Style the CI Lint link in the pipeline page error as a link

app/assets/javascripts/pipeline_editor/components/pipeline_editor_tabs.vue

@@ -3,6 +3,7 @@ import { GlAlert, GlLoadingIcon, GlTabs } from '@gitlab/ui';
 import { s__ } from '~/locale';
 import PipelineGraph from '~/pipelines/components/pipeline_graph/pipeline_graph.vue';
 import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
+import { getParameterValues, setUrlParams, updateHistory } from '~/lib/utils/url_utility';
 import {
   CREATE_TAB,
   EDITOR_APP_STATUS_EMPTY,
@@ -12,6 +13,8 @@ import {
   EDITOR_APP_STATUS_VALID,
   LINT_TAB,
   MERGED_TAB,
+  TAB_QUERY_PARAM,
+  TABS_INDEX,
   VISUALIZE_TAB,
 } from '../constants';
 import getAppStatus from '../graphql/queries/client/app_status.graphql';
@@ -42,6 +45,9 @@ export default {
   errorTexts: {
     loadMergedYaml: s__('Pipelines|Could not load merged YAML content'),
   },
+  query: {
+    TAB_QUERY_PARAM,
+  },
   tabConstants: {
     CREATE_TAB,
     LINT_TAB,
@@ -98,15 +104,38 @@ export default {
       return this.appStatus === EDITOR_APP_STATUS_LOADING;
     },
   },
+  created() {
+    const [tabQueryParam] = getParameterValues(TAB_QUERY_PARAM);
+
+    if (tabQueryParam && TABS_INDEX[tabQueryParam]) {
+      this.setDefaultTab(tabQueryParam);
+    }
+  },
   methods: {
     setCurrentTab(tabName) {
       this.$emit('set-current-tab', tabName);
     },
+    setDefaultTab(tabName) {
+      // We associate tab name with the index so that we can use tab name
+      // in other part of the app and load the corresponding tab closer to the
+      // actual component using a hash that binds the name to the indexes.
+      // This also means that if we ever changed tab order, we would justs need to
+      // update `TABS_INDEX` hash instead of all the instances in the app
+      // where we used the individual indexes
+      const newUrl = setUrlParams({ [TAB_QUERY_PARAM]: TABS_INDEX[tabName] });
+
+      this.setCurrentTab(tabName);
+      updateHistory({ url: newUrl, title: document.title, replace: true });
+    },
   },
 };
 </script>
 <template>
-  <gl-tabs class="file-editor gl-mb-3">
+  <gl-tabs
+    class="file-editor gl-mb-3"
+    :query-param-name="$options.query.TAB_QUERY_PARAM"
+    sync-active-tab-with-query-params
+  >
     <editor-tab
       class="gl-mb-3"
       :title="$options.i18n.tabEdit"

app/assets/javascripts/pipeline_editor/constants.js

@@ -22,7 +22,14 @@ export const LINT_TAB = 'LINT_TAB';
 export const MERGED_TAB = 'MERGED_TAB';
 export const VISUALIZE_TAB = 'VISUALIZE_TAB';
 
+export const TABS_INDEX = {
+  [CREATE_TAB]: '0',
+  [VISUALIZE_TAB]: '1',
+  [LINT_TAB]: '2',
+  [MERGED_TAB]: '3',
+};
 export const TABS_WITH_COMMIT_FORM = [CREATE_TAB, LINT_TAB, VISUALIZE_TAB];
+export const TAB_QUERY_PARAM = 'tab';
 
 export const COMMIT_ACTION_CREATE = 'CREATE';
 export const COMMIT_ACTION_UPDATE = 'UPDATE';

app/assets/javascripts/pipeline_editor/pipeline_editor_home.vue

@@ -4,7 +4,7 @@ import PipelineEditorDrawer from './components/drawer/pipeline_editor_drawer.vue
 import PipelineEditorFileNav from './components/file_nav/pipeline_editor_file_nav.vue';
 import PipelineEditorHeader from './components/header/pipeline_editor_header.vue';
 import PipelineEditorTabs from './components/pipeline_editor_tabs.vue';
-import { TABS_WITH_COMMIT_FORM, CREATE_TAB } from './constants';
+import { CREATE_TAB, TABS_WITH_COMMIT_FORM } from './constants';
 
