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Papyrus/Papyrus Developer Guide/Release Process: How To

< Papyrus‎ | Papyrus Developer Guide
Revision as of 05:06, 7 June 2018 by (Talk | contribs) (IP Log managment)

The Papyrus project is built using Tycho and orchestrated by this releng project.

The release engineer must have:

  • Unrestricted shell access to (log a bug to Community/Server to obtain SSH access: see bug 366699). To know if your shell is restricted, try to execute linux commands and see if you get disconnected.
  • The rights to launch jobs on the integration platform : (should come with the Papyrus committer rights, but can be granted by the platform admin)
  • Write access to /home/data/httpd/ (should come with the Papyrus committer rights)
  • Subscribed to the cross-project-issues-dev mailing list, on which discussions relevant to the releng activities take place

Hudson Jobs

The Papyrus builds are started from Hudson. The following jobs on the Neon branch exist currently. There should always be the following jobs on each release branch:

  • papyrus-Master : builds the main plug-ins of Papyrus
  • papyrus-Master-Analysis : static analysis of the code, i.e. findBugs, sonar...
  • papyrus-Master-Tests : builds the tests for the main plugins of Papyrus
  • papyrus-Master-Tests-Failures : tests identified as failed, not regressions, kept to keep the main tests clean and without spams
  • papyrus-Master-Developer : developer tools, such as debug views in eclipse, papyrus diagram code generator and building tools
  • papyrus-Master-Extra : builds the "extra" plug-ins of Papyrus (Neon and previous versions)
  • papyrus-Master-Extra-Tests : builds the tests for the "extra" plug-ins (Neon and previous versions)

See all the currently defined Papyrus jobs on the page :<release_name> You can add the name of the eclipse release to find the associated jobs, i.e. Mars, Luna...

Before starting a build

General Information

Unlike Nightlies, Milestone builds, contributed to the release train, are publicly available to anyone downloading the latest Developer Build of Eclipse. This implies a few differences in terms of quality of the release:

  • All artifacts must be signed, using the Eclipse Certificate
  • The build must be as stable as possible. Especially, any Blocker or Critical bug must be fixed before the release
  • All License files must be available and up-to-date
  • All plug-in metadata must be defined (Especially, bundle name, bundle vendor and feature description)
  • The Papyrus update site must contain everything that is not already contained in the Eclipse Simrel repository (i.e. any plug-in from an Eclipse Project that is not in the release train)

Must Have

As a rule of thumbs, before starting your build journey it is preferable to possess a clean install of the Eclipse you want to test your build against. Then install the following on it (some may require you to fetch previously build components from other projects that contributes earlier in the train:

Use an Eclipse with Papyrus developer tools installed from the following update site, eg for the XYZ version: 

This install might need you to posses the following papyrus nightly build address in your available update sites as the developper tools depends on some plugins contained in it:  

Install the tpd updater tool from this Github project from this update site: 

Papyrus (a clean clone is also useful to have for the builds as it will be much less susceptible to be corrupted by your daily work):


Simrel on which you will later post your updated aggregator file:


Another should have, not mandatory but useful, is the b3 aggregator editor to get a clearer view of the aggregator files in the simrel repository:

Release steps - Mandatory

As mentioned before, the release is orchestrated through the pom.xml files. These files must include all features, plugins and update sites that are necessary for the code to compile, either directly or indirectly.

The releng's pom.xml files also specifies how to get the plug-ins and features that are to be built and specifies the update sites from which to retrieve the binary dependencies from the dependent projects.

Update the target platforms' dependencies

These files reflect the dependencies on other projects. Hence, it must be updated before each milestone, at the very least, to make sure that the code that is built works with the latest versions of all the dependencies.

The easiest way to update the dependencies is to copy them from the aggregation build model, which all projects must fill in with the correct reference to their update site(s) and feature(s).

This model is in a project with the release name on the Eclipse Git:

Clone the simrel repository

Import the simrel project

First: Verify that the branch is up to date

Verify that the branch is up to date (fetch and rebase or a pull).

git fetch origin
git rebase origin/master

update the local repository

Be on the correct branch of the simrel repository before selecting the aggregation model in order to have the correct addresses of the papyrus' version dependencies (master or <release_name>_maintenance, e.g. Luna_maintenance) as the models will differ from one another and result in erroneous updates.

The branches corresponding to the different <release_name>

The simrel model used to update the dependencies

Second: Update the Target Platforms

Update the target's dependencies adresses to the latest release available.

Update the dependencies of the selected poms

Then verify that both the .tpd and .target have been correctly updated and that the changes are coherent (e.g. with eclipse, Compare with > HEAD revision).

