Removed :monaco_snippets in Vue/JS

In the course of making Monaco default for editing Snippets, we remove
te feature flag from the codebase. This commit removes it from Vue/JS
files

app/assets/javascripts/blob/utils.js

-/* global ace */
 import Editor from '~/editor/editor_lite';
 
 export function initEditorLite({ el, blobPath, blobContent }) {
   if (!el) {
     throw new Error(`"el" parameter is required to initialize Editor`);
   }
-  let editor;
-
-  if (window?.gon?.features?.monacoSnippets) {
-    editor = new Editor();
-    editor.createInstance({
-      el,
-      blobPath,
-      blobContent,
-    });
-  } else {
-    editor = ace.edit(el);
-  }
+  const editor = new Editor();
+  editor.createInstance({
+    el,
+    blobPath,
+    blobContent,
+  });
 
   return editor;
 }

app/assets/javascripts/snippet/snippet_bundle.js

@@ -3,18 +3,6 @@ import setupCollapsibleInputs from './collapsible_input';
 
 let editor;
 
-const initAce = () => {
-  const editorEl = document.getElementById('editor');
-  const form = document.querySelector('.snippet-form-holder form');
-  const content = document.querySelector('.snippet-file-content');
-
-  editor = initEditorLite({ el: editorEl });
-
-  form.addEventListener('submit', () => {
-    content.value = editor.getValue();
-  });
-};
-
 const initMonaco = () => {
   const editorEl = document.getElementById('editor');
   const contentEl = document.querySelector('.snippet-file-content');
@@ -36,15 +24,7 @@ const initMonaco = () => {
   });
 };
 
-export const initEditor = () => {
-  if (window?.gon?.features?.monacoSnippets) {
-    initMonaco();
-  } else {
-    initAce();
-  }
-  setupCollapsibleInputs();
-};
-
 export default () => {
-  initEditor();
+  initMonaco();
+  setupCollapsibleInputs();
 };

app/views/shared/snippets/_form.html.haml

-- if Feature.disabled?(:monaco_snippets)
-  - content_for :page_specific_javascripts do
-    = page_specific_javascript_tag('lib/ace.js')
-
 - if Feature.enabled?(:snippets_edit_vue)
   #js-snippet-edit.snippet-form{ data: {'project_path': @snippet.project&.full_path, 'snippet-gid': @snippet.new_record? ? '' : @snippet.to_global_id, 'markdown-preview-path': preview_markdown_path(parent), 'markdown-docs-path': help_page_path('user/markdown'), 'visibility-help-link': help_page_path("public_access/public_access") } }
 - else

changelogs/unreleased/215975-remove-monaco-snippets-flag.yml

+---
+title: Enable Monaco for editing Snippets by default
+merge_request: 30892
+author:
+type: added

lib/gitlab/gon_helper.rb

@@ -43,7 +43,6 @@ module Gitlab
       # Initialize gon.features with any flags that should be
       # made globally available to the frontend
       push_frontend_feature_flag(:snippets_vue, default_enabled: false)
-      push_frontend_feature_flag(:monaco_snippets, default_enabled: false)
       push_frontend_feature_flag(:monaco_blobs, default_enabled: false)
       push_frontend_feature_flag(:monaco_ci, default_enabled: false)
       push_frontend_feature_flag(:snippets_edit_vue, default_enabled: false)

spec/features/projects/snippets/create_snippet_spec.rb

@@ -5,7 +5,6 @@ require 'spec_helper'
 shared_examples_for 'snippet editor' do
   before do
     stub_feature_flags(snippets_edit_vue: false)
-    stub_feature_flags(monaco_snippets: flag)
   end
 
   def description_field
@@ -20,7 +19,7 @@ shared_examples_for 'snippet editor' do
     fill_in 'project_snippet_description', with: 'My Snippet **Description**'
 
     page.within('.file-editor') do
-      el = flag == true ? find('.inputarea') : find('.ace_text-input', visible: false)
+      el = find('.inputarea')
       el.send_keys 'Hello World!'
     end
   end
@@ -145,15 +144,5 @@ describe 'Projects > Snippets > Create Snippet', :js do
   let_it_be(:user) { create(:user) }
   let_it_be(:project) { create(:project, :public) }
 
-  context 'when using Monaco' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { true }
-    end
-  end
-
-  context 'when using ACE' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { false }
-    end
-  end
+  it_behaves_like "snippet editor"
 end

spec/features/snippets/spam_snippets_spec.rb

@@ -13,7 +13,6 @@ shared_examples_for 'snippet editor' do
     stub_feature_flags(allow_possible_spam: false)
     stub_feature_flags(snippets_vue: false)
     stub_feature_flags(snippets_edit_vue: false)
-    stub_feature_flags(monaco_snippets: flag)
     stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'false')
 
