authentication: register global shared session key used for external authentication session data storeage....
authentication: register global shared session key used for external authentication session data storeage. - We'll have more plugins not only oauth so this should be a constant name, instead of repating the same name all over the code.

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rcserver.py
1025 lines | 32.2 KiB | text/x-python | PythonLexer
project: added all source files and assets
r1 # (c) 2005 Ian Bicking and contributors; written for Paste
# (http://pythonpaste.org) Licensed under the MIT license:
# http://www.opensource.org/licenses/mit-license.php
#
# For discussion of daemonizing:
# http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/278731
#
# Code taken also from QP: http://www.mems-exchange.org/software/qp/ From
# lib/site.py
import atexit
import errno
import fnmatch
import logging
import optparse
import os
import re
Martin Bornhold
subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 import subprocess32
project: added all source files and assets
r1 import sys
import textwrap
import threading
import time
import traceback
from logging.config import fileConfig
import ConfigParser as configparser
from paste.deploy import loadserver
from paste.deploy import loadapp
import rhodecode
from rhodecode.lib.compat import kill
def make_web_build_callback(filename):
Martin Bornhold
subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 p = subprocess32.Popen('make web-build', shell=True,
stdout=subprocess32.PIPE,
stderr=subprocess32.PIPE,
project: added all source files and assets
r1 cwd=os.path.dirname(os.path.dirname(__file__)))
stdout, stderr = p.communicate()
stdout = ''.join(stdout)
stderr = ''.join(stderr)
if stdout:
core: use py3 compatible prints
r3057 print(stdout)
project: added all source files and assets
r1 if stderr:
core: use py3 compatible prints
r3057 print('%s %s %s' % ('-' * 20, 'ERRORS', '-' * 20))
print(stderr)
project: added all source files and assets
r1
MAXFD = 1024
HERE = os.path.dirname(os.path.abspath(__file__))
SERVER_RUNNING_FILE = None
# watch those extra files for changes, server gets restarted if file changes
GLOBAL_EXTRA_FILES = {
'rhodecode/public/css/*.less': make_web_build_callback,
'rhodecode/public/js/src/**/*.js': make_web_build_callback,
}
## HOOKS - inspired by gunicorn #
def when_ready(server):
"""
Called just after the server is started.
"""
def _remove_server_running_file():
if os.path.isfile(SERVER_RUNNING_FILE):
os.remove(SERVER_RUNNING_FILE)
if SERVER_RUNNING_FILE:
with open(SERVER_RUNNING_FILE, 'wb') as f:
f.write(str(os.getpid()))
# register cleanup of that file when server exits
atexit.register(_remove_server_running_file)
def setup_logging(config_uri, fileConfig=fileConfig,
configparser=configparser):
"""
Set up logging via the logging module's fileConfig function with the
filename specified via ``config_uri`` (a string in the form
``filename#sectionname``).
ConfigParser defaults are specified for the special ``__file__``
and ``here`` variables, similar to PasteDeploy config loading.
"""
path, _ = _getpathsec(config_uri, None)
parser = configparser.ConfigParser()
parser.read([path])
if parser.has_section('loggers'):
config_file = os.path.abspath(path)
return fileConfig(
config_file,
{'__file__': config_file, 'here': os.path.dirname(config_file)}
)
def set_rhodecode_is_test(config_uri):
"""If is_test is defined in the config file sets rhodecode.is_test."""
