[rancid] Getting notified on timestamp changes for IOS-XE devices

[Chuck Anderson]

On Mon, May 02, 2022 at 04:38:31PM -1000, Steve O'Brien wrote:
> I have looked at a bunch of similar questions but still have not figured
> out how to get rancid to ignore the timestamp diff in IOS-XE devices.
> 
> - !Flash: bootflash: -rw-          5242880   May 1 2022 15:02:27 -10:00  ssd
> + !Flash: bootflash: -rw-          5242880   May 2 2022 15:03:10 -10:00  ssd
> 
> It seems like it was a recent change, I just updated the IOS-XE devices to
> Cisco IOS XE Software, Version 17.03.04
> 
> I am, and have been, using the standard cisco template
> running rancid 3.13-3

It seems like a neverending losing battle filtering out newly
oscillating command outputs.  I wonder if rancid should be enhanced to
make the filter patterns configurable rather than requiring code to be
written and/or have standard filters for dates/times in various formats.