- Fix router import path in main.js - Handle Django REST Framework pagination format in API calls - Add getTemplates function to project API - Restart frontend development server
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Contributing to Fabric
First of all thank you for your interest in contributing. 🙏
This guide covers all you need to know from the start, for a first time contributor, advancing to the more advanced topics as you continue reading.
What is a contribution, who is a contributor
A Contributor is anyone who simply adds to the project, without any formal membership. Contributions do not need to be code. Contributions can be code, docs, issue triaging, discussions, ideas.
If you are starting your coding journey, contributions are a good way to learn skills, learn development workflows, meet other developers.
If you find yourself contributing often you may be interested in the Contributor ladder
Asking Questions
The place for questions is NOT the Issue Tracker Please refer to available resources (read below) and refrain from opening an issue in such a case.
To find an answer, first search the repository. It contains a lot of useful threads.
If you find an answer in the issue tracker or in the discussions, but not in the docs, you may consider improving the docs. Docs contributions are really appreciated above anything else
Demos and examples can be found on fabricjs.com, jsfiddle, codepen.io and more.
Issue Tracker
- Before You Begin 🎬
- Fill out the bug report with care, it is there for a reason.
- The Title must be informative, short and 🧿 to the point.
- Description
- Describe the issue making sure you are very clear.
- Add logs, screenshots or videos if that makes sense.
- Make an effort explaining yourself. Maintainers are busy, don't waste on action on your issue for just having them ask for more details. Put them in condition to answer immediately.
- Re read your description multiple times before submitting.
- Test Case
- Create a minimal and immediate test case, reproducing the bug.
- Add relevant explanations.
- It should be extremely easy for someone to understand your bug and fast to reproduce it. Don't leave it to us to do your part.
- Bug templates can be found within a bug report.
- Specify which version of Fabric.js you are using.
- Verify your bug also on the latest version before submitting it.
These are minimal requirements. Without them issues will be closed.
If it's not a bug OR if you're unsure, start a discussion.
Fixing typos is appreciated
Typos happens.
Though it may seem insignificant, typo fixes are appreciated!
It's a good and simple way to start contributing.
Improving Docs
Improving DOCS is SUPER important for everyone.
Even if it's a small fix it is valuable don't hesitate!
We have a website that is easy to contribute to.
[Adding demos](#Adding Demos) is also a great contribution.
Helping Out with other devs issues
Answering questions and addressing issues, as well as fixing and adding types (see Pull Requests), are great ways to start contributing to fabric.
Fixing Bugs
- Open an issue, if there isn't any, addressing the bug.
- If the issue is labeled as 'bug' then it needs a fix. Do not open a PR before that moment.
- Once the issue is confirmed as a bug you can fix it, mention in the issue you are working to fix it and check Developing.
- Add tests.
- Open PR
General Guidelines
- Be patient
Sometimes it takes time to get back to you. Someone eventually will. Having a small, concise and super clear change will make maintainers more prone to handle it quickly. - Code Style
Fabric usesprettierto format files andeslintfor linting (npm run lint -- --fix).
To enjoy a seamless dev experience add thePrettier - Code formatterextension via the extensions toolbar in VSCode. If that doesn't work, once the PR is ready runnpm run prettier:writeand commit the changes. Do not reorder imports. Irrelevant changes in a PR that are not created by prettier aren't needed nor welcome. - Tests
PRs must be backed with relevant tests, follow TESTING. If you never wrote a test or you find our tests unclear to extend, just ask for help. Aim to cover 100% of the changes. - Docs
Update guides if necessary.
Add relevant comments to your code using JSDoc3, JSDoc reference supported by TS.
The generated documentation can be found at fabricjs.com, see DOCS. - Changelog
Add a concise listing to the CHANGELOG describing what has changed or let github actions add the PR title for you. An action will add a changelog line with the title of the PR. Check the changelog file to understand the format. - One bug one PR, one feature one PR
Create a new branch for every pull request.
Don't create a PR from your fork main branch.
If you want to do more than one thing, create multiple pull requests. If your bug fix or feature requires a refactor, don't refactor. Commit the bugfix or the feature with the current code structure, let it sink, give some time to surface issues with the change, then when the bug or the feature seem solid, a refactor or code improvement can be tried - And there you go!
If you still have questions we're always happy to help.
After you open a PR a maintainer will review it. It is more than likely you will be requested to change stuff and refine your work before it is merged into the repo.
Testing
We use Vitest and Playwright.
| Suite | unit (node) | e2e (browser) |
|---|---|---|
| Framework | vitest |
playwright |
| Setup | npm run build -- -f -w |
|
Running Tests<test cmd> -- [filter] [watch] It is advised to use filters to save time |
npm run test:vitest -- [filters] [-w] |
npm run test:e2e -- [filters] [--ui] |
| Writing Tests | Add/update src/*.(spec|test).ts files |
- Update tests in e2e/tests- Create a new test based on e2e/template |
| Test Gen | npm start vanilla |
|
| Test Spec | - index.ts: built and loaded into the web app- index.spec.ts: test spec |
|
| Outputs | Snapshots next to the test file | - Snapshots next to the test file - e2e/test-report- e2e/test-results |
Developing
Getting Started
- You need to be comfortable with git
- Fork and clone the repository
- Install dependencies
npm i --include=dev
Starting an App
npm start <template>
npm start -- --help
I use npm start vanilla for a simple html page with a fabric canvas where i can test some changes.
You can deploy an app to codesandbox via the cli or build an app at a path of your choosing:
npm run sandbox deploy <path/to/app>
npm run sandbox build <template> <path/to/app>
npm run sandbox -- --help
Refer to .codesandbox/README.md for more information.
Online
You can actively develop fabric online using Github Codespaces, Gitpod or CodeSandbox:
- After the Github Codespace has started run
npm start <template>to start a prototyping app. - Gitpod will start the prototyping apps and expose them as endpoints available on forwarded ports.
A service is available on port ...popups will show up. - Codesandbox: available soon.
Symlinking
Establish symlinking to work with a local version on separate projects.
- From
fabric.jsfolder runnpm linkORyarn link. - From the project's folder run
npm link fabricORyarn link fabric. - Consider flagging
--saveto avoid confusion regarding what version of fabric is being used by the project.
See npm link OR yarn link.
Don't forget to unlink the package once you're done.