From 01fa7c10d9c301ca09e40ce2b2e70514cd3f1053 Mon Sep 17 00:00:00 2001
From: GitLab Bot <gitlab-bot@gitlab.com>
Date: Thu, 3 Aug 2023 21:08:37 +0000
Subject: Add latest changes from gitlab-org/gitlab@master

---
 .eslintrc.yml                                      |   5 -
 .../components/ci_variable_settings.vue            |   1 +
 .../components/ci_variable_table.vue               | 397 ++++++++++++---------
 app/assets/javascripts/repository/index.js         |   8 -
 app/assets/stylesheets/framework/new_card.scss     |   3 +-
 app/assets/stylesheets/pages/settings.scss         |   1 -
 app/mailers/emails/merge_requests.rb               |   2 -
 .../admin/application_settings/ci_cd.html.haml     |   2 +-
 app/views/ci/variables/_index.html.haml            |   6 +-
 app/views/projects/_files.html.haml                |   2 +-
 app/views/projects/tree/_tree_header.html.haml     |   4 +-
 data/deprecations/16-3-deprecate-twitter-saas.yml  |  10 +
 data/deprecations/16-3-deprecate-twitter-sm.yml    |  10 +
 doc/development/ai_features.md                     |  47 +++
 doc/integration/twitter.md                         |   9 +-
 doc/update/deprecations.md                         |  28 ++
 locale/gitlab.pot                                  |  12 +
 .../components/ci_variable_table_spec.js           |  25 +-
 18 files changed, 374 insertions(+), 198 deletions(-)
 create mode 100644 data/deprecations/16-3-deprecate-twitter-saas.yml
 create mode 100644 data/deprecations/16-3-deprecate-twitter-sm.yml

diff --git a/.eslintrc.yml b/.eslintrc.yml
index c9ae61e75a5..527e94d4101 100644
--- a/.eslintrc.yml
+++ b/.eslintrc.yml
@@ -147,11 +147,6 @@ rules:
     - escape:
         methods: 'sanitize'
 overrides:
-  - files:
-      - 'ee/**/*'
-    # See https://gitlab.com/gitlab-org/gitlab/-/issues/360551
-    rules:
-      vue/multi-word-component-names: off
   - files:
       - '{,ee/,jh/}spec/frontend*/**/*'
     rules:
diff --git a/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_settings.vue b/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_settings.vue
index 4faec24e19d..f4e1da9b34f 100644
--- a/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_settings.vue
+++ b/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_settings.vue
@@ -117,6 +117,7 @@ export default {
         @handle-prev-page="$emit('handle-prev-page')"
         @handle-next-page="$emit('handle-next-page')"
         @set-selected-variable="setSelectedVariable"
+        @delete-variable="deleteVariable"
         @sort-changed="(val) => $emit('sort-changed', val)"
       />
       <ci-variable-modal
diff --git a/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_table.vue b/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_table.vue
index ec7a921664f..a14cd1e387a 100644
--- a/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_table.vue
+++ b/app/assets/javascripts/ci/ci_variable_list/components/ci_variable_table.vue
@@ -3,11 +3,14 @@ import {
   GlAlert,
   GlBadge,
   GlButton,
+  GlCard,
+  GlIcon,
   GlLoadingIcon,
   GlModalDirective,
   GlKeysetPagination,
   GlLink,
   GlTable,
+  GlModal,
   GlTooltipDirective,
 } from '@gitlab/ui';
 import { __, s__, sprintf } from '~/locale';
@@ -45,9 +48,8 @@ export default {
     },
     {
       key: 'actions',
-      label: '',
-      tdClass: 'text-right',
-      thClass: 'gl-w-5p',
+      label: __('Actions'),
+      thClass: 'gl-text-right',
     },
   ],
   inheritedVarsFields: [
@@ -73,10 +75,13 @@ export default {
     GlAlert,
     GlBadge,
     GlButton,
+    GlCard,
     GlKeysetPagination,
     GlLink,
+    GlIcon,
     GlLoadingIcon,
     GlTable,
+    GlModal,
   },
   directives: {
     GlModalDirective,
@@ -84,6 +89,14 @@ export default {
   },
   mixins: [glFeatureFlagsMixin()],
   inject: ['isInheritedGroupVars'],
+  i18n: {
+    title: s__('CiVariables|CI/CD Variables'),
+    addButton: s__('CiVariables|Add variable'),
+    editButton: __('Edit'),
+    deleteButton: __('Delete'),
+    modalDeleteTitle: s__('CiVariables|Delete variable'),
+    modalDeleteMessage: s__('CiVariables|Do you want to delete the variable %{key}?'),
+  },
   props: {
     entity: {
       type: String,
@@ -107,6 +120,20 @@ export default {
       required: true,
     },
   },
+  deleteModal: {
+    actionPrimary: {
+      text: __('Delete'),
+      attributes: {
+        variant: 'danger',
+      },
+    },
+    actionSecondary: {
+      text: __('Cancel'),
+      attributes: {
+        variant: 'default',
+      },
+    },
+  },
   data() {
     return {
       areValuesHidden: true,
@@ -165,6 +192,9 @@ export default {
     setSelectedVariable(index = -1) {
       this.$emit('set-selected-variable', this.variables[index] ?? null);
     },
+    deleteSelectedVariable(index = -1) {
+      this.$emit('delete-variable', this.variables[index] ?? null);
+    },
     getAttributes(item) {
       const attributes = [];
       if (item.variableType === variableTypes.fileType) {
@@ -181,188 +211,219 @@ export default {
       }
       return attributes;
     },
+    removeVariableMessage(key) {
+      return sprintf(this.$options.i18n.modalDeleteMessage, {
+        key,
+      });
+    },
   },
   maximumVariableLimitReached: MAXIMUM_VARIABLE_LIMIT_REACHED,
 };
 </script>
 
