fix(docs): match documentation sources to release versions (#11868)

docs/app/docs/layout.tsx

@@ -10,11 +10,12 @@ import type { PageTreesByVersion } from "./provider";
 import { DocsProvider } from "./provider";
 import { DocsShell } from "./shell";
 
-const [latestVersion, version16] = docsVersions;
+const [betaVersion, latestVersion, version16] = docsVersions;
 
 const pageTreesByVersion = {
 	latest: getSourceFor(latestVersion.id).getPageTree(),
 	"1.6": getSourceFor(version16.id).getPageTree(),
+	beta: getSourceFor(betaVersion.id).getPageTree(),
 } satisfies PageTreesByVersion;
 
 function getAvailablePaths(version: DocsVersion) {
@@ -27,6 +28,7 @@ function getAvailablePaths(version: DocsVersion) {
 const versionAvailability = {
 	latest: getAvailablePaths(latestVersion),
 	"1.6": getAvailablePaths(version16),
+	beta: getAvailablePaths(betaVersion),
 } satisfies VersionAvailability;
 const resolvedDocsVersions = loadDocsVersions();
 export default function Layout({ children }: { children: ReactNode }) {

docs/components/version-switcher.tsx

@@ -49,6 +49,7 @@ function useDismissablePopover(
 
 function getVersionTitle(version: DocsVersion) {
 	if (version.id === "latest") return "Latest Version";
+	if (version.id === "beta") return "Beta Version";
 	return `Version ${version.id}`;
 }
 

docs/lib/docs-version-sources.json

@@ -1,6 +1,6 @@
 {
   "latest": {
-    "contentDirectory": "docs",
+    "contentDirectory": "_generated/docs/latest",
     "editBranch": "main",
     "commitSha": null
   },
@@ -8,5 +8,10 @@
     "contentDirectory": "_generated/docs/v1-6",
     "editBranch": "v1.6.x",
     "commitSha": "c11bfa667f9f260092c3d4c3798fe50d74b79718"
+  },
+  "beta": {
+    "contentDirectory": "_generated/docs/beta",
+    "editBranch": "next",
+    "commitSha": "be781d5fd26aa4719f5f4fa3ebd767736d4883b1"
   }
 }

docs/lib/docs-versions.test.ts

@@ -6,17 +6,29 @@ import {
 	getVersionFromPathname,
 	getVersionTargetHref,
 	resolveVersionFromSlug,
+	scopeDocsHref,
 	versionedDocsHref,
 } from "./docs-versions";
 
-const [latestVersion, version16] = docsVersions;
+const [betaVersion, latestVersion, version16] = docsVersions;
 
 const availability: VersionAvailability = {
 	latest: [],
 	"1.6": ["/docs/introduction", "/docs/plugins/scim"],
+	beta: ["/docs/introduction", "/docs/plugins/scim"],
 };
 
 describe("documentation versions", () => {
+	it("lists beta before stable while keeping stable as the default", () => {
+		expect(docsVersions.map((version) => version.id)).toEqual([
+			"beta",
+			"latest",
+			"1.6",
+		]);
+		expect(getVersionFromPathname("/docs/introduction").id).toBe("latest");
+		expect(resolveVersionFromSlug([]).version.id).toBe("latest");
+	});
+
 	it("targets maintenance branches for documentation edits", () => {
 		expect(docsVersionSources[version16.id].editBranch).toBe("v1.6.x");
 	});
@@ -28,6 +40,51 @@ describe("documentation versions", () => {
 		);
 	});
 
