Decouple wiki views from projects

- Add generic `wiki_path` / `wiki_page_path` helpers.
- Move views into `app/views/shared`.
- Move JS assets into `app/assets/javascripts/pages/shared`.
- Refer to `@wiki` instead of `@project` in views.
- Use constants on `Wiki` instead of `ProjectWiki`.

.haml-lint_todo.yml

@@ -162,7 +162,6 @@ linters:
       - "app/views/projects/_home_panel.html.haml"
       - "app/views/projects/_import_project_pane.html.haml"
       - "app/views/projects/_issuable_by_email.html.haml"
-      - "app/views/projects/_md_preview.html.haml"
       - "app/views/projects/_readme.html.haml"
       - "app/views/projects/artifacts/_artifact.html.haml"
       - "app/views/projects/artifacts/_tree_file.html.haml"
@@ -267,7 +266,6 @@ linters:
       - "app/views/projects/triggers/_index.html.haml"
       - "app/views/projects/triggers/_trigger.html.haml"
       - "app/views/projects/triggers/edit.html.haml"
-      - "app/views/projects/wikis/_pages_wiki_page.html.haml"
       - "app/views/search/results/_issue.html.haml"
       - "app/views/search/results/_note.html.haml"
       - "app/views/search/results/_snippet_blob.html.haml"
@@ -277,6 +275,7 @@ linters:
       - "app/views/shared/_delete_label_modal.html.haml"
       - "app/views/shared/_group_form.html.haml"
       - "app/views/shared/_group_tips.html.haml"
+      - "app/views/shared/_md_preview.html.haml"
       - "app/views/shared/_milestone_expired.html.haml"
       - "app/views/shared/_no_password.html.haml"
       - "app/views/shared/_ping_consent.html.haml"
@@ -313,6 +312,7 @@ linters:
       - "app/views/shared/snippets/_snippet.html.haml"
       - "app/views/shared/web_hooks/_form.html.haml"
       - "app/views/shared/web_hooks/_hook.html.haml"
+      - "app/views/shared/wikis/_pages_wiki_page.html.haml"
       - "app/views/u2f/_authenticate.html.haml"
       - "app/views/u2f/_register.html.haml"
       - "app/views/users/_deletion_guidance.html.haml"

app/assets/javascripts/pages/projects/wikis/index.js

-import $ from 'jquery';
-import Vue from 'vue';
-import Translate from '~/vue_shared/translate';
-import csrf from '~/lib/utils/csrf';
-import ShortcutsWiki from '~/behaviors/shortcuts/shortcuts_wiki';
-import Wikis from './wikis';
-import ZenMode from '../../../zen_mode';
-import GLForm from '../../../gl_form';
-import deleteWikiModal from './components/delete_wiki_modal.vue';
+import initWikis from '~/pages/shared/wikis';
 
-document.addEventListener('DOMContentLoaded', () => {
-  new Wikis(); // eslint-disable-line no-new
-  new ShortcutsWiki(); // eslint-disable-line no-new
-  new ZenMode(); // eslint-disable-line no-new
-  new GLForm($('.wiki-form')); // eslint-disable-line no-new
-
-  const deleteWikiModalWrapperEl = document.getElementById('delete-wiki-modal-wrapper');
-
-  if (deleteWikiModalWrapperEl) {
-    Vue.use(Translate);
-
-    const { deleteWikiUrl, pageTitle } = deleteWikiModalWrapperEl.dataset;
-
-    // eslint-disable-next-line no-new
-    new Vue({
-      el: deleteWikiModalWrapperEl,
-      data: {
-        deleteWikiUrl: '',
-      },
-      render(createElement) {
-        return createElement(deleteWikiModal, {
-          props: {
-            pageTitle,
-            deleteWikiUrl,
-            csrfToken: csrf.token,
-          },
-        });
-      },
-    });
-  }
-});
+document.addEventListener('DOMContentLoaded', initWikis);

