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Add sitemap generation and bunext sitemap command

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- Add generateSitemap util (exported as bunext.bunextGenerateSitemap)
  that builds sitemap.xml from static pages, with exclude patterns,
  additional paths (array or sync/async function), lastmod from file
  mtime, trailing slash, and default changefreq/priority options
- Let page .server.ts files export a `sitemap` function to list URLs
  for dynamic routes, or override a static page's entry
- Add `bunext sitemap` command reading `sitemap` from bunext.config.ts,
  writing public/sitemap.xml by default, with --output/--origin flags
- Fix handle-routes test leaking a grab-router module mock into
  bunext-req-handler tests; set global.BUNEXT_ROUTER instead
- Ignore /.tmp
- Document sitemap usage in README and CLAUDE.md

Co-Authored-By: Claude Opus 5.5 <[email protected]>
This commit is contained in:
tben
2026-10-14 17:41:21 +01:00
co-authored by Claude Opus 5.5
parent 3025b1681d
commit d9de858439
11 changed files with 917 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
.gitignore
+1
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@@ -183,3 +183,4 @@ __fixtures__
/.vscode
/source.md
SECURITY.md
/.tmp
CLAUDE.md
+2
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@@ -19,6 +19,7 @@ bun run dev # tsc --watch
bunext dev # Start dev server with HMR and file watcher
bunext build # Bundle all pages for production
bunext start # Start production server from pre-built artifacts
bunext sitemap # Write public/sitemap.xml using config.sitemap
```
## Architecture
@@ -51,6 +52,7 @@ Pages live in `src/pages/`. Server logic is **separated from page files** into c
**Server file** (`page.server.ts` or `page.server.tsx`) — server-only, never sent to the browser:
- Default export or `export const server`: `BunextPageServerFn` — runs server-side before rendering, return value becomes props
- `export const sitemap`: `BunextPageSitemapFn` — optional; returns the page's sitemap entries (how dynamic routes get into `bunext sitemap`)
The framework resolves the companion by replacing the page extension with `.server.ts` or `.server.tsx`. If neither exists, no server function runs and only the default `url` prop is injected.
README.md
+119
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@@ -36,6 +36,10 @@ The goal is a framework that is:
- [API Routes](#api-routes)
- [Route Config (Body Size Limit)](#route-config-body-size-limit)
- [Error Pages](#error-pages)
- [Sitemap](#sitemap)
- [Page `sitemap` Export](#page-sitemap-export)
- [`bunext sitemap` Command](#bunext-sitemap-command)
- [Generating at Runtime](#generating-at-runtime)
- [Static Files](#static-files)
- [Caching](#caching)
- [Enabling Cache Per Page](#enabling-cache-per-page)
@@ -155,6 +159,7 @@ bun run dev
| `bunext dev` | Start the development server with HMR and file watching. |
| `bunext build` | Bundle all pages for production. Outputs artifacts to `.bunext/public/pages/` using paths relative to the project root. |
| `bunext start` | Start the production server using pre-built artifacts. |
| `bunext sitemap` | Generate `public/sitemap.xml` from your pages, using the `sitemap` options in `bunext.config.ts`. See [Sitemap](#sitemap). |
### Running the CLI
@@ -325,6 +330,8 @@ export default function ProfilePage({ props, url }: Props) {
}
```
> Server files can also export a `sitemap` function to list a page's URLs in the sitemap — see [Page `sitemap` Export](#page-sitemap-export).
> **Why separate files?** Bundling server code (Bun APIs, database clients, `fs`, secrets) into the same file as a React component causes TypeScript compilation errors because the bundler processes the page file for the browser. The `.server.ts` companion file is loaded only by the server at request time and is never included in the client bundle.
The server function receives a `ctx` object (type `BunxRouteParams`) with:
@@ -624,6 +631,117 @@ If no custom error pages exist, Bunext uses built-in preset components.
---
## Sitemap
Bunext builds a sitemap from every static page in `src/pages/`. API routes, `404`/`500` pages and ignored directories are left out. Dynamic routes (`[slug]`) cannot be discovered from the file system, so they are only included when their server file exports a `sitemap` function (see below), or when you pass their URLs through `additional_paths`.
### Page `sitemap` Export
A page's `.server.ts` file can export a `sitemap` function returning that page's entries. This is the way to list URLs for a dynamic route:
```ts
// src/pages/blog/[slug].server.ts
import type { BunextPageServerFn, BunextPageSitemapFn } from "@moduletrace/bunext/types";
const server: BunextPageServerFn = async (ctx) => {
// ...
