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# Matrix Specification
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This repository contains the Matrix Specification, rendered at [spec.matrix.org](http://spec.matrix.org/).
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Developers looking to use Matrix should join [#matrix-dev:matrix.org](https://matrix.to/#/#matrix-dev:matrix.org)
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on Matrix for help.
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Spec authors and proposal writers are welcome to join [#matrix-spec:matrix.org](https://matrix.to/#/#matrix-spec:matrix.org).
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We welcome contributions! See [CONTRIBUTING.rst](./CONTRIBUTING.rst) for details.
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## Structure
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The Matrix spec is compiled with [Hugo](https://gohugo.io/) (a static site generator) with the following structure:
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* `/assets`: assets that need postprocessing using [Hugo Pipes](https://gohugo.io/hugo-pipes/introduction/).
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For example, Sass files would go here.
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* `/content`: files that will become pages in the site go here. Typically these are Markdown files with some YAML front
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matter indicating, [among other things](https://gohugo.io/content-management/front-matter/), what layout should be
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applied to this page. The organization of files under `/content` determines the organization of pages in the built
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site.
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* `/data`: this can contain TOML, YAML, or JSON files. Files kept here are directly available to template code as
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[data objects](https://gohugo.io/templates/data-templates/), so templates don't need to load them from a file and
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parse them. This is also where our Swagger/OpenAPI definitions and schemas are.
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* `/layouts`: this contains [Hugo templates](https://gohugo.io/templates/). Some templates define the overall layout of
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a page: for example, whether it has header, footer, sidebar, and so on.
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* `/layouts/partials`: these templates can be called from other templates, so they can be used to factor out
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template code that's used in more than one template. An obvious example here is something like a sidebar, where
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several different page layouts might all include the sidebar. But also, partial templates can return values: this
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means they can be used like functions, that can be called by multiple templates to do some common processing.
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* `/layouts/shortcodes`: these templates can be called directly from files in `/content`.
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* `/static`: static files which don't need preprocessing. JS or CSS files could live here.
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* `/themes`: you can use just Hugo or use it with a theme. Themes primarily provide additional templates, which are
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supplied in a `/themes/$theme_name/layouts` directory. You can use a theme but customise it by providing your own
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versions of any of the theme layouts in the base `/layouts` directory. That is, if a theme provides
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`/themes/$theme_name/layouts/sidebar.html` and you provide `/layouts/sidebar.html`, then your version of the
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template will be used.
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It also has the following top-level file:
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* `config.toml`: site-wide configuration settings. Some of these are built-in and you can add your own. Config settings
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defined here are available in templates. All these directories above are configurable via `config.toml` settings.
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Additionally, the following directories may be of interest:
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* `/attic`: Here contains historical sections of specification and legacy drafts for the specification.
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* `/changelogs`: Various bits of changelog for the specification areas.
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* `/data-definitions`: Bits of structured data consumable by Matrix implementations.
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* `/meta`: Documentation relating to the spec's processes that are otherwise untracked (release instructions, etc).
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* `/scripts`: Various scripts for generating the spec and validating its contents.
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* `/proposals`: Matrix Spec Change (MSC) proposals. See <https://spec.matrix.org/unstable/proposals/>.
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## Authoring changes to the spec
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Please read [CONTRIBUTING.rst](./CONTRIBUTING.rst) before authoring a change to the spec. Note that spec authoring takes
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place after an MSC has been accepted, not as part of a proposal itself.
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1. Install the extended version (often the OS default) of Hugo:
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<https://gohugo.io/getting-started/installing>. Note that at least Hugo
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v0.74 is required.
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Alternatively, use the Docker image at
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https://hub.docker.com/r/klakegg/hugo/. (The "extended edition" is required
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to process the SCSS.)
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2. Run `git submodule update --init --recursive` for good measure.
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3. Run `npm i` to install the dependencies. Note that this will require NodeJS to be installed.
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4. Run `npm run get-proposals` to seed proposal data. This is merely for populating the content of the "Spec Change Proposals"
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page and is not required.
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5. Run `hugo serve` (or `docker run --rm -it -v $(pwd):/src -p 1313:1313
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klakegg/hugo:ext serve`) to run a local webserver which builds whenever a file
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change is detected. If watching doesn't appear to be working for you, try
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adding `--disableFastRender` to the commandline.
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6. Edit the specification 🙂
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We use a highly customized [Docsy](https://www.docsy.dev/) theme for our generated site, which uses Bootstrap and Font
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Awesome. If you're looking at making design-related changes to the spec site, please coordinate with us in
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[#matrix-docs:matrix.org](https://matrix.to/#/#matrix-docs:matrix.org) before opening a PR.
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## Building the specification
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If for some reason you're not a CI/CD system and want to render a static version of the spec for yourself, follow the above
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steps for authoring changes to the specification and instead of `hugo serve` run `hugo -d "spec"` - this will generate the
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spec to `/spec`. If you'd like to serve the spec off a path instead of a domain root (eg: `/unstable`), add `--baseURL "/unstable"`
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to the `hugo -d "spec"` command.
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For building the swagger definitions, create a python3 virtualenv and activate it. Then run `pip install -r ./scripts/requirements.txt`
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and finally `python ./scripts/dump-swagger.py` to generate it to `./scripts/swagger/api-docs.json`. To make use of the generated file,
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there are a number of options:
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* It can be uploaded from your filesystem to an online editor/viewer such as [on the swagger website](http://editor.swagger.io/).
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* You can run a local HTTP server by running `./scripts/swagger-http-server.py`, and then view the documentation via an
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online viewer; for example, at <http://petstore.swagger.io/?url=http://localhost:8000/api-docs.json>.
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* You can host the swagger UI yourself. See <https://github.com/swagger-api/swagger-ui#how-to-run> for advice on how to
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do so.
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## Issue tracking
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Specification issues are tracked on github at <https://github.com/matrix-org/matrix-doc/issues>.
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See [meta/github-labels.rst](./meta/github-labels.rst) for information on what the labels mean.
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