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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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@ -3,12 +3,15 @@ import asyncio
import sys import sys
import string import string
import shlex import shlex
import os
import subprocess
from functools import partial from functools import partial
from itertools import count from itertools import count
from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5 import QtCore, QtGui, QtWidgets
from artiq.protocols.pipe_ipc import AsyncioParentComm from artiq.protocols.pipe_ipc import AsyncioParentComm
from artiq.protocols.logging import LogParser
from artiq.protocols import pyon from artiq.protocols import pyon
from artiq.gui.tools import QDockWidgetCloseDetect from artiq.gui.tools import QDockWidgetCloseDetect
@ -106,6 +109,9 @@ class _AppletDock(QDockWidgetCloseDetect):
self.applet_name = name self.applet_name = name
self.setWindowTitle("Applet: " + name) self.setWindowTitle("Applet: " + name)
def _get_log_source(self):
return "applet({})".format(self.applet_name)
async def start(self): async def start(self):
if self.starting_stopping: if self.starting_stopping:
return return
@ -121,12 +127,22 @@ class _AppletDock(QDockWidgetCloseDetect):
ipc_address=self.ipc.get_address().replace("\\", "\\\\") ipc_address=self.ipc.get_address().replace("\\", "\\\\")
) )
logger.debug("starting command %s for %s", command, self.applet_name) logger.debug("starting command %s for %s", command, self.applet_name)
env = os.environ.copy()
env["PYTHONUNBUFFERED"] = "1"
try: try:
await self.ipc.create_subprocess(*shlex.split(command), await self.ipc.create_subprocess(
start_new_session=True) *shlex.split(command),
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
env=env, start_new_session=True)
except: except:
logger.warning("Applet %s failed to start", self.applet_name, logger.warning("Applet %s failed to start", self.applet_name,
exc_info=True) 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) self.ipc.start(self.embed, self.fix_initial_size)
finally: finally:
self.starting_stopping = False self.starting_stopping = False