};
export default server;
export const sitemap: BunextPageSitemapFn = async ({ route }) => {
// route === "/blog/[slug]"
const posts = await getPublishedPosts();
return posts.map((post) => ({
path: `/blog/${post.slug}`,
lastmod: post.updated_at,
priority: 0.7,
}));
};
```
- It can be sync or async, and returns strings or `BunextSitemapEntry` objects, like `additional_paths`.
- On a static page, the returned entries **replace** the page's default entry, so you can set its `priority`/`changefreq`, or return `[]` to leave the page out.
- `exclude` and the `default_*` options still apply to the returned entries.
- Generating a sitemap imports every page's server file, so their top-level code runs. If a `sitemap` function throws, generation fails with the file name in the error.
### `bunext sitemap` Command
Add a `sitemap` key to `bunext.config.ts`, then run `bunext sitemap`. By default the file is written to `public/sitemap.xml`, which is served at `/sitemap.xml`. Run it after `bunext build` in your deploy step to keep it current.
```ts
// bunext.config.ts
import type { BunextConfig } from "@moduletrace/bunext/types";
const config: BunextConfig = {
origin: "https://example.com",
sitemap: {
exclude: ["/login", "/admin/*"],
default_changefreq: "weekly",
// A function (sync or async) lets you load dynamic routes
additional_paths: async () => {
const posts = await getPublishedPosts();
return posts.map((post) => ({
path: `/blog/${post.slug}`,
lastmod: post.updated_at,
}));
},
},
};
export default config;
```
```bash
bunext sitemap # writes public/sitemap.xml
bunext sitemap -o public/sitemaps/main.xml # custom output path
bunext sitemap --origin https://staging.example.com
```
`--output` and `--origin` override `sitemap.output` and `sitemap.origin` from the config.
### Generating at Runtime
`bunextGenerateSitemap()` resolves to the same XML as a string, so you can serve it from a route instead of a file:
```ts
// src/pages/api/sitemap.ts
import bunext from "@moduletrace/bunext";
export default async function handler(req: Request) {
const xml = await bunext.bunextGenerateSitemap({
exclude: ["/login", "/admin/*", /^\/drafts/],
additional_paths: async () => {
const posts = await getPublishedPosts();
return posts.map((post) => ({
path: `/blog/${post.slug}`,
lastmod: post.updated_at,
}));
},
default_changefreq: "weekly",
});
return new Response(xml, {
headers: { "Content-Type": "application/xml" },
});
}
```
| Option | Type | Description |
| -------------------- | ------------------------------------------ | ----------------------------------------------------------------------------------------------------------- |
| `origin` | `string` | Base URL for each `<loc>`. Defaults to `config.origin`, then `http://localhost:<port>`. |
| `exclude` | `(string \| RegExp)[]` | Exact paths, subtrees ending in `/*` (`/admin/*` also excludes `/admin`), or regexes tested on the path. |
| `additional_paths` | `entries \| () => entries \| Promise<entries>` | Extra paths or entries (`path`, `lastmod`, `changefreq`, `priority`), or a sync/async function returning them, e.g. for dynamic routes. Each entry is a `string` or `BunextSitemapEntry`. |
| `use_file_lastmod` | `boolean` | Use each page file's modification time as `lastmod`. Default `true`. |
| `trailing_slash` | `boolean` | Append `/` to every non-root path. Default `false`. |
| `default_changefreq` | `BunextSitemapChangeFreq` | `changefreq` for entries that do not set one. |
| `default_priority` | `number` | `priority` (0.0 to 1.0) for entries that do not set one. |
The `sitemap` config key takes the same options, plus `output`: the file path relative to the project root (default `public/sitemap.xml`).