path, _ = _getpathsec(config_uri, None)
parser = configparser.ConfigParser()
parser.read(path)
rhodecode.is_test = (
parser.has_option('app:main', 'is_test') and
parser.getboolean('app:main', 'is_test'))
def _getpathsec(config_uri, name):
if '#' in config_uri:
path, section = config_uri.split('#', 1)
else:
path, section = config_uri, 'main'
if name:
section = name
return path, section
def parse_vars(args):
"""
Given variables like ``['a=b', 'c=d']`` turns it into ``{'a':
'b', 'c': 'd'}``
"""
result = {}
for arg in args:
if '=' not in arg:
raise ValueError(
'Variable assignment %r invalid (no "=")'
% arg)
name, value = arg.split('=', 1)
result[name] = value
return result
def _match_pattern(filename):
for pattern in GLOBAL_EXTRA_FILES:
if fnmatch.fnmatch(filename, pattern):
return pattern
return False
def generate_extra_file_list():
extra_list = []
for root, dirs, files in os.walk(HERE, topdown=True):
for fname in files:
stripped_src = os.path.join(
'rhodecode', os.path.relpath(os.path.join(root, fname), HERE))
if _match_pattern(stripped_src):
extra_list.append(stripped_src)
return extra_list
def run_callback_for_pattern(filename):
pattern = _match_pattern(filename)
if pattern:
_file_callback = GLOBAL_EXTRA_FILES.get(pattern)
if callable(_file_callback):
_file_callback(filename)
class DaemonizeException(Exception):
pass
class RcServerCommand(object):
usage = '%prog config_uri [start|stop|restart|status] [var=value]'
description = """\
This command serves a web application that uses a PasteDeploy
configuration file for the server and application.
If start/stop/restart is given, then --daemon is implied, and it will
start (normal operation), stop (--stop-daemon), or do both.
You can also include variable assignments like 'http_port=8080'
and then use %(http_port)s in your config files.
"""
default_verbosity = 1
parser = optparse.OptionParser(
usage,
description=textwrap.dedent(description)
)
parser.add_option(
'-n', '--app-name',
dest='app_name',
metavar='NAME',
help="Load the named application (default main)")
parser.add_option(
'-s', '--server',
dest='server',
metavar='SERVER_TYPE',
help="Use the named server.")
parser.add_option(
'--server-name',
dest='server_name',
metavar='SECTION_NAME',
help=("Use the named server as defined in the configuration file "
"(default: main)"))
parser.add_option(
'--with-vcsserver',
dest='vcs_server',
action='store_true',
help=("Start the vcsserver instance together with the RhodeCode server"))
if hasattr(os, 'fork'):
parser.add_option(
'--daemon',
dest="daemon",
action="store_true",
help="Run in daemon (background) mode")
parser.add_option(
'--pid-file',
dest='pid_file',
metavar='FILENAME',
help=("Save PID to file (default to pyramid.pid if running in "
"daemon mode)"))
parser.add_option(
'--running-file',
dest='running_file',
metavar='RUNNING_FILE',
help="Create a running file after the server is initalized with "
"stored PID of process")
parser.add_option(
'--log-file',
dest='log_file',
metavar='LOG_FILE',
help="Save output to the given log file (redirects stdout)")
parser.add_option(
'--reload',
dest='reload',
action='store_true',
help="Use auto-restart file monitor")
parser.add_option(
'--reload-interval',
dest='reload_interval',
default=1,
help=("Seconds between checking files (low number can cause "
"significant CPU usage)"))
parser.add_option(
'--monitor-restart',
dest='monitor_restart',
action='store_true',
help="Auto-restart server if it dies")
parser.add_option(
'--status',
action='store_true',
dest='show_status',
help="Show the status of the (presumably daemonized) server")
parser.add_option(
'-v', '--verbose',
default=default_verbosity,
dest='verbose',
action='count',
help="Set verbose level (default "+str(default_verbosity)+")")
parser.add_option(
'-q', '--quiet',
action='store_const',
const=0,
dest='verbose',
help="Suppress verbose output")
if hasattr(os, 'setuid'):
# I don't think these are available on Windows
parser.add_option(
'--user',
dest='set_user',
metavar="USERNAME",
help="Set the user (usually only possible when run as root)")
parser.add_option(
'--group',
dest='set_group',
metavar="GROUP",
help="Set the group (usually only possible when run as root)")
parser.add_option(
'--stop-daemon',
dest='stop_daemon',
action='store_true',
help=('Stop a daemonized server (given a PID file, or default '
'pyramid.pid file)'))
_scheme_re = re.compile(r'^[a-z][a-z]+:', re.I)
_reloader_environ_key = 'PYTHON_RELOADER_SHOULD_RUN'
_monitor_environ_key = 'PASTE_MONITOR_SHOULD_RUN'
possible_subcommands = ('start', 'stop', 'restart', 'status')
def __init__(self, argv, quiet=False):
self.options, self.args = self.parser.parse_args(argv[1:])
if quiet:
self.options.verbose = 0
def out(self, msg): # pragma: no cover
if self.options.verbose > 0:
print(msg)
def get_options(self):
if (len(self.args) > 1
and self.args[1] in self.possible_subcommands):
restvars = self.args[2:]
else:
restvars = self.args[1:]
return parse_vars(restvars)
def run(self): # pragma: no cover
if self.options.stop_daemon:
return self.stop_daemon()
if not hasattr(self.options, 'set_user'):
