set source from directory monitor filepath inputs.conf

I have a directory monitor setup like below: [monitor://some/path/to/my/DATA/*] disabled = false host_regex = (\w+)-\w+\.log\..*$ index = this_data_index sourcetype = some_sourcetype The log files that I am monitoring in this directory are day-of-the-week log files (i.e. fooBar.log.mo, fooBar.log.tu, etc.). Currently, the source is being set to the default path `some/path/to/my/DATA/helloWorld-text.log.mo` but what I would like to do is strip off the day extension so that my source would be `some/path/to/my/DATA/helloWorld-text.log` regardless of which day file it loaded. I've been looking around but have yet to find an answer that really applies to my situation. Any help would be greatly appreciated!