From 69ec1e821599f6b83d64047b85463149e686e076 Mon Sep 17 00:00:00 2001
From: Pavel Grinchenko <psdcoder@gmail.com>
Date: Thu, 19 Mar 2020 14:23:50 +0300
Subject: [PATCH] Allow to set empty slug in sidebar.json

---
 src/utils/sidebar.js | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/utils/sidebar.js b/src/utils/sidebar.js
index 67456ebf65..b899541843 100644
--- a/src/utils/sidebar.js
+++ b/src/utils/sidebar.js
@@ -21,14 +21,14 @@
 const startCase = require('lodash.startcase')
 const sidebar = require('../../content/docs/sidebar.json')
 
-const PATH_ROOT = '/doc/'
+const PATH_ROOT = '/doc'
 const FILE_ROOT = '/docs/'
 const FILE_EXTENSION = '.md'
 
 function validateRawItem({ slug, source, children }) {
   const isSourceDisabled = source === false
 
-  if (!slug) {
+  if (typeof slug !== 'string') {
     throw Error("'slug' field is required in objects in sidebar.json")
   }
 
@@ -81,7 +81,7 @@ function normalizeItem({ rawItem, parentPath, resultRef, prevRef }) {
   const sourcePath = FILE_ROOT + parentPath + sourceFileName
 
   return {
-    path: PATH_ROOT + parentPath + slug,
+    path: PATH_ROOT + (parentPath || slug ? '/' : '') + parentPath + slug,
     source: source === false ? false : sourcePath,
     label: label ? label : startCase(slug),
     tutorials: tutorials || {},
@@ -152,7 +152,7 @@ function getFirstPage() {
 
 function getItemByPath(path) {
   const normalizedPath = path.replace(/\/$/, '')
-  const isRoot = normalizedPath === PATH_ROOT.slice(0, -1)
+  const isRoot = normalizedPath === PATH_ROOT
   const item = isRoot
     ? normalizedSidebar[0]
     : findItemByField(normalizedSidebar, 'path', normalizedPath)
@@ -173,10 +173,14 @@ function getPathWithSoruce(path) {
 }
 
 function getParentsListFromPath(path) {
-  let currentPath = PATH_ROOT.slice(0, -1)
+  let currentPath = PATH_ROOT
+
+  if (path === PATH_ROOT) {
+    return [PATH_ROOT]
+  }
 
   return path
-    .replace(PATH_ROOT, '')
+    .replace(`${PATH_ROOT}/`, '')
     .split('/')
     .map(part => {
       const path = `${currentPath}/${part}`