---
## Static Files
Place static files in the `public/` directory. They are served at the `/public/` URL path:
@@ -764,6 +882,7 @@ export default config;
| `middleware` | `(params: BunextConfigMiddlewareParams) => Response \| undefined \| Promise<...>` | — | Global middleware — see [Middleware](#middleware) |
| `websocket` | `WebSocketHandler<any>` | — | Bun WebSocket handler — see [WebSocket](#websocket) |
| `serverOptions` | `ServeOptions` | — | Extra options passed to `Bun.serve()` (excluding `fetch`) — see [Server Options](#server-options) |
| `sitemap` | `BunextSitemapConfig` | — | Options for `bunext sitemap` — see [Sitemap](#sitemap) |
### Middleware
src/__tests__/commands/sitemap.test.ts
+224
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@@ -0,0 +1,224 @@
import { describe, it, expect, beforeEach, afterEach } from "bun:test";
import path from "path";
import fs from "fs";
import os from "os";
const cliPath = path.resolve(import.meta.dir, "../../commands/index.ts");
let projectDir: string;
function writeProjectFile(file: string, content: string) {
const file_path = path.join(projectDir, file);
fs.mkdirSync(path.dirname(file_path), { recursive: true });
fs.writeFileSync(file_path, content);
}
function writeConfig(config: string) {
writeProjectFile(
"bunext.config.ts",
`const config = ${config};\nexport default config;\n`,
);
}
async function runSitemap(...args: string[]) {
const proc = Bun.spawn(["bun", cliPath, "sitemap", ...args], {
cwd: projectDir,
stdout: "pipe",
stderr: "pipe",
env: { ...process.env, NODE_ENV: "production" },
});
const [stdout, stderr, exit_code] = await Promise.all([
new Response(proc.stdout).text(),
new Response(proc.stderr).text(),
proc.exited,
]);
return { stdout, stderr, output: stdout + stderr, exit_code };
}
function readOutput(file = "public/sitemap.xml") {
return fs.readFileSync(path.join(projectDir, file), "utf-8");
}
function locs(xml: string) {
return [...xml.matchAll(/<loc>(.*?)<\/loc>/g)].map((m) => m[1]).sort();
}
beforeEach(() => {
// Outside __tests__, which the page scanner skips
projectDir = fs.mkdtempSync(path.join(os.tmpdir(), "bunext-sitemap-cmd-"));
for (const page of ["index", "about", "blog/index", "blog/[slug]", "404"]) {
writeProjectFile(`src/pages/${page}.tsx`, "export default () => null");
}
writeProjectFile(
"src/pages/api/hello.ts",
`export default () => new Response("hi")`,
);
});
afterEach(() => {
fs.rmSync(projectDir, { recursive: true, force: true });
});
describe("bunext sitemap", () => {
it("writes public/sitemap.xml using config.origin", async () => {
writeConfig(`{ origin: "https://example.com" }`);
const res = await runSitemap();
expect(res.exit_code).toBe(0);
expect(res.output).toContain(
"Sitemap with 3 URLs written to public/sitemap.xml",
);
expect(locs(readOutput())).toEqual([
"https://example.com/",
"https://example.com/about",
"https://example.com/blog",
]);
});
it("applies the sitemap config options", async () => {
writeConfig(`{
origin: "https://example.com",
sitemap: {
exclude: ["/about"],
default_changefreq: "daily",
use_file_lastmod: false,
trailing_slash: true,
additional_paths: async () => [
"/blog/from-config",
{ path: "/blog/priority", priority: 0.9 },
],
},
}`);
const res = await runSitemap();
const xml = readOutput();
expect(res.exit_code).toBe(0);
expect(locs(xml)).toEqual([
"https://example.com/",
"https://example.com/blog/",
"https://example.com/blog/from-config/",
"https://example.com/blog/priority/",
]);
expect(xml).toContain("<changefreq>daily</changefreq>");
expect(xml).toContain("<priority>0.9</priority>");
expect(xml).not.toContain("<lastmod>");
});
it("includes dynamic route URLs from a page server sitemap export", async () => {
writeConfig(`{ origin: "https://example.com" }`);
writeProjectFile(
"src/pages/blog/[slug].server.ts",
`export default async () => ({ props: {} });
