autogenerated sidebar poc working

packages/docusaurus-1.x/lib/core/BlogPostLayout.js

@@ -30,7 +30,7 @@ class BlogPostLayout extends React.Component {
 
   renderSocialButtons() {
     const post = this.props.metadata;
-    post.path = utils.getPath(post.path, this.props.config.cleanUrl);
+    post.dirPath = utils.getPath(post.path, this.props.config.cleanUrl);
 
     const fbComment = this.props.config.facebookAppId &&
       this.props.config.facebookComments && (
@@ -93,7 +93,7 @@ class BlogPostLayout extends React.Component {
   render() {
     const hasOnPageNav = this.props.config.onPageNav === 'separate';
     const post = this.props.metadata;
-    post.path = utils.getPath(post.path, this.props.config.cleanUrl);
+    post.dirPath = utils.getPath(post.path, this.props.config.cleanUrl);
     const blogSidebarTitleConfig = this.props.config.blogSidebarTitle || {};
     return (
       <Site

packages/docusaurus-plugin-content-docs/src/__tests__/numberPrefix.test.ts

@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+import {stripNumberPrefix} from '../numberPrefix';
+
+describe('stripNumberPrefix', () => {
+  test('should strip number prefix if present', () => {
+    expect(stripNumberPrefix('1-My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('01-My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001-My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001 - My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001      -    My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('999      -        My Doc')).toEqual('My Doc');
+    //
+    expect(stripNumberPrefix('1---My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('01---My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001---My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001 --- My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001      ---    My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('999      ---        My Doc')).toEqual('My Doc');
+    //
+    expect(stripNumberPrefix('1___My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('01___My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001___My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001 ___ My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001      ___    My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('999      ___        My Doc')).toEqual('My Doc');
+    //
+    expect(stripNumberPrefix('1.My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('01.My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001.My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001 . My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('001      .    My Doc')).toEqual('My Doc');
+    expect(stripNumberPrefix('999      .       My Doc')).toEqual('My Doc');
+  });
+
+  test('should not strip number prefix if pattern does not match', () => {
+    const badPatterns = [
+      'a1-My Doc',
+      'My Doc-000',
+      '00abc01-My Doc',
+      'My 001- Doc',
+      'My -001 Doc',
+    ];
+
+    badPatterns.forEach((badPattern) => {
+      expect(stripNumberPrefix(badPattern)).toEqual(badPattern);
+    });
+  });
+});

packages/docusaurus-plugin-content-docs/src/docs.ts

@@ -30,6 +30,7 @@ import getSlug from './slug';
 import {CURRENT_VERSION_NAME} from './constants';
 import globby from 'globby';
 import {getDocsDirPaths} from './versions';
+import {stripNumberPrefix} from './numberPrefix';
 
 type LastUpdateOptions = Pick<
   PluginOptions,
@@ -115,9 +116,15 @@ export function processDocMetadata({
   const {homePageId} = options;
   const {siteDir, i18n} = context;
 
-  // ex: api/myDoc -> api
+  // ex: api/plugins/myDoc -> api/plugins
   // ex: myDoc -> .
-  const docsFileDirName = path.dirname(source);
+  const sourceDirName = path.dirname(source);
+  // ex: api/plugins/myDoc -> myDoc
+  // ex: myDoc -> myDoc
+  const sourceFileNameWithoutExtension = path.basename(
+    source,
+    path.extname(source),
+  );
 
   const {frontMatter = {}, excerpt} = parseMarkdownString(content, source);
   const {
@@ -126,7 +133,7 @@ export function processDocMetadata({
   } = frontMatter;
 
   const baseID: string =
-    frontMatter.id || path.basename(source, path.extname(source));
+    frontMatter.id || stripNumberPrefix(sourceFileNameWithoutExtension);
   if (baseID.includes('/')) {
     throw new Error(`Document id [${baseID}] cannot include "/".`);
   }
@@ -141,7 +148,7 @@ export function processDocMetadata({
 
   // TODO legacy retrocompatibility
   // I think it's bad to affect the frontmatter id with the dirname
-  const dirNameIdPart = docsFileDirName === '.' ? '' : `${docsFileDirName}/`;
+  const dirNameIdPart = sourceDirName === '.' ? '' : `${sourceDirName}/`;
 
   // TODO legacy composite id, requires a breaking change to modify this
   const id = `${versionIdPart}${dirNameIdPart}${baseID}`;
@@ -160,7 +167,7 @@ export function processDocMetadata({
     ? '/'
     : getSlug({
         baseID,
-        dirName: docsFileDirName,
+        dirName: sourceDirName,
         frontmatterSlug: frontMatter.slug,
       });
 
