[jira] [Created] (LOG4NET-486) Rolling File Appender with 'maxSizeRollBackups' and 'datePattern' does not detect existing logs initially

["Simon Clark (JIRA)" <ji...@apache.org>]

Simon Clark created LOG4NET-486:
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             Summary: Rolling File Appender with 'maxSizeRollBackups' and 'datePattern' does not detect existing logs initially
                 Key: LOG4NET-486
                 URL: https://issues.apache.org/jira/browse/LOG4NET-486
             Project: Log4net
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 1.2.13
         Environment: Windows 8, Visual Studio 2013
            Reporter: Simon Clark


Rolling file appender with 'maxSizeRollBackups' set to a positive number tries to initialise by looking at existing log files to continue the rolling sequence and set 'm_curSizeRollBackups' to its correct value but the base filename format is wrong.

In method GetWildcardPatternForFile with m_preserveLogFileNameExtension true it should construct a wildcard pattern but the 'baseFileName' is not enough to fully identify the log file when 'datePattern' is also specified.

For example: -

With log files such as: -

MyLogFile_2015-10-27.1.log
MyLogFile_2015-10-27.2.log

the pattern created is 'MyLogFile.*.log'

The date pattern is missing and as a result no log files are found and historical log files get overwritten rather than rolled over.



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