app/assets/javascripts/pages/shared/wikis/index.js

+import $ from 'jquery';
+import Vue from 'vue';
+import Translate from '~/vue_shared/translate';
+import csrf from '~/lib/utils/csrf';
+import ShortcutsWiki from '~/behaviors/shortcuts/shortcuts_wiki';
+import Wikis from './wikis';
+import ZenMode from '../../../zen_mode';
+import GLForm from '../../../gl_form';
+import deleteWikiModal from './components/delete_wiki_modal.vue';
+
+export default () => {
+  new Wikis(); // eslint-disable-line no-new
+  new ShortcutsWiki(); // eslint-disable-line no-new
+  new ZenMode(); // eslint-disable-line no-new
+  new GLForm($('.wiki-form')); // eslint-disable-line no-new
+
+  const deleteWikiModalWrapperEl = document.getElementById('delete-wiki-modal-wrapper');
+
+  if (deleteWikiModalWrapperEl) {
+    Vue.use(Translate);
+
+    const { deleteWikiUrl, pageTitle } = deleteWikiModalWrapperEl.dataset;
+
+    // eslint-disable-next-line no-new
+    new Vue({
+      el: deleteWikiModalWrapperEl,
+      data: {
+        deleteWikiUrl: '',
+      },
+      render(createElement) {
+        return createElement(deleteWikiModal, {
+          props: {
+            pageTitle,
+            deleteWikiUrl,
+            csrfToken: csrf.token,
+          },
+        });
+      },
+    });
+  }
+};

app/controllers/concerns/wiki_actions.rb

@@ -34,6 +34,8 @@ module WikiActions
     ).page(params[:page])
 
     @wiki_entries = WikiPage.group_by_directory(@wiki_pages)
+
+    render 'shared/wikis/pages'
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 
@@ -54,7 +56,7 @@ module WikiActions
       @ref = params[:version_id]
       @path = page.path
 
-      render 'show'
+      render 'shared/wikis/show'
     elsif file_blob
       send_blob(wiki.repository, file_blob, allow_caching: container.public?)
     elsif show_create_form?
@@ -63,14 +65,15 @@ module WikiActions
 
       @page = build_page(title: title)
 
-      render 'edit'
+      render 'shared/wikis/edit'
     else
-      render 'empty'
+      render 'shared/wikis/empty'
     end
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 
   def edit
+    render 'shared/wikis/edit'
   end
 
   # rubocop:disable Gitlab/ModuleWithInstanceVariables
@@ -85,11 +88,11 @@ module WikiActions
         notice: _('Wiki was successfully updated.')
       )
     else
-      render 'edit'
+      render 'shared/wikis/edit'
     end
   rescue WikiPage::PageChangedError, WikiPage::PageRenameError, Gitlab::Git::Wiki::OperationError => e
     @error = e
-    render 'edit'
+    render 'shared/wikis/edit'
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 
@@ -103,13 +106,12 @@ module WikiActions
         notice: _('Wiki was successfully updated.')
       )
     else
-      render action: "edit"
+      render 'shared/wikis/edit'
     end
   rescue Gitlab::Git::Wiki::OperationError => e
     @page = build_page(wiki_params)
     @error = e
-
-    render 'edit'
+    render 'shared/wikis/edit'
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 
@@ -119,9 +121,11 @@ module WikiActions
       @page_versions = Kaminari.paginate_array(page.versions(page: params[:page].to_i),
                                                total_count: page.count_versions)
         .page(params[:page])
+
+      render 'shared/wikis/history'
     else
       redirect_to(
-        wiki_page_path(wiki, :home),
+        wiki_path(wiki),
         notice: _("Page not found")
       )
     end
@@ -132,12 +136,12 @@ module WikiActions
   def destroy
     WikiPages::DestroyService.new(container: container, current_user: current_user).execute(page)
 