export const sitemap = async ({ route }) => [
"/blog/first",
{ path: "/blog/" + (route == "/blog/[slug]" ? "second" : "bad") },
];`,
);
const res = await runSitemap();
expect(res.exit_code).toBe(0);
expect(locs(readOutput())).toEqual([
"https://example.com/",
"https://example.com/about",
"https://example.com/blog",
"https://example.com/blog/first",
"https://example.com/blog/second",
]);
});
it("writes to config.sitemap.output", async () => {
writeConfig(`{
origin: "https://example.com",
sitemap: { output: "out/site/sitemap.xml" },
}`);
const res = await runSitemap();
expect(res.exit_code).toBe(0);
expect(fs.existsSync(path.join(projectDir, "public/sitemap.xml"))).toBe(
false,
);
expect(locs(readOutput("out/site/sitemap.xml"))).toContain(
"https://example.com/about",
);
});
it("lets --output and --origin override the config", async () => {
writeConfig(`{
origin: "https://example.com",
sitemap: { origin: "https://config.dev", output: "out/config.xml" },
}`);
const res = await runSitemap(
"-o",
"cli/map.xml",
"--origin",
"https://cli.dev",
);
expect(res.exit_code).toBe(0);
expect(fs.existsSync(path.join(projectDir, "out/config.xml"))).toBe(
false,
);
expect(locs(readOutput("cli/map.xml"))).toContain(
"https://cli.dev/about",
);
});
it("falls back to sitemap.origin over config.origin", async () => {
writeConfig(`{
origin: "https://example.com",
sitemap: { origin: "https://sitemap.dev" },
}`);
await runSitemap();
expect(locs(readOutput())).toContain("https://sitemap.dev/about");
});
it("works without a sitemap config key, defaulting to localhost", async () => {
writeConfig(`{}`);
const res = await runSitemap();
expect(res.exit_code).toBe(0);
expect(locs(readOutput())).toContain("http://localhost:7000/about");
});
it("exits with code 1 when a page sitemap export throws", async () => {
writeConfig(`{ origin: "https://example.com" }`);
writeProjectFile(
"src/pages/about.server.ts",
`export const sitemap = () => { throw new Error("db down"); };`,
);
const res = await runSitemap();
expect(res.exit_code).toBe(1);
expect(res.output).toContain("src/pages/about.server.ts");
expect(res.output).toContain("db down");
expect(fs.existsSync(path.join(projectDir, "public/sitemap.xml"))).toBe(
false,
);
});
it("exits with code 1 when config additional_paths throws", async () => {
writeConfig(`{
sitemap: {
additional_paths: async () => { throw new Error("api down"); },
},
}`);
const res = await runSitemap();
expect(res.exit_code).toBe(1);
expect(res.output).toContain("api down");
});
});
src/__tests__/functions/server/handle-routes.test.ts
+18 -10
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@@ -1,4 +1,4 @@
import { describe, expect, test, mock, afterAll } from "bun:test";
import { describe, expect, test, mock, afterAll, beforeAll } from "bun:test";
import handleRoutes from "../../../../src/functions/server/handle-routes";
mock.module("../../../../src/utils/is-development", () => ({
@@ -9,15 +9,6 @@ mock.module("../../../../src/utils/grab-constants", () => ({
default: () => ({ MBInBytes: 1048576, ServerDefaultRequestBodyLimitBytes: 5242880 })
}));
mock.module("../../../../src/utils/grab-router", () => ({
default: () => ({
match: (path: string) => {
if (path === "/api/test") return { filePath: "/test-path" };
if (path === "/api/large") return { filePath: "/large-path" };
return null;
}
})
}));
mock.module("../../../../src/utils/grab-route-params", () => ({
default: async () => ({ params: {}, searchParams: {} })
@@ -36,7 +27,24 @@ mock.module("/large-path", () => ({
* Tests for routing logic within `handle-routes`.
*/
describe("handle-routes", () => {
let originalRouter: typeof global.BUNEXT_ROUTER;
// grabRouter() reads this global. Mocking the grab-router module
// instead leaks into other test files (mock.restore() does not undo
// mock.module), breaking route matching in bunext-req-handler tests.
