How to best use log[]with a file that doesn't change size, but modified date changes

[ennova]

I am trying to monitor a file for a very specific error, the problem I have is that the application (of which I don't control) is changing the modified date of the file without changing its contents. As such, the entire file is re-read and I get a lot of repeated data. What is the best approach to solve this?

Thank you,

[andris]

Instead of log[] you can try to use logrt[] (with pretty strict file name regexp to match only desired file) with parameter 'options' set to copytruncate.
I haven't tested it but it might do the trick.