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Godfrey Chan e1373c3e84
DEV: introduce Embroider behind a flag, and start testing in CI (#23005)
Discourse core now builds and runs with Embroider! This commit adds
the Embroider-based build pipeline (`USE_EMBROIDER=1`) and start
testing it on CI.

The new pipeline uses Embroider's compat mode + webpack bundler to
build discourse code, and leave everything else (admin, wizard,
markdown-it, plugins, etc) exactly the same using the existing
Broccoli-based build as external bundles (<script> tags), passed
to the build as `extraPublicTress` (which just means they get
placed in the `/public` folder).

At runtime, these "external" bundles are glued back together with
`loader.js`. Specifically, the external bundles are compiled as
AMD modules (just as they were before) and registered with the
global `loader.js` instance. They expect their `import`s (outside
of whatever is included in the bundle) to be already available in
the `loader.js` runtime registry.

In the classic build, _every_ module gets compiled into AMD and
gets added to the `loader.js` runtime registry. In Embroider,
the goal is to do this as little as possible, to give the bundler
more flexibility to optimize modules, or omit them entirely if it
is confident that the module is unused (i.e. tree-shaking).

Even in the most compatible mode, there are cases where Embroider
is confident enough to omit modules in the runtime `loader.js`
registry (notably, "auto-imported" non-addon NPM packages). So we
have to be mindful of that an manage those dependencies ourselves,
as seen in #22703.

In the longer term, we will look into using modern features (such
as `import()`) to express these inter-dependencies.

This will only be behind a flag for a short period of time while we
perform some final testing. Within the next few weeks, we intend
to enable by default and remove the flag.

---------

Co-authored-by: David Taylor <david@taylorhq.com>
2023-09-07 13:15:43 +01:00
.devcontainer DEV: Replace postCreateCommand with postStartCommand (#16665) 2022-05-05 23:52:35 +02:00
.github DEV: introduce Embroider behind a flag, and start testing in CI (#23005) 2023-09-07 13:15:43 +01:00
.vscode-sample DEV: introduce Ember `<template>` tag support (.gjs) (#22719) 2023-07-20 21:01:12 +01:00
app DEV: introduce Embroider behind a flag, and start testing in CI (#23005) 2023-09-07 13:15:43 +01:00
bin DEV: Auto `yarn install` root package in development (#23276) 2023-08-25 20:53:24 +01:00
config FIX: add missing translation key 2023-09-06 13:40:45 -04:00
db DEV: Change fast typer trust level setting to enum type (#23429) 2023-09-06 17:35:11 +08:00
docs FEATURE: addBeforeAuthCompleteCallback plugin API method (#23441) 2023-09-06 08:48:51 -07:00
documentation DEV: Fix random typos (#20937) 2023-04-03 19:27:32 +02:00
images Replace README logo with PNG (#14044) 2021-08-13 14:23:49 -04:00
lib DEV: Remove accidentally hardcoded Redis port in `docker.rake` (#23455) 2023-09-07 14:22:14 +08:00
log
plugins FIX: Do not consider code-blocks when parsing mentions (#23280) 2023-09-07 16:13:13 +04:00
public DEV: Update diffhtml to 1.0.0-beta.29 again (#22365) 2023-07-03 19:38:43 +03:00
script DEV: introduce Embroider behind a flag, and start testing in CI (#23005) 2023-09-07 13:15:43 +01:00
spec DEV: introduce Embroider behind a flag, and start testing in CI (#23005) 2023-09-07 13:15:43 +01:00
test DEV: Run tests with new chrome headless (#21684) 2023-05-26 11:02:56 +02:00
vendor UX: Add bookmark-delete icon (#23025) 2023-08-09 10:51:09 +02:00
.editorconfig DEV: Update .editorconfig to match new hbs rules (#19816) 2023-01-10 16:21:16 +01:00
.eslintignore DEV: Chat service object initial implementation (#19814) 2023-02-13 13:09:57 +01:00
.eslintrc DEV: Update linting setup (#23434) 2023-09-06 14:23:06 +02:00
.git-blame-ignore-revs DEV: Add recent formatting commits to `.git-blame-ignore-revs` (#19799) 2023-01-09 14:51:48 +00:00
.gitattributes DEV: introduce Ember `<template>` tag support (.gjs) (#22719) 2023-07-20 21:01:12 +01:00
.gitignore DEV: Use esbuild to make DiscourseJsProcessor (#23223) 2023-08-24 16:36:22 +02:00
.jsdoc DEV: Chat service object initial implementation (#19814) 2023-02-13 13:09:57 +01:00
.licensed.yml Build(deps): Bump nio4r from 2.5.8 to 2.5.9 (#20947) 2023-04-04 02:28:29 +02:00
.licensee.json DEV: Update eslint/prettier (#22226) 2023-06-21 20:59:03 +02:00
.npmrc DEV: Prevent npm usage (#13945) 2021-08-04 22:04:58 +02:00
.prettierignore DEV: Chat service object initial implementation (#19814) 2023-02-13 13:09:57 +01:00
.prettierrc DEV: introduce Ember `<template>` tag support (.gjs) (#22719) 2023-07-20 21:01:12 +01:00
.rspec Add RSpec 4 compatibility (#17652) 2022-07-28 10:27:38 +08:00
.rspec_parallel
.rubocop.yml DEV: Enable `unless` cops 2023-02-21 10:30:48 +01:00
.ruby-gemset.sample
.ruby-version.sample DEV: Update recommended Ruby to 3.2.1 (#20444) 2023-02-24 12:51:34 -03:00
.streerc DEV: Apply syntax_tree formatting to `app/*` 2023-01-09 14:14:59 +00:00
.template-lintrc.js DEV: Introduce declarative hide-application-footer helper (#23088) 2023-08-17 12:47:08 +01:00
Brewfile DEV: enable frozen string literal on all files 2019-05-13 09:31:32 +08:00
CONTRIBUTING.md
COPYRIGHT.md DEV: Absorb onebox gem into core (#12979) 2021-05-26 15:11:35 +05:30
Gemfile DEV: Add S3 upload system specs using minio (#22975) 2023-08-23 11:18:33 +10:00
Gemfile.lock Build(deps-dev): Bump minitest from 5.19.0 to 5.20.0 (#23446) 2023-09-07 09:47:52 +08:00
LICENSE.txt DEV: Absorb onebox gem into core (#12979) 2021-05-26 15:11:35 +05:30
README.md FIX: correct link to meta.discourse.org 2023-08-29 13:17:05 +02:00
Rakefile FIX: Do not dump schema during production database migrations (#12785) 2021-04-21 16:26:20 +01:00
config.ru DEV: enable frozen string literal on all files 2019-05-13 09:31:32 +08:00
d
discourse.sublime-project
jsconfig.base.json DEV: introduce Ember `<template>` tag support (.gjs) (#22719) 2023-07-20 21:01:12 +01:00
lefthook.yml DEV: Add syntax_tree check to lefthook (#19877) 2023-01-17 10:16:07 +10:00
package.json DEV: Update linting setup (#23434) 2023-09-06 14:23:06 +02:00
translator.yml FEATURE: Bundle discourse-checklist plugin into core (#22927) 2023-08-02 10:17:24 +01:00
yarn.lock DEV: Update linting setup (#23434) 2023-09-06 14:23:06 +02:00