+	it("pins beta documentation to next and keeps its release line separate", () => {
+		expect(docsVersionSources[betaVersion.id].editBranch).toBe("next");
+		expect(docsVersionSources[betaVersion.id].commitSha).toMatch(
+			/^[0-9a-f]{40}$/,
+		);
+		expect(betaVersion.releaseLine).toBe("1.8");
+	});
+
+	it("resolves beta pages and scopes their links", () => {
+		expect(resolveVersionFromSlug(["beta", "plugins", "scim"])).toEqual({
+			version: betaVersion,
+			relSlug: ["plugins", "scim"],
+		});
+		expect(getVersionFromPathname("/docs/beta/plugins/scim")).toBe(betaVersion);
+		expect(getVersionFromPathname("/docs/beta-tutorial")).toBe(latestVersion);
+		expect(scopeDocsHref("/docs/plugins/scim", betaVersion)).toBe(
+			"/docs/beta/plugins/scim",
+		);
+		expect(scopeDocsHref("/docs/beta/plugins/scim", betaVersion)).toBe(
+			"/docs/beta/plugins/scim",
+		);
+		expect(scopeDocsHref("/docs/1.6/introduction", betaVersion)).toBe(
+			"/docs/1.6/introduction",
+		);
+	});
+
+	it("switches between beta and stable without losing the current page", () => {
+		expect(
+			getVersionTargetHref(
+				"/docs/beta/plugins/scim",
+				betaVersion,
+				latestVersion,
+				{ ...availability, latest: ["/docs/plugins/scim"] },
+			),
+		).toBe("/docs/plugins/scim");
+		expect(
+			getVersionTargetHref(
+				"/docs/plugins/scim",
+				latestVersion,
+				betaVersion,
+				availability,
+			),
+		).toBe("/docs/beta/plugins/scim");
+	});
+
 	it("resolves archived version slugs", () => {
 		expect(resolveVersionFromSlug(["1.6", "plugins", "scim"])).toEqual({
 			version: version16,

docs/lib/docs-versions.ts

@@ -18,6 +18,12 @@ export interface DocsVersionConfig {
 }
 
 export const docsVersions = [
+	{
+		label: "v1.8 (Beta)",
+		releaseLine: "1.8",
+		id: "beta",
+		badge: null,
+	},
 	{
 		label: "v1.7 (Latest)",
 		releaseLine: "1.7",
@@ -44,7 +50,7 @@ const docsRootPathPattern = /^\/docs\/?([?#].*)?$/;
 /**
  * The default (latest) version entry.
  */
-export const latestVersion = docsVersions[0];
+export const latestVersion = docsVersions[1];
 
 /**
  * Find a version config by its URL slug.

docs/lib/llm-text.test.ts

@@ -29,6 +29,7 @@ describe("LLM routes", () => {
 
 		expect(content).toContain("https://better-auth.com/docs/llms.txt");
 		expect(content).toContain("https://better-auth.com/docs/1.6/llms.txt");
+		expect(content).toContain("https://better-auth.com/docs/beta/llms.txt");
 		expect(content).toContain("https://mcp.better-auth.com/mcp");
 		expect(content).not.toContain("/llms.txt/docs/");
 	});
@@ -61,6 +62,9 @@ describe("LLM routes", () => {
 			"/docs/1.6/plugins/scim.md",
 		);
 		expect(getLegacyMarkdownTarget(["1.6"])).toBe("/docs/1.6/llms.txt");
+		expect(getLegacyMarkdownTarget(["beta", "plugins", "scim"])).toBe(
+			"/docs/beta/plugins/scim.md",
+		);
 		expect(getLegacyMarkdownTarget(["docs", "introduction.txt"])).toBeNull();
 	});
 

docs/lib/markdown-links.test.ts

@@ -2,7 +2,7 @@ import { describe, expect, it } from "vitest";
 import { docsVersions } from "./docs-versions";
 import { scopeMarkdownLinks } from "./markdown-links";
 
