ubuntu-phone team mailing list archive

[Łukasz 'sil2100' Zemczak <lukasz.zemczak@xxxxxxxxxxxxx>]

Hi everyone,

We would like to announce some changes that just happened in the CI
Train that will probably interest all landers and, possibly, also some
developers using our phones and our release process. Please read on!

The RTM Landing Approaches document will be updated as well [1].


***
* CI Train sync: functionality using binary source copies by default
***

So, as most of you know, in the past whenever someone wanted to request
a sync from for instance ubuntu to ubuntu-rtm, CI Train was doing a
source copy, changing the version number (adding the ~rtm) and
retargeting to 14.09. This was to be safe that the package is rebuilt
with the build-dependencies that were in the selected distribution.

But after some discussions, we decided that in 95% of cases the
additional rebuild is not required and a binary copy would be
sufficient. So, to make the process faster and cleaner, we decided now
to switch to making binary copies for sync: silos by default. This
should decrease the time needed when a sync is happening.

Please be advised to properly test the sync packages on the target
archive though. Binary copies carry some risk, so make sure everything
runs correctly on the new distribution.

The functionality to do source copies as before is still there under the
REBUILD_SOURCES_FOR_SYNC flag in the jenkins Build job. Once switched,
the old way of things is enabled and the packages will be rebuilt in the
PPA.


***
* Flag to disable version mangling for RTM
***

In case someone needs to do a source copy instead of a binary copy, we
have added a flag that enables to not mangle the version number during
rebuild (i.e. not adding the ~rtm bit to the package). This can also be
useful when you notice that CI Train appends this ~rtm bit in the wrong
place of the version number. All that is needed is setting the
DO_NOT_APPEND_RTM_TO_VERSION checkbox in the Build job.


***
* Sync from silo working both ways
***

This is rather old news but worth mentioning here as well. CI Train
sync: always supported syncing ubuntu -> ubuntu-rtm and ubuntu-rtm ->
ubuntu, but the sync:<silo_number> functionality only worked one way
(from ubuntu to ubuntu-rtm). We modified it so that you can now sync
from any silo for any distro. So, if you have an ubuntu-rtm silo which
you want to sync to ubuntu, you can do that now freely.

This mean some people can now try landing things to RTM first and then
syncing that up to ubuntu.


Thanks!


[1] https://wiki.ubuntu.com/citrain/RTMLandingApproaches

Best regards,

-- 
Łukasz 'sil2100' Zemczak
 lukasz.zemczak@xxxxxxxxxxxxx
 www.canonical.com