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Viewing changes to wxPython/wx/tools/Editra/src/ebmlib/logfile.py

  • Committer: Package Import Robot
  • Author(s): Stéphane Graber
  • Date: 2012-01-07 13:59:25 UTC
  • mfrom: (1.1.9) (5.1.10 sid)
  • Revision ID: package-import@ubuntu.com-20120107135925-2601miy9ullcon9j
Tags: 2.8.12.1-6ubuntu1
https://launchpad.net/bugs/632984
* Resync from Debian, changes that were kept:
  - debian/rules: re-enable mediactrl. This allows libwx_gtk2u_media-2.8 to be
    built, as this is required by some applications (LP: #632984)
  - debian/control: Build-dep on libxt-dev for mediactrl.
  - Patches
    + fix-bashism-in-example
* Add conflict on python-wxgtk2.8 (<< 2.8.12.1-6ubuntu1~) to python-wxversion
  to guarantee upgrade ordering when moving from pycentral to dh_python2.

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wxPython/wx/tools/Editra/src/ebmlib/logfile.py
 
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###############################################################################
 
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# Name: Cody Precord                                                          #
 
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# Purpose: Log File                                                           #
 
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# Author: Cody Precord <cprecord@editra.org>                                  #
 
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# Copyright: (c) 2010 Cody Precord <staff@editra.org>                         #
 
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# License: wxWindows License                                                  #
 
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###############################################################################
 
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"""
 
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Editra Business Model Library: LogFile
 
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Log file class for managing log files or other transient files that should
 
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be purged after a given period of time.
 
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"""
 
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__author__ = "Cody Precord <cprecord@editra.org>"
 
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__svnid__ = "$Id: logfile.py 66868 2011-02-09 16:01:49Z CJP $"
 
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__revision__ = "$Revision: 66868 $"
 
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__all__ = ['LogFile',]
 
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#--------------------------------------------------------------------------#
 
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# Imports
 
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import os
 
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import time
 
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import datetime
 
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import re
 
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import tempfile
 
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#--------------------------------------------------------------------------#
 
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class LogFile(object):
 
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    """Log file class"""
 
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    def __init__(self, prefix, logdir=None):
 
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        """Create a log file
 
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        @param prefix: filename prefix
 
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        @keyword logdir: abs path to log output dir
 
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        @note: if logdir is None then the system temp directory will be used
 
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        """
 
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        super(LogFile, self).__init__()
 
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        # Attributes
 
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        self.prefix = prefix
 
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        self.logdir = logdir
 
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        # Setup
 
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        if self.logdir is None:
 
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            self.logdir = tempfile.gettempdir()
 
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    #---- Properties ----#
 
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    LogDirectory = property(lambda self: self.logdir,
 
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                            lambda self, dname: setattr(self, 'logdir', dname))
 
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    Prefix = property(lambda self: self.prefix,
 
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                      lambda self, prefix: setattr(self, 'prefix', prefix))
 
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    #---- Public Interface ----#
 
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    def WriteMessage(self, msg):
 
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        """Append the message to the current log file
 
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        @param msg: string object
 
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        """
 
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        # Files are named as prefix_YYYY_MM_DD.log
 
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        logstamp = "%d_%d_%d" % time.localtime()[:3]
 
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        logname = "%s_%s.log" % (self.prefix, logstamp)
 
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        logpath = os.path.join(self.logdir, logname)
 
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        if os.path.exists(logpath):
 
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            opencmd = "ab"
 
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        else:
 
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            opencmd = "wb"
 
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#        with open(logpath, opencmd) as handle:
 
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#            handle.write(msg.rstrip() + os.linesep)
 
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        try:
 
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            handle = open(logpath, opencmd)
 
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            handle.write(msg.rstrip() + os.linesep)
 
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            handle.close()
 
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        except IOError:
 
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            pass
 
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    def PurgeOldLogs(self, days):
 
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        """Purge all log files older than n days
 
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        @param days: number of days
 
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        """
 
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        logpattern = re.compile("%s_[0-9]{4}_[0-9]{1,2}_[0-9]{1,2}.log" % self.prefix)
 
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        paths = list()
 
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        cdate = datetime.date(*time.localtime()[:3])
 
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        for path in os.listdir(self.logdir):
 
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            if logpattern.match(path):
 
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                ymd = [int(x) for x in path[len(self.prefix)+1:-4].split('_')]
 
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                fdate = datetime.date(*ymd)
 
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                span = cdate - fdate
 
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                if span.days > days:
 
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                    fpath = os.path.join(self.logdir, path)
 
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                    paths.append(fpath)
 
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        # Attempt to cleanup the old files
 
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        for log in paths:
 
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            try:
 
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                os.remove(log)
 
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            except OSError:
 
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                pass