-const version16 = docsVersions[1];
+const version16 = docsVersions[2];
 
 describe("versioned Markdown links", () => {
 	it("scopes unversioned links without duplicating version prefixes", () => {

docs/lib/source.ts

@@ -1,7 +1,7 @@
 import { loader } from "fumadocs-core/source";
 import { lucideIconsPlugin } from "fumadocs-core/source/lucide-icons";
 import { toFumadocsSource } from "fumadocs-mdx/runtime/server";
-import { blogCollection, docs, docsV16 } from "@/.source/server";
+import { blogCollection, docs, docsBeta, docsV16 } from "@/.source/server";
 import type { DocsVersionId } from "./docs-versions";
 import { pageTreePlugin } from "./page-tree";
 
@@ -21,9 +21,17 @@ export const sourceV16 = loader({
 	plugins: docsPlugins,
 });
 
+export const sourceBeta = loader({
+	baseUrl: "/docs/beta",
+	source: docsBeta.toFumadocsSource(),
+	pageTree: { noRef: true },
+	plugins: docsPlugins,
+});
+
 const docsSources = {
 	latest: source,
 	"1.6": sourceV16,
+	beta: sourceBeta,
 } satisfies Record<DocsVersionId, typeof source>;
 
 export function getSourceFor(versionId: DocsVersionId) {

docs/scripts/sync-versions.ts

@@ -24,10 +24,21 @@ const releaseVersionsPath = join(
 	"docs",
 	"release-versions.json",
 );
+const localReleaseVersion = await readPackageVersion(
+	join(repositoryRoot, packagePath),
+);
+const localVersion = docsVersions.find((version) =>
+	localReleaseVersion.startsWith(`${version.releaseLine}.`),
+);
+if (!localVersion) {
+	throw new Error(
+		`No documentation version configured for ${localReleaseVersion}`,
+	);
+}
 const versionsToSync = docsVersions.flatMap((version) => {
 	const source = docsVersionSources[version.id];
-	if (source.commitSha === null) return [];
-	return [{ ...version, ...source, commitSha: source.commitSha }];
+	if (version.id === localVersion.id) return [];
+	return [{ ...version, ...source }];
 });
 
 function git(args: string[], cwd?: string) {
@@ -57,7 +68,7 @@ async function readPackageVersion(path: string) {
 }
 
 async function prepareWorktree(version: (typeof versionsToSync)[number]) {
-	const { commitSha } = version;
+	const revision = `refs/docs-versions/${version.id.replaceAll(".", "-")}`;
 	const checkoutDirectory = resolve(
 		tempRoot,
 		"worktrees",
@@ -71,7 +82,7 @@ async function prepareWorktree(version: (typeof versionsToSync)[number]) {
 		"--detach",
 		"--no-checkout",
 		checkoutDirectory,
-		commitSha,
+		revision,
 	]);
 	await git(["-C", checkoutDirectory, "sparse-checkout", "init", "--cone"]);
 	await git([
@@ -88,19 +99,22 @@ async function prepareWorktree(version: (typeof versionsToSync)[number]) {
 		"checkout",
 		"--quiet",
 		"--detach",
-		commitSha,
+		revision,
 	]);
-	return { checkoutDirectory, commitSha, version };
+	return { checkoutDirectory, version };
 }
 
 async function syncVersion({
 	checkoutDirectory,
-	commitSha,
 	version,
 }: Awaited<ReturnType<typeof prepareWorktree>>) {
 	const destination = join(docsRoot, "content", version.contentDirectory);
+	const sourceRevision =
+		checkoutDirectory === repositoryRoot
+			? "local"
+			: (version.commitSha?.slice(0, 9) ?? "HEAD");
 	console.log(
-		`[sync-versions] ${version.editBranch}@${commitSha.slice(0, 9)}:${remotePath} → ${destination}`,
+		`[sync-versions] ${version.editBranch}@${sourceRevision}:${remotePath} → ${destination}`,
 	);
 	const sourcePath = join(checkoutDirectory, remotePath);
 	try {
@@ -112,12 +126,17 @@ async function syncVersion({
 		);
 	}
 
