FEATURE: add a global setting to support custom docs url path (#107)

* FEATURE: add a global setting to support custom docs url path

This commit adds a GlobalSetting `docs_path` to support custom docs url
path for sites that do not want docs page to live at `/docs` and have a
customized path.

* Fixed the route declaration

* Test and linting

* Update server.en.yml

* Fixed doc test

* Fixed linting.

* Testing qunit test fix

* Fixed tests

* Prettified tests

* Changed the implementation from SiteSetting to GlobalSetting instead.

* Fixed tests

* Cleanup

* Using Site instead of .js.erb to pass GlobalSetting.docs_url to the front end.

Also fixed front end tests

* Remove references to obsolete site setting

* remove unused fixture file

* Rename `docs_url` to `docs_path` and use camelCase in JavaScript

* Add serializer tests

Co-authored-by: Arpit Jalan <er.ajalan@gmail.com>

assets/javascripts/discourse/components/docs-topic-list.js

@@ -1,9 +1,11 @@
 import Component from "@ember/component";
 import { action } from "@ember/object";
 import discourseComputed from "discourse-common/utils/decorators";
+import { getDocs } from "../../lib/get-docs";
 
 export default Component.extend({
   classNames: "docs-topic-list",
+  urlPath: getDocs(),
 
   @discourseComputed("order")
   sortTitle(order) {

assets/javascripts/discourse/docs-route-map.js

@@ -1,5 +1,9 @@
+import { getDocs } from "../lib/get-docs";
+
 export default function () {
-  this.route("docs", { path: "/docs" }, function () {
+  const docsPath = getDocs();
+
+  this.route("docs", { path: "/" + docsPath }, function () {
     this.route("index", { path: "/" });
   });
 }

assets/javascripts/discourse/initializers/setup-docs.js

@@ -1,16 +1,20 @@
 import { withPluginApi } from "discourse/lib/plugin-api";
 import I18n from "I18n";
+import { getDocs } from "../../lib/get-docs";
 
 function initialize(api, container) {
   const siteSettings = container.lookup("site-settings:main");
+  const docsPath = getDocs();
 
-  api.addKeyboardShortcut("g e", "", { path: "/docs" });
+  api.addKeyboardShortcut("g e", "", {
+    path: "/" + docsPath,
+  });
 
   if (siteSettings.docs_add_to_top_menu) {
     api.addNavigationBarItem({
       name: "docs",
       displayName: I18n.t("docs.title"),
-      href: "/docs",
+      href: "/" + docsPath,
     });
   }
 }

assets/javascripts/discourse/models/docs.js

@@ -1,8 +1,10 @@
 import EmberObject from "@ember/object";
 import { ajax } from "discourse/lib/ajax";
 import Topic from "discourse/models/topic";
+import { getDocs } from "../../lib/get-docs";
 
 const Docs = EmberObject.extend({});
+const docsPath = getDocs();
 
 Docs.reopenClass({
   list(params) {
@@ -34,7 +36,7 @@ Docs.reopenClass({
       filters.push("track_visit=true");
     }
 
-    return ajax(`/docs.json?${filters.join("&")}`).then((data) => {
+    return ajax(`/${docsPath}.json?${filters.join("&")}`).then((data) => {
       data.topics.topic_list.topics = data.topics.topic_list.topics.map(
         (topic) => Topic.create(topic)
       );

assets/javascripts/discourse/templates/components/docs-topic-list.hbs

@@ -28,7 +28,7 @@
 
     <tbody class="topic-list-body">
       {{#each topics as |topic|}}
-        {{raw "docs-topic-list-item" topic=topic}}
+        {{raw "docs-topic-list-item" topic=topic urlPath=urlPath}}
       {{/each}}
     </tbody>
   </table>

assets/javascripts/discourse/templates/docs-topic-link.hbr

@@ -1 +1 @@
-<a href="/docs?topic={{topic.id}}" class="docs-topic-link">{{{topic.fancyTitle}}}</a>
+<a href="/{{urlPath}}?topic={{topic.id}}" class="docs-topic-link">{{{topic.fancyTitle}}}</a>

assets/javascripts/discourse/templates/docs-topic-list-item.hbr

@@ -2,7 +2,7 @@
   <td class="main-link topic-list-data">
     <span class="link-top-line">
       {{~raw "topic-status" topic=topic}}
-      {{~raw "docs-topic-link" topic=topic}}
+      {{~raw "docs-topic-link" topic=topic urlPath=urlPath}}
     </span>
     <span class="link-bottom-line">
       {{category-link topic.category}}

