Branches

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This page outlines the various OpenSim repository branches, what they are for, and our policy for what goes into it.
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__NOTOC__
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{{Quicklinks}}
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== Branches and Tags in the Git Repo ==
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OpenSimulator uses Git for its source code repository. The repository contains various branches and tags used to identify development branches and release branches of the code. The primary git repository is hosted on the opensimulator.org domain. A mirror is maintained on Github. The Github repo is sync'ed with the primary every 10 minutes.
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=== Git Repos ===
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* [http://opensimulator.org/viewgit/ '''Primary''' OpenSimulator Git Repo]
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* [https://github.com/opensim/ '''Mirror''' OpenSimulator Github Repo]
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* [https://bitbucket.org/opensimulator/opensim/src/master/ '''Mirror''' OpenSimulator Bitbucket Repo]
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* [https://bitbucket.org/opensimulator/libopenmetaverse/src/master/ libOpenMetaverse for OpenSimulator] - our fork of libOpenMetaverse
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=== Repositories in the Primary Git ===
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* [http://opensimulator.org/viewgit/?a=summary&p=opensim opensim] - the OpenSimulator source code
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* [http://opensimulator.org/viewgit/?a=tree&p=opensim-libs opensim-libs] - forks of third party libraries used in building OpenSimulator
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This page outlines the repository branches and tags; what they are for, and our policy for what goes into it.
  
 
Also read
 
Also read
* [[http://opensimulator.org/wiki/Submitting_code_to_OpenSim|Submitting Code]]
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* [[Submitting code to OpenSim|Submitting Code to OpenSim]]
  
== /trunk ==
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== Branches ==
The term 'trunk' refers to the trunk of a tree, the 'root branch' of the repository.
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It is intended to hold the bleeding-edge development.
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=== master ===
  
=== OpenSim Policy ===
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The master branch holds bleeding edge OpenSimulator development.
  
* Trunk is not guaranteed to function. It might be in the middle of a transition, or undergoing major overhaul.
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'''OpenSimulator Master Branch Policies'''
* Trunk should always build (this is checked thru our CI builder)
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* All tests should run green on trunk (this is also checked thru the CI builder)
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* Master is not guaranteed to function. It might be in the middle of a transition, or undergoing a major overhaul.
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* Master should always build
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* All tests should run green on trunk
 
* Code should have been reasonably tested
 
* Code should have been reasonably tested
  
== /tags/#major.#minor.#sub-stable ==
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'''Browse the master branch'''
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* [http://opensimulator.org/viewgit/?a=tree&p=opensim&h=refs/heads/master OpenSimulator master branch]
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=== New major Releases ===
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A new release is created for main master code.<br>
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* A tag with the full release version is added. (example 0.9.1.1).<br>
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* A Branch named as the release number is created.<br>
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* Master version is changed to at least the next minor number.<br>
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=== New minor Releases ===
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Minor releases will contain small changes or fixes to previous release.<br>
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In many cases master branch does correspond to the required release in this case it is just like a new release<br>
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On occasions it may be required to only include selected commits or even unique special code, in this case:
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* change (checkout) to the branch of release to be fixed (or tag on main)
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* Increment its minor version number(s).
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* Create a new branch named as that version.
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* do the fixes
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* release
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=== Release Candidates ===
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Release candidates should be just snapshots of main code<br>
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except any special reason, they may have at most a TAG on it<br>
  
The term 'tag' refers to labeling a certain revision with some information.
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=== Old procedure ( prior to 0.9x) ===
  
In OpenSim The label 'stable' merely needs 'a little less unstable than the rest' and the revision is often tagged some time after it was committed, when people have been using it for a while and seen it working.
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Old procedure used extra names like '-Release' and '-postfixes' after the version name.<br>
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All releases should have their own version number.<br>
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Lower digits of a version name are clear and enough identification for minor changes and bug fixes<br>
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Something like  0.7.0.1-Release and 0.7.0.1-post-fixes was just redundant and confusing<br>
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Under new format this would be just 0.7.0.1 and 0.7.0.2<br>
  
This should only be used as an recommendation and in no way implies any extra stability or feature-richness.
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=== Other Branches ===
  
