def start(cmd, input=None, **kwds):
kwds['stdout'] = PIPE
kwds['stderr'] = PIPE
if input is None and 'stdin' not in kwds:
kwds['stdin'] = None
else:
kwds['stdin'] = PIPE
proc = yield From(asyncio.create_subprocess_shell(cmd, **kwds))
tasks = []
if input is not None:
tasks.append(send_input(proc.stdin, input))
else:
print('No stdin')
if proc.stderr is not None:
tasks.append(log_errors(proc.stderr))
else:
print('No stderr')
if proc.stdout is not None:
tasks.append(read_stdout(proc.stdout))
else:
print('No stdout')
if tasks:
# feed stdin while consuming stdout to avoid hang
# when stdin pipe is full
yield From(asyncio.wait(tasks))
exitcode = yield From(proc.wait())
print("exit code: %s" % exitcode)
def test_start_new_session(self):
def start_new_session():
os.setsid()
# start the new process in a new session
create = asyncio.create_subprocess_shell("exit 8", preexec_fn=start_new_session, loop=self.loop)
proc = self.loop.run_until_complete(create)
exitcode = self.loop.run_until_complete(proc.wait())
self.assertEqual(exitcode, 8)
def test_start_new_session(self):
def start_new_session():
os.setsid()
# start the new process in a new session
create = asyncio.create_subprocess_shell('exit 8',
preexec_fn=start_new_session,
loop=self.loop)
proc = self.loop.run_until_complete(create)
exitcode = self.loop.run_until_complete(proc.wait())
self.assertEqual(exitcode, 8)
def cat(loop):
proc = yield From(
asyncio.create_subprocess_shell("cat", stdin=PIPE, stdout=PIPE))
print("pid: %s" % proc.pid)
message = "Hello World!"
print("cat write: %r" % message)
stdout, stderr = yield From(proc.communicate(message.encode('ascii')))
print("cat read: %r" % stdout.decode('ascii'))
exitcode = yield From(proc.wait())
print("(exit code %s)" % exitcode)
def _run_deploy_process(self, addr):
# subprocess_exec is broken in gbulb/base_events.py, so use shell
deploy_cmd = "RHOST=%s %s start" % (
'odroid@' + addr,
os.path.join(
os.path.dirname(__file__), 'deploy-vserver.sh'))
logger = logging.getLogger('deploy')
logger.warning('Running: %s', deploy_cmd)
# We would like to capture stdout/stderr and redirect to logger, so that
# we properly record deploy error messages, but gbulb seems to be
# broken.
proc = yield From(
asyncio.create_subprocess_shell(
deploy_cmd,
close_fds=True,
#stdin=open('/dev/stdin', 'r'),
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.STDOUT
))
recent = list()
_LOG_RE = re.compile(
r'^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][.][0-9]{3} '
r'\[[A-Z]\] ')
started = False
while True:
line = yield From(proc.stdout.readline())
if line == '':
break
line = vui_helpers.sanitize_stdout(line)
if not (started and _LOG_RE.match(line)):
# To avoid double-display of logs, suppress what looks like
# log messages, and only show them if deply fails.
logger.info(line)
else:
recent.append(line)
while len(recent) > 100: recent.pop(0)
if '*** Live logs ***' in line:
started = True
retcode = yield From(proc.wait())
if retcode != 0:
logger.warning('Replaying suppressed lines')
for line in recent:
logger.info('| ' + line)
logger.warning('Process exited, code %r', retcode)
assert retcode == 0, 'Deploy returned failing error code'
assert started, 'Server process never got started'
def _run_deploy_process(self, addr):
# subprocess_exec is broken in gbulb/base_events.py, so use shell
deploy_cmd = "RHOST=%s %s start" % (
'odroid@' + addr,
os.path.join(os.path.dirname(__file__), 'deploy-vserver.sh'))
logger = logging.getLogger('deploy')
logger.warning('Running: %s', deploy_cmd)
# We would like to capture stdout/stderr and redirect to logger, so that
# we properly record deploy error messages, but gbulb seems to be
# broken.
proc = yield From(
asyncio.create_subprocess_shell(
deploy_cmd,
close_fds=True,
#stdin=open('/dev/stdin', 'r'),
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.STDOUT))
recent = list()
_LOG_RE = re.compile(r'^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][.][0-9]{3} '
r'\[[A-Z]\] ')
started = False
while True:
line = yield From(proc.stdout.readline())
if line == '':
break
line = vui_helpers.sanitize_stdout(line)
if not (started and _LOG_RE.match(line)):
# To avoid double-display of logs, suppress what looks like
# log messages, and only show them if deply fails.
logger.info(line)
else:
recent.append(line)
while len(recent) > 100:
recent.pop(0)
if '*** Live logs ***' in line:
started = True
retcode = yield From(proc.wait())
if retcode != 0:
logger.warning('Replaying suppressed lines')
for line in recent:
logger.info('| ' + line)
logger.warning('Process exited, code %r', retcode)
assert retcode == 0, 'Deploy returned failing error code'
assert started, 'Server process never got started'
def test_shell(self):
create = asyncio.create_subprocess_shell('exit 7',
loop=self.loop)
proc = self.loop.run_until_complete(create)
exitcode = self.loop.run_until_complete(proc.wait())
self.assertEqual(exitcode, 7)