assets/javascripts/lib/get-docs.js

@@ -0,0 +1,5 @@
+import Site from "discourse/models/site";
+
+export function getDocs() {
+  return Site.currentProp("docs_path") || "docs";
+}

lib/docs/engine.rb

@@ -6,8 +6,8 @@ class Engine < ::Rails::Engine
 
     config.after_initialize do
       Discourse::Application.routes.append do
-        mount ::Docs::Engine, at: '/docs'
-        get '/knowledge-explorer', to: redirect("/docs")
+        mount ::Docs::Engine, at: "/#{GlobalSetting.docs_path}"
+        get '/knowledge-explorer', to: redirect("/#{GlobalSetting.docs_path}")
       end
     end
   end

lib/docs/query.rb

@@ -170,7 +170,7 @@ def load_more_url
         filters.push('page=1')
       end
 
-      "/docs.json?#{filters.join('&')}"
+      "/#{GlobalSetting.docs_path}.json?#{filters.join('&')}"
     end
   end
 end

plugin.rb

@@ -20,6 +20,8 @@
 load File.expand_path('lib/docs/engine.rb', __dir__)
 load File.expand_path('lib/docs/query.rb', __dir__)
 
+GlobalSetting.add_default :docs_path, "docs"
+
 after_initialize do
   require_dependency 'search'
 
@@ -55,6 +57,10 @@
     end
 
     any_user_agent[:disallow] ||= []
-    any_user_agent[:disallow] << "/docs/"
+    any_user_agent[:disallow] << "/#{GlobalSetting.docs_path}/"
+  end
+
+  add_to_serializer(:site, :docs_path) do
+    GlobalSetting.docs_path
   end
 end

spec/requests/docs_controller_spec.rb

@@ -13,12 +13,13 @@
     SiteSetting.docs_enabled = true
     SiteSetting.docs_categories = category.id.to_s
     SiteSetting.docs_tags = 'test'
+    GlobalSetting.stubs(:docs_path).returns('docs')
   end
 
   describe 'docs data' do
     context 'when any user' do
       it 'should return the right response' do
-        get '/docs.json'
+        get "/#{GlobalSetting.docs_path}.json"
 
         expect(response.status).to eq(200)
 
@@ -31,7 +32,7 @@
       end
 
       it 'should return a topic count' do
-        get '/docs.json'
+        get "/#{GlobalSetting.docs_path}.json"
 
         json = response.parsed_body
         topic_count = json['topic_count']
@@ -50,7 +51,7 @@
       end
 
       it 'should not show topics in private categories without permissions' do
-        get '/docs.json'
+        get "/#{GlobalSetting.docs_path}.json"
 
         json = JSON.parse(response.body)
         topics = json['topics']['topic_list']['topics']
@@ -62,7 +63,7 @@
         admin = Fabricate(:admin)
         sign_in(admin)
 
-        get '/docs.json'
+        get "/#{GlobalSetting.docs_path}.json"
 
         json = JSON.parse(response.body)
         topics = json['topics']['topic_list']['topics']
@@ -76,7 +77,7 @@
       fab!(:tag3) { Fabricate(:tag, topics: [topic], name: 'test3') }
 
       it 'should return a list filtered by tag' do
-        get '/docs.json?tags=test'
+        get "/#{GlobalSetting.docs_path}.json?tags=test"
 
         expect(response.status).to eq(200)
 
@@ -87,7 +88,7 @@
       end
 
       it 'should properly filter with more than two tags' do
-        get '/docs.json?tags=test%7ctest2%7ctest3'
+        get "/#{GlobalSetting.docs_path}.json?tags=test%7ctest2%7ctest3"
 
         expect(response.status).to eq(200)
 
@@ -109,7 +110,7 @@
       end
 
       it 'should return a list filtered by category' do
-        get "/docs.json?category=#{category2.id}"
+        get "/#{GlobalSetting.docs_path}.json?category=#{category2.id}"
 
         expect(response.status).to eq(200)
 
@@ -122,7 +123,7 @@
       end
 
       it 'ignores category filter when incorrect argument' do
-        get "/docs.json?category=hack"
+        get "/#{GlobalSetting.docs_path}.json?category=hack"
 
         expect(response.status).to eq(200)
 
@@ -139,7 +140,7 @@
     context 'when ordering results' do
       describe 'by title' do
         it 'should return the list ordered descending' do
-          get "/docs.json?order=title"
+          get "/#{GlobalSetting.docs_path}.json?order=title"
 
           expect(response.status).to eq(200)
 