-    redirect_to wiki_page_path(wiki, :home),
+    redirect_to wiki_path(wiki),
                 status: :found,
                 notice: _("Page was successfully deleted")
   rescue Gitlab::Git::Wiki::OperationError => e
     @error = e
-    render 'edit'
+    render 'shared/wikis/edit'
   end
   # rubocop:enable Gitlab/ModuleWithInstanceVariables
 

app/helpers/gitlab_routing_helper.rb

@@ -305,8 +305,12 @@ module GitlabRoutingHelper
 
   # Wikis
 
+  def wiki_path(wiki, **options)
+    Gitlab::UrlBuilder.wiki_url(wiki, only_path: true, **options)
+  end
+
   def wiki_page_path(wiki, page, **options)
-    Gitlab::UrlBuilder.wiki_page_url(wiki, page, **options, only_path: true)
+    Gitlab::UrlBuilder.wiki_page_url(wiki, page, only_path: true, **options)
   end
 
   private

app/helpers/projects_helper.rb

@@ -544,11 +544,6 @@ module ProjectsHelper
     end
   end
 
-  def project_wiki_path_with_version(proj, page, version, is_newest)
-    url_params = is_newest ? {} : { version_id: version }
-    project_wiki_path(proj, page, url_params)
-  end
-
   def project_status_css_class(status)
     case status
     when "started"

app/helpers/wiki_helper.rb

@@ -22,7 +22,7 @@ module WikiHelper
     page_slug_split
       .map do |dir_or_page|
         current_slug = "#{current_slug}#{dir_or_page}/"
-        add_to_breadcrumb_dropdown link_to(WikiPage.unhyphenize(dir_or_page).capitalize, project_wiki_path(@project, current_slug)), location: :after
+        add_to_breadcrumb_dropdown link_to(WikiPage.unhyphenize(dir_or_page).capitalize, wiki_page_path(@wiki, current_slug)), location: :after
       end
   end
 
@@ -32,7 +32,7 @@ module WikiHelper
     content_tag(:div, class: 'alert alert-danger') do
       case error
       when WikiPage::PageChangedError
-        page_link = link_to s_("WikiPageConflictMessage|the page"), project_wiki_path(@project, @page), target: "_blank"
+        page_link = link_to s_("WikiPageConflictMessage|the page"), wiki_page_path(@wiki, @page), target: "_blank"
         concat(
           (s_("WikiPageConflictMessage|Someone edited the page the same time you did. Please check out %{page_link} and make sure your changes will not unintentionally remove theirs.") % { page_link: page_link }).html_safe
         )
@@ -45,26 +45,63 @@ module WikiHelper
   end
 
   def wiki_attachment_upload_url
-    expose_url(api_v4_projects_wikis_attachments_path(id: @project.id))
+    expose_url(api_v4_projects_wikis_attachments_path(id: @wiki.container.id))
   end
 
-  def wiki_sort_controls(project, sort, direction)
-    sort ||= ProjectWiki::TITLE_ORDER
+  def wiki_sort_controls(wiki, sort, direction)
+    sort ||= Wiki::TITLE_ORDER
     link_class = 'btn btn-default has-tooltip reverse-sort-btn qa-reverse-sort rspec-reverse-sort'
     reversed_direction = direction == 'desc' ? 'asc' : 'desc'
     icon_class = direction == 'desc' ? 'highest' : 'lowest'
 
-    link_to(project_wikis_pages_path(project, sort: sort, direction: reversed_direction),
+    link_to(wiki_path(wiki, action: :pages, sort: sort, direction: reversed_direction),
       type: 'button', class: link_class, title: _('Sort direction')) do
       sprite_icon("sort-#{icon_class}", size: 16)
     end
   end
 