-	await rm(destination, { recursive: true, force: true });
-	await cp(sourcePath, destination, { recursive: true });
-	await writeFile(join(destination, ".gitkeep"), "");
 	const releaseVersion = await readPackageVersion(
 		join(checkoutDirectory, packagePath),
 	);
+	if (!releaseVersion.startsWith(`${version.releaseLine}.`)) {
+		throw new Error(
+			`Invalid release version for ${version.id}: expected ${version.releaseLine}.x, received ${releaseVersion}`,
+		);
+	}
+	await rm(destination, { recursive: true, force: true });
+	await cp(sourcePath, destination, { recursive: true });
+	await writeFile(join(destination, ".gitkeep"), "");
 	return [version.id, releaseVersion] as const;
 }
 
@@ -137,11 +156,16 @@ try {
 		"origin",
 		...versionsToSync.map(
 			(version) =>
-				`+${version.commitSha}:refs/docs-versions/${version.id.replaceAll(".", "-")}`,
+				`+${version.commitSha ?? version.editBranch}:refs/docs-versions/${version.id.replaceAll(".", "-")}`,
 		),
 	]);
 
-	const worktrees = [];
+	const worktrees = [
+		{
+			checkoutDirectory: repositoryRoot,
+			version: { ...localVersion, ...docsVersionSources[localVersion.id] },
+		},
+	];
 	for (const version of versionsToSync) {
 		worktrees.push(await prepareWorktree(version));
 	}
@@ -155,17 +179,11 @@ try {
 			"One or more documentation versions failed to sync",
 		);
 	}
-	const latestVersion = docsVersions.find((version) => version.id === "latest");
-	if (!latestVersion) throw new Error("Missing latest documentation version");
-	const releaseVersions = Object.fromEntries([
-		[
-			latestVersion.id,
-			await readPackageVersion(join(repositoryRoot, packagePath)),
-		],
-		...results.flatMap((result) =>
+	const releaseVersions = Object.fromEntries(
+		results.flatMap((result) =>
 			result.status === "fulfilled" ? [result.value] : [],
 		),
-	]);
+	);
 	await writeFile(
 		releaseVersionsPath,
 		`${JSON.stringify(releaseVersions, null, 2)}\n`,

docs/source.config.ts

@@ -12,6 +12,12 @@ import {
 	remarkAutoTypeTable,
 } from "fumadocs-typescript";
 import * as z from "zod";
+import packageMetadata from "../packages/better-auth/package.json" with {
+	type: "json",
+};
+import { docsVersionSources } from "./lib/docs-version-sources";
+import type { DocsVersion } from "./lib/docs-versions";
+import { docsVersions } from "./lib/docs-versions";
 
 const docsPageSchema = pageSchema.extend({
 	sidebarBadge: z.string().min(1).optional(),
@@ -22,8 +28,16 @@ const processedMarkdownOptions = {
 	mdxAsPlaceholder: ["APIMethod"],
 } satisfies LLMsOptions;
 
+function getContentDirectory(version: DocsVersion) {
+	return packageMetadata.version.startsWith(`${version.releaseLine}.`)
+		? "./content/docs"
+		: `./content/${docsVersionSources[version.id].contentDirectory}`;
+}
+
+const [betaVersion, latestVersion, version16] = docsVersions;
+
 export const docs = defineDocs({
-	dir: "./content/docs",
+	dir: getContentDirectory(latestVersion),
 	docs: {
 		schema: docsPageSchema,
 		postprocess: {
@@ -34,7 +48,18 @@ export const docs = defineDocs({
 });
 
 export const docsV16 = defineDocs({
-	dir: "./content/_generated/docs/v1-6",
+	dir: getContentDirectory(version16),
+	docs: {
+		schema: docsPageSchema,
+		postprocess: {
+			includeProcessedMarkdown: processedMarkdownOptions,
+		},
+		async: true,
+	},
+});
+
+export const docsBeta = defineDocs({
+	dir: getContentDirectory(betaVersion),
 	docs: {
 		schema: docsPageSchema,
 		postprocess: {