XF 2.0 File level command line image optimisation

[Mouth]

My understanding for XF1.5 is that if we directly (file level from shell) optimise the image files within data/attachments then it causes problems due to checksum being different between DB and file. Is this still the case for XF2? Eg. we cannot just run a system cron for image optimisation on files within XF.

 

[delicatebobster]

i would also like to get an answer
because i have many large png files from years ago that i need to optimize

 

[Mike]

It's not really the hash that we check per se -- that's really just a random string. What we do store is the size of the attachment. If you change files on disk, that length needs to be updated so that the correct headers can be output, we know how long the stream is, etc.

So any changes to the data in these files does need to be aware of the DB entries referencing them.

 

[Mouth]

If you change files on disk, that length needs to be updated so that the correct headers can be output, we know how long the stream is, etc.

Does XF2 have a rebuild function for this? Or it can only be achieved by add-on?

 

[Mike]

There isn't anything built in to do this (there isn't anything built in that would change this content externally).