68 lines
2.1 KiB
TypeScript
68 lines
2.1 KiB
TypeScript
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import { isMetadataRoute, isMetadataRouteFile } from "./is-metadata-route";
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import path from "../../shared/lib/isomorphic/path";
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import { djb2Hash } from "../../shared/lib/hash";
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/*
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* If there's special convention like (...) or @ in the page path,
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* Give it a unique hash suffix to avoid conflicts
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*
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* e.g.
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* /app/open-graph.tsx -> /open-graph/route
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* /app/(post)/open-graph.tsx -> /open-graph/route-[0-9a-z]{6}
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*/
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export function getMetadataRouteSuffix(page: string) {
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let suffix = "";
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if ((page.includes("(") && page.includes(")")) || page.includes("@")) {
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suffix = djb2Hash(page).toString(36).slice(0, 6);
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}
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return suffix;
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}
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/**
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* Map metadata page key to the corresponding route
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*
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* static file page key: /app/robots.txt -> /robots.xml -> /robots.txt/route
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* dynamic route page key: /app/robots.tsx -> /robots -> /robots.txt/route
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*
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* @param page
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* @returns
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*/
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export function normalizeMetadataRoute(page: string) {
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let route = page;
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if (isMetadataRoute(page)) {
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// Remove the file extension, e.g. /route-path/robots.txt -> /route-path
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const pathnamePrefix = page.slice(0, -(path.basename(page).length + 1));
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const suffix = getMetadataRouteSuffix(pathnamePrefix);
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if (route === "/sitemap") {
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route += ".xml";
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}
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if (route === "/robots") {
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route += ".txt";
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}
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if (route === "/manifest") {
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route += ".webmanifest";
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}
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// Support both /<metadata-route.ext> and custom routes /<metadata-route>/route.ts.
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// If it's a metadata file route, we need to append /[id]/route to the page.
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if (!route.endsWith("/route")) {
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const isStaticMetadataFile = isMetadataRouteFile(route, [], true);
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const { dir, name: baseName, ext } = path.parse(route);
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const isSingleRoute = page.startsWith("/sitemap") ||
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page.startsWith("/robots") ||
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page.startsWith("/manifest") ||
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isStaticMetadataFile;
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route = path.join(
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dir,
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`${baseName}${suffix ? `-${suffix}` : ""}${ext}`,
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isSingleRoute ? "" : "[[...__metadata_id__]]",
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"route",
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);
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}
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}
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return route;
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}
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