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gatsby-remark-plantuml-lite

v0.3.2

Published

A Gatsby plugin to transform PlantUML code blocks into SVG images

Downloads

144

Readme

gatsby-remark-plantuml-lite

build_icon codeql_icon codecov_icon npm_icon

A light Gatsby plugin to transform PlantUML code blocks into SVG/PNG images(without Java and Graphviz).

Install

npm install --save gatsby-remark-plantuml-lite

or

yarn add gatsby-remark-plantuml-lite

Dependencies

This plugin depends on:

  • gatsby-transformer-remark or gatsby-plugin-mdx

And it will act as a plugin for gatsby-transformer-remark / gatsby-plugin-mdx.

This plugin is implemented using pure TypeScript, using the Web Server API officially provided by PlantUML (or your own PlantUML server), and does not need to depends on Java and Graphviz locally.

How to use

After installed, Configure in gatsby-config.js:

// gatsby-config.js
// ...
plugins: [
  // other plugins ...
  {
    resolve: `gatsby-transformer-remark`,
    options: {
      plugins: [
        `gatsby-remark-code-titles`,
        // Please make sure the order of `gatsby-remark-plantuml-lite`
        // before the `gatsby-remark-prismjs` and
        // after the `gatsby-remark-code-titles`.
        // If they exist.
        {
          resolve: `gatsby-remark-plantuml-lite`,
          options: {
            // Configuration options
            imageType: `svg`,
          },
        },
        `gatsby-remark-prismjs`,
      ],
    },
  },
  // other plugins ...
];
// ...

This example uses gatsby-transformer-remark.

If you want to use with gatsby-plugin-mdx, please refer to the Gatsby remark plugins chapter of the official documentation.

Options

Configure this plugin:

// other plugins ...
{
  resolve: `gatsby-remark-plantuml-lite`,
  options: { // Configuration options
    imageType: `svg` // `svg` or `png`, default is `svg`
    server: `https://www.plantuml.com/plantuml`, // Customize PlantUML server
  }
},
// other plugins ...

Details of configuration options:

| Name | Values | Default | Description | | :-------------: | :------------: | :---------------------------------: | :-----------------------------------------------------------: | | imageType | svg or png | svg | Type of PlantUML image returned from Web Server. | | server | url (string) | https://www.plantuml.com/plantuml | PlantUML server to generate UML diagrams on-the-fly. | | codeBlockLang | string | plantuml | Name of the codeblock languange. | | title | string or null | null | Specifies the title property of the generated PlantUML image. | | alt | string | Same with codeblocklang[^1] | Specifies the alt property of the generated PlantUML image. |

Use in Markdown

Then write PlantUML in the code block of Markdown, and specify the language type of plantuml in the code block.

For example:

```plantuml
@startuml
Alice -> Bob: Authentication Request
Bob --> Alice: Authentication Response

Alice -> Bob: Another authentication Request
Alice <-- Bob: Another authentication Response
@enduml
```

This plugin will replace PlantUML code blocks with PlantUML image.

like this:

PlantUML Example

More PlantUML syntax can be learned in the official PlantUML documentation.

License

The code in this project is released under the MIT License.

[^1]: By default, the value of the alt is bound to codeblocklang; for example, set codeblocklang = 'uml' will cause alt = 'uml'