     Gitlab::CurrentSettings.update!(
@@ -35,7 +34,7 @@ shared_examples_for 'snippet editor' do
 
     find('#personal_snippet_visibility_level_20').set(true)
     page.within('.file-editor') do
-      el = flag == true ? find('.inputarea') : find('.ace_text-input', visible: false)
+      el = find('.inputarea')
       el.send_keys 'Hello World!'
     end
   end
@@ -126,15 +125,5 @@ end
 describe 'User creates snippet', :js do
   let_it_be(:user) { create(:user) }
 
-  context 'when using Monaco' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { true }
-    end
-  end
-
-  context 'when using ACE' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { false }
-    end
-  end
+  it_behaves_like "snippet editor"
 end

spec/features/snippets/user_creates_snippet_spec.rb

@@ -6,7 +6,6 @@ shared_examples_for 'snippet editor' do
   before do
     stub_feature_flags(snippets_vue: false)
     stub_feature_flags(snippets_edit_vue: false)
-    stub_feature_flags(monaco_snippets: flag)
     sign_in(user)
     visit new_snippet_path
   end
@@ -23,7 +22,7 @@ shared_examples_for 'snippet editor' do
     fill_in 'personal_snippet_description', with: 'My Snippet **Description**'
 
     page.within('.file-editor') do
-      el = flag == true ? find('.inputarea') : find('.ace_text-input', visible: false)
+      el = find('.inputarea')
       el.send_keys 'Hello World!'
     end
   end
@@ -136,7 +135,7 @@ shared_examples_for 'snippet editor' do
     fill_in 'personal_snippet_title', with: 'My Snippet Title'
     page.within('.file-editor') do
       find(:xpath, "//input[@id='personal_snippet_file_name']").set 'snippet+file+name'
-      el = flag == true ? find('.inputarea') : find('.ace_text-input', visible: false)
+      el = find('.inputarea')
       el.send_keys 'Hello World!'
     end
 
@@ -154,15 +153,5 @@ describe 'User creates snippet', :js do
 
   let_it_be(:user) { create(:user) }
 
-  context 'when using Monaco' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { true }
-    end
-  end
-
-  context 'when using ACE' do
-    it_behaves_like "snippet editor" do
-      let(:flag) { false }
-    end
-  end
+  it_behaves_like "snippet editor"
 end

spec/frontend/blob/utils_spec.js

@@ -8,11 +8,6 @@ jest.mock('~/editor/editor_lite', () => {
   });
 });
 
-const mockCreateAceInstance = jest.fn();
-global.ace = {
-  edit: mockCreateAceInstance,
-};
-
 describe('Blob utilities', () => {
   beforeEach(() => {
     Editor.mockClear();
@@ -29,21 +24,6 @@ describe('Blob utilities', () => {
     });
 
     describe('Monaco editor', () => {
-      let origProp;
-
-      beforeEach(() => {
-        origProp = window.gon;
-        window.gon = {
-          features: {
-            monacoSnippets: true,
-          },
-        };
-      });
-
-      afterEach(() => {
-        window.gon = origProp;
-      });
-
       it('initializes the Editor Lite', () => {
         utils.initEditorLite({ el: editorEl });
         expect(Editor).toHaveBeenCalled();
@@ -69,27 +49,5 @@ describe('Blob utilities', () => {
         ]);
       });
     });
-    describe('ACE editor', () => {
-      let origProp;
-
-      beforeEach(() => {
-        origProp = window.gon;
-        window.gon = {
-          features: {
-            monacoSnippets: false,
-          },
-        };
-      });
-
-      afterEach(() => {
-        window.gon = origProp;
-      });
-
-      it('does not initialize the Editor Lite', () => {
-        utils.initEditorLite({ el: editorEl });
-        expect(Editor).not.toHaveBeenCalled();
-        expect(mockCreateAceInstance).toHaveBeenCalledWith(editorEl);
-      });
-    });
   });
 });

spec/frontend/snippet/snippet_bundle_spec.js

 import Editor from '~/editor/editor_lite';
-import { initEditor } from '~/snippet/snippet_bundle';
+import initEditor from '~/snippet/snippet_bundle';
 import { setHTMLFixture } from 'helpers/fixtures';
 
 jest.mock('~/editor/editor_lite', () => jest.fn());
 