@@ -151,7 +152,7 @@
         end
 
         it 'should return the list ordered ascending with an additional parameter' do
-          get "/docs.json?order=title&ascending=true"
+          get "/#{GlobalSetting.docs_path}.json?order=title&ascending=true"
 
           expect(response.status).to eq(200)
 
@@ -169,7 +170,7 @@
         end
 
         it 'should return the list ordered descending' do
-          get "/docs.json?order=activity"
+          get "/#{GlobalSetting.docs_path}.json?order=activity"
 
           expect(response.status).to eq(200)
 
@@ -181,7 +182,7 @@
         end
 
         it 'should return the list ordered ascending with an additional parameter' do
-          get "/docs.json?order=activity&ascending=true"
+          get "/#{GlobalSetting.docs_path}.json?order=activity&ascending=true"
 
           expect(response.status).to eq(200)
 
@@ -211,7 +212,7 @@
       end
 
       it 'should correctly filter topics' do
-        get "/docs.json?search=banana"
+        get "/#{GlobalSetting.docs_path}.json?search=banana"
 
         expect(response.status).to eq(200)
 
@@ -225,7 +226,7 @@
 
         expect(topics.size).to eq(2)
 
-        get "/docs.json?search=walk"
+        get "/#{GlobalSetting.docs_path}.json?search=walk"
 
         json = JSON.parse(response.body)
         topics = json['topics']['topic_list']['topics']
@@ -239,29 +240,29 @@
       let!(:non_ke_topic) { Fabricate(:topic) }
 
       it 'should correctly grab the topic' do
-        get "/docs.json?topic=#{topic.id}"
+        get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}"
 
         expect(response.parsed_body['topic']['id']).to eq(topic.id)
       end
 
       it 'should get topics matching a selected docs tag or category' do
-        get "/docs.json?topic=#{non_ke_topic.id}"
+        get "/#{GlobalSetting.docs_path}.json?topic=#{non_ke_topic.id}"
 
         expect(response.parsed_body['topic']).to be_blank
       end
 
       it 'should return a docs topic when only tags are added to settings' do
         SiteSetting.docs_categories = nil
 
-        get "/docs.json?topic=#{topic.id}"
+        get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}"
 
         expect(response.parsed_body['topic']['id']).to eq(topic.id)
       end
 
       it 'should return a docs topic when only categories are added to settings' do
         SiteSetting.docs_tags = nil
 
-        get "/docs.json?topic=#{topic.id}"
+        get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}"
 
         expect(response.parsed_body['topic']['id']).to eq(topic.id)
       end
@@ -270,19 +271,19 @@
         admin = Fabricate(:admin)
         sign_in(admin)
         expect do
-          get "/docs.json?topic=#{topic.id}"
+          get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}"
         end.to change { TopicViewItem.count }.by(1)
       end
 
       it 'should create TopicUser if authenticated' do
         expect do
-          get "/docs.json?topic=#{topic.id}&track_visit=true"
+          get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}&track_visit=true"
         end.not_to change { TopicUser.count }
 
         admin = Fabricate(:admin)
         sign_in(admin)
         expect do
-          get "/docs.json?topic=#{topic.id}&track_visit=true"
+          get "/#{GlobalSetting.docs_path}.json?topic=#{topic.id}&track_visit=true"
         end.to change { TopicUser.count }.by(1)
       end
     end

spec/requests/robots_txt_controller_spec.rb

@@ -5,12 +5,13 @@
 describe RobotsTxtController do
   before do
     SiteSetting.docs_enabled = true
+    GlobalSetting.stubs(:docs_path).returns('docs')
   end
 
   it 'adds /docs/ to robots.txt' do
     get '/robots.txt'
 
     expect(response.body).to include('User-agent: *')
-    expect(response.body).to include('Disallow: /docs/')
+    expect(response.body).to include("Disallow: /#{GlobalSetting.docs_path}/")
   end
 end

spec/serializers/site_serializer_spec.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe SiteSerializer do
+  fab!(:user)  { Fabricate(:user) }
+  let(:guardian) { Guardian.new(user) }
+
+  before do
+    SiteSetting.docs_enabled = true
+    GlobalSetting.stubs(:docs_path).returns('docs')
+  end
+
+  it 'returns correct default value' do
+    data = described_class.new(Site.new(guardian), scope: guardian, root: false).as_json
+
+    expect(data[:docs_path]).to eq("docs")
+  end
+
+  it 'returns custom path based on global setting' do
+    GlobalSetting.stubs(:docs_path).returns('custom_path')
+    data = described_class.new(Site.new(guardian), scope: guardian, root: false).as_json
+
+    expect(data[:docs_path]).to eq("custom_path")
+  end
+end