   def wiki_sort_title(key)
-    if key == ProjectWiki::CREATED_AT_ORDER
+    if key == Wiki::CREATED_AT_ORDER
       s_("Wiki|Created date")
     else
       s_("Wiki|Title")
     end
   end
+
+  def wiki_empty_state_messages(wiki)
+    case wiki.container
+    when Project
+      {
+        writable: {
+          title: s_('WikiEmpty|The wiki lets you write documentation for your project'),
+          body: s_("WikiEmpty|A wiki is where you can store all the details about your project. This can include why you've created it, its principles, how to use it, and so on.")
+        },
+        issuable: {
+          title: s_('WikiEmpty|This project has no wiki pages'),
+          body: s_('WikiEmptyIssueMessage|You must be a project member in order to add wiki pages. If you have suggestions for how to improve the wiki for this project, consider opening an issue in the %{issues_link}.')
+        },
+        readonly: {
+          title: s_('WikiEmpty|This project has no wiki pages'),
+          body: s_('WikiEmpty|You must be a project member in order to add wiki pages.')
+        }
+      }
+    when Group
+      {
+        writable: {
+          title: s_('WikiEmpty|The wiki lets you write documentation for your group'),
+          body: s_("WikiEmpty|A wiki is where you can store all the details about your group. This can include why you've created it, its principles, how to use it, and so on.")
+        },
+        issuable: {
+          title: s_('WikiEmpty|This group has no wiki pages'),
+          body: s_('WikiEmptyIssueMessage|You must be a group member in order to add wiki pages. If you have suggestions for how to improve the wiki for this group, consider opening an issue in the %{issues_link}.')
+        },
+        readonly: {
+          title: s_('WikiEmpty|This group has no wiki pages'),
+          body: s_('WikiEmpty|You must be a group member in order to add wiki pages.')
+        }
+      }
+    else
+      raise NotImplementedError, "Unknown wiki container type #{wiki.container.class.name}"
+    end
+  end
 end

app/models/wiki_directory.rb

@@ -15,6 +15,6 @@ class WikiDirectory
   # Relative path to the partial to be used when rendering collections
   # of this object.
   def to_partial_path
-    'projects/wikis/wiki_directory'
+    '../shared/wikis/wiki_directory'
   end
 end

app/models/wiki_page.rb

@@ -261,8 +261,7 @@ class WikiPage
   # Relative path to the partial to be used when rendering collections
   # of this object.
   def to_partial_path
-    # TODO: Move into shared/ with https://gitlab.com/gitlab-org/gitlab/-/issues/196054
-    'projects/wikis/wiki_page'
+    '../shared/wikis/wiki_page'
   end
 
   def id

app/services/projects/update_service.rb

@@ -136,7 +136,7 @@ module Projects
 
     def ensure_wiki_exists
       ProjectWiki.new(project, project.owner).wiki
-    rescue ProjectWiki::CouldNotCreateWikiError
+    rescue Wiki::CouldNotCreateWikiError
       log_error("Could not create wiki for #{project.full_name}")
       Gitlab::Metrics.counter(:wiki_can_not_be_created_total, 'Counts the times we failed to create a wiki').increment
     end

app/views/groups/milestones/_form.html.haml

@@ -11,8 +11,8 @@
         .col-form-label.col-sm-2
           = f.label :description, "Description"
         .col-sm-10
-          = render layout: 'projects/md_preview', locals: { url: group_preview_markdown_path } do
-            = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: 'Write milestone description...', supports_autocomplete: false
+          = render layout: 'shared/md_preview', locals: { url: group_preview_markdown_path } do
+            = render 'shared/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: 'Write milestone description...', supports_autocomplete: false
           .clearfix
           .error-alert
     = render "shared/milestones/form_dates", f: f

app/views/layouts/nav/sidebar/_project.html.haml

@@ -290,7 +290,7 @@
       = render 'layouts/nav/sidebar/analytics_links', links: project_analytics_navbar_links(@project, current_user)
 
       - if project_nav_tab? :wiki
-        - wiki_url = project_wiki_path(@project, :home)
+        - wiki_url = wiki_path(@project.wiki)
         = nav_link(controller: :wikis) do
           = link_to wiki_url, class: 'shortcuts-wiki', data: { qa_selector: 'wiki_link' } do
             .nav-icon-container

app/views/projects/_wiki.html.haml

@@ -14,4 +14,4 @@
       - if can_create_wiki
         %p
           = _("Add a homepage to your wiki that contains information about your project and GitLab will display it here instead of this message.")
-        = link_to _("Create your first page"), project_wiki_path(@project, :home) + '?view=create', class: "btn btn-primary"
+        = link_to _("Create your first page"), wiki_path(@project.wiki) + '?view=create', class: "btn btn-primary"

