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CONTRIBUTING

So you want to help out? Great! There's a number of ways you can get involved.

Table of Contents

Other repositories where issues could be filed

There's also other Video.js projects where you can help. (check the video.js org for an up-to-date list of projects)

Filing issues

GitHub Issues are used for all discussions around the codebase, including bugs, features, and other enhancements.

When filling out an issue, make sure to fill out the questions in the

Reporting a Bug

A bug is a demonstrable problem that is caused by the code in the repository. Good bug reports are extremely helpful. Thank You!

Guidelines for bug reports:

  1. If your issue is with a particular video.js plugin or subproject, please open an issue against that project. See list of some potential other projects above
  2. Use the GitHub issue search — check if the issue has already been reported.
  3. Check if the issue has already been fixed — try to reproduce it using the latest main branch in the repository.
  4. Isolate the problem — create a reduced test case with a live example. You can possibly use this codepen template as a starting point -- don't forget to update it to the videojs version you use.
  5. Answer all questions in the issue template. The questions in the issue template are designed to try and provide the maintainers with as much information possible to minimize back-and-forth to get the issue resolved.

A good bug report should be as detailed as possible, so that others won't have to follow up for the essential details.

File a bug report

Requesting a Feature

  1. Check the plugin list for any plugins that may already support the feature.
  2. Search the issues for any previous requests for the same feature, and give a thumbs up or +1 on existing requests.
  3. If no previous requests exist, create a new issue. Please be as clear as possible about why the feature is needed and the intended use case.
  4. Once again, be as details as possible and follow the issue template

Request a feature

Labels

There are a few labels that might be added to your issue or PR by a maintainer. Here's a quick rundown of what they mean:

Label Issue or PR Description
confirmed Issue and PR Issue: marks as reproducible by a maintainer. PR: marked by a maintainer as ready to be merged
5.x PR Marks as a change to the 5.x branch only
bug Issue Marks as a confirmed bug by a maintainer
good first issue Issue Marked as a good bug or enhancement for first time contributors to Video.js
first-timers-only Issue Marked as a good bug or enhancement to be done by a newcomer to open source
minor, patch, major PR Marks PR with the expected semver classification of the change
needs: more info Issue Marked by a maintainer as needing more information from the issue reporter. Please update your issue with more information to help us reproduce the bug.
needs: reduced test case Issue Marked by a maintainer as needing a reduced test case from the issue reporter. Please create a test page that we can inspect to help us identify a bug.

Contributing code

To contribute code you'll need to be able to build a copy of Video.js and run tests locally. There are a few requirements before getting started.

  • Node.js Video.js uses Node for build and test automation. Node is available for Windows, Mac OS X, Linux, and SunOS, as well as source code if that doesn't scare you. Download and install Node.js

Building video.js locally

Forking and cloning the repository

First, fork the video.js git repository. At the top of every GitHub page, there is a Fork button. Click it, and the forking process will copy Video.js into your own GitHub account.

Clone your fork of the repo into your code directory

git clone https://github.com/<your-username>/video.js.git

Navigate to the newly cloned directory

cd video.js

Assign the original repo to a remote called "upstream"

git remote add upstream https://github.com/videojs/video.js.git

In the future, if you want to pull in updates to video.js that happened after you cloned the main repo, you can run:

git remote update
git checkout main
git pull upstream main

Installing local dependencies

Install the required node.js modules using node package manager

npm install

A note to Windows developers: If you run npm commands, and you find that your command prompt colors have suddenly reversed, you can configure npm to set color to false to prevent this from happening. npm config set color false Note that this change takes effect when a new command prompt window is opened; the current window will not be affected.

Running tests

Tests can be run either from the shell or from the browser.

To run the tests from the shell, just run

npm test

This will build video.js locally and run the test suite using Karma, which runs our tests in actual browsers.

To run tests from the browser, first start a local server with npm start (this also watches for changes and rebuilds video.js and the test files as necessary). Then navigate to http://localhost:9999/test, and you'll see a page that displays the results of all the tests. To rerun the tests after making changes, just refresh the page. To run an individual test, click the "Rerun" link next to the test's title.

Building videojs

To build video.js, simply run

npm run build

This outputs an es5/ and dist/ folder. The es5/ folder is used by bundling tools like browserify and webpack to package video.js into projects. The dist/ folder has pre-compiled versions of video.js, including a minified version and the CSS file. This file can be included in page via a <script></script> tag.

Testing Locally

Besides running automated tests, you often want to run video.js manually and play around with things as you're developing. A few things are provided to make it easier.

Sandbox test directory

There's a sandbox directory where you can add any file and it won't get tracked in git. To start you can copy the example index file.

cp sandbox/index.html.example sandbox/index.html

See the following section for how to open the page in a browser.

Running a local web server

This ties in nicely with the sandbox directory. You can always open the sandbox/index.html file directly but in some cases it may not work properly.

To get around this you must use a local web server.

To run the local webserver:

npm start
open http://localhost:9999/sandbox/index.html

The latter does some extra work which will be described in the next section.

Watching source and test changes

As you're developing, you want the build to re-run and update itself, and potentially re-run the tests. In addition, you want to launch a local web-server that you can open the sandbox directory in. To do so, you just need to run

npm start

This sets up the local webserver using connect and then watches source files, test files, and CSS files for you and rebuilds things as they happen.

Making Changes

Step 1: Verify

Whether you're adding something new, making something better, or fixing a bug, you'll first want to search the GitHub issues and plugins list to make sure you're aware of any previous discussion or work. If an unclaimed issue exists, claim it via a comment. If no issue exists for your change, submit one, following the issue filing guidelines.

Step 2: Update remote

Before starting work, you want to update your local repository to have all the latest changes.

git remote update
git checkout main
git rebase upstream/main

Step 3: Branch

You want to do your work in a separate branch.

git checkout -b my-branch

Step 4: Commit

Commit changes as you go. Write thorough descriptions of your changes in your commit messages. For more information see our conventional changelog guidelines for video.js Follow these guidelines:

  1. The first line should be less than 50 characters and contain a short description of the commit.
  2. The body should contain a more detailed description. It can contain things like reasoning for the change and specifics of what changed.
  3. A footer can be added if this fixes a particular issue on GitHub.
git add src/js/player.js
git commit

An example of the first line of a commit message: fix: changed the footer to correctly display foo

In the body of the commit message, we can talk about why we made the change. What the change entails. Any testing considerations or things to think about when looking at the commit. For Example:

fix: one line commit explanation

In the body of the commit message, we can talk about why we made the change. What the change entails.

Any testing considerations or things to think about when looking at the commit.

Fixes #123. The footer can contain Fixes messages.

Make sure that git knows your name and email:

git config --global user.name "Random User"
git config --global user.email "[email protected]"

Step 5: Test

Any code change should come with corresponding test changes. Especially bug fixes. Tests attached to bug fixes should fail before the change and succeed with it.

npm test

See Running tests for more information.

Step 6: Push

git push origin my-branch

Then go to the repo page and click the "Pull Request" button and fill out the pull request template

Code Style Guide

Our javascript is linted using videojs-standard.

Developer's Certificate of Origin 1.1

By making a contribution to this project, I certify that:

  • (a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; or

  • (b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or

  • (c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it.

  • (d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved.

Doc Credit

This doc was inspired by some great contribution guide examples including contribute.md template, grunt, html5 boilerplate, jquery, and node.js.