Generate thumbnails on demand

[oparoz]

Background thumbnail generation might be coming in the future. We're tracking it here: #18

In the meantime or in addition, we could offer a way to generate these thumbnails on demand in order to make the app usable from the first load.

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[oparoz]

Closing as this needs to be dealt with in core so that we don't duplicate the effort.
Also, it won't work when encryption is enabled.

[deMattin]

:sad:

[oparoz]

I know...but it shouldn't take more than 6 months since the basic mechanism is in place in core. It's just that previews is not a priority.

It can also be a separate app which just creates a cron which goes through the whole instance, looking for missing thumbnails.

I'm sure you could even create it. It would make 2 calls: isCached() and createPreview();

[oparoz]

Solution is available as an occ command: #387

Only available to admins, because this wouldn't work as a user callable command since it would probably time-out before the task could be completed.

[oparoz]

[oparoz]

This issue was moved to nextcloud/gallery#15

[ladiko]

as it doesnt work with owncloud 9.1, would like to point to my comment here, which might be helpful for one or the other.