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gui/applets: capture applet stdout/stderr and redirect to log. Closes #472

This commit is contained in:
Sebastien Bourdeauducq 2016-08-04 17:53:14 +08:00
parent f183f87840
commit 591e44b227
1 changed files with 18 additions and 2 deletions
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20
artiq/gui/applets.py
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@ -3,12 +3,15 @@ import asyncio
import sys
import string
import shlex
import os
import subprocess
from functools import partial
from itertools import count
from PyQt5 import QtCore, QtGui, QtWidgets
from artiq.protocols.pipe_ipc import AsyncioParentComm
from artiq.protocols.logging import LogParser
from artiq.protocols import pyon
from artiq.gui.tools import QDockWidgetCloseDetect
@ -106,6 +109,9 @@ class _AppletDock(QDockWidgetCloseDetect):
self.applet_name = name
self.setWindowTitle("Applet: " + name)
def _get_log_source(self):
return "applet({})".format(self.applet_name)
async def start(self):
if self.starting_stopping:
return
@ -121,12 +127,22 @@ class _AppletDock(QDockWidgetCloseDetect):
ipc_address=self.ipc.get_address().replace("\\", "\\\\")
)
logger.debug("starting command %s for %s", command, self.applet_name)
env = os.environ.copy()
env["PYTHONUNBUFFERED"] = "1"
try:
await self.ipc.create_subprocess(*shlex.split(command),
start_new_session=True)
await self.ipc.create_subprocess(
*shlex.split(command),
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
env=env, start_new_session=True)
except:
logger.warning("Applet %s failed to start", self.applet_name,
exc_info=True)
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.ipc.process.stdout))
asyncio.ensure_future(
LogParser(self._get_log_source).stream_task(
self.ipc.process.stderr))
self.ipc.start(self.embed, self.fix_initial_size)
finally:
self.starting_stopping = False