 <template>
-  <div class="ci-variable-table" :data-testid="tableDataTestId">
-    <gl-loading-icon v-if="isLoading" />
-    <gl-alert
-      v-if="showAlert"
-      :dismissible="false"
-      :title="$options.maximumVariableLimitReached"
-      variant="info"
-    >
-      {{ exceedsVariableLimitText }}
-    </gl-alert>
-    <div
-      v-if="showPagination && !isInheritedGroupVars"
-      class="ci-variable-actions gl-display-flex gl-justify-content-end gl-my-3"
+  <div>
+    <gl-card
+      class="gl-new-card ci-variable-table"
+      header-class="gl-new-card-header"
+      body-class="gl-new-card-body gl-px-0"
+      :data-testid="tableDataTestId"
     >
-      <gl-button v-if="!isTableEmpty" @click="toggleHiddenState">{{ valuesButtonText }}</gl-button>
-      <gl-button
-        v-gl-modal-directive="$options.modalId"
-        class="gl-mx-3"
-        data-qa-selector="add_ci_variable_button"
-        variant="confirm"
-        category="primary"
-        :aria-label="__('Add')"
-        :disabled="exceedsVariableLimit"
-        @click="setSelectedVariable()"
-        >{{ __('Add variable') }}</gl-button
-      >
-    </div>
-    <gl-table
-      v-if="!isLoading"
-      :fields="fields"
-      :items="variablesWithAttributes"
-      tbody-tr-class="js-ci-variable-row"
-      sort-by="key"
-      sort-direction="asc"
-      stacked="lg"
-      fixed
-      show-empty
-      sort-icon-left
-      no-sort-reset
-      no-local-sorting
-      @sort-changed="(val) => $emit('sort-changed', val)"
-    >
-      <template #table-colgroup="scope">
-        <col v-for="field in scope.fields" :key="field.key" :style="field.customStyle" />
-      </template>
-      <template #cell(key)="{ item }">
-        <div
-          class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
-        >
-          <span
-            :id="`ci-variable-key-${item.id}`"
-            class="gl-display-inline-block gl-max-w-full gl-word-break-word"
-            >{{ item.key }}</span
-          >
+      <template #header>
+        <div class="gl-new-card-title-wrapper">
+          <h5 class="gl-new-card-title">{{ $options.i18n.title }}</h5>
+          <span class="gl-new-card-count">
+            <gl-icon name="code" class="gl-mr-2" />
+            {{ variables.length }}
+          </span>
+        </div>
+        <div v-if="!isInheritedGroupVars" class="gl-new-card-actions gl-font-size-0">
           <gl-button
-            v-gl-tooltip
+            v-if="!isTableEmpty"
             category="tertiary"
-            icon="copy-to-clipboard"
-            class="gl-my-n3 gl-ml-2"
-            :title="__('Copy key')"
-            :data-clipboard-text="item.key"
-            :aria-label="__('Copy to clipboard')"
-          />
-        </div>
-      </template>
-      <template v-if="!isInheritedGroupVars" #cell(value)="{ item }">
-        <div
-          class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
-        >
-          <span v-if="areValuesHidden" data-testid="hiddenValue">*****</span>
-          <span
-            v-else
-            :id="`ci-variable-value-${item.id}`"
-            class="gl-display-inline-block gl-max-w-full gl-text-truncate"
-            data-testid="revealedValue"
-            >{{ item.value }}</span
+            size="small"
+            class="gl-mr-3"
+            @click="toggleHiddenState"
+            >{{ valuesButtonText }}</gl-button
           >
           <gl-button
-            v-gl-tooltip
-            category="tertiary"
-            icon="copy-to-clipboard"
-            class="gl-my-n3 gl-ml-2"
-            :title="__('Copy value')"
-            :data-clipboard-text="item.value"
-            :aria-label="__('Copy to clipboard')"
-          />
+            v-gl-modal-directive="$options.modalId"
+            size="small"
+            :disabled="exceedsVariableLimit"
+            data-qa-selector="add_ci_variable_button"
+            data-testid="add-ci-variable-button"
+            @click="setSelectedVariable()"
+            >{{ $options.i18n.addButton }}</gl-button
+          >
         </div>
       </template>
-      <template #cell(attributes)="{ item }">
-        <span data-testid="ci-variable-table-row-attributes">
-          <gl-badge
-            v-for="attribute in item.attributes"
-            :key="`${item.key}-${attribute}`"
-            class="gl-mr-2"
-            variant="info"
-            size="sm"
+
+      <gl-loading-icon v-if="isLoading" class="gl-p-4" />
+      <gl-alert
+        v-if="showAlert"
+        :dismissible="false"
+        :title="$options.maximumVariableLimitReached"
