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@gasket/plugin-docs

The plugin enables the docs command, which centralizes doc files for the app's plugins, presets, and supporting modules.

Installation

New apps

gasket create <app-name> --plugins @gasket/plugin-docs

Existing apps

npm i @gasket/plugin-docs

Modify plugins section of your gasket.config.js:

module.exports = {
  plugins: {
    add: [
+      '@gasket/plugin-docs'
    ]
  }
}

Configuration

To be set in under docs in the gasket.config.js.

  • outputDir - (string) Name of the directory, relative to the app's package, where doc files will be collected to. Default is .docs.

Commands

docs command

The docs command, inspired by cargo doc from the Rust language, allows app developers to generate documentation for their Gasket projects. Only those presets and plugins that are configured for a project, will be used to determine what documentation is available.

When running this command, markdown and other files will gathered from installed node modules and collated to the output directory when they can be viewed together.

Lifecycles

docsSetup

The docs command will assemble configuration for plugins and modules, based on available metadata, enabled by the @gasket/plugin-metadata.

By default, the files that are collated include a package's README.md and any files that exist under a docs directory. Additionally, if any metadata defines link, these files will be collected, too.

The docsSetup lifecycle allows plugin developers to tune the docsConfig that is compile for their plugin. Files or file globs can be set, and links changed as needed. The defaults are an available option to reference.

Example setup

module.exports = {
  name: 'example',
  hooks: {
    async docsSetup(gasket, { defaults }) {
      return {
        ...defaults,
        link: 'OTHER.md',
        files: [
          'API.md',
          'docs/**/*.md'
        ],
        transforms: [{
          test: /\.md$/,
          handler: content => content.replace('something', 'nothing')
        }],
        // collate docs for any supporting modules
        modules: {
          '@some/module': {
            link: 'README.md'
          },
          'another-module': {
            link: 'README.md#go-here',
            files: ['html/**/*.html'],
            transforms: [{
               test: /\.html$/,
               handler: content => content.replace(/everything/g, 'nothing')
             }]
          }
        }
      }
    }
  }
}

Transforms

Transforms can also be added in the docsSetup lifecycle. These are plugins to adjust content for files that match the transform's test RegExp. By default, these will only affect docs collected the plugin's package. If the transform should be able affect all collected docs, the global property should be set to true.

Additional data is available to handlers to help with transformations which can be read about in the DocsTransformHandler API.

Modules

Beside docs for the plugin itself, docsSetup for supporting modules can also be described. For modules from metadata, if a docsSetup is found, the files described will be collected, and link for the generated index go to the link specified in the docsSetup, instead of the module's homepage.

Alternatively, modules can described their own setup in their package.json by defining a gasket.docsSetup property. However, Being JSON, transforms or other setup functions cannot be described this way:

{
  "name": "example",
  "version": "1.2.3",
  "gasket": {
    "docsSetup": {
      "link": "OTHER.md#go-here",
      "files": [
        "more-docs/**/*.*"
      ]
    }
  }
}

docsView

Allows a plugin to provide a view of the docs for the user.

Example viewer

const view = require('example-markdown-viewer');

module.exports = {
  name: 'example',
  hooks: {
    async docsView(gasket, docsConfigSet) {
      const { docsRoot } = docsConfigSet;

      await view(docsRoot);
    }
  }
}

The @gasket/plugin-docsify hooks this lifecycle, to render the docs using Docsify.

docsGenerate

Allows a plugin to add documentation that has to be programmatically generated.

An example graph

const writeFile = require('util').promisify(require('fs').writeFile);

module.exports = {
  name: 'questions',
  hooks: {
    async docsGenerate(gasket, docsConfigSet) {
      await writeFile('FAQ.md', 'Just shoot me a call at (605) 475-6968');

      return {
        name: 'FAQ',
        description: 'Frequently Asked Questions',
        link: '/FAQ.md',
        targetRoot: docsConfigSet.docsRoot
      };
    }
  }
}

Usage

Presets

Presets can also set up custom docs. This is done by defining a docsSetup property object on the module, which will be used to establish the DocsConfig for the preset.

// gasket-preset-example.js
module.exports = {
  require,
  docsSetup: {
    link: 'OTHER.md#go-here',
    files: ['more-docs/**/*.*'],
  }
}

How it works

The docs command will gather info about plugins and modules from their metadata and docsSetup, and will assemble a docsConfig for each. These configs are are organized by type in a docsConfigSet, which is then used to copy files to the outputDir, and perform any transforms as needed. An index is generated in markdown from docsConfigSet which serves as the entry in the doc files. If a plugin is installed that hooks the docsView lifecycle, it can serve the content in a more viewable fashion for the user.

License

MIT