 export default {
   components: {

app/views/projects/pipelines/show.html.haml

@@ -22,8 +22,8 @@
       %ul
         - @pipeline.yaml_errors.split(",").each do |error|
           %li= error
-      - lint_link_url = project_ci_lint_path(@project)
-      - lint_link_start = '<a href="%{url}">'.html_safe % { url: lint_link_url }
+      - lint_link_url = project_ci_pipeline_editor_path(@project, tab: "LINT_TAB")
+      - lint_link_start = '<a href="%{url}" class="gl-text-blue-500!">'.html_safe % { url: lint_link_url }
       = s_('You can also test your %{gitlab_ci_yml} in %{lint_link_start}CI Lint%{lint_link_end}').html_safe % { gitlab_ci_yml: '.gitlab-ci.yml', lint_link_start: lint_link_start, lint_link_end: '</a>'.html_safe }
 
   = render "projects/pipelines/with_tabs", pipeline: @pipeline, stages: @stages, pipeline_has_errors: pipeline_has_errors

spec/frontend/pipeline_editor/components/pipeline_editor_tabs_spec.js

-import { GlAlert, GlLoadingIcon } from '@gitlab/ui';
+import { GlAlert, GlLoadingIcon, GlTabs } from '@gitlab/ui';
 import { shallowMount, mount } from '@vue/test-utils';
 import { nextTick } from 'vue';
+import setWindowLocation from 'helpers/set_window_location_helper';
 import CiConfigMergedPreview from '~/pipeline_editor/components/editor/ci_config_merged_preview.vue';
 import CiLint from '~/pipeline_editor/components/lint/ci_lint.vue';
 import PipelineEditorTabs from '~/pipeline_editor/components/pipeline_editor_tabs.vue';
 import EditorTab from '~/pipeline_editor/components/ui/editor_tab.vue';
 import {
+  CREATE_TAB,
   EDITOR_APP_STATUS_EMPTY,
   EDITOR_APP_STATUS_ERROR,
   EDITOR_APP_STATUS_LOADING,
   EDITOR_APP_STATUS_INVALID,
   EDITOR_APP_STATUS_VALID,
+  MERGED_TAB,
+  TAB_QUERY_PARAM,
+  TABS_INDEX,
 } from '~/pipeline_editor/constants';
 import PipelineGraph from '~/pipelines/components/pipeline_graph/pipeline_graph.vue';
 import { mockLintResponse, mockCiYml } from '../mock_data';
@@ -53,6 +58,7 @@ describe('Pipeline editor tabs component', () => {
 
   const findAlert = () => wrapper.findComponent(GlAlert);
   const findCiLint = () => wrapper.findComponent(CiLint);
+  const findGlTabs = () => wrapper.findComponent(GlTabs);
   const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
   const findPipelineGraph = () => wrapper.findComponent(PipelineGraph);
   const findTextEditor = () => wrapper.findComponent(MockTextEditor);
@@ -181,4 +187,54 @@ describe('Pipeline editor tabs component', () => {
       },
     );
   });
+
+  describe('default tab based on url query param', () => {
+    const gitlabUrl = 'https://gitlab.test/ci/editor/';
+    const matchObject = {
+      hostname: 'gitlab.test',
+      pathname: '/ci/editor/',
+      search: '',
+    };
+
+    it(`is ${CREATE_TAB} if the query param ${TAB_QUERY_PARAM} is not present`, () => {
+      setWindowLocation(gitlabUrl);
+      createComponent();
+
+      expect(window.location).toMatchObject(matchObject);
+    });
+
+    it(`is ${CREATE_TAB} tab if the query param ${TAB_QUERY_PARAM} is invalid`, () => {
+      const queryValue = 'FOO';
+      setWindowLocation(`${gitlabUrl}?${TAB_QUERY_PARAM}=${queryValue}`);
+      createComponent();
+
+      // If the query param remains unchanged, then we have ignored it.
+      expect(window.location).toMatchObject({
+        ...matchObject,
+        search: `?${TAB_QUERY_PARAM}=${queryValue}`,
+      });
+    });
+
+    it('is the tab specified in query param and transform it into an index value', async () => {
+      setWindowLocation(`${gitlabUrl}?${TAB_QUERY_PARAM}=${MERGED_TAB}`);
+      createComponent();
+
+      // If the query param has changed to an index, it means we have synced the
+      // query with.
+      expect(window.location).toMatchObject({
+        ...matchObject,
+        search: `?${TAB_QUERY_PARAM}=${TABS_INDEX[MERGED_TAB]}`,
+      });
+    });
+  });
+
+  describe('glTabs', () => {
+    beforeEach(() => {
+      createComponent();
+    });
+
+    it('passes the `sync-active-tab-with-query-params` prop', () => {
+      expect(findGlTabs().props('syncActiveTabWithQueryParams')).toBe(true);
+    });
+  });
 });