An example would be the /tags/0.6.0-stable tag.
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Other branches mainly contain temporary development work, for example to develop new code without disturb current master
  
=== OpenSim Policy ===
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'''Browse a list of all branches'''
  
* We should strive to up the #sub at least once a month, to keep it useable and as a viable point of recommendation.
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* [http://opensimulator.org/viewgit/?a=summary&p=opensim List of Branches (see bottom of page)]
* Revisions that are candidates for 'stable' tags should have been tested for at least a week.
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* Any interface breaking changes between version numbers should be documented.
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* Tools to aid in the transition from one version number to another should be supplied.
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== /branches/#major.#minor.#sub-post-fixes ==
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== Tags ==
  
The term 'branch' refers to a code path 'forking' off the 'trunk' - code changes that start from a certain revision, and then diverge from that. The act of bringing the changes in a branch back into trunk is called 'merging'.
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Tags were originally used to trigger the automatic release build process. When it was time for a release, a <version>-release tag was applied to a branch, triggering the automated process that produced the release tarballs. For more details see [[Automated Release Building]]. Tags continue to be used to mark releases but may also be used for other purposes.
  
The 'post-fixes' branch is copied from the corresponding 'stable' tag, and then selected revisions are merged into it from trunk. Ideally, it should be the most stable and secure revision of that particular OpenSim version.
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'''Browse a list of all tags'''
  
=== OpenSim Policy ===
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* [http://opensimulator.org/viewgit/?a=tags&p=opensim List of all tags]
The branch post-fixes should only include code changes that
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* Addresses drm and security issues
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* Cleanly furthers stability and performance. With 'cleanly' is meant that the changes are local enough and simple enough that they show little risk of introducing new security or stability bugs.
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* Cleanly adds debugging and/or reporting features to help further work with stability and security on the post-fixes branch.
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Latest revision as of 08:34, 27 November 2023

[edit] Branches and Tags in the Git Repo

OpenSimulator uses Git for its source code repository. The repository contains various branches and tags used to identify development branches and release branches of the code. The primary git repository is hosted on the opensimulator.org domain. A mirror is maintained on Github. The Github repo is sync'ed with the primary every 10 minutes.

[edit] Git Repos

[edit] Repositories in the Primary Git

  • opensim - the OpenSimulator source code
  • opensim-libs - forks of third party libraries used in building OpenSimulator

This page outlines the repository branches and tags; what they are for, and our policy for what goes into it.

Also read

[edit] Branches

[edit] master

The master branch holds bleeding edge OpenSimulator development.

OpenSimulator Master Branch Policies

  • Master is not guaranteed to function. It might be in the middle of a transition, or undergoing a major overhaul.
  • Master should always build
  • All tests should run green on trunk
  • Code should have been reasonably tested

Browse the master branch

[edit] New major Releases

A new release is created for main master code.

  • A tag with the full release version is added. (example 0.9.1.1).
  • A Branch named as the release number is created.
  • Master version is changed to at least the next minor number.

[edit] New minor Releases

Minor releases will contain small changes or fixes to previous release.
In many cases master branch does correspond to the required release in this case it is just like a new release
On occasions it may be required to only include selected commits or even unique special code, in this case:

  • change (checkout) to the branch of release to be fixed (or tag on main)
  • Increment its minor version number(s).
  • Create a new branch named as that version.
  • do the fixes
  • release

[edit] Release Candidates

Release candidates should be just snapshots of main code
except any special reason, they may have at most a TAG on it

[edit] Old procedure ( prior to 0.9x)

Old procedure used extra names like '-Release' and '-postfixes' after the version name.
All releases should have their own version number.
Lower digits of a version name are clear and enough identification for minor changes and bug fixes
Something like 0.7.0.1-Release and 0.7.0.1-post-fixes was just redundant and confusing
Under new format this would be just 0.7.0.1 and 0.7.0.2

[edit] Other Branches

Other branches mainly contain temporary development work, for example to develop new code without disturb current master

Browse a list of all branches

[edit] Tags

Tags were originally used to trigger the automatic release build process. When it was time for a release, a <version>-release tag was applied to a branch, triggering the automated process that produced the release tarballs. For more details see Automated Release Building. Tags continue to be used to mark releases but may also be used for other purposes.

Browse a list of all tags

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