feat: ja doc home (#553)

* feat: ja doc home

* chore: filter ja dochome in normal docs

* test: use preview docs

* test: use ja preview docs

* test: ja doc home

* test: ja doc home

* fix: docs home url

* tweak: use ja/master/_docHome as the source

* tweak: hide notice in ja home

Author: shhdgit

gatsby/create-pages.ts

@@ -36,7 +36,9 @@ export const createDocs = async ({
       allMdx(
         filter: {
           fileAbsolutePath: { regex: "/^(?!.*TOC).*$/" }
-          slug: { nin: ["en/tidb/_docHome", "zh/tidb/_docHome"] }
+          slug: {
+            nin: ["en/tidb/_docHome", "zh/tidb/_docHome", "ja/tidb/_docHome"]
+          }
           frontmatter: { draft: { ne: true } }
         }
       ) {
@@ -251,7 +253,7 @@ export const createDocHome = async ({
     const path = generateDocHomeUrl(name, pathConfig);
     const navUrl = generateNav(pathConfig);
 
-    const locale = [Locale.en, Locale.zh];
+    const locale = [Locale.en, Locale.zh, Locale.ja];
 
     createPage({
       path,
@@ -263,6 +265,7 @@ export const createDocHome = async ({
         // use for edit in github
         filePath,
         navUrl,
+        pageUrl: path,
         availIn: {
           locale,
           version: [],

src/components/Layout/MDXContent.tsx

@@ -77,7 +77,7 @@ export default function MDXContent(props: {
         {buildType !== "archive" && (
           <CustomNotice name={name} pathConfig={pathConfig} availIn={availIn} />
         )}
-        {language === "ja" && (
+        {language === "ja" && pageType !== "home" && (
           <MachineTranslationNotice
             name={name}
             pathConfig={pathConfig}

src/shared/utils/index.ts

@@ -36,7 +36,7 @@ import {
 export function generateDocsHomeUrl(lang?: string) {
   switch (lang) {
     case "ja":
-      return "/ja/tidbcloud";
+      return "/ja/";
     case "zh":
       return "/zh/";
     case "en":