Contributing guide

Thank you for considering contributing to Fedify! This document explains how to contribute to the project.

Bug reports

If you find a bug in Fedify, first of all, please search the GitHub issue tracker to see if the bug has already been reported. If it hasn't been reported yet, please open a new issue. When you open an issue, please provide the following information:

• The version of Fedify you are using.
• The version of Deno you are using.
• The version of the operating system you are using.
• The steps to reproduce the bug.
• The expected behavior.
• The actual behavior.

Feature requests

If you have a feature request for Fedify, please search the GitHub issue tracker to see if the feature has already been requested. If it hasn't been requested yet, please open a new issue. When you open an issue, please provide the following information:

• The use case of the feature.
• The expected behavior.
• The reason why you think the feature should be implemented in Fedify, instead of a third-party library or your own project.

Pull requests

License

Fedify is licensed under the MIT License. By opening a pull request, you agree to license your contribution under the MIT License. If you cannot agree to this license, please do not open a pull request.

Building

To build the project, see the Build section.

Coding conventions

Please run the following commands before opening a pull request:

cd src/
deno task check

Docs

If you want to fix a typo or improve the documentation, you can open a pull request without opening an issue.

For Markdown, we have the following conventions:

• 80 characters at most per line, except for code blocks and URLs.
• Prefer reference links over inline links.
• Prefer setext headings over ATX headings.
• Two new lines before opening an H1/H2 heading.
• One space before and two spaces after a bullet.
• Wrap file paths in asterisks.
• Wrap code in backticks.

In order to build the docs, see the Building the docs section.

Bug fix

If you want to fix a bug in Fedify, please search the GitHub issue tracker to see if the bug has already been reported. If it hasn't been reported yet, please open a new issue to discuss the bug.

When you open a pull request, please provide the issue number that the pull request is related to.

A patch set should include the following:

• The regression test that demonstrates the bug. It should fail without the patch and pass with the patch.
• The fix for the bug.
• The CHANGES.md entry. The entry should include the issue number, the pull request number, and your name (unless you want to be anonymous).

Bug fix pull requests should target the most oldest maintenance branch that the bug affects. If you are not sure which branch to target, please ask in the issue tracker.

Feature implementation

If you want to contribute to Fedify, please open a new issue in the GitHub issue tracker to discuss the change you want to make. If the change is accepted, you can start working on the change. When you open a pull request, please provide the following information:

• The issue number that the pull request is related to.
• The description of the change.
• The reason why the change is needed.
• The steps to test the change.

A patch set should include the following:

• The unit tests that demonstrate the feature.
• The implementation of the feature.
• If any API change was made, the documentation update for the API.
• Check if examples work with the change, and update the examples if needed.
• The CHANGES.md entry. The entry should include the issue number, the pull request number, and your name (unless you want to be anonymous).

Feature pull requests should target the main branch.

Build

Directories

The repository consists of the following directories:

• cli/: The Fedify CLI. The CLI is built with Deno.
• docs/: The Fedify docs. The docs are built with Node.js and VitePress.
• examples/: The example projects. Some examples are built with Deno, and some are built with Node.js.
• src/: The Fedify library. The library is built with Deno, and tested with Deno, Node.js, and Bun.
  • codegen/: The code generation scripts.

Development environment

Fedify uses Deno as the main development environment. Therefore, you need to install Deno to hack on Fedify.

The recommended editor for Fedify is Visual Studio Code with the Deno extension installed. Or you can use any editor that supports Deno; see the Set Up Your Environment section in the Deno manual.

CAUTION

Fedify heavily depends on code generation, so you need to run deno task codegen before coding or testing.

Assuming you have Deno and Visual Studio Code installed, you can open the repository in Visual Studio Code and get ready to hack on Fedify by running the following commands at the root of the repository:

pushd src
deno task codegen
popd
code .

Note that the deno task codegen command is required to run only once at very first time, or when you update the code generation scripts. Otherwise, you can skip the command and just run:

code .

Immediately after running the code . command, Visual Studio Code will open the repository, and you can start hacking on Fedify. If you encounter the following message:

Do you want to install recommended 'Deno' extension from denoland for this repository?

Please click the Install button to install the Deno extension.

Running the Fedify CLI

If you want to test your changes in the Fedify CLI, you can run deno task run command at the cli/ directory. For example, if you want to test the fedify lookup subcommand, you can run the following command:

pushd cli/
deno task run lookup @fedify@hollo.social
popd

TIP

Unlike the Fedify library, the Fedify CLI does not have to be tested with Node.js and Bun; you can test the CLI with Deno only.

Running the tests

If you want to test your changes in the Fedify library, you can run deno task test command at the src/ directory:

pushd src/
deno task test
popd

If the tests pass, you should run deno task test-all command to test the library with Deno, Node.js, and Bun:

pushd src/
deno task test-all
popd

Of course, Node.js and Bun should be installed on your system to run the tests with Node.js and Bun.

Building the docs

If you want to change the Fedify docs, you would like to preview the changes in the browser. To do that, you need to install Node.js and pnpm first. Then you can run the following commands at the docs/ directory:

pnpm install
pnpm dev

Once the development server is running, you can open your browser and navigate to http://localhost:5173/ to view the docs.