app/views/projects/blob/_editor.html.haml

@@ -28,7 +28,7 @@
 
     .file-buttons
       - if is_markdown
-        = render 'projects/blob/markdown_buttons', show_fullscreen_button: false
+        = render 'shared/blob/markdown_buttons', show_fullscreen_button: false
       = button_tag class: 'soft-wrap-toggle btn', type: 'button', tabindex: '-1' do
         %span.no-wrap
           = custom_icon('icon_no_wrap')

app/views/projects/blob/viewers/_readme.html.haml

 = icon('info-circle fw')
 = succeed '.' do
   To learn more about this project, read
-  = link_to "the wiki", project_wiki_path(viewer.project, :home)
+  = link_to "the wiki", wiki_path(viewer.project.wiki)

app/views/projects/milestones/_form.html.haml

@@ -12,8 +12,8 @@
         .col-form-label.col-sm-2
           = f.label :description, _('Description')
         .col-sm-10
-          = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(@project) } do
-            = render 'projects/zen', f: f, attr: :description, classes: 'qa-milestone-description note-textarea', placeholder: _('Write milestone description...')
+          = render layout: 'shared/md_preview', locals: { url: preview_markdown_path(@project) } do
+            = render 'shared/zen', f: f, attr: :description, classes: 'qa-milestone-description note-textarea', placeholder: _('Write milestone description...')
             = render 'shared/notes/hints'
           .clearfix
           .error-alert

app/views/projects/tags/new.html.haml

@@ -46,8 +46,8 @@
         - replacements = { releases_page_link_start: releases_page_link_start, docs_link_start: docs_link_start, link_end: link_end }
         = s_('TagsPage|Optionally, create a public Release of your project, based on this tag. Release notes are displayed on the %{releases_page_link_start}Releases%{link_end} page. %{docs_link_start}More information%{link_end}').html_safe % replacements
 
-      = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
-        = render 'projects/zen', attr: :release_description, classes: 'note-textarea', placeholder: s_('TagsPage|Write your release notes or drag files here…'), current_text: @release_description
+      = render layout: 'shared/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
+        = render 'shared/zen', attr: :release_description, classes: 'note-textarea', placeholder: s_('TagsPage|Write your release notes or drag files here…'), current_text: @release_description
         = render 'shared/notes/hints'
   .form-actions
     = button_tag s_('TagsPage|Create tag'), class: 'btn btn-success'

app/views/projects/tags/releases/edit.html.haml

@@ -10,8 +10,8 @@
 
 = form_for(@release, method: :put, url: project_tag_release_path(@project, @tag.name),
             html: { class: 'common-note-form release-form js-quick-submit' }) do |f|
-  = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
-    = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: "Write your release notes or drag files here…"
+  = render layout: 'shared/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
+    = render 'shared/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: "Write your release notes or drag files here…"
     = render 'shared/notes/hints'
   .error-alert
   .prepend-top-default

app/views/projects/wikis/_main_links.html.haml

-- if (@page && @page.persisted?)
-  - if can?(current_user, :create_wiki, @project)
-    = link_to project_wikis_new_path(@project), class: "add-new-wiki btn btn-success", role: "button", data: { qa_selector: 'new_page_button' } do
-      = s_("Wiki|New page")
-  = link_to project_wiki_history_path(@project, @page), class: "btn", role: "button", data: { qa_selector: 'page_history_button' } do
-    = s_("Wiki|Page history")
-  - if can?(current_user, :create_wiki, @project) && @page.latest? && @valid_encoding
-    = link_to project_wiki_edit_path(@project, @page), class: "btn js-wiki-edit", role: "button", data: { qa_selector: 'edit_page_button' } do
-      = _("Edit")

app/views/projects/wikis/_wiki_page.html.haml

-= render "#{context}_wiki_page", wiki_page: wiki_page

app/views/projects/wikis/git_access.html.haml

@@ -34,4 +34,4 @@
       >> Maximum connections set to 1024
       >> Listening on 0.0.0.0:4567, CTRL+C to stop
 
-= render 'sidebar'
+= render 'shared/wikis/sidebar'

app/views/projects/_md_preview.html.haml → app/views/shared/_md_preview.html.haml

@@ -18,7 +18,7 @@
           = _("Preview")
 
