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Difference between revisions of "WTP/Retention Policy"

< WTP
(Features in update site repository)
(Update sites)
 
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== Retention Policy for WTP builds ==
 
== Retention Policy for WTP builds ==
  
=== Code in CVS ===
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=== Git sources ===
  
Any code that was included in a Release, is left in CVS forever. The version a module that is included in a release will typically have a convenience version tag on the module, such as "R3_1_2", but the releng map files are the definitive authority on what was included in a release. The map files are given convenience tags, such as "R3_1_2", but they are also tagged each build, if there is ever any doubt. Those build tags would be something like "vM20100211202452" where the date-time-stamp matches the one on the download page and zip file names.  
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Any code included in a release is left in a git branch forever, but may be deleted from the master branch.  
  
=== Distributions in zip files ===
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Branches are created for convenience and follow one of two conventions: R3.10.x or R3_10_maintenance. Starting with 3.11, maintenance builds are highly unlikely to be done, since minor releases will be released every 13 weeks.
  
Formal releases are kept forever, but only the most recent release is kept on the [http://download.eclipse.org/webtools/downloads/ main download page]. Other, older distributions can be found on the [http://archive.eclipse.org/webtools/downloads/ archive site].  
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[https://wiki.eclipse.org/WTP_Gerrit_Access#Clone_a_repository_for_development A list of the current git repos is here].
  
While developing a new releases, milestone builds are kept until the release, at which point they are deleted.
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=== Distributions in zip files ===
  
Similarly, while developing a milestone, weekly integration builds are kept until the milestone is available, and then they are deleted.
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Current releases can be found here: http://download.eclipse.org/webtools/downloads/drops/
  
=== Features in update site repository ===
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Old releases are archived here: http://archive.eclipse.org/webtools/downloads/drops/
  
Changed beginning with 3.1.1 and 3.1.2. <del>
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While developing a new release, milestone builds are kept until the release, at which point they are deleted.
Only the most recent release (and/or patches) are kept on the update site. The goal is to allow users to update to the latest code from what they have installed, but we don't support updating to some previous release. For example, if we come out with a "3.0.3", the "3.0.2" version won't be on the update site any longer. So, someone with "3.0.0" installed could update to "3.0.3", but they could no longer update only to "3.0.2", once 3.0.3 was released.</del>
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The update site repository will be treated as a persistent repository of content. (From WTP 3.1.1, onward.) Once something is installable from a release repository URL, it will always be installable from that repository URL. This policy technically, currently applies to only WTP, since Eclipse Foundation as a whole currently does not have an Eclipse-wide policy, but its expected our prerequisite projects will do similar (and beginning with Galileo SR1, all Simultaneous Release projects will be persisted, even if the Project does not manage it themselves). Note that the efficiency of installing old releases may not be maintained. That is, they would be expected to be slower, as eventually old artifacts will be moved to the eclipse archives, and no longer mirrored. Also, the "categories" that display the features in Eclipse 'Install New Software' dialog will change over time, but the underlying features and bundles will be there, even if not displayed in a category.
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Similarly, while developing a milestone, weekly integration builds are kept until the milestone is available, and then they are deleted.
  
Starting with Helios, our plan is that our "update site URL" in features and otherwise "published for use", will refer to a software repository, specific to a yearly release. For example,
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=== Update sites ===
  
http://download.eclipse.org/webtools/repository/helios, or (for the next release)
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The following update sites are composites of the most recent milestones or releases for a given stream. They are guaranteed to work for a couple years.  
http://download.eclipse.org/webtools/repository/indigo
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If they stop working, just [https://bugs.eclipse.org/bugs/enter_bug.cgi?product=WTP%20Releng open a bug].
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http://download.eclipse.org/webtools/repository/latest/
  
Under the covers, we plan to have a directory structure that allows easy composites sites to be made, such as
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http://download.eclipse.org/webtools/repository/photon/
 
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http://download.eclipse.org/webtools/repository/oxygen/
  repository/helios/sr0
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http://download.eclipse.org/webtools/repository/neon/
  repository/helios/sr1
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http://download.eclipse.org/webtools/repository/mars/
  repository/helios/sr2
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  repository/indigo/sr0
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  repository/indigo/sr2
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  repository/indigo/sr3
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but only the high-level release-specific URL can be counted on as "api-like" and persistent. The subdirectories will vary and not necessarily be persistent.
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=== Zip files for patches or update sites ===
 
=== Zip files for patches or update sites ===
  
The [http://download.eclipse.org/webtools/patches/ patch builds] are not retained.  
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The [http://download.eclipse.org/webtools/patches/ patch builds] are not guaranteed to be retained, but may survive for some time.  
  
