74 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			74 lines
		
	
	
		
			2.1 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { visit } from "unist-util-visit"
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import { QuartzEmitterPlugin } from "../types"
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import { Element } from "hast"
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import path from "path"
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import { trimPathSuffix } from "../../path"
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interface Options {
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  indexAnchorLinks: boolean,
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  indexExternalLinks: boolean,
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}
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const defaultOptions: Options = {
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  indexAnchorLinks: false,
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  indexExternalLinks: false,
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}
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export type ContentIndex = Map<string, ContentDetails> 
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export type ContentDetails = {
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  title: string,
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  links?: string[],
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  tags?: string[],
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  content: string,
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}
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export const ContentIndex: QuartzEmitterPlugin<Options> = (userOpts) => {
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  const opts = { ...userOpts, ...defaultOptions }
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  return {
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    name: "ContentIndex",
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    async emit(_contentDir, _cfg, content, _resources, emit) {
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      const fp = path.join("static", "contentIndex")
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      const linkIndex: ContentIndex = new Map()
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      for (const [tree, file] of content) {
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        let slug = trimPathSuffix(file.data.slug!)
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        const outgoing: Set<string> = new Set()
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        visit(tree, 'element', (node: Element) => {
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          if (node.tagName === 'a' && node.properties && typeof node.properties.href === 'string') {
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            let dest = node.properties.href
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            if (dest.startsWith(".")) {
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              const normalizedPath = path.normalize(path.join(slug, dest))
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              dest = trimPathSuffix(normalizedPath)
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              outgoing.add(dest)
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            } else if (dest.startsWith("#")) {
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              if (opts.indexAnchorLinks) {
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                outgoing.add(dest)
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              }
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            } else {
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              if (opts.indexExternalLinks) {
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                outgoing.add(dest)
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              }
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            }
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          }
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        })
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        linkIndex.set(slug, {
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          title: file.data.frontmatter?.title!,
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          links: [...outgoing],
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          tags: file.data.frontmatter?.tags,
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          content: file.data.text ?? ""
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        })
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      }
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      await emit({
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        content: JSON.stringify(Object.fromEntries(linkIndex)),
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        slug: fp,
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        ext: ".json",
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      })
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      return [`${fp}.json`]
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    },
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    getQuartzComponents: () => [],
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  }
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}
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