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Contributing to vmware-image-builder-action

The vmware-image-builder-action project team welcomes contributions from the community. Before you start working with vmware-image-builder-action, please read our Developer Certificate of Origin. All contributions to this repository must be signed as described on that page. Your signature certifies that you wrote the patch or have the right to pass it on as an open-source patch.

Contribution Flow

This is a rough outline of what a contributor's workflow looks like:

  • Create a topic branch from where you want to base your work
  • Make commits of logical units
  • Make sure your commit messages are in the proper format (see below)
  • Push your changes to a topic branch in your fork of the repository
  • Submit a pull request

Example:

git remote add upstream https://github.com/vmware-labs/vmware-image-builder-action.git
git checkout -b my-new-feature main
git commit -a
git push origin my-new-feature

Staying In Sync With Upstream

When your branch gets out of sync with the vmware-labs/main branch, use the following to update:

git checkout my-new-feature
git fetch -a
git pull --rebase upstream main
git push --force-with-lease origin my-new-feature

Updating pull requests

If your PR fails to pass CI or needs changes based on code review, you'll most likely want to squash these changes into existing commits.

If your pull request contains a single commit or your changes are related to the most recent commit, you can simply amend the commit.

git add .
git commit --amend
git push --force-with-lease origin my-new-feature

If you need to squash changes into an earlier commit, you can use:

git add .
git commit --fixup <commit>
git rebase -i --autosquash main
git push --force-with-lease origin my-new-feature

Be sure to add a comment to the PR indicating your new changes are ready to review, as GitHub does not generate a notification when you git push.

Code Style

Formatting Commit Messages

We follow the conventions on How to Write a Git Commit Message.

Be sure to include any related GitHub issue references in the commit message. See GFM syntax for referencing issues and commits.

Formatting Code

We do use ESLint as a tool to ensure a consistent format. A format check step runs as part of our continuous integration and pull requests get failed checks if they don't adhere to the conventions. To make sure your contribution is properly formatted you can run the following:

npm run lint

The format script can also be used to make ESLint automatically apply the format guidelines:

npm run format

Static Analysis

As part of our continuous integration workflow we do pass ESlint to all pull requests. To make sure that your contribution passes all the static checks you can use:

npm run lint

Tests

We value highly-tested software. All pull requests should come accompanied by corresponding unit tests. Integration tests are also welcomed. To make sure that your contribution isn't causing any regression we run the test suite as part of our continuous integration process. You should also make sure that all the tests pass before sending your pull request:

npm run test

Release Process

All stable code is hosted at the main branch. Releases are done on demand through the Release Action GitHub workflow. In order to release the current HEAD, you will need to trigger this workflow passing the version being released (i.e. v3.0.2).

Once triggered, the workflow will put the specified version on the package.json and package-lock.json, generate a release commit and tag, and roll the corresponding major. Then, all of that will be pushed back to GitHub. This mechanism lets users:

  • Stay synced with the main branch (@main)
  • Select a specific major train (@v1)
  • Pin a specific release (@v1.2.3)

Promotion Process

Upon any major release and sometimes with minor releases that might be needed by customers we will be promoting our releases to the GitHub Marketplace. Unfortunately, GitHub is not providing any automation for publishing GitHub Actions into their marketplace so this will essentially be a manual process until automation support is provided by their platform.

Reporting Bugs and Creating Issues

When opening a new issue, try to roughly follow the commit message format conventions above.