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108 lines
4.9 KiB
Markdown
# Contributing to SDL
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We appreciate your interest in contributing to SDL, this document will describe how to report bugs, contribute code or ideas or edit documentation.
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**Table Of Contents**
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- [Filing a GitHub issue](#filing-a-github-issue)
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- [Reporting a bug](#reporting-a-bug)
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- [Suggesting enhancements](#suggesting-enhancements)
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- [Contributing code](#contributing-code)
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- [Forking the project](#forking-the-project)
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- [Following the style guide](#following-the-style-guide)
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- [Running the tests](#running-the-tests)
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- [Opening a pull request](#opening-a-pull-request)
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- [Continuous integration](#continuous-integration)
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- [Contributing to the documentation](#contributing-to-the-documentation)
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- [Editing a function documentation](#editing-a-function-documentation)
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- [Editing the wiki](#editing-the-wiki)
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## Filing a GitHub issue
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### Reporting a bug
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If you think you have found a bug and would like to report it, here are the steps you should take:
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- Before opening a new issue, ensure your bug has not already been reported on the [GitHub Issues page](https://github.com/libsdl-org/SDL/issues).
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- On the issue tracker, click on [New Issue](https://github.com/libsdl-org/SDL/issues/new).
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- Include details about your environment, such as your Operating System and SDL version.
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- If possible, provide a small example that reproduces your bug.
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### Suggesting enhancements
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If you want to suggest changes for the project, here are the steps you should take:
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- Check if the suggestion has already been made on:
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- the [issue tracker](https://github.com/libsdl-org/SDL/issues);
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- the [discourse forum](https://discourse.libsdl.org/);
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- or if a [pull request](https://github.com/libsdl-org/SDL/pulls) already exists.
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- On the issue tracker, click on [New Issue](https://github.com/libsdl-org/SDL/issues/new).
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- Describe what change you would like to happen.
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## Contributing code
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This section will cover how the process of forking the project, making a change and opening a pull request.
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### Forking the project
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The first step consists in making a fork of the project, this is only necessary for the first contribution.
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Head over to https://github.com/libsdl-org/SDL and click on the `Fork` button in the top right corner of your screen, you may leave the fields unchanged and click `Create Fork`.
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You will be redirected to your fork of the repository, click the green `Code` button and copy the git clone link.
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If you had already forked the repository, you may update it from the web page using the `Fetch upstream` button.
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### Following the style guide
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Code formatting is done using a custom `.clang-format` file, you can learn more about how to run it [here](https://clang.llvm.org/docs/ClangFormat.html).
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Some legacy code may not be formatted, as such avoid formatting the whole file at once and only format around your changes.
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For your commit message to be properly displayed on GitHub, it should contain:
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- A short description of the commit of 50 characters or less on the first line.
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- If necessary, add a blank line followed by a long description, each line should be 72 characters or less.
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For example:
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```
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Fix crash in SDL_FooBar.
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This addresses the issue #123456 by making sure Foo was successful
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before calling Bar.
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```
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### Running the tests
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Tests allow you to verify if your changes did not break any behaviour, here are the steps to follow:
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- Before pushing, run the `testautomation` suite on your machine, there should be no more failing tests after your change than before.
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- After pushing to your fork, Continuous Integration (GitHub Actions) will ensure compilation and tests still pass on other systems.
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### Opening a pull request
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- Head over to your fork's GitHub page.
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- Click on the `Contribute` button and `Open Pull Request`.
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- Fill out the pull request template.
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- If any changes are requested, you can add new commits to your fork and they will be automatically added to the pull request.
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### Continuous integration
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For each push and/or pull request, GitHub Actions will try to build SDL and the test suite on most supported platforms.
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Its behaviour can be influenced slightly by including SDL-specific tags in your commit message:
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- `[sdl-ci-filter GLOB]` limits the platforms for which to run ci.
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- `[sdl-ci-artifacts]` forces SDL artifacts, which can then be downloaded from the summary page.
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- `[sdl-ci-trackmem-symbol-names]` makes sure the final report generated by `--trackmem` contains symbol names.
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## Contributing to the documentation
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### Editing a function documentation
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The wiki documentation for API functions is synchronised from the headers' doxygen comments. As such, all modifications to syntax; function parameters; return value; version; related functions should be done in the header directly.
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### Editing the wiki
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Other changes to the wiki should done directly from https://wiki.libsdl.org/ ... Just click the "edit" link at the bottom of any page!
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