AppImageUpdate support

[Verneri]

Hi trying to use AppImageUpdate on logseq results in error:

or same in shell:

AppImageUpdate version 1-alpha (commit 20a6450), build 93 built on 2022-01-24 18:35:10 UTC
Error reading AppImage: Could not find update information in the AppImage. Please contact the author of the AppImage and ask them to embed update information.

HAving the update functionality would be nice

[andelf]

Thanks for your report. Auto Update on Linux is not supported yet.

[Verneri]

this is not autoupdate but support for AppImage update tool to be able to update the app

[menelic]

this would be great to have! Since it uses delta updates it is resource efficient and would enable those who use logseq via AppImage to stay current and manage different versions more easily

[slj3458]

Verneri pointed out this is not related to auto-update on Linux. The AppImageUpdate uses the zsync method to do the delta update. Therefore a .zsync file is required for the updates to work. The file url is embedded into the AppImage, this is known as the update information.