From 6e8acb12b040a040b5e633468cc98fe59f40071d Mon Sep 17 00:00:00 2001
From: Bartosz Kaszubowski <gosimek@gmail.com>
Date: Sun, 5 Apr 2020 11:36:01 +0200
Subject: [PATCH] refactor(v2): replace Lodash with single methods packages in
 core

---
 packages/docusaurus/package.json                   |  4 +++-
 packages/docusaurus/src/server/config.ts           |  4 ++--
 .../docusaurus/src/server/html-tags/htmlTags.ts    |  4 ++--
 packages/docusaurus/src/server/routes.ts           | 14 ++++++--------
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/packages/docusaurus/package.json b/packages/docusaurus/package.json
index f81d1e9fb2a6..e659101a16ea 100644
--- a/packages/docusaurus/package.json
+++ b/packages/docusaurus/package.json
@@ -60,7 +60,9 @@
     "html-tags": "^3.1.0",
     "html-webpack-plugin": "^4.0.4",
     "import-fresh": "^3.2.1",
-    "lodash": "^4.17.15",
+    "lodash.has": "^4.5.2",
+    "lodash.isplainobject": "^4.0.6",
+    "lodash.isstring": "^4.0.1",
     "mini-css-extract-plugin": "^0.8.0",
     "nprogress": "^0.2.0",
     "null-loader": "^3.0.0",
diff --git a/packages/docusaurus/src/server/config.ts b/packages/docusaurus/src/server/config.ts
index ab631f6b96d9..309f0b9c9337 100644
--- a/packages/docusaurus/src/server/config.ts
+++ b/packages/docusaurus/src/server/config.ts
@@ -7,7 +7,7 @@
 
 import fs from 'fs-extra';
 import importFresh from 'import-fresh';
-import _ from 'lodash';
+import has from 'lodash.has';
 import path from 'path';
 import {CONFIG_FILE_NAME} from '../constants';
 import {DocusaurusConfig, PluginConfig} from '@docusaurus/types';
@@ -57,7 +57,7 @@ export function loadConfig(siteDir: string): DocusaurusConfig {
 
   const loadedConfig = importFresh(configPath) as Partial<DocusaurusConfig>;
   const missingFields = REQUIRED_FIELDS.filter(
-    field => !_.has(loadedConfig, field),
+    field => !has(loadedConfig, field),
   );
 
   if (missingFields.length > 0) {
diff --git a/packages/docusaurus/src/server/html-tags/htmlTags.ts b/packages/docusaurus/src/server/html-tags/htmlTags.ts
index 87357d1e726d..fc0b33571133 100644
--- a/packages/docusaurus/src/server/html-tags/htmlTags.ts
+++ b/packages/docusaurus/src/server/html-tags/htmlTags.ts
@@ -5,13 +5,13 @@
  * LICENSE file in the root directory of this source tree.
  */
 
-import _ from 'lodash';
+import isPlainObject from 'lodash.isplainobject';
 import {HtmlTagObject} from '@docusaurus/types';
 import htmlTags from 'html-tags';
 import voidHtmlTags from 'html-tags/void';
 
 function assertIsHtmlTagObject(val: any): asserts val is HtmlTagObject {
-  if (!_.isPlainObject(val)) {
+  if (!isPlainObject(val)) {
     throw new Error(`"${val}" is not a valid HTML tag object`);
   }
   if (typeof val.tagName !== 'string') {
diff --git a/packages/docusaurus/src/server/routes.ts b/packages/docusaurus/src/server/routes.ts
index 1e3586c6d1fb..46497b9053ee 100644
--- a/packages/docusaurus/src/server/routes.ts
+++ b/packages/docusaurus/src/server/routes.ts
@@ -6,7 +6,9 @@
  */
 
 import {genChunkName, normalizeUrl} from '@docusaurus/utils';
-import _ from 'lodash';
+import has from 'lodash.has';
+import isPlainObject from 'lodash.isplainobject';
+import isString from 'lodash.isstring';
 import {stringify} from 'querystring';
 import {
   ChunkRegistry,
@@ -17,14 +19,10 @@ import {
 } from '@docusaurus/types';
 
 function isModule(value: any): value is Module {
-  if (_.isString(value)) {
+  if (isString(value)) {
     return true;
   }
-  if (
-    _.isPlainObject(value) &&
-    _.has(value, '__import') &&
-    _.has(value, 'path')
-  ) {
+  if (isPlainObject(value) && has(value, '__import') && has(value, 'path')) {
     return true;
   }
   return false;
@@ -64,7 +62,7 @@ export async function loadRoutes(
       exact,
     } = routeConfig;
 
-    if (!_.isString(routePath) || !component) {
+    if (!isString(routePath) || !component) {
       throw new Error(
         `Invalid routeConfig (Path must be a string and component is required) \n${JSON.stringify(
           routeConfig,