docs(showcase): add 74 new showcase sites

website/src/data/__tests__/user.test.ts

@@ -7,6 +7,7 @@
 
 import fs from 'fs-extra';
 import path from 'path';
+import _ from 'lodash';
 import imageSize from 'image-size';
 import {Joi} from '@docusaurus/utils-validation';
 import {TagList, sortedUsers, type User} from '../users';
@@ -62,6 +63,7 @@ describe('users data', () => {
         // The preview should be jest/emptyModule
         preview: Joi.object({default: Joi.any()})
           .unknown(false)
+          .allow(null)
           .required()
           .messages({
             'object.base':
@@ -87,6 +89,65 @@ describe('users data', () => {
       );
     }
   });
+
+  it('does not contain duplicates', () => {
+    function normalizeUrl(url: string | null) {
+      if (url === null) {
+        return null;
+      }
+      if (!url.endsWith('/')) {
+        return `${url}/`;
+      }
+      return url;
+    }
+
+    function duplicatesBy(mapper: (user: User) => string | null) {
+      const grouped: {[key: string]: User[]} = _.groupBy(sortedUsers, (user) =>
+        mapper(user),
+      );
+      return Object.fromEntries(
+        Object.entries(grouped).filter((entry) => entry[1].length > 1),
+      );
+    }
+
+    let duplicatesLog = '';
+
+    const duplicatesByTitle = duplicatesBy((user) =>
+      user.title.trim().toLowerCase(),
+    );
+    Object.entries(duplicatesByTitle).forEach(([title, users]) => {
+      duplicatesLog += `Showcase site title '${title}' is used ${users.length} times! Duplicates are not allowed!\n`;
+    });
+
+    const duplicatesByDescription = duplicatesBy((user) =>
+      user.description.trim().toLowerCase(),
+    );
+    Object.entries(duplicatesByDescription).forEach(([description, users]) => {
+      duplicatesLog += `Showcase site description '${description}' is used ${users.length} times! Duplicates are not allowed!\n`;
+    });
+
+    const duplicatesByWebsite = duplicatesBy((user) =>
+      normalizeUrl(user.website),
+    );
+    Object.entries(duplicatesByWebsite).forEach(([website, users]) => {
+      duplicatesLog += `Showcase site website url '${website}' is used ${users.length} times! Duplicates are not allowed!\n`;
+    });
+
+    const duplicatesBySource = duplicatesBy((user) =>
+      normalizeUrl(user.source),
+    );
+    Object.entries(duplicatesBySource).forEach(([source, users]) => {
+      // source is allowed to be null for multiple sites
+      // "null", see Lodash groupBy issue: https://github.com/lodash/lodash/issues/3060
+      if (source && source !== 'null') {
+        duplicatesLog += `Showcase site source url '${source}' is used ${users.length} times! Duplicates are not allowed!\n`;
+      }
+    });
+
+    if (duplicatesLog) {
+      throw new Error(duplicatesLog);
+    }
+  });
 });
 
 describe('preview images', () => {