CONTRIBUTING.md

How to Contribute

Firstly, it's important to understand that contributing to an open-source project is not just about submitting code to fix bugs or add features. There are many ways to contribute to an open-source project, including but not limited to:

1. Raising requirements: Submitting detailed requirements based on your business needs when the open-source project cannot meet them.
2. Documentation: Submitting PRs to fix small issues in the documentation or submitting issues to report problems and suggest improvements.
3. Discussion: Initiating discussions on your ideas, needs, and suggestions.
4. Answering questions: Helping to reply to and handle issues and discussions based on your own experience.
5. Bugfix: If you encounter problems during use and can locate the problem code and are willing to try to accept the challenge, you can submit a PR to solve the problem.
6. Feature submission: Based on discussions in issues and discussions, submit a PR after implementation for the benefit of all open-source users.
7. Ecosystem operation: Adding ecosystem content to an open-source project through your abilities, such as blogs, case studies, solutions, and extensions.

If you have any questions, feel free to submit an issue (https://github.com/antvis/g2/issues) or directly modify and submit a PR (https://github.com/antvis/g2/pulls). The following mainly introduces the operational guidelines for several types of open-source contributions.

How to run the website code locally?

If you want to help optimize the documentation and submit chart examples, you need to start the website debugging and validation. Here's how to start the website.

• Clone the code to your local computer:

$ git clone git@github.com:antvis/G2.git

• Install project dependencies:

$ cd G2

$ npm install

You can also choose other package management tools to install according to your own habits.

Install website dependencies and start:

$ cd site

$ npm install

$ npm start

Then you can see the URL address to access the local website in the command console.

How to debug project code?

When learning the project code or solving bugs and submitting features for the project, debugging and running the code is necessary. Here is how to start and debug the project.

• Clone the project and install dependencies:

$ git clone git@github.com:antvis/G2.git

$ cd G2

$ npm install

• Start a local debugging case:

G2 uses Vite to build the preview environment. Going through npm run dev can open the preview page.

$ npm run dev

The preview page can preview all chart cases under __tests__/plots and switch through the drop-down box according to different focus points. Chart cases are divided into the following categories based on different focus points:

• animation - Animation-related cases, placed under __tests__/plots/animation.
• api - Chart API-related cases, placed under __tests__/plots/api.
• interaction - Interaction-related cases, placed under __tests__/plots/interaction.
• static - Static drawing-related cases, placed under __tests__/plots/static.
• tooltip - Tooltip-related cases, placed under __tests__/plots/tooltip.

When starting development, you need to determine which category the feature to be implemented or the BUG to be fixed belongs to, then create a new file under the corresponding category folder, input the corresponding code, and export it in the corresponding index.js file. This way, you can preview it in the preview environment.

• Run CI locally:

$ npm run test

The above command can run CI locally to ensure that after modifying the code, there are no new issues.

What are the requirements for contributing PR?

In order to ensure the long-term code quality and stability of the project, a PR needs to meet the following requirements at least:

• Commit Message format
• Automation testing requirements
• Pull Request guidelines

Commit Message format

Follow the angular format for commit messages. This makes the commit history more clear and enables the generation of changelogs. The format should be as follows:

type(scope): your commit message subject

type: The type of the commit, including the following categories:

• feat: a new feature
• fix: a bug fix
• docs: changes to documentation
• style: code style changes that do not affect the logic
• refactor: code refactoring that does not affect the existing features
• perf: performance improvements
• test: adding or modifying tests
• chore: changes to tools or utilities (including but not limited to documentation, code generation, etc.)
• deps: dependency upgrades (2) scope The scope of the modified files. (3) subject The specific content of the modification. Example
• fix(compile): couple of unit tests for IE9

scope: the scope of the commit.

subject: the subject of the commit.

Automation testing requirements

G2 has two parts of automated testing:

• Unit tests: tests for data modules or functions, located in __tests__/unit/.
• Integration tests: tests the rendering results of the entire visualization chart by comparing screenshots, located in __tests__/integration/.

For all changes, unit tests or integration tests should be submitted to cover the modified parts. Additionally, run npm run test locally to ensure the CI runs successfully.

Pull Request guidelines

Since no one can guarantee how long it will be until they remember, please provide the following information when submitting a Pull Request for convenient historical reference:

• Requirement (usually associated with an issue or comment)
• Reason for the upgrade (different from the issue, briefly describe why it needs to be addressed)
• Framework testing points (can be associated with test files, no need for detailed description, just key points)
• Concerns (for users, optional, usually for incompatible updates, additional prompts are required)

For any other questions, please submit a discussion for help. We look forward to your contribution to AntV.