beforeAll(() => {
originalRouter = global.BUNEXT_ROUTER;
global.BUNEXT_ROUTER = {
match: (path: string) => {
if (path === "/api/test") return { filePath: "/test-path" };
if (path === "/api/large") return { filePath: "/large-path" };
return null;
},
} as any;
});
afterAll(() => {
global.BUNEXT_ROUTER = originalRouter;
mock.restore();
});
src/__tests__/utils/generate-sitemap.test.ts
+180
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@@ -0,0 +1,180 @@
import { describe, it, expect, beforeAll, afterAll } from "bun:test";
import path from "path";
import fs from "fs";
import os from "os";
import generateSitemap, {
grabSitemapEntries,
} from "../../utils/generate-sitemap";
// grabAllPages skips anything under __tests__, so fixtures live in the OS tmp dir
const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), "bunext-sitemap-"));
const pagesDir = path.join(tmpDir, "pages");
const pageFiles = [
"index.tsx",
"about.tsx",
"404.tsx",
"__root.tsx",
"blog/index.tsx",
"blog/[slug].tsx",
"admin/index.tsx",
"admin/users.tsx",
"docs/a&b.tsx",
"api/hello.ts",
"(components)/button.tsx",
];
const serverFiles: Record<string, string> = {
// Dynamic route listing its own URLs
"products/[id].server.ts": `
export default async () => ({ props: {} });
export const sitemap = async ({ route }: { route: string }) => [
"/products/1",
{ path: "/products/2", priority: 0.8 },
route == "/products/[id]" ? "/products/route-ok" : "/products/route-bad",
];
`,
// Static page overriding its own entry
"contact.server.ts": `
export const sitemap = () => [{ path: "/contact", priority: 0.3 }];
`,
// Server file without a sitemap export keeps the default entry
"about.server.ts": "export default async () => ({ props: {} });",
};
beforeAll(() => {
for (const file of [...pageFiles, "products/[id].tsx", "contact.tsx"]) {
const file_path = path.join(pagesDir, file);
fs.mkdirSync(path.dirname(file_path), { recursive: true });
fs.writeFileSync(file_path, "export default () => null");
}
for (const [file, content] of Object.entries(serverFiles)) {
fs.writeFileSync(path.join(pagesDir, file), content);
}
(global as any).BUNEXT_DIR_NAMES = { PAGES_DIR: pagesDir };
(global as any).BUNEXT_CONSTANTS = { RouteIgnorePatterns: [/\/\(/] };
(global as any).BUNEXT_CONFIG = { origin: "https://example.com" };
});
afterAll(() => {
fs.rmSync(tmpDir, { recursive: true, force: true });
(global as any).BUNEXT_DIR_NAMES = undefined;
(global as any).BUNEXT_CONSTANTS = undefined;
(global as any).BUNEXT_CONFIG = undefined;
});
const paths = async (params?: Parameters<typeof grabSitemapEntries>[0]) =>
(await grabSitemapEntries(params)).map((e) => e.path).sort();
describe("grabSitemapEntries", () => {
it("lists static pages, skipping api, dynamic, error and ignored routes", async () => {
expect(await paths()).toEqual(
[
"/",
"/about",
"/admin",
"/admin/users",
"/blog",
"/contact",
"/docs/a&b",
"/products/1",
"/products/2",
"/products/route-ok",
].sort(),
);
});
it("excludes exact paths, subtrees and regex matches", async () => {
expect(
await paths({
exclude: ["/about", "/admin/*", /^\/docs/, "/products/*"],
}),
).toEqual(["/", "/blog", "/contact"]);
});
it("adds and dedupes additional paths, applying exclusions", async () => {
const result = await paths({
additional_paths: [
"/blog/first-post",
{ path: "blog/second-post/", priority: 0.4 },
"/about",
"/admin/secret",
],
exclude: ["/admin/*"],
});
expect(result).toContain("/blog/first-post");
expect(result).toContain("/blog/second-post");
expect(result.filter((p) => p == "/about")).toHaveLength(1);
expect(result).not.toContain("/admin/secret");
});
it("uses a page's server sitemap export for its entries", async () => {
const entries = await grabSitemapEntries();
const find = (p: string) => entries.find((e) => e.path == p);
expect(find("/products/2")?.priority).toBe(0.8);
expect(find("/contact")?.priority).toBe(0.3);
expect(find("/contact")?.lastmod).toBeUndefined();
expect(find("/about")?.lastmod).toBeInstanceOf(Date);
});
it("accepts a sync or async function for additional paths", async () => {
expect(
await paths({ additional_paths: () => ["/blog/sync-post"] }),
).toContain("/blog/sync-post");
const result = await paths({
additional_paths: async () => [
"/blog/async-post",
{ path: "/admin/hidden" },
],
exclude: ["/admin/*"],
});
expect(result).toContain("/blog/async-post");
expect(result).not.toContain("/admin/hidden");
});
it("applies trailing slashes except on root", async () => {
expect(await paths({ trailing_slash: true })).toContain("/about/");
expect(await paths({ trailing_slash: true })).toContain("/");
