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mkdocs-material/docs/extensions/metadata.md
2020-03-09 23:12:10 +01:00

135 lines
3.1 KiB
Markdown

---
hero: Set heroes with metadata
path: tree/master/docs/extensions
source: metadata.md
---
# Metadata
[Metadata][1] is an extension included in the standard Markdown library that
makes it possible to control certain properties in a page-specific context,
e.g. the page title or description.
[1]: https://python-markdown.github.io/extensions/meta_data/
## Configuration
Add the following lines to `mkdocs.yml`:
``` yaml
markdown_extensions:
- meta
```
## Usage
Metadata is written as a series of key-value pairs at the beginning of the
Markdown document, delimited by a blank line which ends the metadata context.
Naturally, the metadata is stripped from the document before rendering the
actual page content and made available to the theme.
Example:
``` markdown
---
title: Lorem ipsum dolor sit amet
description: Nullam urna elit, malesuada eget finibus ut, ac tortor.
path: path/to/file
source: file.js
---
# Headline
...
```
See the next section which covers the metadata that is supported by Material.
### Setting a hero
Material exposes a simple text-only page-local hero via Metadata, as you can
see on the current page when you scroll to the top. It's as simple as:
``` markdown
hero: Set heroes with metadata
```
### Linking sources
When a document is related to a specific source file and the `repo_url` is
defined inside the project's `mkdocs.yml`, the file can be linked using the
`source` key:
``` markdown
source: file.js
```
The filename is appended to the `repo_url` set in `mkdocs.yml`, but can be
prefixed with a `path` to ensure correct path resolving. The name of the source
file is shown in the tooltip.
Example:
``` markdown
path: tree/master/docs/extensions
source: metadata.md
```
### Redirecting to another page
It's sometimes necessary to move documents around in the navigation tree and
redirect user from the old URL to the new one. The `redirect` meta-tag allows
to create a redirection from the current document to the address specified in
the tag.
For instance, if your document contains:
``` markdown
redirect: /new/url
```
accessing that document's URL will automatically redirect to `/new/url`.
### Overrides
#### Page title
The page title can be overridden on a per-document basis:
``` markdown
title: Lorem ipsum dolor sit amet
```
This will set the `title` tag inside the document `head` for the current page
to the provided value. It will also override the default behavior of Material
for MkDocs which appends the site title using a dash as a separator to the page
title.
#### Page description
The page description can also be overridden on a per-document basis:
``` yaml
description: Nullam urna elit, malesuada eget finibus ut, ac tortor.
```
This will set the `meta` tag containing the site description inside the
document `head` for the current page to the provided value.
#### Disqus
As described in the [getting started guide][3], Disqus can be enabled on a
per-document basis:
``` markdown
disqus: your-shortname
```
Disqus can also be disabled for a specific page by setting it to an empty value:
``` markdown
disqus:
```
[3]: ../getting-started.md#disqus