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Description:

mkdocsbuildplantumlplugin 1.11.0

MkDocs-Build-Plantuml-Plugin
Table of Contents

About the Project
Prerequisites
Installation
Usage
Dark Mode Support
Known restrictions
Contributing

About the Project
This plugin automates the generation of PlantUML image files when using mkdocs serve.
The motivation behind this plugin is to provide a solution for users who prefer not to use inline diagrams and have encountered challenges with non-functional !includes.
Note: If you want inline diagrams in your Markdown files
```plantuml
Alice -> Bob
```

this plugin does not meet your requirements. Please check out plantuml-markdown which does exactly that.
Prerequisites
You need to have installed:

Python3 (>= 3.12)
MkDocs
Java for Plantuml (If running locally)
Plantuml (if running locally)
This plugin (needs httplib2 for server rendering)

On macOS you can install plantuml with homebrew which puts a plantuml executable in /usr/local/bin/plantuml.
Installation
pip3 install mkdocs-build-plantuml-plugin

Usage
Plugin Settings
In mkdocs.yml add this plugin section (depicted are the default values):
plugins:
- search
- build_plantuml:
render: 'server' # or "local" for local rendering
bin_path: '/usr/local/bin/plantuml' # ignored when render: server
server: 'http://www.plantuml.com/plantuml' # official plantuml server
disable_ssl_certificate_validation: true # for self-signed and invalid certs
output_format: 'svg' # or "png"
allow_multiple_roots: false # in case your codebase contains more locations for diagrams (all ending in diagram_root)
diagram_root: 'docs/diagrams' # should reside under docs_dir
output_folder: 'out'
input_folder: 'src'
input_extensions: '' # comma separated list of extensions to parse, by default every file is parsed

It is recommended to use the server option, which is much faster than local.
Example folder structure
This would result in this directory layout:
docs/ # the default MkDocs docs_dir directory
diagrams/
include/ # for include files like theme.puml etc (optional, won't be generated)
out/ # the generated images, which can be included in your md files
subdir1/file1.svg # you can organise your diagrams in subfolders, see below
file.svg
src/ # the Plantuml sources
subdir1/file1.puml
subdir2/
file.puml
mkdocs.yml # mkdocs configuration file

When starting with mkdocs serve, it will create all diagrams initially.
Afterwards, it checks if the *.puml (or other ending) file has a newer timestamp than the corresponding file in out. If so, it will generate a new image (works also with includes). This way, it won‘t take long until the site reloads and does not get into a loop.
Including generated images
Inside your index.md or any other Markdown file you can then reference any created image as usual:
# My MkDocs Document

## Example Plantuml Images

![file](diagrams/out/file.svg)

![file1](diagrams/out/subdir1/file1.svg)

Dark Mode Support
Since Version 1.4 this plugin can support dark mode when rendering with server (prefers-color-scheme).
Note: Not in local mode, only server rendering mode

Grab a general (ie. for Material Theme) dark mode support css file (i.e. from henrywhitaker3/mkdocs-material-dark-theme) for your theme

Enable theme support in this plugin:
- build_plantuml:
[...]
theme_enabled: true
theme_folder: "include/themes"
theme_light: "light.puml"
theme_dark: "dark.puml"

You have to provide two puml theme files, ie mydarkmode.puml and mylightmode.puml

In the out directory a <file>.<ext> will be created and additionally a <file>_dark.<ext>

Insert your images in markdown with ![file](diagrams/out/file.svg#darkable) (this selector is then used in the JS file to know which images have to be exchanged)

provide extra_javascript file which handles the switch

You can find an example in the example folder
Example Output

Known restrictions

If you use !include and the render: "server" option, this plugin merges those files manually. If there are any issues or side effects because of that, please open a ticket.
Dark mode / theme support is currently only available in server rendering mode.

Contributing
Contributions are welcome! If you find any issues or have suggestions for improvements, please open an issue or submit a pull request.