       %li.md-header-toolbar.active
-        = render 'projects/blob/markdown_buttons', show_fullscreen_button: true
+        = render 'shared/blob/markdown_buttons', show_fullscreen_button: true
 
   .md-write-holder
     = yield

app/views/shared/empty_states/_wikis.html.haml

 - layout_path = 'shared/empty_states/wikis_layout'
+- messages = wiki_empty_state_messages(@wiki)
 
-- if can?(current_user, :create_wiki, @project)
-  - create_path = project_wiki_path(@project, params[:id], { view: 'create' })
+- if can?(current_user, :create_wiki, @wiki.container)
+  - create_path = wiki_page_path(@wiki, params[:id], view: 'create')
   - create_link = link_to s_('WikiEmpty|Create your first page'), create_path, class: 'btn btn-success qa-create-first-page-link', title: s_('WikiEmpty|Create your first page')
 
   = render layout: layout_path, locals: { image_path: 'illustrations/wiki_login_empty.svg' } do
     %h4.text-left
-      = s_('WikiEmpty|The wiki lets you write documentation for your project')
+      = messages.dig(:writable, :title)
     %p.text-left
-      = s_("WikiEmpty|A wiki is where you can store all the details about your project. This can include why you've created it, its principles, how to use it, and so on.")
+      = messages.dig(:writable, :body)
     = create_link
 
-- elsif can?(current_user, :read_issue, @project)
+- elsif @project && can?(current_user, :read_issue, @project)
   - issues_link = link_to s_('WikiEmptyIssueMessage|issue tracker'), project_issues_path(@project)
   - new_issue_link = link_to s_('WikiEmpty|Suggest wiki improvement'), new_project_issue_path(@project), class: 'btn btn-success', title: s_('WikiEmptyIssueMessage|Suggest wiki improvement')
 
   = render layout: layout_path, locals: { image_path: 'illustrations/wiki_logout_empty.svg' } do
     %h4
-      = s_('WikiEmpty|This project has no wiki pages')
+      = messages.dig(:issuable, :title)
     %p.text-left
-      = s_('WikiEmptyIssueMessage|You must be a project member in order to add wiki pages. If you have suggestions for how to improve the wiki for this project, consider opening an issue in the %{issues_link}.').html_safe % { issues_link: issues_link }
+      = messages.dig(:issuable, :body).html_safe % { issues_link: issues_link }
     = new_issue_link
 
 - else
   = render layout: layout_path, locals: { image_path: 'illustrations/wiki_logout_empty.svg' } do
     %h4
-      = s_('WikiEmpty|This project has no wiki pages')
+      = messages.dig(:readonly, :title)
     %p
-      = s_('WikiEmpty|You must be a project member in order to add wiki pages.')
+      = messages.dig(:readonly, :body)

app/views/shared/form_elements/_description.html.haml

@@ -18,8 +18,8 @@
 
     - if model.is_a?(Issuable)
       = render 'shared/issuable/form/template_selector', issuable: model
-    = render layout: 'projects/md_preview', locals: { url: preview_url, referenced_users: true } do
-      = render 'projects/zen', f: form, attr: :description,
+    = render layout: 'shared/md_preview', locals: { url: preview_url, referenced_users: true } do
+      = render 'shared/zen', f: form, attr: :description,
                                classes: 'note-textarea qa-issuable-form-description rspec-issuable-form-description',
                                placeholder: placeholder,
                                supports_quick_actions: supports_quick_actions

app/views/shared/notes/_edit_form.html.haml

@@ -2,8 +2,8 @@
   = form_tag '#', method: :put, class: 'edit-note common-note-form js-quick-submit' do
     = hidden_field_tag :target_id, '', class: 'js-form-target-id'
     = hidden_field_tag :target_type, '', class: 'js-form-target-type'
-    = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(project), referenced_users: true } do
-      = render 'projects/zen', attr: 'note[note]', classes: 'note-textarea js-note-text js-task-list-field', placeholder: _("Write a comment or drag your files here…")
+    = render layout: 'shared/md_preview', locals: { url: preview_markdown_path(project), referenced_users: true } do
+      = render 'shared/zen', attr: 'note[note]', classes: 'note-textarea js-note-text js-task-list-field', placeholder: _("Write a comment or drag your files here…")
       = render 'shared/notes/hints'
 