 describe('Snippet editor', () => {
-  describe('Monaco editor for Snippets', () => {
-    let oldGon;
-    let editorEl;
-    let contentEl;
-    let fileNameEl;
-    let form;
-
-    const mockName = 'foo.bar';
-    const mockContent = 'Foo Bar';
-    const updatedMockContent = 'New Foo Bar';
-
-    const mockEditor = {
-      createInstance: jest.fn(),
-      updateModelLanguage: jest.fn(),
-      getValue: jest.fn().mockReturnValueOnce(updatedMockContent),
-    };
-    Editor.mockImplementation(() => mockEditor);
-
-    function setUpFixture(name, content) {
-      setHTMLFixture(`
-        <div class="snippet-form-holder">
-          <form>
-            <input class="js-snippet-file-name" type="text" value="${name}">
-            <input class="snippet-file-content" type="hidden" value="${content}">
-            <pre id="editor"></pre>
-          </form>
-        </div>
-      `);
-    }
-
-    function bootstrap(name = '', content = '') {
-      setUpFixture(name, content);
-      editorEl = document.getElementById('editor');
-      contentEl = document.querySelector('.snippet-file-content');
-      fileNameEl = document.querySelector('.js-snippet-file-name');
-      form = document.querySelector('.snippet-form-holder form');
-
-      initEditor();
-    }
-
-    function createEvent(name) {
-      return new Event(name, {
-        view: window,
-        bubbles: true,
-        cancelable: true,
-      });
-    }
-
-    beforeEach(() => {
-      oldGon = window.gon;
-      window.gon = { features: { monacoSnippets: true } };
-      bootstrap(mockName, mockContent);
+  let editorEl;
+  let contentEl;
+  let fileNameEl;
+  let form;
+
+  const mockName = 'foo.bar';
+  const mockContent = 'Foo Bar';
+  const updatedMockContent = 'New Foo Bar';
+
+  const mockEditor = {
+    createInstance: jest.fn(),
+    updateModelLanguage: jest.fn(),
+    getValue: jest.fn().mockReturnValueOnce(updatedMockContent),
+  };
+  Editor.mockImplementation(() => mockEditor);
+
+  function setUpFixture(name, content) {
+    setHTMLFixture(`
+      <div class="snippet-form-holder">
+        <form>
+          <input class="js-snippet-file-name" type="text" value="${name}">
+          <input class="snippet-file-content" type="hidden" value="${content}">
+          <pre id="editor"></pre>
+        </form>
+      </div>
+    `);
+  }
+
+  function bootstrap(name = '', content = '') {
+    setUpFixture(name, content);
+    editorEl = document.getElementById('editor');
+    contentEl = document.querySelector('.snippet-file-content');
+    fileNameEl = document.querySelector('.js-snippet-file-name');
+    form = document.querySelector('.snippet-form-holder form');
+
+    initEditor();
+  }
+
+  function createEvent(name) {
+    return new Event(name, {
+      view: window,
+      bubbles: true,
+      cancelable: true,
     });
+  }
 
-    afterEach(() => {
-      window.gon = oldGon;
-    });
+  beforeEach(() => {
+    bootstrap(mockName, mockContent);
+  });
 
-    it('correctly initializes Editor', () => {
-      expect(mockEditor.createInstance).toHaveBeenCalledWith({
-        el: editorEl,
-        blobPath: mockName,
-        blobContent: mockContent,
-      });
+  it('correctly initializes Editor', () => {
+    expect(mockEditor.createInstance).toHaveBeenCalledWith({
+      el: editorEl,
+      blobPath: mockName,
+      blobContent: mockContent,
     });
+  });
 
-    it('listens to file name changes and updates syntax highlighting of code', () => {
-      expect(mockEditor.updateModelLanguage).not.toHaveBeenCalled();
+  it('listens to file name changes and updates syntax highlighting of code', () => {
+    expect(mockEditor.updateModelLanguage).not.toHaveBeenCalled();
 
-      const event = createEvent('change');
+    const event = createEvent('change');
 
-      fileNameEl.value = updatedMockContent;
-      fileNameEl.dispatchEvent(event);
+    fileNameEl.value = updatedMockContent;
+    fileNameEl.dispatchEvent(event);
 
-      expect(mockEditor.updateModelLanguage).toHaveBeenCalledWith(updatedMockContent);
-    });
+    expect(mockEditor.updateModelLanguage).toHaveBeenCalledWith(updatedMockContent);
+  });
 
-    it('listens to form submit event and populates the hidden field with most recent version of the content', () => {
-      expect(contentEl.value).toBe(mockContent);
+  it('listens to form submit event and populates the hidden field with most recent version of the content', () => {
+    expect(contentEl.value).toBe(mockContent);
 
-      const event = createEvent('submit');
+    const event = createEvent('submit');
 
-      form.dispatchEvent(event);
-      expect(contentEl.value).toBe(updatedMockContent);
-    });
+    form.dispatchEvent(event);
+    expect(contentEl.value).toBe(updatedMockContent);
   });
 });