# Windows case:
self.options.set_user = self.options.set_group = None
# @@: Is this the right stage to set the user at?
self.change_user_group(
self.options.set_user, self.options.set_group)
if not self.args:
self.out('Please provide configuration file as first argument, '
'most likely it should be production.ini')
return 2
app_spec = self.args[0]
if (len(self.args) > 1
and self.args[1] in self.possible_subcommands):
cmd = self.args[1]
else:
cmd = None
if self.options.reload:
if os.environ.get(self._reloader_environ_key):
if self.options.verbose > 1:
self.out('Running reloading file monitor')
install_reloader(int(self.options.reload_interval),
[app_spec] + generate_extra_file_list())
# if self.requires_config_file:
# watch_file(self.args[0])
else:
return self.restart_with_reloader()
if cmd not in (None, 'start', 'stop', 'restart', 'status'):
self.out(
'Error: must give start|stop|restart (not %s)' % cmd)
return 2
if cmd == 'status' or self.options.show_status:
return self.show_status()
if cmd == 'restart' or cmd == 'stop':
result = self.stop_daemon()
if result:
if cmd == 'restart':
self.out("Could not stop daemon; aborting")
else:
self.out("Could not stop daemon")
return result
if cmd == 'stop':
return result
self.options.daemon = True
if cmd == 'start':
self.options.daemon = True
app_name = self.options.app_name
vars = self.get_options()
if self.options.vcs_server:
vars['vcs.start_server'] = 'true'
if self.options.running_file:
global SERVER_RUNNING_FILE
SERVER_RUNNING_FILE = self.options.running_file
if not self._scheme_re.search(app_spec):
app_spec = 'config:' + app_spec
server_name = self.options.server_name
if self.options.server:
server_spec = 'egg:pyramid'
assert server_name is None
server_name = self.options.server
else:
server_spec = app_spec
base = os.getcwd()
if getattr(self.options, 'daemon', False):
if not self.options.pid_file:
self.options.pid_file = 'pyramid.pid'
if not self.options.log_file:
self.options.log_file = 'pyramid.log'
# Ensure the log file is writeable
if self.options.log_file:
try:
writeable_log_file = open(self.options.log_file, 'a')
except IOError as ioe:
msg = 'Error: Unable to write to log file: %s' % ioe
raise ValueError(msg)
writeable_log_file.close()
# Ensure the pid file is writeable
if self.options.pid_file:
try:
writeable_pid_file = open(self.options.pid_file, 'a')
except IOError as ioe:
msg = 'Error: Unable to write to pid file: %s' % ioe
raise ValueError(msg)
writeable_pid_file.close()
if getattr(self.options, 'daemon', False):
try:
self.daemonize()
except DaemonizeException as ex:
if self.options.verbose > 0:
self.out(str(ex))
return 2
if (self.options.monitor_restart
and not os.environ.get(self._monitor_environ_key)):
return self.restart_with_monitor()
if self.options.pid_file:
self.record_pid(self.options.pid_file)
if self.options.log_file:
stdout_log = LazyWriter(self.options.log_file, 'a')
sys.stdout = stdout_log
sys.stderr = stdout_log
logging.basicConfig(stream=stdout_log)
log_fn = app_spec
if log_fn.startswith('config:'):
log_fn = app_spec[len('config:'):]
elif log_fn.startswith('egg:'):
log_fn = None
if log_fn:
log_fn = os.path.join(base, log_fn)
setup_logging(log_fn)
set_rhodecode_is_test(log_fn)
server = self.loadserver(server_spec, name=server_name,
relative_to=base, global_conf=vars)
# starting hooks
app = self.loadapp(app_spec, name=app_name, relative_to=base,
global_conf=vars)
if self.options.verbose > 0:
if hasattr(os, 'getpid'):
msg = 'Starting %s in PID %i.' % (__name__, os.getpid())
else:
msg = 'Starting %s.' % (__name__,)
self.out(msg)
if SERVER_RUNNING_FILE:
self.out('PID file written as %s' % (SERVER_RUNNING_FILE, ))
elif not self.options.pid_file:
self.out('No PID file written by default.')
