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CONTRIBUTING.md

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Contributing to Vulkan Crash Disagnostic Layer repository

Contributions Welcome

The easiest method for contributing to Vulkan Crash Diagnostic Layer repository is to examine the issues list and look for areas that are of interest.

Furthermore:

  • If you have your own work in mind, please open an issue to describe it and assign it to yourself.
  • If you choose to work on an issue that is assigned, simply coordinate with the current assignee.

Submitting Fixes

  • Ensure that the bug was not already reported or fixed by searching on GitHub under Issues and Pull Requests.
  • Use the existing GitHub forking and pull request process. This will involve forking the repository, creating a branch with your commits, and then submitting a pull request.
  • Please read and adhere to the style and process guidelines enumerated below.
  • Please base your fixes on the main branch. SDK branches are generally not updated except for critical fixes needed to repair an SDK release.
  • The resulting Pull Request will be assigned to a repository maintainer. Once the Pull Request has been approved and is passing internal CI, a repository maintainer will merge the PR.

Coding Conventions and Formatting

  • Use the Google style guide for source code with the following exceptions:

    • The column limit is 132 (as opposed to the default value 80). The clang-format tool will handle this. See below.
    • The indent is 4 spaces instead of the default 2 spaces. Again, the clang-format tool will handle this.
    • If you can justify a reason for violating a rule in the guidelines, then you are free to do so. Be prepared to defend your decision during code review. This should be used responsibly. An example of a bad reason is "I don't like that rule." An example of a good reason is "This violates the style guide, but it improves type safety."

  • Run clang-format on your changes to maintain consistent formatting

    • There are .clang-format files present in the repository to define clang-format settings which are found and used automatically by clang-format.
    • A sample git workflow may look like:
   # Make changes to the source.
   $ git add -u .
   $ git clang-format --style=file
   # Check to see if clang-format made any changes and if they are OK.
   $ git add -u .
   $ git commit
  • Commit Messages
    • Limit the subject line to 50 characters -- this allows the information to display correctly in git/Github logs
    • Begin subject line with a one-word component description followed by a colon (e.g. layer/tool name, tests, etc.)
    • Separate subject from body with a blank line
    • Wrap the body at 72 characters
    • Capitalize the subject line
    • Do not end the subject line with a period
    • Use the body to explain what and why vs. how
    • Use the imperative mode in the subject line. This just means to write it as a command (e.g. Fix the sprocket)

Strive for commits that implement a single or related set of functionality, using as many commits as is necessary (more is better). That said, please ensure that the repository compiles and passes tests without error for each commit in your pull request. Note that to be accepted into the repository, the pull request must [pass all tests](#testing your changes) on all supported platforms -- the automatic Github Travis and AppVeyor continuous integration features will assist in enforcing this requirement.

Contributor License Agreement (CLA)

You will be prompted with a one-time "click-through" CLA dialog as part of submitting your pull request or other contribution to GitHub.

License and Copyrights

All contributions made to the LunarG repositories need to have the Apache 2.0 license. Please see an existing file in this repository for an example.

You can include your individual copyright after any existing copyrights.