     .note-form-actions.clearfix

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

@@ -25,8 +25,8 @@
   = f.hidden_field :position
 
   .discussion-form-container.discussion-with-resolve-btn.flex-column.p-0
-    = render layout: 'projects/md_preview', locals: { url: preview_url, referenced_users: true } do
-      = render 'projects/zen', f: f,
+    = render layout: 'shared/md_preview', locals: { url: preview_url, referenced_users: true } do
+      = render 'shared/zen', f: f,
         attr: :note,
         classes: 'note-textarea js-note-text',
         placeholder: _("Write a comment or drag your files here…"),

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

@@ -19,8 +19,8 @@
           .js-collapsed{ class: ('d-none' if is_expanded) }
             = text_field_tag nil, nil, class: 'form-control', placeholder: description_placeholder, data: { qa_selector: 'description_placeholder' }
           .js-expanded{ class: ('d-none' if !is_expanded) }
-            = render layout: 'projects/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
-              = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: description_placeholder, qa_selector: 'snippet_description_field'
+            = render layout: 'shared/md_preview', locals: { url: preview_markdown_path(@project), referenced_users: true } do
+              = render 'shared/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: description_placeholder, qa_selector: 'snippet_description_field'
               = render 'shared/notes/hints'
 
       .form-group.file-editor

app/views/projects/wikis/_form.html.haml → app/views/shared/wikis/_form.html.haml

-- form_classes = 'wiki-form common-note-form prepend-top-default js-quick-submit'
-- form_classes += ' js-new-wiki-page' unless @page.persisted?
+- form_classes = %w[wiki-form common-note-form prepend-top-default js-quick-submit]
 
-= form_for [@project.namespace.becomes(Namespace), @project, @page], method: @page.persisted? ? :put : :post,
+- if @page.persisted?
+  - form_action = wiki_page_path(@wiki, @page)
+  - form_method = :put
+- else
+  - form_action = wiki_path(@wiki, action: :create)
+  - form_method = :post
+  - form_classes << 'js-new-wiki-page'
+
+= form_for @page, url: form_action, method: form_method,
            html: { class: form_classes },
            data: { uploads_path: uploads_path } do |f|
   = form_errors(@page, truncate: :title)
@@ -28,14 +35,14 @@
     .col-sm-12= f.label :format, class: 'control-label-full-width'
     .col-sm-12
       .select-wrapper
-        = f.select :format, options_for_select(ProjectWiki::MARKUPS, {selected: @page.format}), {}, class: 'form-control select-control'
+        = f.select :format, options_for_select(Wiki::MARKUPS, {selected: @page.format}), {}, class: 'form-control select-control'
         = icon('chevron-down')
 
   .form-group.row
     .col-sm-12= f.label :content, class: 'control-label-full-width'
     .col-sm-12
-      = render layout: 'projects/md_preview', locals: { url: project_wiki_preview_markdown_path(@project, @page.slug) } do
-        = render 'projects/zen', f: f, attr: :content, classes: 'note-textarea qa-wiki-content-textarea', placeholder: s_("WikiPage|Write your content or drag files here…")
+      = render layout: 'shared/md_preview', locals: { url: wiki_page_path(@wiki, @page, action: :preview_markdown) } do
+        = render 'shared/zen', f: f, attr: :content, classes: 'note-textarea qa-wiki-content-textarea', placeholder: s_("WikiPage|Write your content or drag files here…")
         = render 'shared/notes/hints'
 
