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Refactor logging handling

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Old system was using manual string formatting for log messages.
This caused issues with common operations like exception logging
because often they need to be handled differently for Py2/Py3
compatibility. In order to unify the effort:

 - All logging is changed to `logging.level(msg, arg1, arg2)` style.
 - A `SafeLogger` is implemented to auto-decode exceptions properly
in the args (ref #1403).
 - Custom formatters were overriding useful logging functionality
like traceback outputing (ref #1402). They are refactored to be
more transparent. Traceback information is provided in `--debug`
mode for `read_file` errors in generators.
 - Formatters will now auto-format multiline log messages in order
to make them look related. Similarly, traceback will be formatted in
the same fashion.
 - `pelican.log.LimitFilter` was (ab)using logging message which
would result in awkward syntax for argumented logging style. This
functionality is moved to `extra` keyword argument.
 - Levels for errors that would result skipping a file (`read_file`)
changed from `warning` to `error` in order to make them stand out
among other logs.
 - Small consistency changes to log messages (i.e. changing all
to start with an uppercase letter) and quality-of-life improvements
(some log messages were dumping raw object information).
This commit is contained in:
Deniz Turgut 2014-07-22 11:48:15 -04:00
commit ed3209888a
14 changed files with 271 additions and 195 deletions
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10
pelican/server.py
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@ -30,9 +30,9 @@ class ComplexHTTPRequestHandler(srvmod.SimpleHTTPRequestHandler):
logging.info("Found: %s" % self.path)
found = True
break
logging.info("Tried to find file %s, but it doesn't exist. " % self.path)
logging.info("Tried to find file %s, but it doesn't exist. ", self.path)
if not found:
logging.warning("Unable to find file %s or variations." % self.path)
logging.warning("Unable to find file %s or variations.", self.path)
Handler = ComplexHTTPRequestHandler
@ -40,13 +40,13 @@ socketserver.TCPServer.allow_reuse_address = True
try:
httpd = socketserver.TCPServer(("", PORT), Handler)
except OSError as e:
logging.error("Could not listen on port %s" % PORT)
logging.error("Could not listen on port %s", PORT)
sys.exit(getattr(e, 'exitcode', 1))
logging.info("serving at port %s" % PORT)
logging.info("Serving at port %s", PORT)
try:
httpd.serve_forever()
except KeyboardInterrupt as e:
logging.info("shutting down server")
logging.info("Shutting down server")
httpd.socket.close()