@@ -207,6 +214,7 @@ export function processDocMetadata({
     title,
     description,
     source: aliasedSitePath(filePath, siteDir),
+    sourceDirName,
     slug: docSlug,
     permalink,
     editUrl: customEditURL !== undefined ? customEditURL : getDocEditUrl(),

packages/docusaurus-plugin-content-docs/src/numberPrefix.ts

@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+export function stripNumberPrefix(str: string) {
+  const numberPrefixPattern = /(?:^(\d)+(\s)*([-_.])+(\s)*)(?<suffix>.*)/;
+  const result = numberPrefixPattern.exec(str);
+  return result?.groups?.suffix ?? str;
+}

packages/docusaurus-plugin-content-docs/src/sidebars.ts

@@ -22,9 +22,18 @@ import {
   DocMetadataBase,
   SidebarItemAutogenerated,
 } from './types';
-import {mapValues, flatten, flatMap, difference} from 'lodash';
-import {getElementsAround} from '@docusaurus/utils';
+import {
+  mapValues,
+  flatten,
+  flatMap,
+  difference,
+  sortBy,
+  take,
+  last,
+} from 'lodash';
+import {addTrailingSlash, getElementsAround} from '@docusaurus/utils';
 import combinePromises from 'combine-promises';
+import {stripNumberPrefix} from './numberPrefix';
 
 type SidebarItemCategoryJSON = SidebarItemBase & {
   type: 'category';
@@ -35,7 +44,7 @@ type SidebarItemCategoryJSON = SidebarItemBase & {
 
 type SidebarItemAutogeneratedJSON = {
   type: 'autogenerated';
-  path: string;
+  dirPath: string;
 };
 
 type SidebarItemJSON =
@@ -130,10 +139,17 @@ function assertIsCategory(
 function assertIsAutogenerated(
   item: Record<string, unknown>,
 ): asserts item is SidebarItemAutogeneratedJSON {
-  assertItem(item, ['path']);
-  if (typeof item.path !== 'string') {
+  assertItem(item, ['dirPath']);
+  if (typeof item.dirPath !== 'string') {
     throw new Error(
-      `Error loading ${JSON.stringify(item)}. "path" must be a string.`,
+      `Error loading ${JSON.stringify(item)}. "dirPath" must be a string.`,
+    );
+  }
+  if (item.dirPath.startsWith('/') || item.dirPath.endsWith('/')) {
+    throw new Error(
+      `Error loading ${JSON.stringify(
+        item,
+      )}. "dirPath" must be a dir path relative to the docs folder root, and should not start or end with /`,
     );
   }
 }
@@ -251,28 +267,140 @@ export function loadSidebars(sidebarFilePath: string): UnprocessedSidebars {
   return normalizeSidebars(sidebarJson);
 }
 
-export async function processSidebar(
-  unprocessedSidebar: UnprocessedSidebar,
-  _docs: DocMetadataBase[],
-): Promise<Sidebar> {
-  async function transformAutogeneratedItem(
-    _item: SidebarItemAutogenerated,
-  ): Promise<SidebarItem[]> {
-    // TODO temp: perform real sidebars processing here!
-    return [
-      {
-        type: 'link',
-        href: 'https://docusaurus.io',
-        label: 'DOCUSAURUS_TEST 1',
-      },
-      {
-        type: 'link',
-        href: 'https://docusaurus.io',
-        label: 'DOCUSAURUS_TEST 2',
-      },
-    ];
+async function transformAutogeneratedSidebarItem(
+  autogeneratedItem: SidebarItemAutogenerated,
+  allDocs: DocMetadataBase[],
+): Promise<SidebarItem[]> {
+  // Doc at the root of the autogenerated sidebar slice
+  function isRootDoc(doc: DocMetadataBase) {
+    return doc.sourceDirName === autogeneratedItem.dirPath;
   }
 
