Handle terminal resize

[btwiuse]

Is your feature request related to a problem? Please describe.

Currently zasper web terminal doesn't resize to fit the window

Describe the solution you'd like

Make the terminal backend handle resize events emitted from the xterm.js frontend

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

• Manually resize using the resize command
• The terminal wire format currently in use comes from xterm-addon-attach, which is incompatible with https://github.com/jupyter/terminado used by Jupyter. Maybe zasper should move to the latter format

Additional context

[prasunanand]

Thanks @btwiuse for filing the issue. I am not using terminado for running Terminals.

Which OS are you using ? Are you running Zasper as an electron app or web app ?

[btwiuse]

I compiled it from source on macOS Sequoia 15.2 with latest master branch, started as a web app via ./zasper

Thanks @btwiuse for filing the issue. I am not using terminado for running Terminals.

Which OS are you using ? Are you running Zasper as an electron app or web app ?

[prasunanand]

Default shell for mac should be zsh detected on runtime. I am unable to reproduce on my mac Sequoia 15.1.1.

[btwiuse]

Actually this bug was also reproducible on any linux server.

I created a branch with .devcontainer.json, so you can directly view it in GitHub Codespace:

Create a new workspace and wait ~5 minutes until zasper -debug runs

Open the forwarded address, choose new terminal, open tmux in it, and resize browser window or the terminal

You can see the inner tmux window doesn't resize

[btwiuse]

As a side note I also changed the ui to use relative paths instead of hardcoded (http|ws)://localhost:8084 urls (btwiuse@d329ba3), otherwise the codespace reverse proxy won't rewrite the hostname automatically.

I believe the hardcoded hostname should be avoided in frontend ui. Maybe this deserves a separate issue

[prasunanand]

As a side note I also changed the ui to use relative paths instead of hardcoded (http|ws)://localhost:8084 urls (btwiuse@d329ba3), otherwise the codespace reverse proxy won't rewrite the hostname automatically.

I believe the hardcoded hostname should be avoided in frontend ui. Maybe this deserves a separate issue

Thanks for pointing it out.

[prasunanand]

Actually this bug was also reproducible on any linux server.
....
You can see the inner tmux window doesn't resize

Thanks @btwiuse , I will look into tmux support.