});
it("uses file mtime as lastmod unless disabled", async () => {
const [entry] = await grabSitemapEntries();
expect(entry.lastmod).toBeInstanceOf(Date);
const [no_lastmod] = await grabSitemapEntries({ use_file_lastmod: false });
expect(no_lastmod.lastmod).toBeUndefined();
});
});
describe("generateSitemap", () => {
it("renders valid sitemap xml with escaped absolute urls", async () => {
const xml = await generateSitemap({
default_changefreq: "weekly",
default_priority: 0.5,
use_file_lastmod: false,
additional_paths: [{ path: "/blog/post", priority: 2 }],
});
expect(xml).toStartWith(`<?xml version="1.0" encoding="UTF-8"?>`);
expect(xml).toContain(
`<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">`,
);
expect(xml).toContain("<loc>https://example.com/</loc>");
expect(xml).toContain("<loc>https://example.com/docs/a&amp;b</loc>");
expect(xml).toContain("<changefreq>weekly</changefreq>");
expect(xml).toContain("<priority>0.5</priority>");
expect(xml).toContain("<priority>1.0</priority>");
expect(xml).not.toContain("<lastmod>");
});
it("uses the origin param over config and strips its trailing slash", async () => {
const xml = await generateSitemap({ origin: "https://other.dev/" });
expect(xml).toContain("<loc>https://other.dev/about</loc>");
});
});
src/commands/index.ts
+2
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@@ -4,6 +4,7 @@ import { program } from "commander";
import start from "./start";
import dev from "./dev";
import build from "./build";
import sitemap from "./sitemap";
import { log } from "../utils/log";
/**
@@ -20,6 +21,7 @@ program
program.addCommand(dev());
program.addCommand(start());
program.addCommand(build());
program.addCommand(sitemap());
/**
* # Handle Unavailable Commands
src/commands/sitemap/index.ts
+63
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@@ -0,0 +1,63 @@
import { Command } from "commander";
import { mkdirSync, writeFileSync } from "fs";
import path from "path";
import { log } from "../../utils/log";
import grabDirNames from "../../utils/grab-dir-names";
import grabConfig from "../../functions/grab-config";
import grabConstants from "../../utils/grab-constants";
import generateSitemap from "../../utils/generate-sitemap";
type Options = {
output?: string;
origin?: string;
};
export default function () {
return new Command("sitemap")
.description("Generate sitemap.xml from the pages directory")
.option(
"-o, --output <path>",
"Output file relative to the project root (default: public/sitemap.xml)",
)
.option("--origin <url>", "Base URL for sitemap links")
.action(async (options: Options) => {
const { ROOT_DIR, PUBLIC_DIR } = grabDirNames();
global.BUNEXT_CONFIG = (await grabConfig()) || {};
global.BUNEXT_CONSTANTS = grabConstants();
const { output, ...sitemap_config } =
global.BUNEXT_CONFIG.sitemap || {};
try {
const xml = await generateSitemap({
...sitemap_config,
origin: options.origin || sitemap_config.origin,
});
const output_path = options.output || output;
const output_file = output_path
? path.resolve(ROOT_DIR, output_path)
: path.join(PUBLIC_DIR, "sitemap.xml");
mkdirSync(path.dirname(output_file), { recursive: true });
writeFileSync(output_file, xml, "utf-8");
const url_count = xml.match(/<url>/g)?.length || 0;
log.success(
`Sitemap with ${url_count} URLs written to ${path.relative(
ROOT_DIR,
output_file,
)}`,
);
} catch (error: any) {
log.error(
`Failed to generate sitemap: ${error?.message || error}`,
);
process.exit(1);
}
process.exit();
});
}
src/index.ts
+2
View File
@@ -1,10 +1,12 @@
import bunextInit from "./functions/bunext-init";
import bunextRequestHandler from "./functions/server/bunext-req-handler";
import generateSitemap from "./utils/generate-sitemap";
import { log } from "./utils/log";
const bunext = {
bunextRequestHandler,
bunextLog: log,
bunextInit,
bunextGenerateSitemap: generateSitemap,
};
export default bunext;
src/types/index.ts
+85
View File
@@ -110,6 +110,10 @@ export type BunextConfig = {
* Public environment variables to be passed to the client
*/
public_envs?: Record<string, string>;
/**
* Options for the `bunext sitemap` command
*/
sitemap?: BunextSitemapConfig;
};
export type BunextConfigMiddlewareParams = {
@@ -216,8 +220,21 @@ export type BunextPageModule = {
export type BunextPageServerModule = {
default?: BunextPageServerFn;
server?: BunextPageServerFn;
sitemap?: BunextPageSitemapFn;
};
/**
* Returns the sitemap entries for a page. Required for dynamic routes
* (`[slug]`) to appear in the sitemap. On a static page, the returned
* entries replace the page's default entry.