+        variant="info"
+      >
+        {{ exceedsVariableLimitText }}
+      </gl-alert>
+      <gl-table
+        v-if="!isLoading"
+        :fields="fields"
+        :items="variablesWithAttributes"
+        tbody-tr-class="js-ci-variable-row"
+        sort-by="key"
+        sort-direction="asc"
+        stacked="md"
+        fixed
+        show-empty
+        sort-icon-left
+        no-sort-reset
+        no-local-sorting
+        @sort-changed="(val) => $emit('sort-changed', val)"
+      >
+        <template #table-colgroup="scope">
+          <col v-for="field in scope.fields" :key="field.key" :style="field.customStyle" />
+        </template>
+        <template #cell(key)="{ item }">
+          <div
+            class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
           >
-            {{ attribute }}
-          </gl-badge>
-        </span>
-      </template>
-      <template #cell(environmentScope)="{ item }">
-        <div
-          class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
-        >
-          <span
-            :id="`ci-variable-env-${item.id}`"
-            class="gl-display-inline-block gl-max-w-full gl-word-break-word"
-            >{{ convertEnvironmentScopeValue(item.environmentScope) }}</span
+            <span
+              :id="`ci-variable-key-${item.id}`"
+              class="gl-display-inline-block gl-max-w-full gl-word-break-word"
+              >{{ item.key }}</span
+            >
+            <gl-button
+              v-gl-tooltip
+              category="tertiary"
+              icon="copy-to-clipboard"
+              class="gl-my-n3 gl-ml-2"
+              :title="__('Copy key')"
+              :data-clipboard-text="item.key"
+              :aria-label="__('Copy to clipboard')"
+            />
+          </div>
+        </template>
+        <template v-if="!isInheritedGroupVars" #cell(value)="{ item }">
+          <div
+            class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
           >
-          <gl-button
-            v-gl-tooltip
-            category="tertiary"
-            icon="copy-to-clipboard"
-            class="gl-my-n3 gl-ml-2"
-            :title="__('Copy environment')"
-            :data-clipboard-text="convertEnvironmentScopeValue(item.environmentScope)"
-            :aria-label="__('Copy to clipboard')"
-          />
-        </div>
-      </template>
-      <template v-if="isInheritedGroupVars" #cell(group)="{ item }">
-        <div
-          class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
-        >
-          <gl-link
-            :id="`ci-variable-group-${item.id}`"
-            data-testid="ci-variable-table-row-cicd-path"
-            class="gl-display-inline-block gl-max-w-full gl-word-break-word"
-            :href="item.groupCiCdSettingsPath"
+            <span v-if="areValuesHidden" data-testid="hiddenValue">*****</span>
+            <span
+              v-else
+              :id="`ci-variable-value-${item.id}`"
+              class="gl-display-inline-block gl-max-w-full gl-text-truncate"
+              data-testid="revealedValue"
+              >{{ item.value }}</span
+            >
+            <gl-button
+              v-gl-tooltip
+              category="tertiary"
+              icon="copy-to-clipboard"
+              class="gl-my-n3 gl-ml-2"
+              :title="__('Copy value')"
+              :data-clipboard-text="item.value"
+              :aria-label="__('Copy to clipboard')"
+            />
+          </div>
+        </template>
+        <template #cell(attributes)="{ item }">
+          <span data-testid="ci-variable-table-row-attributes">
+            <gl-badge
+              v-for="attribute in item.attributes"
+              :key="`${item.key}-${attribute}`"
+              class="gl-mr-2"
+              variant="info"
+              size="sm"
+            >
+              {{ attribute }}
+            </gl-badge>
+          </span>
+        </template>
+        <template #cell(environmentScope)="{ item }">
+          <div
+            class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
           >
-            {{ item.groupName }}
-          </gl-link>
-        </div>
-      </template>
-      <template v-if="!isInheritedGroupVars" #cell(actions)="{ item }">
-        <gl-button
-          v-gl-modal-directive="$options.modalId"
-          icon="pencil"
-          :aria-label="__('Edit')"
-          data-qa-selector="edit_ci_variable_button"
-          @click="setSelectedVariable(item.index)"
-        />
-      </template>
-      <template #empty>
-        <p class="gl-text-center gl-py-6 gl-text-black-normal gl-mb-0">