A few dependencies are not in the aggregation build model though, so they must be updated manually (e.g. nebula). To get them check the tpd's '// manualUpdate' tags.

find . -name "*.tpd" | xargs grep -a2 -n "manualUpdate" {}

Finding manual dependencies update site

If you don't know where a particular plug-in or feature is located, the easiest way to find it is to search the Eclipse download area using "find" on the ssh of For example, using the ssh connection to the eclipse repository, to look for "" :

find /home/data/httpd/ -name 'org.eclipse.emf.compare_*'

Update Oomph setup file

A good/nice practice is to also update Oomph's papyrus.setup while we are at it. An integrated developer tool is available to do this under the contextual menu "Update dependencies from aggregation build model" (i.e. the simrel aggregation files)

Push the modifications on gerrit

There should be a Bug listing all the releng maintenance (e.g. The oxygen releng bug) linking all the commits done. Therefore when pushing to the papyrus' gerrit you should use the standardized message :

  • Bug XXXXXX [Releng] Update dependencies for <release_name> <Milestone> (e.g.: Bug 525277 [Releng] Update dependencies for Oxygen M7).

Then wait for The build instance to validate the contribution and for a committer to merge the changes.

Release steps - Optionals

Updating the versions

During a release you can have to update the plugin versions and their linked features and categories as the API and other contents of the plug-in change, in accordance with the Eclipse Versioning Guidelines. The PDE API Tooling builders help to identify version number changes that are required by flagging problems on the bundle manifests. Also, if enabled, the Oomph Version Management builders perform additional checks, including;

  • consistency of POM version number with plug-in/feature manifest
  • ripple effect of bundle version number changes up to features that include them

Also, be aware that some version number changes also require updates to other metadata, such as the category.xml and the *.product definition files for any RCP packages (especially for feature version changes).

As of the Neon release, Papyrus plug-in and feature versions are not bulk updated to the "next" version number as they were in previous releases. Accordingly, (tests>junit>plugins>developer>org.eclipse.papyrus.bundle.tests) no longer tracks the expected current version number of bundles. Correct versions are enforced by PDE and Oomph tooling.


Builds, master and maintenance, are run automatically every night, every day and each half an hour if there has been a change in the code base. Tests are run twice a day as they take quite a bit of time. When a build following specific changes is required, wait for the gerrit contribution to be merged and launch the main build and then the Tests. Once both are successful launch a signed build for each of them.

Note that the tests depend on the xxx-Developer build. Therefore don't forget to launch this one before or you will have an error (in case of a version update for example as the tests will only find the old version).

How to start a build

Only committers or release engineers in the Papyrus project can launch Papyrus build jobs from Hudson.

Go to the desired page if you want to launch a selected build (e.g.: The Oxygen page).

Enter the build parameters


  • In Hudson, click on Build Now, change the #Build parameters as needed, and click on Build.
  • You can then click on the job name in the Build History section in the left column, and then on Console Output, to follow build progress in real time.

Build parameters

Hudson builds expect these parameters:

  • BUILD_ALIAS : the name of the release (0.9.0, 1.1.0M6, etc.); leave it blank for nightly and integration builds
  • SIGN : whether to sign the update site (can take up to an hour on the Eclipse build server); mandatory for all builds except nightlies


  • Don't forget to do the same manipulation for the Master-Extra.
  • Keep both build ids, you will need them for the manual publish
  • Keep both green jobs artifacts by clicking "Keep this job forever", at least during the release process

Tip: As the signing of the build can take quite a long time, it is recommended to launch a non-signed build first. Then launch the tests against the unsigned build as it already is what will be published. As the tests roughly take the same amount of time you can see if the current build passes the tests without having to wait the extra time needed by the signing step.

Publish a build

Successful Nightly builds are automatically published to :

Before Publishing

Stable builds are not automatically published. They should be first tested internally before publishing.


To publish a milestone or release from a build, you can use the following scripts on: /opt/public/modeling/mdt/papyrus/

  • manualPromote-[release_name].sh

if there are any doubt on which to use, you can always search the repository for the present promote scripts and pick the correct one: ls -la .

Start this script, and fill in the parameters in the interactive script:

  • the signed builds numbers
  • the corresponding version
  • the update site in which to publish it

Be careful however as Hudson does not make, as of yet, a zip for the tests and the current script will crash if a build number is provided and it does not find any corresponding zip. This may lead to some, fixable but annoying, access permissions problems.

