[04:19] <mup> Bug #1812605 changed: snap find crached <Snappy:Expired> <https://launchpad.net/bugs/1812605>
[08:23] <handsome_feng> Hi, I want to upgrade an software offline, and I make a delta file by 'xdelta3 -s telegram-desktop_637.snap telegram-desktop_617.snap telegram-desktop_637.snap.xdelta3', Does anyone know how to refresh the software in the offline computer using this xdelta3 file?
[09:40] <zyga> handsome_feng: hey
[09:41] <zyga> handsome_feng: instead of a delta perhaps just get "snap download telegram-desktop" on an online computer and copy the  pair of files over
[09:41] <zyga> handsome_feng: then use "snap ack" on the assertion file
[09:41] <zyga> handsome_feng: followed by "snap install" on the snap file
[09:41] <zyga> handsome_feng: this has the same effect as a normal online installation
[10:19] <handsome_feng> zyga: Thank you, but is it possible to refresh the software with the xdelta3 file only, since a software can be very big and I have post this in the snapcraft.io: https://forum.snapcraft.io/t/how-to-update-a-software-using-xdeltal3-file/10533 :)
[10:25] <zyga> handsome_feng: yes but you need to do it manually
[10:26] <zyga> just compute the delta of the revision you have there
[10:26] <zyga> handsome_feng: normally the store does that
[10:26] <zyga> handsome_feng: but if you want manually, go ahead
[10:26] <zyga> handsome_feng: just reconstruct the file on the offline machine
[10:26]  * zyga goes AFK 
[10:31] <handsome_feng> zyga: Thanks, Do you know the details of reconstruct the file on the offline machine? I got the xdelta command from the snapcraft source code, and I think the "apply xdelta3" part is in the source code of snapd, but I'm not familiar with 'go' language, :(
[14:57] <zyga> handsome_feng: it's not related to go, you can use any delta system you want
[14:57] <zyga> handsome_feng: I'm not personally familiar with it but I'm sure xdelta manual page shows how to use it