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  • Introduction
  • Introduction
    • Quick start
    • Aurelia for new developers
    • Hello world
      • Creating your first app
      • Your first component - part 1: the view model
      • Your first component - part 2: the view
      • Running our app
      • Next steps
  • Templates
    • Template Syntax
      • Attribute binding
      • Event binding
      • Text interpolation
      • Template promises
      • Template references
      • Template variables
      • Globals
    • Custom attributes
    • Value converters (pipes)
    • Binding behaviors
    • Form Inputs
    • CSS classes and styling
    • Conditional Rendering
    • List Rendering
    • Lambda Expressions
    • Local templates (inline templates)
    • SVG
  • Components
    • Component basics
    • Component lifecycles
    • Bindable properties
    • Styling components
    • Slotted content
    • Scope and context
    • CustomElement API
    • Template compilation
      • processContent
      • Extending templating syntax
      • Modifying template parsing with AttributePattern
      • Extending binding language
      • Using the template compiler
      • Attribute mapping
  • Getting to know Aurelia
    • Routing
      • @aurelia/router
        • Getting Started
        • Creating Routes
        • Routing Lifecycle
        • Viewports
        • Navigating
        • Route hooks
        • Router animation
        • Route Events
        • Router Tutorial
        • Router Recipes
      • @aurelia/router-lite
        • Getting started
        • Router configuration
        • Configuring routes
        • Viewports
        • Navigating
        • Lifecycle hooks
        • Router hooks
        • Router events
        • Navigation model
        • Transition plan
    • App configuration and startup
    • Enhance
    • Template controllers
    • Understanding synchronous binding
    • Dynamic composition
    • Portalling elements
    • Observation
      • Observing property changes with @observable
      • Effect observation
      • HTML observation
      • Using observerLocator
    • Watching data
    • Dependency injection (DI)
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    • Event Aggregator
  • Developer Guides
    • Animation
    • Testing
      • Overview
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      • Working with the fluent API
      • Stubs, mocks & spies
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    • Web Components
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    • Errors
      • 0001 to 0023
      • 0088 to 0723
      • 0901 to 0908
    • Bundlers
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      • Apollo GraphQL integration
      • Auth0 integration
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      • Cordova/Phonegap integration
      • CSS-in-JS with Emotion
      • DOM style injection
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      • Markdown integration
      • Multi root
      • Progress Web Apps (PWA's)
      • Securing an app
      • SignalR integration
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    • Playground
      • Binding & Templating
      • Custom Attributes
        • Binding to Element Size
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        • Microsoft FAST
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    • Migrating to Aurelia 2
      • For plugin authors
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    • Cheat Sheet
  • Aurelia Packages
    • Validation
      • Validation Tutorial
      • Plugin Configuration
      • Defining & Customizing Rules
      • Architecture
      • Tagging Rules
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      • Validation Controller
      • Validate Binding Behavior
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      • I18n Internationalization
      • Migration Guide & Breaking Changes
    • i18n Internationalization
    • Fetch Client
      • Overview
      • Setup and Configuration
      • Response types
      • Working with forms
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      • Advanced
    • Event Aggregator
    • State
    • Store
      • Configuration and Setup
      • Middleware
    • Dialog
  • Tutorials
    • Building a ChatGPT inspired app
    • Building a realtime cryptocurrency price tracker
    • Building a todo application
    • Building a weather application
    • Building a widget-based dashboard
    • React inside Aurelia
    • Svelte inside Aurelia
    • Synthetic view
    • Vue inside Aurelia
  • Community Contribution
    • Joining the community
    • Code of conduct
    • Contributor guide
    • Building and testing aurelia
    • Writing documentation
    • Translating documentation
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On this page
  • Got a Question or Problem?
  • Found an Issue?
  • Want a Feature?
  • Developing
  • Submission Guidelines
  • Submitting an Issue
  • Submitting a Pull Request
  • After Your Pull Request is Merged
  • Coding Rules
  • Git Commit Guidelines
  • Commit Message Format
  • Joining the Core Team

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  1. Community Contribution

Contributor guide

Learn about our coding rules and contributing process.

PreviousCode of conductNextBuilding and testing aurelia

Last updated 2 years ago

Was this helpful?

We'd love for you to contribute to Aurelia's source code and help make our projects even better than they are today! To help you out, we've put together some guidelines we all like to follow.

Here's what you'll learn...

  • How to handle bugs, small changes, and major feature work.

  • Guidelines for submitting issues and pull requests.

  • Git/GitHub practices for contributing to our project.

  • Coding rules.

  • Legal

Got a Question or Problem?

If you have questions about how to use Aurelia, please direct these to , , or .

Found an Issue?

If you find a bug in the source code or a mistake in the documentation, you can help us by submitting an issue. Or, even better, you can submit a Pull Request with a fix.

