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How to contribute to SST-Macro

Source Code Repository

  • SST-Macro is the repository for the Sandia developed SST Simulation Macro. The repository is hosted on GitHub.

    • An understanding of git scm is essential to developing code for SST.
    • There are 2 primary branches used for SST development
      • devel - Contains the latest offical codeset of SST-Macro. This branch is unstable and may be broken at any time.
      • master - Contains the latest fully tested stable version of SST-Macro.

  • Repository to SST-Macro is located here.

  • Questions can be sent to [email protected]

Issues

  • Ensure the bug was not already reported by searching on GitHub under Issues.

  • If you're unable to find an open issue addressing the problem, open a new one. Be sure to include:

    • A title and clear description
    • As much relevant information as possible
    • A code sample or an executable test case demonstrating the unexpected behavior.

Forked Development

To contribute code to the sst-macro repo, you must create a fork of the repo and setup for forked development.

Creating a Fork

A fork is simply a personal copy of the repo on github for example the official sst-macro repo is located here:

https://github.com/sstsimulator/sst-macro

my fork of that repo is here:

https://github.com/fryeguy52/sst-macro

The way to create your own fork is to click the fork button in the upper right while you are at the official repo. Once you have done that you can simply clone

git clone [email protected]:fryeguy52/sst-macro.git
Getting updates from the official repo to your local clone

Your fork will not automatically get updates from the official repo but you will want to regularly get those updates, especially as you are starting a new branch. The easiest way to do this is to tell the devel branch in your local repo to track the devel branch on the official repo. First create a new remote, then point the devel branch to that remote.

git checkout devel
git remote add sst-official [email protected]:sstsimulator/sst-macro.git
git pull --all
git branch devel --set-upstream-to sst-official/devel

You can verify that things are setup correctly

git remote -vv
origin       [email protected]:fryeguy52/sst-macro.git (fetch)
origin       [email protected]:fryeguy52/sst-macro.git (push)
sst-official [email protected]:sstsimulator/sst-macro.git (fetch)
sst-official [email protected]:sstsimulator/sst-macro.git (push)

git branch -vv
  devel  be1b790 [sst-official/devel: ahead 82, behind 61] Merge pull request #496 from sstsimulator/devel
* master be1b790 [origin/master] Merge pull request #496 from sstsimulator/devel

you should see that the sst-official is pointing to the official repo and that the devel branch in you local repo is pointing to sst-official/devel. Now all you need to do to get updates from the official sst-macro repo devel branch is:

git checkout devel
git pull

Now you can branch from devel to create new features and when you push those feature branches they will push to your fork. When you pull devel, it will get updates from the official sst repo

Feature branches

Once a local clone has more than 1 remote (origin and sst-official in this case) you will need to tell git which remote to track for a new branch. This requires one additional step when pushing a branch for the first time. I personally like to push the branch right after I create it like shown below.

git checkout devel
git pull
git checkout -b my-new-feature-branch
git push --set-upstream origin my-new-feature-branch
<making changes ...>
git add <approprite files>
git commit
git push

once you are done with the feature and would like to get changes to the official repo, you will do that with a pull request from the branch on your fork to the devel branch on the official repo. This is done through the github UI.

More cleanup of local forked repo (optional)

You can also set your master branch to get updates from the official repo.

git checkout master
git branch master --set-upstream-to sst-official/master
git pull

If you desire to keep synchronized with the branches of the official repo, you can occasionally fetch with prune to clear out any remote-tracking references

git checkout devel
git fetch --all --prune

Patches to existing code to fix an issue

  • Create a issue-fix branch on your forked repo derived from the sst-macro/devel branch
  • Make all required changes to correct the issue. All the changes must be commited to the issue-fix branch.
  • Open a new GitHub pull request from the issue-fix branch to the sst-macro/devel branch.
    • CRITICAL: ENSURE THAT PULL REQUEST IS TARGETED TO THE sst-macro/devel BRANCH.
    • Ensure the Pull Request description clearly describes the problem and solution. Include the relevant issue number if applicable.
    • DO NOT ATTEMPT TO MERGE THE issue-fix branch, it will be merged via the normal workflow process.
    • DO NOT DELETE THE issue-fix branch, until it is merged.
  • The AutoTester tool will run and perform testing and merge the Pull Request as described below.

New Feature

  • Create a new-feature branch on your forked repo derived from the sst-macro/devel branch
  • Make all required changes to implement the new feature(s). All the changes must be commited to the new-feature branch.
  • Open a new GitHub pull request from the new-feature branch to the sst-macro/devel branch.
    • CRITICAL: ENSURE THAT PULL REQUEST IS TARGETED TO THE sst-macro/devel BRANCH.
    • Ensure the Pull Request description clearly describes the new feature, and any relevant information.
    • DO NOT ATTEMPT TO MERGE THE new-feature branch, it will be merged via the normal workflow process.
    • DO NOT DELETE THE new-feature branch, until it is merged.
  • The AutoTester tool will run and perform testing and merge the Pull Request as described below.

SST AutoTester (CI Testing)

  • When a Pull Request is created against the sst-macro/devel branch, the SST AutoTester application will automatically run (usually within 30 minutes) and will build and test the source branch of the Pull Request.
    • Testing is performed across a number of different platforms
    • If the test suites pass, then the Pull Request will be setup for manual merging by SST-Macro staff.
    • The testing is not all inclusive, it is possible for a bug related to a specific platform to slip in. See Nightly Testing below.

Nightly Testing

  • Every night, a full regression test of all the code will be tested across all supported platforms. If the testing is successful, then a Pull Request from the sst-macro/devel branch to the sst-macro/master will be created and automatically merged.
    • The sst-macro/master branch will always contain the latest fully tested stable version of SST-Macro