try:
when_ready(server)
server(app)
except (SystemExit, KeyboardInterrupt) as e:
if self.options.verbose > 1:
raise
if str(e):
msg = ' ' + str(e)
else:
msg = ''
self.out('Exiting%s (-v to see traceback)' % msg)
def loadapp(self, app_spec, name, relative_to, **kw): # pragma: no cover
return loadapp(app_spec, name=name, relative_to=relative_to, **kw)
def loadserver(self, server_spec, name, relative_to, **kw): # pragma:no cover
return loadserver(
server_spec, name=name, relative_to=relative_to, **kw)
def quote_first_command_arg(self, arg): # pragma: no cover
"""
There's a bug in Windows when running an executable that's
located inside a path with a space in it. This method handles
that case, or on non-Windows systems or an executable with no
spaces, it just leaves well enough alone.
"""
if sys.platform != 'win32' or ' ' not in arg:
# Problem does not apply:
return arg
try:
import win32api
except ImportError:
raise ValueError(
"The executable %r contains a space, and in order to "
"handle this issue you must have the win32api module "
"installed" % arg)
arg = win32api.GetShortPathName(arg)
return arg
def daemonize(self): # pragma: no cover
pid = live_pidfile(self.options.pid_file)
if pid:
raise DaemonizeException(
"Daemon is already running (PID: %s from PID file %s)"
% (pid, self.options.pid_file))
if self.options.verbose > 0:
self.out('Entering daemon mode')
pid = os.fork()
if pid:
# The forked process also has a handle on resources, so we
# *don't* want proper termination of the process, we just
# want to exit quick (which os._exit() does)
os._exit(0)
# Make this the session leader
os.setsid()
# Fork again for good measure!
pid = os.fork()
if pid:
os._exit(0)
# @@: Should we set the umask and cwd now?
import resource # Resource usage information.
maxfd = resource.getrlimit(resource.RLIMIT_NOFILE)[1]
if maxfd == resource.RLIM_INFINITY:
maxfd = MAXFD
# Iterate through and close all file descriptors.
for fd in range(0, maxfd):
try:
os.close(fd)
except OSError: # ERROR, fd wasn't open to begin with (ignored)
pass
if hasattr(os, "devnull"):
REDIRECT_TO = os.devnull
else:
REDIRECT_TO = "/dev/null"
os.open(REDIRECT_TO, os.O_RDWR) # standard input (0)