-          {{ __('There are no variables yet.') }}
-        </p>
-      </template>
-    </gl-table>
-    <gl-alert
-      v-if="showAlert"
-      :dismissible="false"
-      :title="$options.maximumVariableLimitReached"
-      variant="info"
-    >
-      {{ exceedsVariableLimitText }}
-    </gl-alert>
+            <span
+              :id="`ci-variable-env-${item.id}`"
+              class="gl-display-inline-block gl-max-w-full gl-word-break-word"
+              >{{ convertEnvironmentScopeValue(item.environmentScope) }}</span
+            >
+            <gl-button
+              v-gl-tooltip
+              category="tertiary"
+              icon="copy-to-clipboard"
+              class="gl-my-n3 gl-ml-2"
+              :title="__('Copy environment')"
+              :data-clipboard-text="convertEnvironmentScopeValue(item.environmentScope)"
+              :aria-label="__('Copy to clipboard')"
+            />
+          </div>
+        </template>
+        <template v-if="isInheritedGroupVars" #cell(group)="{ item }">
+          <div
+            class="gl-display-flex gl-align-items-flex-start gl-justify-content-end gl-lg-justify-content-start gl-mr-n3"
+          >
+            <gl-link
+              :id="`ci-variable-group-${item.id}`"
+              data-testid="ci-variable-table-row-cicd-path"
+              class="gl-display-inline-block gl-max-w-full gl-word-break-word"
+              :href="item.groupCiCdSettingsPath"
+            >
+              {{ item.groupName }}
+            </gl-link>
+          </div>
+        </template>
+        <template v-if="!isInheritedGroupVars" #cell(actions)="{ item }">
+          <div class="gl-display-flex gl-justify-content-end gl-mt-n2 gl-mb-n2">
+            <gl-button
+              v-gl-modal-directive="$options.modalId"
+              icon="pencil"
+              size="small"
+              class="gl-mr-3"
+              :aria-label="$options.i18n.editButton"
+              data-qa-selector="edit_ci_variable_button"
+              @click="setSelectedVariable(item.index)"
+            />
+            <gl-button
+              v-gl-modal-directive="`delete-variable-${item.index}`"
+              variant="danger"
+              category="secondary"
+              icon="remove"
+              size="small"
+              :aria-label="$options.i18n.deleteButton"
+              data-qa-selector="delete_ci_variable_button"
+            />
+            <gl-modal
+              ref="modal"
+              :modal-id="`delete-variable-${item.index}`"
+              :title="$options.i18n.modalDeleteTitle"
+              :action-primary="$options.deleteModal.actionPrimary"
+              :action-secondary="$options.deleteModal.actionSecondary"
+              @primary="deleteSelectedVariable(item.index)"
+            >
+              {{ removeVariableMessage(item.key) }}
+            </gl-modal>
+          </div>
+        </template>
+        <template #empty>
+          <p class="gl-text-secondary gl-text-center gl-py-1 gl-mb-0">
+            {{ __('There are no variables yet.') }}
+          </p>
+        </template>
+      </gl-table>
+      <gl-alert
+        v-if="showAlert"
+        :dismissible="false"
+        :title="$options.maximumVariableLimitReached"
+        variant="info"
+      >
+        {{ exceedsVariableLimitText }}
+      </gl-alert>
+    </gl-card>
     <div v-if="!isInheritedGroupVars">
-      <div v-if="!showPagination" class="ci-variable-actions gl-display-flex gl-mt-5">
-        <gl-button
-          v-gl-modal-directive="$options.modalId"
-          class="gl-mr-3"
-          data-qa-selector="add_ci_variable_button"
-          variant="confirm"
-          category="primary"
-          :aria-label="__('Add')"
-          :disabled="exceedsVariableLimit"
-          @click="setSelectedVariable()"
-          >{{ __('Add variable') }}</gl-button
-        >
-        <gl-button v-if="!isTableEmpty" @click="toggleHiddenState">{{
-          valuesButtonText
-        }}</gl-button>
-      </div>
-      <div v-else class="gl-display-flex gl-justify-content-center gl-mt-6">
+      <div v-if="showPagination" class="gl-display-flex gl-justify-content-center gl-mt-5">
         <gl-keyset-pagination
           v-bind="pageInfo"
           :prev-text="__('Previous')"
diff --git a/app/assets/javascripts/repository/index.js b/app/assets/javascripts/repository/index.js
index 5c53fc04640..87274e9c8ea 100644
--- a/app/assets/javascripts/repository/index.js
+++ b/app/assets/javascripts/repository/index.js
@@ -230,20 +230,12 @@ export default function setupVueRepositoryList() {
 
