[Question] How to get the current path of pty

[supersuraccoon]

Thanks for your great work now I am trying to learn and build something cool based on your project.

And now I am facing a problem that I can not solve myself after doing a lot researches...

Let's say the starting path is /User/Example/App

and then the command input sequence from web side is :

cd ..
cd ..

And now the current path should be at /User but how can I get this path using code ?

Any advice will be appreciated, thanks :)

[cs01]

When you say “get this path” what do you mean?

I suppose you could run ‘pwd’ In the terminal.

[supersuraccoon]

thanks for your quick reply

Let me put my question in a better context:

When I type ls I can get a list of file in the web terminal and now I want to open image files when user click it in the web terminal.

I have achieved this using xterm.js's registerLinkMatcher function like this:

term.registerLinkMatcher(/\w+.png/, function (mouseEvent, imageFile) {
  	console.log(imageFile);
  	socketPfile.emit("pfile-input", imageFile);
});

When user click say cat.png the registerLinkMatcher will triggered and then I will send a command to python.

But the problem is the value of imageFile here is only the name of the file cat.png (not path) so on the python side with the code:

@socketio.on("pfile-input", namespace="/pfile")
def pimage_input(data):
    result = os.popen(data["input"])
    with open(data, 'rb') as f:
        image_data = f.read()
        socketio.emit("pfile-output", {"output": image_data}, namespace="/pfile")

I need the full path of the input data cat.png (the user on the web terminal side might have typed cd xxx , cd xxx to change directory several times) which means I need to find a way to know the current path of the pty (I don't know how to say it in a proper way ....) .

[cs01]

Ah I see. I don't think there is a way to do that as you described because bash is running as a subprocess, and only it knows which directory it's in (the pty doesn't even know what bash is doing or which directory the user navigated to, it's just running bash as a subprocess and waiting for it to exit. It could be running any other subprocess like zsh, gdb, python, cat, less, etc).

I would suggest registering a link matcher on the full path rather than the filename. That way when the link matcher is triggered it's always to a full path and you can open it on the server in a more straightforward way.