Please see the Submission Guidelines below.

Want a Feature?

You can request a new feature by submitting an issue. If you would like to implement a new feature then consider what kind of change it is.

  • Major Changes that you wish to contribute to the project should be discussed first via an RFC so that we can better coordinate our efforts, prevent duplication of work, and help you to craft the change so that it is successfully accepted into the project.

Developing

Submission Guidelines

Submitting an Issue

Before you submit your issue, search the archive. It may be that it was already addressed. If your issue appears to be a bug and hasn't been reported, open a new issue. Help us to maximize the effort we can spend fixing issues and adding new features by not reporting duplicate issues. Please provide all the information requested in the issue template. This will increase the chances of your issue being dealt with quickly.

Submitting a Pull Request

Before you submit your pull request consider the following guidelines:

  • Search the appropriate GitHub Repository for an open or closed Pull Request that relates to your submission. You don't want to duplicate effort.

  • Make your changes in a new git branch:

    git checkout -b my-fix-branch master
  • Create your patch, including appropriate test cases.

  • Follow our code rules (see below).

  • Run the full test suite and ensure that all tests pass.

  • Commit your changes using a descriptive commit message that follows our commit message conventions (see below). Adherence to the commit message conventions is required because release notes are automatically generated from these messages.

    git commit -a

    Note: The optional commit -a command line option will automatically "add" and "rm" edited files.

  • Build your changes locally and ensure all the tests in __tests__ pass:

    npm run test-chrome
  • Push your branch to GitHub:

    git push origin my-fix-branch
  • In GitHub, send a Pull Request to the master branch.

  • If we suggest changes then:

    • Make the required updates.

    • Re-run the test suite to ensure tests are still passing.

    • Rebase your branch and force push to your GitHub Repository (this will update your Pull Request):

      git rebase master -i
      git push -f

Important

The first time you submit a PR to a project under the Aurelia organization on GitHub, you will be prompted to sign the Contributor License Agreement (CLA). We cannot accept the PR without this (see below for details).

After Your Pull Request is Merged

After your pull request is merged, you can safely delete your branch and pull the changes from the main (upstream) repository:

  • Delete the remote branch on GitHub either through the GitHub web UI or your local shell as follows:

    git push origin --delete my-fix-branch
  • Check out the master branch:

    git checkout master -f
  • Delete the local branch:

    git branch -D my-fix-branch
  • Update your master with the latest upstream version:

    git pull --ff upstream master

Coding Rules

To ensure consistency throughout the source code, keep these rules in mind as you are working:

  • All features or bug fixes must be tested by one or more specs.

  • All public API methods must be documented. To see how we document our APIs, please check out the existing docs.

  • Instead of complex inheritance hierarchies, we prefer simple objects.

  • Ensure that your code passes the lint check.

Git Commit Guidelines

We have very precise rules over how our git commit messages can be formatted. This leads to more readable messages that are easy to follow when looking through the project history. But also, we use the git commit messages to generate the changelog.

Commit Message Format

Each commit message consists of a header, a body and a footer. The header has a special format that includes a type, a scope, and a subject:

<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>
<footer>

The subject line of the commit message cannot be longer than 100 characters. This allows the message to be easier to read on GitHub as well as in various git tools.

Type

Please use one of the following:

  • feat: A new feature

  • fix: A bug fix

  • docs: Documentation only changes

  • style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc.)

  • refactor: A code change that neither fixes a bug or adds a feature

  • perf: A code change that improves performance

  • test: Adding missing tests

  • chore: Changes to the build process or auxiliary tools and libraries such as documentation generation

Scope

The scope could be anything specifying the location of the commit change. For example template-compiler or reporter.

Subject

The subject contains a succinct description of the change:

  • Use the imperative, present tense: "change" not "changed" nor "changes".

  • Don't capitalize the first letter.

  • Do not add a dot (.) at the end.

Body

The body should include the motivation for the change and contrast this with previous behavior.

Footer

The footer should contain any information about Breaking Changes and is also the place to reference GitHub issues that this commit Closes.

Joining the Core Team

Small Changes can be crafted and submitted to as a Pull Request.

Check out to get started with setting up the repo, building, testing, and debugging.

is made up of select community members who are committed to maintaining and evolving Aurelia over the long-term. The team may grow or shrink depending on project needs, member availability, and other factors. Core team members are typically long-time Aurelia community members who have shown enthusiasm while taking the initiative to improve Aurelia in various ways, including fixing bugs, implementing features, writing documentation/books/blogs, triaging issues, and more. Each member has shown a consistency of quality and cadence in their contributions. If you are interested in joining the core team, please reach out to aurelia-team@bluespire.com. We'd be happy to discuss opportunities with you.

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