   const treeHistoryLinkEl = document.getElementById('js-tree-history-link');
   const { historyLink } = treeHistoryLinkEl.dataset;
-  let { isProjectOverview } = treeHistoryLinkEl.dataset;
-
-  const isProjectOverviewAfterEach = router.afterEach(() => {
-    isProjectOverview = false;
-    isProjectOverviewAfterEach();
-  });
 
   // eslint-disable-next-line no-new
   new Vue({
     el: treeHistoryLinkEl,
     router,
     render(h) {
-      if (parseBoolean(isProjectOverview) && !this.$route.params.path) return null;
-
       return h(
         GlButton,
         {
diff --git a/app/assets/stylesheets/framework/new_card.scss b/app/assets/stylesheets/framework/new_card.scss
index a1d7761bd88..3fcaab671f3 100644
--- a/app/assets/stylesheets/framework/new_card.scss
+++ b/app/assets/stylesheets/framework/new_card.scss
@@ -97,7 +97,8 @@
   // Table adjustments
   @mixin new-card-table-adjustments {
     tbody > tr {
-      &:first-of-type > td[data-label] {
+      &:first-of-type > td[data-label],
+      &:first-of-type > td:first-of-type:last-of-type {
         @include gl-border-t-0;
       }
 
diff --git a/app/assets/stylesheets/pages/settings.scss b/app/assets/stylesheets/pages/settings.scss
index ad792a6ee50..c6f2b730d9b 100644
--- a/app/assets/stylesheets/pages/settings.scss
+++ b/app/assets/stylesheets/pages/settings.scss
@@ -50,7 +50,6 @@
   }
 }
 
-.ci-variable-table,
 .deploy-freeze-table,
 .ci-secure-files-table {
   table {
diff --git a/app/mailers/emails/merge_requests.rb b/app/mailers/emails/merge_requests.rb
index 6678bb563ed..67a445c14ab 100644
--- a/app/mailers/emails/merge_requests.rb
+++ b/app/mailers/emails/merge_requests.rb
@@ -186,5 +186,3 @@ module Emails
     end
   end
 end
-
-Emails::MergeRequests.prepend_mod_with('Emails::MergeRequests')
diff --git a/app/views/admin/application_settings/ci_cd.html.haml b/app/views/admin/application_settings/ci_cd.html.haml
index a9a16f72ebe..9b36a983f26 100644
--- a/app/views/admin/application_settings/ci_cd.html.haml
+++ b/app/views/admin/application_settings/ci_cd.html.haml
@@ -8,7 +8,7 @@
     = render 'admin/application_settings/ci/header', expanded: expanded_by_default?
   .settings-content
     - if ci_variable_protected_by_default?
-      %p.settings-message.text-center
+      %p.settings-message.text-center.gl-mb-0
         - link_start = '<a href="%{url}">'.html_safe % { url: help_page_path('ci/variables/index', anchor: 'protect-a-cicd-variable') }
         = s_('Environment variables on this GitLab instance are configured to be %{link_start}protected%{link_end} by default.').html_safe % { link_start: link_start, link_end: '</a>'.html_safe }
     #js-instance-variables{ data: { endpoint: admin_ci_variables_path, maskable_regex: ci_variable_maskable_regex, protected_by_default: ci_variable_protected_by_default?.to_s} }
diff --git a/app/views/ci/variables/_index.html.haml b/app/views/ci/variables/_index.html.haml
index 5eed4e92386..7e5e8d8f961 100644
--- a/app/views/ci/variables/_index.html.haml
+++ b/app/views/ci/variables/_index.html.haml
@@ -32,7 +32,5 @@
   environment_scope_link: help_page_path('ci/environments/index', anchor: 'limit-the-environment-scope-of-a-cicd-variable') } }
 
 - if !@group && @project.group
-  .settings-header.border-top.gl-mt-6
-    = render 'ci/group_variables/header'
-  .settings-content.pr-0
-    = render 'ci/group_variables/index'
+  = render 'ci/group_variables/header'
+  = render 'ci/group_variables/index'
diff --git a/app/views/projects/_files.html.haml b/app/views/projects/_files.html.haml
index ba6cf689bdc..cb341ede9de 100644
--- a/app/views/projects/_files.html.haml
+++ b/app/views/projects/_files.html.haml
@@ -15,7 +15,7 @@
       #js-code-owners{ data: { branch: @ref, can_view_branch_rules: can_view_branch_rules?, branch_rules_path: branch_rules_path } }
 
