory())
Serial.println(f.name());

f.close();

//f = d.openNextFile();
}

d.close();

Serial.println("Setup Finished");
}

Issue 1: Any path I choose for FileSystem.open, d is always false. Apparently the function is not able to open any directory

Issue 2: I get a compilation error on f = d.openNextFile():

/Applications/Arduino_1.5.4.app/Contents/Resources/Java/libraries/Bridge/src/FileIO.h: In member function 'File& File::operator=(const File&)':
/Applications/Arduino_1.5.4.app/Contents/Resources/Java/libraries/Bridge/src/FileIO.h:28: error: non-static reference member 'BridgeClass& File::bridge', can't use default assignment operator
sketch_nov09a.ino: In function 'void setup()':
sketch_nov09a.ino:40: note: synthesized method 'File& File::operator=(const File&)' first required here

Can anyone help me fixing my code ?

2

Woudn't it be easier to use :

p.runShellCommand("ls -1");
3

Hi Erni,

thank you for your answer. Your suggestion is an option, but in this way there is a lot of post processing to do.

For example, I have to ignore directories. To exclude them from the list I have to issue a command like this:

ls -l . | egrep -v ^d

and unfortunately this return a lot of information about the file that have to be stripped off:

-rwxr-xr-x    1 root     root             5 Nov  9 14:13 goofy.txt

Probably, that is the reason why the file management functions exist. They should give a direct access to the file, its informations and its content.

4

I have find this command:

ls -p . | egrep -v /$

which returns just the information I need.

Anyway, I would prefer to access directories and files via the dedicated functions.

5

Hi fab64, it looks like an issue with the cpp part of the bridge. Can you open an issue on github? Issues · arduino/Arduino · GitHub