spec/frontend/pipeline_editor/pipeline_editor_app_spec.js

-import { GlAlert, GlButton, GlLoadingIcon, GlTabs } from '@gitlab/ui';
+import { GlAlert, GlButton, GlLoadingIcon } from '@gitlab/ui';
 import { shallowMount, createLocalVue } from '@vue/test-utils';
 import VueApollo from 'vue-apollo';
 import createMockApollo from 'helpers/mock_apollo_helper';
 import setWindowLocation from 'helpers/set_window_location_helper';
 import waitForPromises from 'helpers/wait_for_promises';
-import CommitForm from '~/pipeline_editor/components/commit/commit_form.vue';
-import TextEditor from '~/pipeline_editor/components/editor/text_editor.vue';
 
 import PipelineEditorTabs from '~/pipeline_editor/components/pipeline_editor_tabs.vue';
 import PipelineEditorEmptyState from '~/pipeline_editor/components/ui/pipeline_editor_empty_state.vue';
@@ -35,10 +33,6 @@ import {
 const localVue = createLocalVue();
 localVue.use(VueApollo);
 
-const MockSourceEditor = {
-  template: '<div/>',
-};
-
 const mockProvide = {
   ciConfigPath: mockCiConfigPath,
   defaultBranch: mockDefaultBranch,
@@ -55,19 +49,15 @@ describe('Pipeline editor app component', () => {
   let mockLatestCommitShaQuery;
   let mockPipelineQuery;
 
-  const createComponent = ({ blobLoading = false, options = {}, provide = {} } = {}) => {
+  const createComponent = ({
+    blobLoading = false,
+    options = {},
+    provide = {},
+    stubs = {},
+  } = {}) => {
     wrapper = shallowMount(PipelineEditorApp, {
       provide: { ...mockProvide, ...provide },
-      stubs: {
-        GlTabs,
-        GlButton,
-        CommitForm,
-        PipelineEditorHome,
-        PipelineEditorTabs,
-        PipelineEditorMessages,
-        SourceEditor: MockSourceEditor,
-        PipelineEditorEmptyState,
-      },
+      stubs,
       data() {
         return {
           commitSha: '',
@@ -89,7 +79,7 @@ describe('Pipeline editor app component', () => {
     });
   };
 
-  const createComponentWithApollo = async ({ props = {}, provide = {} } = {}) => {
+  const createComponentWithApollo = async ({ props = {}, provide = {}, stubs = {} } = {}) => {
     const handlers = [
       [getBlobContent, mockBlobContentData],
       [getCiConfigData, mockCiConfigData],
@@ -111,7 +101,7 @@ describe('Pipeline editor app component', () => {
       apolloProvider: mockApollo,
     };
 
-    createComponent({ props, provide, options });
+    createComponent({ props, provide, stubs, options });
 
     return waitForPromises();
   };
@@ -119,7 +109,6 @@ describe('Pipeline editor app component', () => {
   const findLoadingIcon = () => wrapper.findComponent(GlLoadingIcon);
   const findAlert = () => wrapper.findComponent(GlAlert);
   const findEditorHome = () => wrapper.findComponent(PipelineEditorHome);
-  const findTextEditor = () => wrapper.findComponent(TextEditor);
   const findEmptyState = () => wrapper.findComponent(PipelineEditorEmptyState);
   const findEmptyStateButton = () =>
     wrapper.findComponent(PipelineEditorEmptyState).findComponent(GlButton);
@@ -141,7 +130,7 @@ describe('Pipeline editor app component', () => {
       createComponent({ blobLoading: true });
 
       expect(findLoadingIcon().exists()).toBe(true);
-      expect(findTextEditor().exists()).toBe(false);
+      expect(findEditorHome().exists()).toBe(false);
     });
   });
 