   .nav-block.gl-display-flex.gl-xs-flex-direction-column.gl-align-items-stretch
-    = render 'projects/tree/tree_header', tree: @tree, is_project_overview: is_project_overview
+    = render 'projects/tree/tree_header', tree: @tree
 
   - if project.forked?
     #js-fork-info{ data: vue_fork_divergence_data(project, ref) }
diff --git a/app/views/projects/tree/_tree_header.html.haml b/app/views/projects/tree/_tree_header.html.haml
index c834a0bc818..a4ed19c2fc9 100644
--- a/app/views/projects/tree/_tree_header.html.haml
+++ b/app/views/projects/tree/_tree_header.html.haml
@@ -1,5 +1,3 @@
-- is_project_overview = local_assigns.fetch(:is_project_overview, false)
-
 .tree-ref-container.gl-display-flex.gl-flex-wrap.gl-gap-2.mb-2.mb-md-0
   .tree-ref-holder.gl-max-w-26{ data: { qa_selector: 'ref_dropdown_container' } }
     #js-tree-ref-switcher{ data: { project_id: @project.id, ref_type: @ref_type.to_s, project_root_path: project_path(@project) } }
@@ -10,7 +8,7 @@
 .tree-controls
   .d-block.d-sm-flex.flex-wrap.align-items-start.gl-children-ml-sm-3.gl-first-child-ml-sm-0<
     = render_if_exists 'projects/tree/lock_link'
-    #js-tree-history-link{ data: { history_link: project_commits_path(@project, @ref), is_project_overview: is_project_overview.to_s } }
+    #js-tree-history-link{ data: { history_link: project_commits_path(@project, @ref) } }
 
     = render 'projects/find_file_link'
     = render 'shared/web_ide_button', blob: nil
diff --git a/data/deprecations/16-3-deprecate-twitter-saas.yml b/data/deprecations/16-3-deprecate-twitter-saas.yml
new file mode 100644
index 00000000000..3c0150ec65c
--- /dev/null
+++ b/data/deprecations/16-3-deprecate-twitter-saas.yml
@@ -0,0 +1,10 @@
+- title: "Twitter OmniAuth login option is removed from GitLab.com"
+  removal_milestone: "16.3"
+  announcement_milestone: "16.3"
+  breaking_change: true
+  reporter: jessieay
+  stage: Manage
+  issue_url: https://gitlab.com/gitlab-com/Product/-/issues/11417
+  body: |  # (required) Do not modify this line, instead modify the lines below.
+    Twitter OAuth 1.0a OmniAuth is being deprecated and removed on GitLab.com in GitLab 16.3 due to low use, lack of gem support, and the lack of a functional sign-in option for this feature. If you sign into GitLab.com with Twitter, you can sign in with a password or another [supported OmniAuth provider](https://gitlab.com/users/sign_in).
+  documentation_url: https://docs.gitlab.com/ee/integration/twitter.html
diff --git a/data/deprecations/16-3-deprecate-twitter-sm.yml b/data/deprecations/16-3-deprecate-twitter-sm.yml
new file mode 100644
index 00000000000..562fce1ff1c
--- /dev/null
+++ b/data/deprecations/16-3-deprecate-twitter-sm.yml
@@ -0,0 +1,10 @@
+- title: "Twitter OmniAuth login option is deprecated from self-managed GitLab"
+  removal_milestone: "17.0"
+  announcement_milestone: "16.3"
+  breaking_change: true
+  reporter: jessieay
+  stage: Manage
+  issue_url: https://gitlab.com/gitlab-com/Product/-/issues/11417
+  body: |  # (required) Do not modify this line, instead modify the lines below.
+    Twitter OAuth 1.0a OmniAuth is deprecated and will be removed for self-managed GitLab instances in GitLab 17.0 due to low use and lack of gem support. Use [another supported OmniAuth provider](https://docs.gitlab.com/ee/integration/omniauth.html#supported-providers) instead.
+  documentation_url: https://docs.gitlab.com/ee/integration/twitter.html
diff --git a/doc/development/ai_features.md b/doc/development/ai_features.md
index 79d03ff6c72..aa9051438c8 100644
--- a/doc/development/ai_features.md
+++ b/doc/development/ai_features.md
@@ -138,6 +138,53 @@ To populate the embedding database for GitLab chat:
 1. Open a rails console
 1. Run [this script](https://gitlab.com/gitlab-com/gl-infra/production/-/issues/10588#note_1373586079) to populate the embedding database
 
