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Re: [tycho-user] Release OSGi bundles/projects with Tycho 
For reproducible builds you need reproducible sources and build
configuration, whether project pom.xml says "2.0.0" or "2.0.0-SNAPSHOT"
or some other version is of little/no significance.

I think the whole release/snapshot separation is a design mistake in
Maven. It forces project configuration change and rebuild at very end of
release cycle, when you actually want to reduce/eliminate any change.

For m2e releases, for example, I just create release tag from my last
build. I can always rebuild from that tag and because neither
configuration nor the source can possibly change the rebuild will
produce the same result as the original.

--
Regards,
Igor

On 2014-03-07, 9:00, Rohrberg, Timo wrote:

Hello Igor,

yes, that's indeed true... But does it help to always keep
non-SNAPSHOT versions for my bundles and features then? Build
reproducibility of my release build is not ensured then, right? A
subsequent build of the release 2.0.0 would take the most recent
2.0.0-SNAPSHOT which might have been changed due to invalid actions
of my developers. Of course, if switching all bundles and features
from 2.0.0-SNAPSHOT to 2.1.0-SNAPSHOT definitely works and no more
build of the 2.0.0-SNAPSHOT ever happens after the first build of the
2.0.0 release has been completed, everything is fine... But isn't
that a quite fragile structure? Is there really no better way to deal
with that problem?

Regards Timo >

-----Ursprüngliche Nachricht-----
Von: tycho-user-bounces@xxxxxxxxxxx [mailto:tycho-user-bounces@xxxxxxxxxxx] Im Auftrag von Igor Fedorenko
Gesendet: Freitag, 7. März 2014 14:51
An: tycho-user@xxxxxxxxxxx
Betreff: Re: [tycho-user] Release OSGi bundles/projects with Tycho

Your release version (2.0.0) is older than your snapshot versions
(2.0.0.20140307-1234) according to OSGi version comparison rules.

--
Regards,
Igor

On 2014-03-07, 8:38, Rohrberg, Timo wrote:

Hello Andreas,

thank you very much for your answer. Unfortunately, I'm not completely
sure if I understood the reasoning for NOT switching to non-SNAPSHOT
versions for bundles and features...

Let's assume, I have a project consisting of one parent POM project
(packaging type "pom"), a number of bundles (packaging type
"eclipse-plugin"), a number of features (packaging type
"eclipse-feature"), and a number of product projects (packaging type
"eclipse-repository"). When creating a release, I first create a
branch. In that branch, I switch ALL versions from let's say
2.0.0-SNAPSHOT (and 2.0.0.qualifier respectively) to 2.0.0. Then I tag
that branch and build my release from it. On the TRUNK, I switch ALL
versions to 2.1.0-SNAPSHOT as 2.1.0 will be the new version in the
future. What exactly is now the problem with the ordering difference
between OSGi-land and Maven-land?

Thanks for your clarification ;-).

Regards Timo >

-----Ursprüngliche Nachricht-----
Von: tycho-user-bounces@xxxxxxxxxxx
[mailto:tycho-user-bounces@xxxxxxxxxxx] Im Auftrag von Andreas Sewe
Gesendet: Dienstag, 4. März 2014 15:58
An: tycho-user@xxxxxxxxxxx
Betreff: Re: [tycho-user] Release OSGi bundles/projects with Tycho

Hi Timo,


for pure Maven projects, the maven-release-plugin allows for creating
releases of those projects including creation of SVN tags and version
bumping. Is there any similar approach within Tycho for OSGi
bundles/projects? I found some hints on [1] and [2], but those are
already some years old and do not seem to be very active recently...


I am not aware of anything besides the tycho-versions-plugin [1]. The tricky part is that you don't want to switch to non-SNAPSHOT versions for bundles and features (as 2.0.5 comes before 2.0.5.qualifer in OSGi-land but after 2.0.5-SNAPSHOT in Maven-land). On the other hand, parent POMs or eclipse-repository artifacts do deserve a non-SNAPSHOT version.

If you group them by using directories like plugins, tests, and features, this is quite easy to do on the shell. Here's what I do when releasing Eclipse Code Recommenders, for example [2,3]:


export RELEASE=2.0.5
export NEXT=2.0.6
mvn clean org.eclipse.tycho:tycho-versions-plugin:set-version
-Dproperties=recommenders-version -DnewVersion=${RELEASE} # Revert
bundles and features to .qualifer mvn
org.eclipse.tycho:tycho-versions-plugin:set-version -Dartifacts=$(basename plugins/*/ tests/*/ features/*/ | paste -sd "," - ) -DnewVersion=${RELEASE}-SNAPSHOT git commit -a -m "[releng] ${RELEASE}"
git checkout HEAD^ -- '*'
mvn clean org.eclipse.tycho:tycho-versions-plugin:set-version
-Dproperties=recommenders-version -DnewVersion=${NEXT}-SNAPSHOT git commit -a -m "[releng] ${NEXT}-SNAPSHOT"


Hope that helps.

Andreas

[1]
<http://www.eclipse.org/tycho/sitedocs/tycho-release/tycho-versions-pl
ugin/plugin-info.html>
[2]
<https://git.eclipse.org/c/recommenders/org.eclipse.recommenders.git/c
ommit/?id=b34ee9f5cc96c2da21b24f6c6dfa62e8a518fa1e>
[3]
<https://git.eclipse.org/c/recommenders/org.eclipse.recommenders.git/c
ommit/?id=edf112287fd49f6a700b4a980693945c1f387465>

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