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How to Contribute
Release Committee: Hrvoje Jasak (firstname.lastname@example.org)
SourceForge Accounts: Bernhard Gschaider (Bernhard.Gschaider@ice-sf.at)
Martin Beaudoin (email@example.com)
git Repository: Henrik Rusche (firstname.lastname@example.org)
Martin Beaudoin (email@example.com)
1. SourceForge Access
To make contributions to the -extend project, you should first obtain an
account at SourceForge.net. (SourceForge will suggest a username
of firstnamelastname, but a username of firstname_lastname may
be a better choice.) After you obtain your account at SourceForge, you will
still need to be granted specific access to the -extend project. Make a request
to the "SourceForge Accounts" contact at the top of this document for access to
2. Access to the git Repository
For a read-only copy of the repository, use the following command:
+ git clone git://openfoam-extend.git.sourceforge.net/gitroot/openfoam-extend/OpenFOAM-1.6-ext
To obtain a copy of the repository with write access, use the following command:
+ git clone ssh://firstname.lastname@example.org/gitroot/openfoam-extend/OpenFOAM-1.6-ext
3. git Commit Policies and Workflow (Introduction)
A formal procedure for contributions has been established for the project with
regard to branching and commits in the git repository. The workflow proposed
by Hrv Jasak and Henrik Rusche for contributing to the git repository is described
in the following document:
The article listed above should be considered mandatory reading material
for those planning to make contributions to the repository. Some links about
the general usage of GIT can be found in Section 8.
Please do not hesitate to ask one of the "git Repository" contacts at the top
of this document if you are not sure about specific operation relative to the git
4. git Commit Policies and Workflow (User Perspective)
The document listed in Section 3 above from nvie.com provides an excellent conceptual
description of the policies that will be used for the -extend repository. More
detailed instructions for users who wish to make contributions are spelled out in
Before making any commits to the git repository, be sure to configure git with your
username and e-mail address, which helps to ensure that you receive proper credit
in the git repository for work you contribute.
The author's name and e-mail address can be provided to git using commands such
+ git config --global user.name "John Doe"
+ git config --global user.email email@example.com
Afterwards, the provided information will be contained in a file named .gitconfig
in the user's home directory.
All contributions to the project repository will be contained in a new feature branch
created by the contributor. The recommended way of creating branches is to create one
branch for each new specific fix or feature using a command such as this:
+ git checkout -b my-feature-branch
Feature branches should be named after the fix or feature that they contain,
*not* named after the author. There may be more than one author, after all, and
this information is recorded in the commit anyway. As an example, a bug fix
to the mesquite package should be committed to a branch named "hotfix/mesquite".
Carefully organized commits and branches, clear commit messages, and well-chosen
branch names will make it easier for the release committee to review and merge
When you have a feature branch that is ready to be merged, push it to the server
using a command such as this:
+ git push origin my-feature-branch
Next, notify the "Release Committee" point-of-contact listed at the top of this
document that the feature branch has been pushed to the server and is ready to be
merged. A release committee member will review your contribution, merge your
branch, and then delete the branch from the server, as it is no longer needed once
it has been merged.
If you need to delete the branch from the server or are requested to do so, the proper
+ git push origin :my-feature-branch
To delete the same branch from your local repository requires the command
+ git branch -d my-feature-branch
Finally, to clean your local repository of tracking branches that have been deleted
from the server requires the command
+ git remote prune origin
5. git Commit Policies and Workflow (Committee Perspective)
The -extend project "release committee" (initially comprised of Hrv Jasak) will be
solely responsible for merging user contributions into the master and nextRelease branches.
User contributions will be contained in feature branches, with a new feature branch for
each new fix or feature, as described in Section 4 above.
The feature branches provided by users will be merged by the release committee
into an integration branch called "nextRelease", and then both the local
and remote copy of the feature branch will be deleted. The merge will be performed
using a "git merge --no-ff" command, which forces the creation of a merge commit
even in the case where the merge could be accomplished by fast-forward.
Note that the automated test loop will be run off of this integration branch.
When the next release is ready, the release committee will merge the
integration branch into the master branch, again using a "git merge --no-ff" command.
Consistent with the proposed workflow, the master branch will only contain releases
Note that hotfixes should be branched off of the master branch and should be merged
twice - once into the integration branch and once into the master branch - in order to
guarantee that a merge of the integration branch into the master branch can be
accomplished by a fast-forward.
6. Specific Usage Instructions
In case you find out that something that should be a hotfix ended up in
your local feature branch, follow the steps below to ensure that the hotfix is
properly committed to the integration and master branches:
a. Single out the SHA-1 of the commit that contains the hotfix (e.g. 13e5d2f)
c. Create a new hotfix branch; e.g.
+ git checkout master
+ git checkout -b hotfix/my-hotfix-topic
b. Single out the commit and base it on the master branch; e.g.
# The fix is in a single commit, but localBranch has advanced
+ git cherry-pick commitID
# The fix is small, but the commit contains other changes
+ git checkout localBranch file
+ git commit
d. Contact the "Release Committee" point-of-contact at the top of this document
and request that the hotfix be merged into the integration and master branches.
7. Acknowledgements & Copyright
Your authorship is tracked by the version control system (git). You may also document
your authorship in the header of the files. Furthermore, the release committee will
update the list of contributors in the README file with every release.
8. Background Reading on git