+  // Doc inside a subfolder of the autogenerated sidebar slice
+  const categoryDirNameSuffix = addTrailingSlash(autogeneratedItem.dirPath);
+  function isCategoryDoc(doc: DocMetadataBase) {
+    // "api/plugins" startsWith "api/" (but "api2/" docs are excluded)
+    return doc.sourceDirName.startsWith(categoryDirNameSuffix);
+  }
+
+  const docsUnsorted: DocMetadataBase[] = allDocs.filter(
+    (doc) => isRootDoc(doc) || isCategoryDoc(doc),
+  );
+  // Sort by folder+filename at once
+  const docs = sortBy(docsUnsorted, (d) => d.source);
+
+  console.log(
+    'autogenDocsSorted',
+    docs.map((d) => ({
+      source: d.source,
+      dir: d.sourceDirName,
+      permalin: d.permalink,
+    })),
+  );
+
+  function createDocSidebarItem(doc: DocMetadataBase): SidebarItemDoc {
+    return {
+      type: 'doc',
+      id: doc.id,
+      ...(doc.frontMatter.sidebar_label && {
+        label: doc.frontMatter.sidebar_label,
+      }),
+    };
+  }
+
+  async function createCategorySidebarItem({
+    dirName,
+  }: {
+    dirName: string;
+  }): Promise<SidebarItemCategory> {
+    // TODO read metadata file from the directory for additional config?
+    return {
+      type: 'category',
+      label: stripNumberPrefix(dirName),
+      items: [],
+      collapsed: true, // TODO use default value
+    };
+  }
+
+  // Not sure how to simplify this algorithm :/
+  async function autogenerateSidebarItems(): Promise<SidebarItem[]> {
+    const BreadcrumbSeparator = '/';
+
+    const sidebarItems: SidebarItem[] = []; // mutable result
+
+    const categoriesByBreadcrumb: Record<string, SidebarItemCategory> = {}; // mutable cache of categories already created
+
+    async function getOrCreateCategoriesForBreadcrumb(
+      breadcrumb: string[],
+    ): Promise<SidebarItemCategory | null> {
+      if (breadcrumb.length === 0) {
+        return null;
+      }
+      const parentBreadcrumb = take(breadcrumb, breadcrumb.length - 1);
+      const lastBreadcrumbElement = last(breadcrumb)!;
+      const parentCategory = await getOrCreateCategoriesForBreadcrumb(
+        parentBreadcrumb,
+      );
+      const existingCategory =
+        categoriesByBreadcrumb[breadcrumb.join(BreadcrumbSeparator)];
+
+      if (existingCategory) {
+        return existingCategory;
+      } else {
+        const newCategory = await createCategorySidebarItem({
+          dirName: lastBreadcrumbElement,
+        });
+        if (parentCategory) {
+          parentCategory.items.push(newCategory);
+        } else {
+          sidebarItems.push(newCategory);
+        }
+        categoriesByBreadcrumb[
+          breadcrumb.join(BreadcrumbSeparator)
+        ] = newCategory;
+        return newCategory;
+      }
+    }
+
+    // Get the category breadcrumb of a doc (relative to the dir of the autogenerated sidebar item)
+    function getBreadcrumb(doc: DocMetadataBase): string[] {
+      return isCategoryDoc(doc)
+        ? doc.sourceDirName
+            .replace(categoryDirNameSuffix, '')
+            .split(BreadcrumbSeparator)
+        : [];
+    }
+
+    async function handleDocItem(doc: DocMetadataBase): Promise<void> {
+      const breadcrumb = getBreadcrumb(doc);
+      const category = await getOrCreateCategoriesForBreadcrumb(breadcrumb);
+
+      const docSidebarItem = createDocSidebarItem(doc);
+      if (category) {
+        category.items.push(docSidebarItem);
+      } else {
+        sidebarItems.push(docSidebarItem);
+      }
+    }
+
+    // async process made sequential on purpose! order matters
+    for (const doc of docs) {
+      // eslint-disable-next-line no-await-in-loop
+      await handleDocItem(doc);
+    }
+
+    console.log({sidebarItems});
+
+    return sidebarItems;
+  }
+
+  return autogenerateSidebarItems();
+}
+
+export async function processSidebar(
+  unprocessedSidebar: UnprocessedSidebar,
+  allDocs: DocMetadataBase[],
+): Promise<Sidebar> {
   async function processRecursive(
     item: UnprocessedSidebarItem,
   ): Promise<SidebarItem[]> {
@@ -285,13 +413,14 @@ export async function processSidebar(
       ];
     }
     if (item.type === 'autogenerated') {
-      return transformAutogeneratedItem(item);
+      return transformAutogeneratedSidebarItem(item, allDocs);
     }
     return [item];
   }
 
   return (await Promise.all(unprocessedSidebar.map(processRecursive))).flat();
 }
+
 export async function processSidebars(
   unprocessedSidebars: UnprocessedSidebars,
   docs: DocMetadataBase[],

packages/docusaurus-plugin-content-docs/src/types.ts

@@ -110,7 +110,7 @@ export type SidebarItemCategory = SidebarItemBase & {
 
 export type SidebarItemAutogenerated = {
   type: 'autogenerated';
-  path: string;
+  dirPath: string;
 };
 
 export type UnprocessedSidebarItemCategory = SidebarItemBase & {
@@ -162,6 +162,7 @@ export type DocMetadataBase = LastUpdateData & {
   title: string;
   description: string;
   source: string;
+  sourceDirName: string; // relative to the docs folder (can be ".")
   slug: string;
   permalink: string;
   // eslint-disable-next-line camelcase

website/docs/autogenerated-folder/000-My First Category/001- Some Subfolder/Subfolder Doc.md

@@ -0,0 +1 @@
+This doc is in a subfolder

website/sidebars.js

@@ -9,7 +9,7 @@ module.exports = {
   docs: [
     {
       type: 'autogenerated',
-      path: 'autogenerated-folder',
+      dirPath: 'autogenerated-folder',
     },
     {
       type: 'category',