import { FilePath, FullSlug, joinSegments, 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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import { write } from "./helpers"
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import DepGraph from "../../depgraph"
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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 getDependencyGraph(_ctx, _content, _resources) {
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// TODO implement
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return new DepGraph<FilePath>()
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},
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async emit(ctx, content, _resources): Promise<FilePath[]> {
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const { argv } = ctx
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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, path.dirname(file.data.filePath!))
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const aliases = file.data.frontmatter?.aliases ?? []
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const slugs: FullSlug[] = aliases.map((alias) => path.posix.join(dir, alias) as FullSlug)
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const permalink = file.data.frontmatter?.permalink
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if (typeof permalink === "string") {
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slugs.push(permalink as FullSlug)
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}
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for (let slug of slugs) {
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// fix any slugs that have trailing slash
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if (slug.endsWith("/")) {
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slug = joinSegments(slug, "index") as FullSlug
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}
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const redirUrl = resolveRelative(slug, file.data.slug!)
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const fp = await write({
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ctx,
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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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