# Duplicate standard input to standard output and standard error.
os.dup2(0, 1) # standard output (1)
os.dup2(0, 2) # standard error (2)
def _remove_pid_file(self, written_pid, filename, verbosity):
current_pid = os.getpid()
if written_pid != current_pid:
# A forked process must be exiting, not the process that
# wrote the PID file
return
if not os.path.exists(filename):
return
with open(filename) as f:
content = f.read().strip()
try:
pid_in_file = int(content)
except ValueError:
pass
else:
if pid_in_file != current_pid:
msg = "PID file %s contains %s, not expected PID %s"
self.out(msg % (filename, pid_in_file, current_pid))
return
if verbosity > 0:
self.out("Removing PID file %s" % filename)
try:
os.unlink(filename)
return
except OSError as e:
# Record, but don't give traceback
self.out("Cannot remove PID file: (%s)" % e)
# well, at least lets not leave the invalid PID around...
try:
with open(filename, 'w') as f:
f.write('')
except OSError as e:
self.out('Stale PID left in file: %s (%s)' % (filename, e))
else:
self.out('Stale PID removed')
def record_pid(self, pid_file):
pid = os.getpid()
if self.options.verbose > 1:
self.out('Writing PID %s to %s' % (pid, pid_file))
with open(pid_file, 'w') as f:
f.write(str(pid))
atexit.register(self._remove_pid_file, pid, pid_file, self.options.verbose)
def stop_daemon(self): # pragma: no cover
pid_file = self.options.pid_file or 'pyramid.pid'
if not os.path.exists(pid_file):
self.out('No PID file exists in %s' % pid_file)
return 1
pid = read_pidfile(pid_file)
if not pid:
self.out("Not a valid PID file in %s" % pid_file)
return 1
pid = live_pidfile(pid_file)
if not pid:
self.out("PID in %s is not valid (deleting)" % pid_file)
try:
os.unlink(pid_file)
except (OSError, IOError) as e:
self.out("Could not delete: %s" % e)
return 2
return 1
for j in range(10):
if not live_pidfile(pid_file):
break
import signal
kill(pid, signal.SIGTERM)
time.sleep(1)
else:
self.out("failed to kill web process %s" % pid)
return 3
if os.path.exists(pid_file):
os.unlink(pid_file)
return 0
def show_status(self): # pragma: no cover
pid_file = self.options.pid_file or 'pyramid.pid'
if not os.path.exists(pid_file):
self.out('No PID file %s' % pid_file)
return 1
pid = read_pidfile(pid_file)
if not pid:
self.out('No PID in file %s' % pid_file)
return 1
pid = live_pidfile(pid_file)
if not pid:
self.out('PID %s in %s is not running' % (pid, pid_file))
return 1
self.out('Server running in PID %s' % pid)
return 0
def restart_with_reloader(self): # pragma: no cover
self.restart_with_monitor(reloader=True)
def restart_with_monitor(self, reloader=False): # pragma: no cover
if self.options.verbose > 0:
if reloader:
self.out('Starting subprocess with file monitor')
else:
self.out('Starting subprocess with monitor parent')
while 1:
args = [self.quote_first_command_arg(sys.executable)] + sys.argv
new_environ = os.environ.copy()
if reloader:
new_environ[self._reloader_environ_key] = 'true'
else:
new_environ[self._monitor_environ_key] = 'true'
proc = None
try:
try:
_turn_sigterm_into_systemexit()
Martin Bornhold
subprocess: Change all imports from `subprocess` -> `subprocess32`
r1007 proc = subprocess32.Popen(args, env=new_environ)
project: added all source files and assets
r1 exit_code = proc.wait()
proc = None
except KeyboardInterrupt:
self.out('^C caught in monitor process')
if self.options.verbose > 1:
raise
return 1
finally:
if proc is not None:
import signal
try:
kill(proc.pid, signal.SIGTERM)
except (OSError, IOError):
pass
if reloader:
# Reloader always exits with code 3; but if we are
# a monitor, any exit code will restart
if exit_code != 3:
return exit_code
if self.options.verbose > 0:
self.out('%s %s %s' % ('-' * 20, 'Restarting', '-' * 20))
def change_user_group(self, user, group): # pragma: no cover
if not user and not group:
return
import pwd
import grp
uid = gid = None
if group:
try:
gid = int(group)
group = grp.getgrgid(gid).gr_name
except ValueError:
try:
entry = grp.getgrnam(group)
except KeyError:
raise ValueError(
"Bad group: %r; no such group exists" % group)
gid = entry.gr_gid
try:
uid = int(user)
user = pwd.getpwuid(uid).pw_name
except ValueError:
try:
entry = pwd.getpwnam(user)
except KeyError:
raise ValueError(
"Bad username: %r; no such user exists" % user)
if not gid:
gid = entry.pw_gid
uid = entry.pw_uid
if self.options.verbose > 0:
self.out('Changing user to %s:%s (%s:%s)' % (
user, group or '(unknown)', uid, gid))
if gid:
os.setgid(gid)
if uid:
os.setuid(uid)
class LazyWriter(object):
"""
File-like object that opens a file lazily when it is first written
to.