 
Granted, some of them have been around a long time, but there is no guarantee or predicable time line. The builds are created at the request of committers, usually for some specific adopter problem, and generally not for general use. They are use-at-your-own risk, if someone does want to use it, since hasn't been through the usual review and test cycle.  
 
Granted, some of them have been around a long time, but there is no guarantee or predicable time line. The builds are created at the request of committers, usually for some specific adopter problem, and generally not for general use. They are use-at-your-own risk, if someone does want to use it, since hasn't been through the usual review and test cycle.  
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There are some cases, when updates are created in the form of feature patches and put on the public update site. These require PMC review/approval since could effect general users and all adopters. These patches on the update site will follow the update site repository policy.
 
There are some cases, when updates are created in the form of feature patches and put on the public update site. These require PMC review/approval since could effect general users and all adopters. These patches on the update site will follow the update site repository policy.
  
=== Complicating Situations ===
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After WTP 3.10, patch builds will only be done VERY SPARINGLY for blocker issues, since a new minor release is no more than 13 weeks away, and CI builds are available all the time as commits are pushed to master branch.
 
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The above rules apply to each sub-project within WTP, primarily for the yearly Simultaneous Release. A project can have an off cycle release, but essentially the same rules apply, for any formal release.
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=== What if these policies don't work for you? ===
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Just ask. Open a bug or post a note to wtp-releng and request what you need.
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For example, an adopter might be building against an I-build, and isn't ready to move up to a particular milestone build for a few more weeks, so they'd prefer some I-build to not be removed at the end of the milestone.  
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In other words, we are glad to be accommodating, but don't want to accommodate every hypothetical combination, since it's more work for us, we don't test it, and requires higher disk and bandwidth on the Eclipse mirroring system. So, open a bug in releng if something special is required.
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=== Getting Help, Getting Started, Contributing ===
  
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If the above schedule doesn't meet your needs, feel free to contribute to the project! We're always looking for new hands, eyes, and brains.
  
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* [https://wiki.eclipse.org/WTP_Gerrit_Access#Clone_a_repository_for_development Clone a repo, and check out the code]
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* [https://bugs.eclipse.org/bugs/enter_bug.cgi?classification=WebTools Submit a Bugzilla]
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* [https://git.eclipse.org/r/#/dashboard/self Monitor your gerrit submissions]
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* [https://wiki.eclipse.org/WTP_Whos_Who Find a committer, project lead, or PMC member]
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* [https://wiki.eclipse.org/Category:Eclipse_Web_Tools_Platform_Project All the WTP Wiki pages]
  
 
[[Category:Eclipse Web Tools Platform Project]][[Category:Process and Policies| ]]
 
[[Category:Eclipse Web Tools Platform Project]][[Category:Process and Policies| ]]
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[[Category:WTP Releng]]

Latest revision as of 09:49, 4 July 2018

Retention Policy for WTP builds

Git sources

Any code included in a release is left in a git branch forever, but may be deleted from the master branch.

Branches are created for convenience and follow one of two conventions: R3.10.x or R3_10_maintenance. Starting with 3.11, maintenance builds are highly unlikely to be done, since minor releases will be released every 13 weeks.

A list of the current git repos is here.

Distributions in zip files

Current releases can be found here: http://download.eclipse.org/webtools/downloads/drops/

Old releases are archived here: http://archive.eclipse.org/webtools/downloads/drops/

While developing a new release, milestone builds are kept until the release, at which point they are deleted.

Similarly, while developing a milestone, weekly integration builds are kept until the milestone is available, and then they are deleted.

Update sites

The following update sites are composites of the most recent milestones or releases for a given stream. They are guaranteed to work for a couple years.

If they stop working, just open a bug.

http://download.eclipse.org/webtools/repository/latest/
http://download.eclipse.org/webtools/repository/photon/
http://download.eclipse.org/webtools/repository/oxygen/
http://download.eclipse.org/webtools/repository/neon/
http://download.eclipse.org/webtools/repository/mars/

Zip files for patches or update sites

The patch builds are not guaranteed to be retained, but may survive for some time.

Granted, some of them have been around a long time, but there is no guarantee or predicable time line. The builds are created at the request of committers, usually for some specific adopter problem, and generally not for general use. They are use-at-your-own risk, if someone does want to use it, since hasn't been through the usual review and test cycle.

There are some cases, when updates are created in the form of feature patches and put on the public update site. These require PMC review/approval since could effect general users and all adopters. These patches on the update site will follow the update site repository policy.

After WTP 3.10, patch builds will only be done VERY SPARINGLY for blocker issues, since a new minor release is no more than 13 weeks away, and CI builds are available all the time as commits are pushed to master branch.

Getting Help, Getting Started, Contributing

If the above schedule doesn't meet your needs, feel free to contribute to the project! We're always looking for new hands, eyes, and brains.

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