diff options
author | Ori Bernstein <ori@eigenstate.org> | 2021-06-14 00:00:37 +0000 |
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committer | Ori Bernstein <ori@eigenstate.org> | 2021-06-14 00:00:37 +0000 |
commit | a73a964e51247ed169d322c725a3a18859f109a3 (patch) | |
tree | 3f752d117274d444bda44e85609aeac1acf313f3 /sys/lib/python/logging/config.py | |
parent | e64efe273fcb921a61bf27d33b230c4e64fcd425 (diff) |
python, hg: tow outside the environment.
they've served us well, and can ride off into the sunset.
Diffstat (limited to 'sys/lib/python/logging/config.py')
-rw-r--r-- | sys/lib/python/logging/config.py | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/sys/lib/python/logging/config.py b/sys/lib/python/logging/config.py deleted file mode 100644 index 11d2b7a79..000000000 --- a/sys/lib/python/logging/config.py +++ /dev/null @@ -1,348 +0,0 @@ -# Copyright 2001-2005 by Vinay Sajip. All Rights Reserved. -# -# Permission to use, copy, modify, and distribute this software and its -# documentation for any purpose and without fee is hereby granted, -# provided that the above copyright notice appear in all copies and that -# both that copyright notice and this permission notice appear in -# supporting documentation, and that the name of Vinay Sajip -# not be used in advertising or publicity pertaining to distribution -# of the software without specific, written prior permission. -# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL -# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR -# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER -# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT -# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -""" -Configuration functions for the logging package for Python. The core package -is based on PEP 282 and comments thereto in comp.lang.python, and influenced -by Apache's log4j system. - -Should work under Python versions >= 1.5.2, except that source line -information is not available unless 'sys._getframe()' is. - -Copyright (C) 2001-2004 Vinay Sajip. All Rights Reserved. - -To use, simply 'import logging' and log away! -""" - -import sys, logging, logging.handlers, string, socket, struct, os, traceback, types - -try: - import thread - import threading -except ImportError: - thread = None - -from SocketServer import ThreadingTCPServer, StreamRequestHandler - - -DEFAULT_LOGGING_CONFIG_PORT = 9030 - -if sys.platform == "win32": - RESET_ERROR = 10054 #WSAECONNRESET -else: - RESET_ERROR = 104 #ECONNRESET - -# -# The following code implements a socket listener for on-the-fly -# reconfiguration of logging. -# -# _listener holds the server object doing the listening -_listener = None - -def fileConfig(fname, defaults=None): - """ - Read the logging configuration from a ConfigParser-format file. - - This can be called several times from an application, allowing an end user - the ability to select from various pre-canned configurations (if the - developer provides a mechanism to present the choices and load the chosen - configuration). - In versions of ConfigParser which have the readfp method [typically - shipped in 2.x versions of Python], you can pass in a file-like object - rather than a filename, in which case the file-like object will be read - using readfp. - """ - import ConfigParser - - cp = ConfigParser.ConfigParser(defaults) - if hasattr(cp, 'readfp') and hasattr(fname, 'readline'): - cp.readfp(fname) - else: - cp.read(fname) - - formatters = _create_formatters(cp) - - # critical section - logging._acquireLock() - try: - logging._handlers.clear() - del logging._handlerList[:] - # Handlers add themselves to logging._handlers - handlers = _install_handlers(cp, formatters) - _install_loggers(cp, handlers) - finally: - logging._releaseLock() - - -def _resolve(name): - """Resolve a dotted name to a global object.""" - name = string.split(name, '.') - used = name.pop(0) - found = __import__(used) - for n in name: - used = used + '.' + n - try: - found = getattr(found, n) - except AttributeError: - __import__(used) - found = getattr(found, n) - return found - - -def _create_formatters(cp): - """Create and return formatters""" - flist = cp.get("formatters", "keys") - if not len(flist): - return {} - flist = string.split(flist, ",") - formatters = {} - for form in flist: - sectname = "formatter_%s" % string.strip(form) - opts = cp.options(sectname) - if "format" in opts: - fs = cp.get(sectname, "format", 1) - else: - fs = None - if "datefmt" in opts: - dfs = cp.get(sectname, "datefmt", 1) - else: - dfs = None - c = logging.Formatter - if "class" in opts: - class_name = cp.get(sectname, "class") - if class_name: - c = _resolve(class_name) - f = c(fs, dfs) - formatters[form] = f - return formatters - - -def _install_handlers(cp, formatters): - """Install and return handlers""" - hlist = cp.get("handlers", "keys") - if not len(hlist): - return {} - hlist = string.split(hlist, ",") - handlers = {} - fixups = [] #for inter-handler references - for hand in hlist: - sectname = "handler_%s" % string.strip(hand) - klass = cp.get(sectname, "class") - opts = cp.options(sectname) - if "formatter" in opts: - fmt = cp.get(sectname, "formatter") - else: - fmt = "" - klass = eval(klass, vars(logging)) - args = cp.get(sectname, "args") - args = eval(args, vars(logging)) - h = apply(klass, args) - if "level" in opts: - level = cp.get(sectname, "level") - h.setLevel(logging._levelNames[level]) - if