README.md

Discourse is the online home for your community. We offer a 100% open source community platform to those who want complete control over how and where their site is run.

Our platform has been battle-tested for over a decade and continues to evolve to meet users needs for a powerful community platform. Discourse allows you to create discussion topics and connect using real-time chat, as well as access an ever-growing number of official and community themes. In addition, we offer a wide variety of plugins for features ranging from chatbots powered by Discourse AI to functionalities like SQL analysis using the Data Explorer plugin.

To learn more, visit discourse.org and join our support community at meta.discourse.org.

Screenshots

Discourse 3.1

Boing Boing

Mobile

Browse lots more notable Discourse instances.

Development

To get your environment set up, follow the community setup guide for your operating system.

  1. If you're on macOS, try the macOS development guide.
  2. If you're on Ubuntu, try the Ubuntu development guide.
  3. If you're on Windows, try the Windows 10 development guide.
  4. If you're looking to use a simpler Docker-based install, try the Docker development guide.

If you're familiar with how Rails works and are comfortable setting up your own environment, you can also try out the Discourse Advanced Developer Guide, which is aimed primarily at Ubuntu and macOS environments.

Before you get started, ensure you have the following minimum versions: Ruby 3.2+, PostgreSQL 13, Redis 7. If you're having trouble, please see our TROUBLESHOOTING GUIDE first!

Setting up Discourse

If you want to set up a Discourse forum for production use, see our Discourse Install Guide.

If you're looking for official hosting, see discourse.org/pricing.

Requirements

Discourse is built for the next 10 years of the Internet, so our requirements are high.

Discourse supports the latest, stable releases of all major browsers and platforms:

Browsers Tablets Phones
Apple Safari iPadOS iOS
Google Chrome Android Android
Microsoft Edge
Mozilla Firefox

Additionally, we aim to support Safari on iOS 15.7+.

Built With

  • Ruby on Rails — Our back end API is a Rails app. It responds to requests RESTfully in JSON.
  • Ember.js — Our front end is an Ember.js app that communicates with the Rails API.
  • PostgreSQL — Our main data store is in Postgres.
  • Redis — We use Redis as a cache and for transient data.
  • BrowserStack — We use BrowserStack to test on real devices and browsers.

Plus lots of Ruby Gems, a complete list of which is at /main/Gemfile.

Contributing

Build Status

Discourse is 100% free and open source. We encourage and support an active, healthy community that accepts contributions from the public including you!

Before contributing to Discourse:

  1. Please read the complete mission statements on discourse.org. Yes we actually believe this stuff; you should too.
  2. Read and sign the Electronic Discourse Forums Contribution License Agreement.
  3. Dig into CONTRIBUTING.MD, which covers submitting bugs, requesting new features, preparing your code for a pull request, etc.
  4. Always strive to collaborate with mutual respect.
  5. Not sure what to work on? We've got some ideas.

We look forward to seeing your pull requests!

Security

We take security very seriously at Discourse; all our code is 100% open source and peer reviewed. Please read our security guide for an overview of security measures in Discourse, or if you wish to report a security issue.

The Discourse Team

The original Discourse code contributors can be found in AUTHORS.MD. For a complete list of the many individuals that contributed to the design and implementation of Discourse, please refer to the official Discourse blog and GitHub's list of contributors.

Copyright 2014 - 2023 Civilized Discourse Construction Kit, Inc.

Licensed under the GNU General Public License Version 2.0 (or later); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:

https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Discourse logo and “Discourse Forum” ®, Civilized Discourse Construction Kit, Inc.

Accessibility

To guide our ongoing effort to build accessible software we follow the W3Cs Web Content Accessibility Guidelines (WCAG). If you'd like to report an accessibility issue that makes it difficult for you to use Discourse, email accessibility@discourse.org. For more information visit discourse.org/accessibility.

Dedication

Discourse is built with love, Internet style.