various polish

Jacky Zhao

2023-07-02 e0ebee5aa9b3646de722f139f1d8d15591df538e

 quartz/plugins/transformers/links.ts

@@ -1,5 +1,5 @@
import { QuartzTransformerPlugin } from "../types"
import { relative, relativeToRoot, slugify } from "../../path"
import { clientSideSlug, relativeToRoot, slugify, trimPathSuffix } from "../../path"
import path from "path"
import { visit } from 'unist-util-visit'
import isAbsoluteUrl from "is-absolute-url"
@@ -9,33 +9,36 @@
  markdownLinkResolution: 'absolute' | 'relative'
  /** Strips folders from a link so that it looks nice */
  prettyLinks: boolean
  indexAnchorLinks: boolean
  indexExternalLinks: boolean
}

const defaultOptions: Options = {
  markdownLinkResolution: 'absolute',
  prettyLinks: true
  prettyLinks: true,
  indexAnchorLinks: false,
  indexExternalLinks: false,
}

export const ResolveLinks: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
export const CrawlLinks: QuartzTransformerPlugin<Partial<Options> | undefined> = (userOpts) => {
  const opts = { ...defaultOptions, ...userOpts }
  return {
    name: "LinkProcessing",
    markdownPlugins() {
      return []
    },
    htmlPlugins() {
      return [() => {
        return (tree, file) => {
          const curSlug = file.data.slug!
          const curSlug = clientSideSlug(file.data.slug!)
          const transformLink = (target: string) => {
            const targetSlug = slugify(decodeURI(target).trim())
            if (opts.markdownLinkResolution === 'relative' && !path.isAbsolute(targetSlug)) {
              return './' + relative(curSlug, targetSlug)
              // TODO
              // return './' + relative(curSlug, targetSlug)
            } else {
              return './' + relativeToRoot(curSlug, targetSlug)
            }
          }

          const outgoing: Set<string> = new Set()
          visit(tree, 'element', (node, _index, _parent) => {
            // rewrite all links
            if (
@@ -43,11 +46,26 @@
              node.properties &&
              typeof node.properties.href === 'string'
            ) {
              node.properties.className = isAbsoluteUrl(node.properties.href) ? "external" : "internal"
              let dest = node.properties.href
              node.properties.className = isAbsoluteUrl(dest) ? "external" : "internal"

              // don't process external links or intra-document anchors
              if (!(isAbsoluteUrl(node.properties.href) || node.properties.href.startsWith("#"))) {
                node.properties.href = transformLink(node.properties.href)
              if (!(isAbsoluteUrl(dest) || dest.startsWith("#"))) {
                node.properties.href = transformLink(dest)
              }
              
              dest = node.properties.href
              if (dest.startsWith(".")) {
                const normalizedPath = path.normalize(path.join(curSlug, dest))
                outgoing.add(trimPathSuffix(normalizedPath))
              } else if (dest.startsWith("#")) {
                if (opts.indexAnchorLinks) {
                  outgoing.add(dest)
                }
              } else {
                if (opts.indexExternalLinks) {
                  outgoing.add(dest)
                }
              }

              // rewrite link internals if prettylinks is on
@@ -56,9 +74,9 @@
              }
            }

            // transform all images
            // transform all other resources that may use links
            if (
              node.tagName === 'img' &&
              ["img", "video", "audio", "iframe"].includes(node.tagName) &&
              node.properties &&
              typeof node.properties.src === 'string'
            ) {
@@ -68,8 +86,16 @@
              }
            }
          })

          file.data.links = [...outgoing]
        }
      }]
    }
  }
}

declare module 'vfile' {
  interface DataMap {
    links: string[]
  }
}