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⚡ Bolt: optimize docs sitemap generation #97

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⚡ Bolt: optimize docs sitemap generation #97

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23 changes: 15 additions & 8 deletions docs/app/sitemap.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,15 +6,22 @@ const BASE_URL = "https://cur8d.dev/typescript";
// Next.js runs from the project root during build
const CONTENT_DIR = path.join(process.cwd(), "content");

async function getMdxFiles(dir: string, baseDir: string): Promise<string[]> {
/**
* Recursively retrieves MDX/MD file paths with a shared accumulator to minimize memory allocations.
*/
async function getMdxFiles(
dir: string,
baseDir: string,
results: string[] = [],
): Promise<string[]> {
const entries = await fs.promises.readdir(dir, { withFileTypes: true });

const pathsArray = await Promise.all(
await Promise.all(
entries.map(async (entry) => {
const fullPath = path.join(dir, entry.name);

if (entry.isDirectory()) {
return getMdxFiles(fullPath, baseDir);
await getMdxFiles(fullPath, baseDir, results);
} else if (
entry.isFile() &&
(entry.name.endsWith(".mdx") || entry.name.endsWith(".md"))
Expand All @@ -30,13 +37,12 @@ async function getMdxFiles(dir: string, baseDir: string): Promise<string[]> {
} else if (relativePath === "index") {
relativePath = "";
}
return [relativePath];
results.push(relativePath);
}
return [];
}),
);

return pathsArray.flat();
return results;
}

export const dynamic = "force-static";
Expand All @@ -47,11 +53,12 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
}

const paths = await getMdxFiles(CONTENT_DIR, CONTENT_DIR);
const now = new Date();

return paths.map((p) => ({
url: `${BASE_URL}/${p}${p ? "/" : ""}`,
lastModified: new Date(),
changeFrequency: "monthly",
lastModified: now,
changeFrequency: "monthly" as const,
priority: p === "" ? 1 : 0.8,
}));
}