*/
export type BunextPageSitemapFn = (params: {
/**
* The page's route pattern, e.g. `/blog/[slug]`
*/
route: string;
}) => BunextSitemapAdditionalPaths | Promise<BunextSitemapAdditionalPaths>;
export type BunextHTMLProps = DetailedHTMLProps<
HtmlHTMLAttributes<HTMLHtmlElement>,
HTMLHtmlElement
@@ -452,3 +469,71 @@ export type BuildDataType = {
build_date_unix: number;
build_date: string;
};
export type BunextSitemapChangeFreq =
| "always"
| "hourly"
| "daily"
| "weekly"
| "monthly"
| "yearly"
| "never";
export type BunextSitemapEntry = {
/**
* URL path (e.g. `/blog/my-post`) or absolute URL.
*/
path: string;
lastmod?: Date | string;
changefreq?: BunextSitemapChangeFreq;
/**
* Between `0.0` and `1.0`.
*/
priority?: number;
};
export type BunextSitemapAdditionalPaths = (string | BunextSitemapEntry)[];
export type BunextGenerateSitemapParams = {
/**
* Base URL prepended to every path. Defaults to `config.origin`,
* falling back to `http://localhost:<port>`.
*/
origin?: string;
/**
* Paths to leave out. A string matches a path exactly, or a whole
* subtree when it ends with `/*` (e.g. `/admin/*`). A RegExp is
* tested against the path.
*/
exclude?: (string | RegExp)[];
/**
* Extra entries, typically concrete URLs for dynamic routes
* (`[slug]`), which cannot be discovered from the file system. Can
* also be a function (sync or async) returning them, e.g. to load
* them from a database.
*/
additional_paths?:
| BunextSitemapAdditionalPaths
| (() =>
| BunextSitemapAdditionalPaths
| Promise<BunextSitemapAdditionalPaths>);
/**
* Use each page file's modification time as `lastmod`. Defaults to
* `true`.
*/
use_file_lastmod?: boolean;
/**
* Append a trailing slash to every non-root path. Defaults to `false`.
*/
trailing_slash?: boolean;
default_changefreq?: BunextSitemapChangeFreq;
default_priority?: number;
};
export type BunextSitemapConfig = BunextGenerateSitemapParams & {
/**
* Output file, relative to the project root. Defaults to
* `public/sitemap.xml`, which is served at `/sitemap.xml`.
*/
output?: string;
};
src/utils/generate-sitemap.ts
+220
View File
@@ -0,0 +1,220 @@
import { statSync } from "fs";
import path from "path";
import type {
BunextGenerateSitemapParams,
BunextPageServerModule,
BunextSitemapAdditionalPaths,
BunextSitemapEntry,
} from "../types";
import grabPageServerPath from "../functions/server/web-pages/grab-page-server-path";
import grabAllPages from "./grab-all-pages";
import grabDirNames from "./grab-dir-names";
import grabOrigin from "./grab-origin";
import grabRelativePath from "./grab-relative-path";
import isDevelopment from "./is-development";
const ErrorPagePaths = ["/404", "/500"];
/**
* # Generate a sitemap.xml string for all pages
* Dynamic routes are only included through a `sitemap` export in their
* `.server.ts` file, or through `additional_paths`.
