48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
from app.logger import on_flush
|
|
import os
|
|
|
|
|
|
class TerminalService:
|
|
def __init__(self, server):
|
|
self.server = server
|
|
self.cols = None
|
|
self.rows = None
|
|
self.subscriptions = set()
|
|
on_flush(self.send_messages)
|
|
|
|
def update_size(self):
|
|
sz = os.get_terminal_size()
|
|
changed = False
|
|
if sz.columns != self.cols:
|
|
self.cols = sz.columns
|
|
changed = True
|
|
|
|
if sz.lines != self.rows:
|
|
self.rows = sz.lines
|
|
changed = True
|
|
|
|
if changed:
|
|
return {"cols": self.cols, "rows": self.rows}
|
|
|
|
return None
|
|
|
|
def subscribe(self, client_id):
|
|
self.subscriptions.add(client_id)
|
|
|
|
def unsubscribe(self, client_id):
|
|
self.subscriptions.discard(client_id)
|
|
|
|
def send_messages(self, entries):
|
|
if not len(entries) or not len(self.subscriptions):
|
|
return
|
|
|
|
new_size = self.update_size()
|
|
|
|
for client_id in self.subscriptions.copy(): # prevent: Set changed size during iteration
|
|
if client_id not in self.server.sockets:
|
|
# Automatically unsub if the socket has disconnected
|
|
self.unsubscribe(client_id)
|
|
continue
|
|
|
|
self.server.send_sync("logs", {"entries": entries, "size": new_size}, client_id)
|