"""
def __init__(self, filename, mode='w'):
self.filename = filename
self.fileobj = None
self.lock = threading.Lock()
self.mode = mode
def open(self):
if self.fileobj is None:
with self.lock:
self.fileobj = open(self.filename, self.mode)
return self.fileobj
def close(self):
fileobj = self.fileobj
if fileobj is not None:
fileobj.close()
def __del__(self):
self.close()
def write(self, text):
fileobj = self.open()
fileobj.write(text)
fileobj.flush()
def writelines(self, text):
fileobj = self.open()
fileobj.writelines(text)
fileobj.flush()
def flush(self):
self.open().flush()
def live_pidfile(pidfile): # pragma: no cover
"""
(pidfile:str) -> int | None
Returns an int found in the named file, if there is one,
and if there is a running process with that process id.
Return None if no such process exists.
"""
pid = read_pidfile(pidfile)
if pid:
try:
kill(int(pid), 0)
return pid
except OSError as e:
if e.errno == errno.EPERM:
return pid
return None
def read_pidfile(filename):
if os.path.exists(filename):
try:
with open(filename) as f:
content = f.read()
return int(content.strip())
except (ValueError, IOError):
return None
else:
return None
def ensure_port_cleanup(
bound_addresses, maxtries=30, sleeptime=2): # pragma: no cover
"""
This makes sure any open ports are closed.
Does this by connecting to them until they give connection
refused. Servers should call like::
ensure_port_cleanup([80, 443])
"""
atexit.register(_cleanup_ports, bound_addresses, maxtries=maxtries,
sleeptime=sleeptime)
def _cleanup_ports(
bound_addresses, maxtries=30, sleeptime=2): # pragma: no cover
# Wait for the server to bind to the port.
import socket
import errno
for bound_address in bound_addresses:
for attempt in range(maxtries):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
sock.connect(bound_address)
except socket.error as e:
if e.args[0] != errno.ECONNREFUSED:
raise
break
else:
time.sleep(sleeptime)
else:
raise SystemExit('Timeout waiting for port.')
sock.close()
def _turn_sigterm_into_systemexit(): # pragma: no cover
"""
Attempts to turn a SIGTERM exception into a SystemExit exception.
"""
try:
import signal
except ImportError:
return
def handle_term(signo, frame):
raise SystemExit
signal.signal(signal.SIGTERM, handle_term)
def install_reloader(poll_interval=1, extra_files=None): # pragma: no cover
"""
Install the reloading monitor.
On some platforms server threads may not terminate when the main
thread does, causing ports to remain open/locked. The
``raise_keyboard_interrupt`` option creates a unignorable signal
which causes the whole application to shut-down (rudely).
"""
mon = Monitor(poll_interval=poll_interval)
if extra_files is None:
extra_files = []
mon.extra_files.extend(extra_files)
t = threading.Thread(target=mon.periodic_reload)
t.setDaemon(True)
t.start()
class classinstancemethod(object):
"""
Acts like a class method when called from a class, like an
instance method when called by an instance. The method should
take two arguments, 'self' and 'cls'; one of these will be None
depending on how the method was called.