len(fmt): - h.setFormatter(formatters[fmt]) - #temporary hack for FileHandler and MemoryHandler. - if klass == logging.handlers.MemoryHandler: - if "target" in opts: - target = cp.get(sectname,"target") - else: - target = "" - if len(target): #the target handler may not be loaded yet, so keep for later... - fixups.append((h, target)) - handlers[hand] = h - #now all handlers are loaded, fixup inter-handler references... - for h, t in fixups: - h.setTarget(handlers[t]) - return handlers - - -def _install_loggers(cp, handlers): - """Create and install loggers""" - - # configure the root first - llist = cp.get("loggers", "keys") - llist = string.split(llist, ",") - llist = map(lambda x: string.strip(x), llist) - llist.remove("root") - sectname = "logger_root" - root = logging.root - log = root - opts = cp.options(sectname) - if "level" in opts: - level = cp.get(sectname, "level") - log.setLevel(logging._levelNames[level]) - for h in root.handlers[:]: - root.removeHandler(h) - hlist = cp.get(sectname, "handlers") - if len(hlist): - hlist = string.split(hlist, ",") - for hand in hlist: - log.addHandler(handlers[string.strip(hand)]) - - #and now the others... - #we don't want to lose the existing loggers, - #since other threads may have pointers to them. - #existing is set to contain all existing loggers, - #and as we go through the new configuration we - #remove any which are configured. At the end, - #what's left in existing is the set of loggers - #which were in the previous configuration but - #which are not in the new configuration. - existing = root.manager.loggerDict.keys() - #now set up the new ones... - for log in llist: - sectname = "logger_%s" % log - qn = cp.get(sectname, "qualname") - opts = cp.options(sectname) - if "propagate" in opts: - propagate = cp.getint(sectname, "propagate") - else: - propagate = 1 - logger = logging.getLogger(qn) - if qn in existing: - existing.remove(qn) - if "level" in opts: - level = cp.get(sectname, "level") - logger.setLevel(logging._levelNames[level]) - for h in logger.handlers[:]: - logger.removeHandler(h) - logger.propagate = propagate - logger.disabled = 0 - hlist = cp.get(sectname, "handlers") - if len(hlist): - hlist = string.split(hlist, ",") - for hand in hlist: - logger.addHandler(handlers[string.strip(hand)]) - - #Disable any old loggers. There's no point deleting - #them as other threads may continue to hold references - #and by disabling them, you stop them doing any logging. - for log in existing: - root.manager.loggerDict[log].disabled = 1 - - -def listen(port=DEFAULT_LOGGING_CONFIG_PORT): - """ - Start up a socket server on the specified port, and listen for new - configurations. - - These will be sent as a file suitable for processing by fileConfig(). - Returns a Thread object on which you can call start() to start the server, - and which you can join() when appropriate. To stop the server, call - stopListening(). - """ - if not thread: - raise NotImplementedError, "listen() needs threading to work" - - class ConfigStreamHandler(StreamRequestHandler): - """ - Handler for a logging configuration request. - - It expects a completely new logging configuration and uses fileConfig - to install it. - """ - def handle(self): - """ - Handle a request. - - Each request is expected to be a 4-byte length, packed using - struct.pack(">L", n), followed by the config file. - Uses fileConfig() to do the grunt work. - """ - import tempfile - try: - conn = self.connection - chunk = conn.recv(4) - if len(chunk) == 4: - slen = struct.unpack(">L", chunk)[0] - chunk = self.connection.recv(slen) - while len(chunk) < slen: - chunk = chunk + conn.recv(slen - len(chunk)) - #Apply new configuration. We'd like to be able to - #create a StringIO and pass that in, but unfortunately - #1.5.2 ConfigParser does not support reading file - #objects, only actual files. So we create a temporary - #file and remove it later. - file = tempfile.mktemp(".ini") - f = open(file, "w") - f.write(chunk) - f.close() - try: - fileConfig(file) - except (KeyboardInterrupt, SystemExit): - raise - except: - traceback.print_exc() - os.remove(file) - except socket.error, e: - if type(e.args) != types.TupleType: - raise - else: - errcode = e.args[0] - if errcode != RESET_ERROR: - raise - - class ConfigSocketReceiver(ThreadingTCPServer): - """ - A simple TCP socket-based logging config receiver. - """ - - allow_reuse_address = 1 - - def __init__(self, host='localhost', port=DEFAULT_LOGGING_CONFIG_PORT, - handler=None): - ThreadingTCPServer.__init__(self, (host, port), handler) - logging._acquireLock() - self.abort = 0 - logging._releaseLock() - self.timeout = 1 - - def serve_until_stopped(self): - import select - abort = 0 - while not abort: - rd, wr, ex = select.select([self.socket.fileno()], - [], [], - self.timeout) - if rd: - self.handle_request() - logging._acquireLock() - abort = self.abort - logging._releaseLock() - - def serve(rcvr, hdlr, port): - server = rcvr(port=port, handler=hdlr) - global _listener - logging._acquireLock() - _listener = server - logging._releaseLock() - server.serve_until_stopped() - - return threading.Thread(target=serve, - args=(ConfigSocketReceiver, - ConfigStreamHandler, port)) - -def stopListening(): - """ - Stop the listening server which was created with a call to listen(). - """ - global _listener - if _listener: - logging._acquireLock() - _listener.abort = 1 - _listener = None - logging._releaseLock() |