50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { FilePath, FullSlug, resolveRelative, simplifySlug } from "../../util/path"
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import { QuartzEmitterPlugin } from "../types"
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import path from "path"
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export const AliasRedirects: QuartzEmitterPlugin = () => ({
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  name: "AliasRedirects",
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  getQuartzComponents() {
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    return []
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  },
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  async emit({ argv }, content, _resources, emit): Promise<FilePath[]> {
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    const fps: FilePath[] = []
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    for (const [_tree, file] of content) {
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      const ogSlug = simplifySlug(file.data.slug!)
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      const dir = path.posix.relative(argv.directory, file.dirname ?? argv.directory)
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      let aliases: FullSlug[] = []
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      if (file.data.frontmatter?.aliases) {
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        aliases = file.data.frontmatter?.aliases
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      } else if (file.data.frontmatter?.alias) {
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        aliases = [file.data.frontmatter?.alias]
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      }
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      for (const alias of aliases) {
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        const slug = path.posix.join(dir, alias) as FullSlug
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        const redirUrl = resolveRelative(slug, file.data.slug!)
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        const fp = await emit({
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          content: `
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            <!DOCTYPE html>
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            <html lang="en-us">
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            <head>
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            <title>${ogSlug}</title>
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            <link rel="canonical" href="${redirUrl}">
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            <meta name="robots" content="noindex">
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            <meta charset="utf-8">
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            <meta http-equiv="refresh" content="0; url=${redirUrl}">
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            </head>
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            </html>
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            `,
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          slug,
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          ext: ".html",
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        })
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        fps.push(fp)
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      }
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    }
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    return fps
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  },
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})
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