Building Updates from Source

[ryneeverett]

Is there any information or resources on building and serving updates from source? The build guide seems to make no mention of it.

Further, there seems to be no way to change the update servers in "Updater" settings. I take it one would need to patch the DOS_OTA_SERVER_* variables before building in order to change these?

[SkewedZeppelin]

The Updater paths need to be pointed to your own: https://github.com/Divested-Mobile/DivestOS-Build/blob/master/Scripts/init.sh#L86-L94

The server parts are here: https://github.com/Divested-Mobile/mirror.divestos.org

Just have all those files in the in a web root, edit mirrorutils/config.php, and then builds go into builds/LineageOS/device

See here for an example push: https://github.com/Divested-Mobile/DivestOS-Build/blob/master/Scripts/Common/Functions.sh#L487-L494

[ryneeverett]

Thanks, I think that pretty well covers how to serve updates, but how do you build incrementals/?

[SkewedZeppelin]

turn on https://github.com/Divested-Mobile/DivestOS-Build/blob/master/Scripts/init.sh#L68

I stopped generating them because even on my 7950X it can take longer than the actual compile to generate since the process is single threaded and RAM intensive.

ie. generating a given delta can take up like 20GB of RAM

GrapheneOS processes them as an after step on multiple machines in batches of 4 last I asked

[ryneeverett]

I had assumed incremental was the only way for OTA to work, but from what you're saying it sounds like it is possible to do OTA updates by serving the full zipped image and that is how DivestOS currently works. Do I have that right?

[SkewedZeppelin]

correct, incrementals are entirely optional