@@ -185,7 +174,11 @@ describe('Pipeline editor app component', () => {
     describe('when no CI config file exists', () => {
       beforeEach(async () => {
         mockBlobContentData.mockResolvedValue(mockBlobContentQueryResponseNoCiFile);
-        await createComponentWithApollo();
+        await createComponentWithApollo({
+          stubs: {
+            PipelineEditorEmptyState,
+          },
+        });
 
         jest
           .spyOn(wrapper.vm.$apollo.queries.commitSha, 'startPolling')
@@ -207,7 +200,11 @@ describe('Pipeline editor app component', () => {
           const loadUnknownFailureText = 'The CI configuration was not loaded, please try again.';
 
           mockBlobContentData.mockRejectedValueOnce(new Error('My error!'));
-          await createComponentWithApollo();
+          await createComponentWithApollo({
+            stubs: {
+              PipelineEditorMessages,
+            },
+          });
 
           expect(findEmptyState().exists()).toBe(false);
 
@@ -222,15 +219,20 @@ describe('Pipeline editor app component', () => {
         mockBlobContentData.mockResolvedValue(mockBlobContentQueryResponseNoCiFile);
         mockLatestCommitShaQuery.mockResolvedValue(mockEmptyCommitShaResults);
 
-        await createComponentWithApollo();
+        await createComponentWithApollo({
+          stubs: {
+            PipelineEditorHome,
+            PipelineEditorEmptyState,
+          },
+        });
 
         expect(findEmptyState().exists()).toBe(true);
-        expect(findTextEditor().exists()).toBe(false);
+        expect(findEditorHome().exists()).toBe(false);
 
         await findEmptyStateButton().vm.$emit('click');
 
         expect(findEmptyState().exists()).toBe(false);
-        expect(findTextEditor().exists()).toBe(true);
+        expect(findEditorHome().exists()).toBe(true);
       });
     });
 
@@ -241,7 +243,7 @@ describe('Pipeline editor app component', () => {
       describe('and the commit mutation succeeds', () => {
         beforeEach(async () => {
           window.scrollTo = jest.fn();
-          await createComponentWithApollo();
+          await createComponentWithApollo({ stubs: { PipelineEditorMessages } });
 
           findEditorHome().vm.$emit('commit', { type: COMMIT_SUCCESS });
         });
@@ -295,7 +297,7 @@ describe('Pipeline editor app component', () => {
 
         beforeEach(async () => {
           window.scrollTo = jest.fn();
-          await createComponentWithApollo();
+          await createComponentWithApollo({ stubs: { PipelineEditorMessages } });
 
           findEditorHome().vm.$emit('showError', {
             type: COMMIT_FAILURE,
@@ -319,7 +321,7 @@ describe('Pipeline editor app component', () => {
 
         beforeEach(async () => {
           window.scrollTo = jest.fn();
-          await createComponentWithApollo();
+          await createComponentWithApollo({ stubs: { PipelineEditorMessages } });
 
           findEditorHome().vm.$emit('showError', {
             type: COMMIT_FAILURE,
@@ -386,7 +388,9 @@ describe('Pipeline editor app component', () => {
     });
 
     it('renders the given template', async () => {
-      await createComponentWithApollo();
+      await createComponentWithApollo({
+        stubs: { PipelineEditorHome, PipelineEditorTabs },
+      });
 
       expect(mockGetTemplate).toHaveBeenCalledWith({
         projectPath: mockProjectFullPath,
@@ -394,7 +398,7 @@ describe('Pipeline editor app component', () => {
       });
 
       expect(findEmptyState().exists()).toBe(false);
-      expect(findTextEditor().exists()).toBe(true);
+      expect(findEditorHome().exists()).toBe(true);
     });
   });
 });

spec/frontend/pipeline_editor/pipeline_editor_home_spec.js

@@ -39,7 +39,6 @@ describe('Pipeline editor home wrapper', () => {
 
   afterEach(() => {
     wrapper.destroy();
-    wrapper = null;
   });
 
   describe('renders', () => {