[TYPO3-dev] typo3temp/compressor/ - autocleanup?

[Ernesto Baschny [cron IT]]

Steffen Gebert schrieb am 11.08.2010 17:39:
> Am 11.08.10 16:17, schrieb Oliver Klee:
>> Hi,
>>
>> Am 05.08.2010 15:07, schrieb Steffen Gebert:
>>> I think a scheduler task (or better a task for lowlevel_cleaner?) would
>>> not be a bad idea.
>>
>> When the compressor creates a new version of a compressed file, the old
>> versions aren't needed (and not usable) anymore IIRC. So wouldn't it
>> (also) make sense that the compressor deletes the old versions directly
>> after creating the new ones?
> 
> That's not possible:
> 
> * With merged versions, you don't know, what has been merged, so don't
> know, if they're still needed (they just start with merged-*hash*) - you
> can have diffent merged CSS/JS files
> * With filename-*hash* you just know the file name, but not the full
> path. So may be we have two files with the same name in different
> directories
> 
> Because of the hash changes, when the filesizes/mtimes changes, it says
> nothing.

We might need to keep track of the merged files and their original
sources (md5 + tstamp) in the DB (or somewhere else?) so that a future
"cleanup" module could find out what is no longer used?

Cheers,
Ernesto