*/
export default async function generateSitemap(
params?: BunextGenerateSitemapParams,
): Promise<string> {
const entries = await grabSitemapEntries(params);
const origin = (params?.origin || grabOrigin()).replace(/\/+$/, "");
const urls = entries.map((entry) => {
const loc = entry.path.match(/^https?:\/\//)
? entry.path
: `${origin}${entry.path}`;
const lines = [` <loc>${escapeXml(loc)}</loc>`];
if (entry.lastmod) {
const lastmod =
entry.lastmod instanceof Date
? entry.lastmod.toISOString()
: entry.lastmod;
lines.push(` <lastmod>${escapeXml(lastmod)}</lastmod>`);
}
if (entry.changefreq) {
lines.push(` <changefreq>${entry.changefreq}</changefreq>`);
}
if (typeof entry.priority == "number") {
const priority = Math.min(Math.max(entry.priority, 0), 1);
lines.push(` <priority>${priority.toFixed(1)}</priority>`);
}
return ` <url>\n${lines.join("\n")}\n </url>`;
});
return [
`<?xml version="1.0" encoding="UTF-8"?>`,
`<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">`,
...urls,
`</urlset>`,
``,
].join("\n");
}
export async function grabSitemapEntries(
params?: BunextGenerateSitemapParams,
): Promise<BunextSitemapEntry[]> {
const use_file_lastmod = params?.use_file_lastmod ?? true;
const entries: BunextSitemapEntry[] = [];
const pages = grabAllPages({ exclude_api: true });
for (let i = 0; i < pages.length; i++) {
const page = pages[i];
if (!page.local_path) continue;
const page_path = page.url_path.replace(/\/index$/, "") || "/";
if (ErrorPagePaths.includes(page_path)) continue;
const page_sitemap_paths = await grabPageSitemapPaths({
file_path: page.local_path,
route: page_path,
});
if (page_sitemap_paths) {
entries.push(...page_sitemap_paths.map(toSitemapEntry));
continue;
}
if (page.url_path.match(/\[/)) continue;
entries.push({
path: page_path,
lastmod: use_file_lastmod
? statSync(page.local_path).mtime
: undefined,
});
}
const additional_paths =
typeof params?.additional_paths == "function"
? await params.additional_paths()
: params?.additional_paths;
entries.push(...(additional_paths || []).map(toSitemapEntry));
const seen = new Set<string>();
const final_entries: BunextSitemapEntry[] = [];
for (const entry of entries) {
const path = normalizePath(entry.path, params?.trailing_slash);
if (seen.has(path)) continue;
if (isExcluded(path, params?.exclude)) continue;
seen.add(path);
final_entries.push({
changefreq: params?.default_changefreq,
priority: params?.default_priority,
...entry,
path,
});
}
return final_entries;
}
/**
* # Run the `sitemap` export of a page's server file, if any
*/
async function grabPageSitemapPaths({
file_path,
route,
}: {
file_path: string;
route: string;
}): Promise<BunextSitemapAdditionalPaths | undefined> {
const { server_file_path } = grabPageServerPath({ file_path });
if (!server_file_path) return;
const { ROOT_DIR } = grabDirNames();
const server_ctx =
global.BUNEXT_SSR_BUNDLER_CTX_MAP?.[grabRelativePath(server_file_path)];
const final_server_path = server_ctx?.local_path
? path.join(ROOT_DIR, server_ctx.path)
: server_file_path;
// Bust the import cache in development so edits to the server file
// are picked up without a restart.
const server_module: BunextPageServerModule = await import(
isDevelopment()
? `${final_server_path}?t=${Date.now()}`
: final_server_path
);
if (typeof server_module.sitemap != "function") return;
try {
return await server_module.sitemap({ route });
} catch (error: any) {
throw new Error(
`\`sitemap\` export of ${grabRelativePath(server_file_path)} failed: ${
error?.message || error
}`,
);
}
}
function toSitemapEntry(
path: BunextSitemapAdditionalPaths[number],
): BunextSitemapEntry {
return typeof path == "string" ? { path } : path;
}
function normalizePath(path: string, trailing_slash?: boolean) {
if (path.match(/^https?:\/\//)) return path;
let new_path = `/${path}`.replace(/\/{2,}/g, "/");
if (new_path != "/") new_path = new_path.replace(/\/$/, "");
if (trailing_slash && new_path != "/") new_path += "/";
return new_path;
}
function isExcluded(path: string, exclude?: (string | RegExp)[]) {
if (!exclude?.length) return false;
const bare_path =
path.replace(/^https?:\/\/[^/]+/, "").replace(/(.)\/$/, "$1") || "/";
for (const pattern of exclude) {
if (pattern instanceof RegExp) {
if (pattern.test(path) || pattern.test(bare_path)) return true;
continue;
}
const normalized = normalizePath(pattern.replace(/\/\*$/, ""));
if (pattern.endsWith("/*")) {
if (
bare_path == normalized ||
bare_path.startsWith(`${normalized.replace(/\/$/, "")}/`)
) {
return true;
}
} else if (bare_path == normalized) {
return true;
}
}
return false;
}
function escapeXml(value: string) {
return value
.replace(/&/g, "&amp;")
.replace(/</g, "&lt;")
.replace(/>/g, "&gt;")
.replace(/"/g, "&quot;")
.replace(/'/g, "&apos;");
}