Re: Compare with already existing and identical output file and *not* refresh its timestamp?

At least for html you can set the option HTML_TIMESTAMP = OFF.

Sebastien.

On 02/07/2019 04:15 AM, Richard Damon wrote:
> On 2/6/19 9:45 PM, Marc Herbert wrote:
>> Hi,
>>
>>   I understand incremental doxygen compilation is a hard problem. I've
>> read some of the past discussions. This request is *not* about
>> incremental doxygen compilation and it is not about making doxygen
>> faster at all. It's about something much simpler.
>>
>> Can doxygen redundantly recompute everything from scratch (even when
>> no input has changed), and then at the very end compare and realise
>> that it just regenerated the exact same (XML, HTML,...) output file
>> that is already there from the previous run? Is there in this case an
>> option /not/ to refresh the timestamp? I mean on a per output file
>> basis of course.
>>
>> Refreshing the timestamp has a disastrous cascade effect on further
>> processing like Sphinx which wrongly assumes everything has changed
>> even when no doxygen output has changed at all (except timestamps).
>>
>> Marc
> The simplest method in my mind would be  to have a post-process task
> that compares the Doxygen output directory with another copy, updating
> that copy if there is a ''significant' (not just timestamping)
> difference. It would be a simple enough program to write to customize
> for you own needs.
> 


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