"""
def __init__(self, func):
self.func = func
self.__doc__ = func.__doc__
def __get__(self, obj, type=None):
return _methodwrapper(self.func, obj=obj, type=type)
class _methodwrapper(object):
def __init__(self, func, obj, type):
self.func = func
self.obj = obj
self.type = type
def __call__(self, *args, **kw):
assert not 'self' in kw and not 'cls' in kw, (
"You cannot use 'self' or 'cls' arguments to a "
"classinstancemethod")
return self.func(*((self.obj, self.type) + args), **kw)
class Monitor(object): # pragma: no cover
"""
A file monitor and server restarter.
Use this like:
..code-block:: Python
install_reloader()
Then make sure your server is installed with a shell script like::
err=3
while test "$err" -eq 3 ; do
python server.py
err="$?"
done
or is run from this .bat file (if you use Windows)::
@echo off
:repeat
python server.py
if %errorlevel% == 3 goto repeat
or run a monitoring process in Python (``pserve --reload`` does
this).
Use the ``watch_file(filename)`` function to cause a reload/restart for
other non-Python files (e.g., configuration files). If you have
a dynamic set of files that grows over time you can use something like::
def watch_config_files():
return CONFIG_FILE_CACHE.keys()
add_file_callback(watch_config_files)
Then every time the reloader polls files it will call
``watch_config_files`` and check all the filenames it returns.
"""
instances = []
global_extra_files = []
global_file_callbacks = []
def __init__(self, poll_interval):
self.module_mtimes = {}
self.keep_running = True
self.poll_interval = poll_interval
self.extra_files = list(self.global_extra_files)
self.instances.append(self)
self.file_callbacks = list(self.global_file_callbacks)
def _exit(self):
# use os._exit() here and not sys.exit() since within a
# thread sys.exit() just closes the given thread and
# won't kill the process; note os._exit does not call
# any atexit callbacks, nor does it do finally blocks,
# flush open files, etc. In otherwords, it is rude.
os._exit(3)
def periodic_reload(self):
while True:
if not self.check_reload():
self._exit()
break
time.sleep(self.poll_interval)
def check_reload(self):
filenames = list(self.extra_files)
for file_callback in self.file_callbacks:
try:
filenames.extend(file_callback())
except:
print(
"Error calling reloader callback %r:" % file_callback)
traceback.print_exc()
for module in list(sys.modules.values()):
try:
filename = module.__file__
except (AttributeError, ImportError):
continue
if filename is not None:
filenames.append(filename)
for filename in filenames:
try:
stat = os.stat(filename)
if stat:
mtime = stat.st_mtime
else:
mtime = 0
except (OSError, IOError):
continue
if filename.endswith('.pyc') and os.path.exists(filename[:-1]):
mtime = max(os.stat(filename[:-1]).st_mtime, mtime)
if not filename in self.module_mtimes:
self.module_mtimes[filename] = mtime
elif self.module_mtimes[filename] < mtime:
print("%s changed; reloading..." % filename)
run_callback_for_pattern(filename)
return False
return True
def watch_file(self, cls, filename):
"""Watch the named file for changes"""
filename = os.path.abspath(filename)
if self is None:
for instance in cls.instances:
instance.watch_file(filename)
cls.global_extra_files.append(filename)
else:
self.extra_files.append(filename)
watch_file = classinstancemethod(watch_file)
def add_file_callback(self, cls, callback):
"""Add a callback -- a function that takes no parameters -- that will
return a list of filenames to watch for changes."""
if self is None:
for instance in cls.instances:
instance.add_file_callback(callback)
cls.global_file_callbacks.append(callback)
else:
self.file_callbacks.append(callback)
add_file_callback = classinstancemethod(add_file_callback)
watch_file = Monitor.watch_file
add_file_callback = Monitor.add_file_callback
def main(argv=sys.argv, quiet=False):
command = RcServerCommand(argv, quiet=quiet)
return command.run()
if __name__ == '__main__': # pragma: no cover
sys.exit(main() or 0)