For example:


In the previous example, the script will:

  • publish the main Papyrus plug-ins from Papyrus-Master build #1600 to the Papyrus download in "drops/1.1.0" and the update site in "milestones/1.1/RC3/main"
  • publish the extra plug-ins from Papyrus-Master-Extra build #1237 to the Papyrus download in "drops/1.1.0" in the same build folder as the main build, and the update site in "milestones/1.1/RC3/extra"
  • do not publish the test results from Papyrus-Master-Tests build
  • make "milestones/1.1/RC3" a composite update site, which contains "milestones/1.1/RC3/main" and "milestones/1.1/RC3/extra"
  • enable p2 download statistics both on "milestones/1.1/RC3/main" and "milestones/1.1/RC3/extra"
  • set the correct linux access rights on the new folders

Once the script is done, all you have left to do is to:

  • Tag the last commit: Releases should have a tag like 1.1.0, and milestones like 1.1.0_M6
    • git tag -a 2.0.1_RC4 -m "Create the tag 2.0.1_RC4" d4c28a3b7c1c46cf5407bbfae2eda602eb4480c7
    • git push origin 2.0.1_RC4

Add a new update site with the new build to the parent composite (~/downloads/modeling/mdt/papyrus/updates/milestones/1.1/):

  • update both the compositeContent.xml and compositeArtifacts.xml files of the update site (that are located in the parent of the folder to which you extracted the update site) to add a reference to your newly added update site
    • set the value of p2.timestamp to the result of "date +%s000"
    • increase the "size" attribute of the children element
    • add a "child" element inside the "children" element with a "location" set to the name of the folder (e.g "M6")

The values to edit

Builds can be hidden from this page before a release by modifying downloads-scripts.php in /downloads/ on git://

Simultaneous Release

If the build must be part of the simultaneous release, you must also:

  • Use the B3 Aggregator (or a text editor if the modification is trivial) and push to the simrel's gerrit which path is :

Usually, the only thing to change is the location (for example "milestones/1.1/M6/main"):

<repositories location="" description="Papyrus">
Previous composite address

Updated composite address

Tip: You can check the status of the contribution at simrel's gerrit page

Finalizing the Release

When the release is complete and has been tagged in the repository, it is time to prepare the next release's development branch for continued version management. One aspect of this is ensuring that the Oomph Version Management tool's reference baseline for the next release completely and correctly describes the release just completed.

Oomph maintains a description of the release in the release.* files in the Papyrus release bundles in the plugins/developer tree. So far, these are:

  • oep.releng.main.release for the Papyrus Main product bundles and features
  • for the Papyrus Developer Tools bundles and features

The release.xml file is a manifest of all of the features and bundles, with their versions and the relationships between them, that comprise the Papyrus Release and the release.digest is a more efficient binary representation of the same that is loaded by Oomph tooling when needed. The Oomph Version Management builder creates these automatically from the current workspace and PDE target configuration, so long as all of the Papyrus feature projects are in the workspace. To rebuild the release description, simply delete the release.xml and release.digest files and they will be rebuilt with all of the requisite metadata to describe what is now the "previous release" reference baseline for the next release.

For this process to work you will need Oomph, Papyrus' developer tools installed on your eclipse and all the papyrus' features and plugins that you want to reference imported in your workspace (as a good practice it is preferable to import all of Papyrus so as to update all the references). If you do not, the tool will only be able to access and therefore log the ones present. After deleting the release.xml and release.digest simply clean and build both projects and both files will be created anew and updated. This step may result in Unresolved tags which in this case might impose you to complete the version numbers by hand if you have no alternative.


Check simrel reports

After the simrel build, you can check the reports at :

Check installations

Check installation from the simrel/staging update site at :

Check list to publish a release for papyrus project leader

IP Log managment

Review process

Official release (post RC4)

After you have released all the candidates, there usually is a quiet week when all the projects are to check for breaking or critical bugs. This time can be used, at the earliest, to initiate the final stage of the release plan.

Preparing the release

Eclipse servers

To prepare the official release, the final build will have to be copied from milestones/<versionnumber>/<RCx> to releases/<versionname>/<releasenumber>/ (e.g. cp -r ./milestones/2.0/RC4/ ./releases/neon/2.0.2/). This will allow the indexing of the future release and start the mirroring process.

You should also start to remove old milestone build as they are not needed anymore and take space. You can keep the RC builds but that's about it.

To do this you will have to log yourself to the repository via an ssh connection (e.g. ssh <login>

Papyrus Eclipse page

Do not forget to amend/complete the page dedicated to the release here. Verify that all the associated bugs are listed and the new and noteworthy that were integrated are mentioned and references=d. If some bugs were not treated in this release migrate the milestone to the next release.

Papyrus web page

Prepare a patch with the updated News and Downloads page in order to push them the day of the release. For this you will have to fetch the papyrus-Web repository here.

Update the RCP and the SDK versions

Release the RCP corresponding to the release. Do not forget to create a patch incrementing the SDK features and the RCP product in order to begin anew as soon as possible.

The day of the release

You will now have to:

  1. Amend the composites in the release folder to point to the new release
  2. Go to the drops folder and rename the the corresponding stable release S2016xxxxx to R2016xxxxx
  3. And finally rename the contained zip file from Papyrus-Update-xxxRCx to Papyrus-Update-xxx

Finally, do not forget to remind the Papyrus Head to communicate about the release:

  1. mail in the mailing list dev
  2. post on the forum

This will end the release process. Good job! :)

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