R: display preversion when available

Description

Issue(s)

https://gitlab.e.foundation/e/os/backlog/-/issues/186

Test environment

Testing is quite tricky, so I guess a code review should be enough

otherwise you will need to deploy LineageOTA with this specific MR

e/infra/LineageOTA!37 (merged)

add builds specific to your device. These builds need to be tagged as alpha/beta/rc and be more recent than your current build. You can modify a build.prop to reflect this

Test procedures

If you are using the above ota system, please create a build with FEATURE_BRANCH

v1-r-186-display-preversion-when-available

please note that there is a tmp commit allowing clear traffic for tests, to be reverted before merge

change your ota url to your own server

adb root && adb remount
adb shell 'echo "lineage.updater.uri=http://your-local-ip/api/v1/{device}/{type}/{incr}" >> /system/build.prop'
adb reboot

then list available updates

Screenshots

To come

Check list

• Self review
• Test procedure explained
• Tested on fresh install
• Tested applied as an update
• License
• Internal documentation
• User documentation