+### Contributing to GitLab Duo Chat
+
+The Chat feature uses a [zero-shot agent](https://gitlab.com/gitlab-org/gitlab/blob/master/ee/lib/gitlab/llm/chain/agents/zero_shot/executor.rb) that includes a system prompt explaining how the large language model should interpret the question and provide an
+answer. The system prompt defines available tools that can be used to gather
+information to answer the user's question.
+
+The zero-shot agent receives the user's question and decides which tools to use to gather information to answer it.
+It then makes a request to the large language model, which decides if it can answer directly or if it needs to use one
+of the defined tools.
+
+The tools each have their own prompt that provides instructions to the large language model on how to use that tool to
+gather information. The tools are designed to be self-sufficient and avoid multiple requests back and forth to
+the large language model.
+
+After the tools have gathered the required information, it is returned to the zero-shot agent, which asks the large language
+model if enough information has been gathered to provide the final answer to the user's question.
+
+#### Adding a new tool
+
+To add a new tool:
+
+1. Create files for the tool in the `ee/lib/gitlab/llm/chain/tools/` folder. Use existing tools like `issue_identifier` or
+`resource_reader` as a template.
+
+1. Write a class for the tool that includes:
+
+   - Name and description of what the tool does
+   - Example questions that would use this tool
+   - Instructions for the large language model on how to use the tool to gather information - so the main prompts that
+   this tool is using.
+
+1. Test and iterate on the prompt using RSpec tests that make real requests to the large language model.
+   - Prompts require trial and error, the non-deterministic nature of working with LLM can be surprising.
+   - Anthropic provides good [guide](https://docs.anthropic.com/claude/docs/introduction-to-prompt-design) on working on prompts.
+
+1. Implement code in the tool to parse the response from the large language model and return it to the zero-shot agent.
+
+1. Add the new tool name to the `tools` array in `ee/lib/gitlab/llm/completions/chat.rb` so the zero-shot agent knows about it.
+
+1. Add tests by adding questions to the test-suite for which the new tool should respond to. Iterate on the prompts as needed.
+
+The key things to keep in mind are properly instructing the large language model through prompts and tool descriptions,
+keeping tools self-sufficient, and returning responses to the zero-shot agent. With some trial and error on prompts,
+adding new tools can expand the capabilities of the chat feature.
+
+There are available short [videos](https://www.youtube.com/playlist?list=PL05JrBw4t0KoOK-bm_bwfHaOv-1cveh8i) covering this topic.
+
 ### Debugging
 
 To gather more insights about the full request, use the `Gitlab::Llm::Logger` file to debug logs.
diff --git a/doc/integration/twitter.md b/doc/integration/twitter.md
index 3edb0f25938..4e1762d0268 100644
--- a/doc/integration/twitter.md
+++ b/doc/integration/twitter.md
@@ -4,7 +4,14 @@ group: Authentication and Authorization
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
 ---
 
-# Twitter OAuth 1.0a OmniAuth Provider **(FREE SELF)**
+# Twitter OAuth 1.0a OmniAuth Provider (deprecated) **(FREE SELF)**
+
+<!--- start_remove The following content will be removed on remove_date: '2024-05-17' -->
+
+WARNING:
+This feature was [deprecated](https://gitlab.com/gitlab-com/Product/-/issues/11417) in GitLab 16.3 and is planned for removal in 17.0. Use [another supported OmniAuth provider](omniauth.md#supported-providers) instead. This change is a breaking change.
+
+<!--- end_remove -->
 
 NOTE:
 Twitter OAuth 2.0 support is [not supported](https://gitlab.com/gitlab-org/gitlab/-/issues/366213).
diff --git a/doc/update/deprecations.md b/doc/update/deprecations.md
index 89d7f04b549..47bece45a45 100644
--- a/doc/update/deprecations.md
+++ b/doc/update/deprecations.md
@@ -774,6 +774,20 @@ In some cases, like when a downstream pipeline had the `passed with warnings` st
 
 <div class="deprecation breaking-change" data-milestone="17.0">
 
+### Twitter OmniAuth login option is deprecated from self-managed GitLab
+
+<div class="deprecation-notes">
+- Announced in GitLab <span class="milestone">16.3</span>
+- Removal in GitLab <span class="milestone">17.0</span> ([breaking change](https://docs.gitlab.com/ee/update/terminology.html#breaking-change))
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-com/Product/-/issues/11417).
+</div>
+
+Twitter OAuth 1.0a OmniAuth is deprecated and will be removed for self-managed GitLab instances in GitLab 17.0 due to low use and lack of gem support. Use [another supported OmniAuth provider](https://docs.gitlab.com/ee/integration/omniauth.html#supported-providers) instead.
+
+</div>
+
+<div class="deprecation breaking-change" data-milestone="17.0">
+
 ### Unified approval rules are deprecated
 
 <div class="deprecation-notes">
@@ -1031,6 +1045,20 @@ The GitLab [License Compliance](https://docs.gitlab.com/ee/user/compliance/licen
 | DS template is included but LS template is not | No license data | License data from DS job is used | License data from DS job is used |
 | LS template is included but DS template is not | License data from LS job is used | License data from LS job is used | No license data |
 
+</div>
+
+<div class="deprecation breaking-change" data-milestone="16.3">
+
+### Twitter OmniAuth login option is removed from GitLab.com
+
+<div class="deprecation-notes">
+- Announced in GitLab <span class="milestone">16.3</span>
+- Removal in GitLab <span class="milestone">16.3</span> ([breaking change](https://docs.gitlab.com/ee/update/terminology.html#breaking-change))
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-com/Product/-/issues/11417).
+</div>
+
+Twitter OAuth 1.0a OmniAuth is being deprecated and removed on GitLab.com in GitLab 16.3 due to low use, lack of gem support, and the lack of a functional sign-in option for this feature. If you sign into GitLab.com with Twitter, you can sign in with a password or another [supported OmniAuth provider](https://gitlab.com/users/sign_in).
+
 </div>
 </div>
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 758f6701083..d87aaee2558 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -10083,15 +10083,27 @@ msgstr ""
 msgid "CiVariables|Add Variable"
 msgstr ""
 
+msgid "CiVariables|Add variable"
+msgstr ""
+
 msgid "CiVariables|Attributes"
 msgstr ""
 
+msgid "CiVariables|CI/CD Variables"
+msgstr ""
+
 msgid "CiVariables|Cancel"
 msgstr ""
 
 msgid "CiVariables|Cannot use Masked Variable with current value"
 msgstr ""
 
+msgid "CiVariables|Delete variable"
+msgstr ""
+
+msgid "CiVariables|Do you want to delete the variable %{key}?"
+msgstr ""
+
 msgid "CiVariables|Environments"
 msgstr ""
 
diff --git a/spec/frontend/ci/ci_variable_list/components/ci_variable_table_spec.js b/spec/frontend/ci/ci_variable_list/components/ci_variable_table_spec.js
index f3f1c5bd2c5..39c03a41660 100644
--- a/spec/frontend/ci/ci_variable_list/components/ci_variable_table_spec.js
+++ b/spec/frontend/ci/ci_variable_list/components/ci_variable_table_spec.js
@@ -1,4 +1,4 @@
-import { GlAlert, GlBadge, GlKeysetPagination } from '@gitlab/ui';
+import { GlAlert, GlBadge, GlKeysetPagination, GlCard, GlIcon } from '@gitlab/ui';
 import { sprintf } from '~/locale';
 import { mountExtended } from 'helpers/vue_test_utils_helper';
 import CiVariableTable from '~/ci/ci_variable_list/components/ci_variable_table.vue';
@@ -36,7 +36,7 @@ describe('Ci variable table', () => {
   };
 
   const findRevealButton = () => wrapper.findByText('Reveal values');
-  const findAddButton = () => wrapper.findByLabelText('Add');
+  const findAddButton = () => wrapper.findByTestId('add-ci-variable-button');
   const findEditButton = () => wrapper.findByLabelText('Edit');
   const findEmptyVariablesPlaceholder = () => wrapper.findByText('There are no variables yet.');
   const findHiddenValues = () => wrapper.findAllByTestId('hiddenValue');
@@ -50,11 +50,30 @@ describe('Ci variable table', () => {
   const findGroupCiCdSettingsLink = (rowIndex) =>
     wrapper.findAllByTestId('ci-variable-table-row-cicd-path').at(rowIndex).attributes('href');
   const findKeysetPagination = () => wrapper.findComponent(GlKeysetPagination);
+  const findCard = () => wrapper.findComponent(GlCard);
 
   const generateExceedsVariableLimitText = (entity, currentVariableCount, maxVariableLimit) => {
     return sprintf(EXCEEDS_VARIABLE_LIMIT_TEXT, { entity, currentVariableCount, maxVariableLimit });
   };
 
+  describe('card', () => {
+    it('displays the correct title', () => {
+      createComponent();
+      expect(findCard().text()).toContain('CI/CD Variables');
+    });
+
+    it('displays the correct icon', () => {
+      createComponent();
+      expect(findCard().findComponent(GlIcon).props('name')).toBe('code');
+    });
+
+    it('displays the number of added CI/CD Variables', () => {
+      const variables = [1, 2, 3];
+      createComponent({ props: { variables } });
+      expect(findCard().text()).toContain(String(variables.length));
+    });
+  });
+
   describe.each`
     isVariablePagesEnabled | text
     ${true}                | ${'enabled'}
@@ -88,7 +107,7 @@ describe('Ci variable table', () => {
         ${1}  | ${'Value'}
         ${2}  | ${'Attributes'}
         ${3}  | ${'Environments'}
-        ${4}  | ${''}
+        ${4}  | ${'Actions'}
       `('renders the $text column', ({ index, text }) => {
         expect(findTableColumnText(index)).toEqual(text);
       });
-- 
cgit v1.2.3