       .clearfix
@@ -65,8 +72,8 @@
     - if @page && @page.persisted?
       = f.submit _("Save changes"), class: 'btn-success btn qa-save-changes-button'
       .float-right
-        = link_to _("Cancel"), project_wiki_path(@project, @page), class: 'btn btn-cancel btn-grouped'
+        = link_to _("Cancel"), wiki_page_path(@wiki, @page), class: 'btn btn-cancel btn-grouped'
     - else
       = f.submit s_("Wiki|Create page"), class: 'btn-success btn qa-create-page-button rspec-create-page-button'
       .float-right
-        = link_to _("Cancel"), project_wiki_path(@project, :home), class: 'btn btn-cancel'
+        = link_to _("Cancel"), wiki_path(@wiki), class: 'btn btn-cancel'

app/views/shared/wikis/_main_links.html.haml

+- if @page&.persisted?
+  - if can?(current_user, :create_wiki, @wiki.container)
+    = link_to wiki_path(@wiki, action: :new), class: "btn btn-success", role: "button", data: { qa_selector: 'new_page_button' } do
+      = s_("Wiki|New page")
+  = link_to wiki_page_path(@wiki, @page, action: :history), class: "btn", role: "button", data: { qa_selector: 'page_history_button' } do
+    = s_("Wiki|Page history")
+  - if can?(current_user, :create_wiki, @wiki.container) && @page.latest? && @valid_encoding
+    = link_to wiki_page_path(@wiki, @page, action: :edit), class: "btn js-wiki-edit", role: "button", data: { qa_selector: 'edit_page_button' } do
+      = _("Edit")

app/views/projects/wikis/_pages_wiki_page.html.haml → app/views/shared/wikis/_pages_wiki_page.html.haml

 %li
-  = link_to wiki_page.title, project_wiki_path(@project, wiki_page)
+  = link_to wiki_page.title, wiki_page_path(@wiki, wiki_page)
   %small (#{wiki_page.format})
   .float-right
     - if wiki_page.last_version

app/views/projects/wikis/_sidebar.html.haml → app/views/shared/wikis/_sidebar.html.haml

@@ -4,7 +4,7 @@
       %a.gutter-toggle.float-right.d-block.d-sm-block.d-md-none.js-sidebar-wiki-toggle{ href: "#" }
         = icon('angle-double-right')
 
-      - git_access_url = project_wikis_git_access_path(@project)
+      - git_access_url = wiki_path(@wiki, action: :git_access)
       = link_to git_access_url, class: active_nav_link?(path: 'wikis#git_access') ? 'active' : '', data: { qa_selector: 'clone_repository_link' } do
         = icon('cloud-download', class: 'append-right-5')
         %span= _("Clone repository")
@@ -18,5 +18,5 @@
             = render @sidebar_wiki_entries, context: 'sidebar'
       .block.w-100
         - if @sidebar_limited
-          = link_to project_wikis_pages_path(@project), class: 'btn btn-block' do
+          = link_to wiki_path(@wiki, action: :pages), class: 'btn btn-block' do
             = s_("Wiki|View All Pages")

app/views/projects/wikis/_sidebar_wiki_page.html.haml → app/views/shared/wikis/_sidebar_wiki_page.html.haml

 %li{ class: active_when(params[:id] == wiki_page.slug) }
-  = link_to project_wiki_path(@project, wiki_page) do
+  = link_to wiki_page_path(@wiki, wiki_page) do
     = wiki_page.human_title

app/views/shared/wikis/_wiki_page.html.haml

+= render "shared/wikis/#{context}_wiki_page", wiki_page: wiki_page

app/views/projects/wikis/edit.html.haml → app/views/shared/wikis/edit.html.haml

 - @content_class = "limit-container-width" unless fluid_layout
-- add_to_breadcrumbs _("Wiki"), project_wiki_path(@project, @page)
+- add_to_breadcrumbs _("Wiki"), wiki_page_path(@wiki, @page)
 - breadcrumb_title @page.persisted? ? _("Edit") : _("New")
 - page_title @page.persisted? ? _("Edit") : _("New"), @page.human_title, _("Wiki")
 
@@ -12,7 +12,7 @@
   .nav-text
     %h2.wiki-page-title
       - if @page.persisted?
-        = link_to @page.human_title, project_wiki_path(@project, @page)
+        = link_to @page.human_title, wiki_page_path(@wiki, @page)
         %span.light
           ·
           = s_("Wiki|Edit Page")
@@ -21,11 +21,11 @@
 
   .nav-controls.pb-md-3.pb-lg-0
     - if @page.persisted?
-      = link_to project_wiki_history_path(@project, @page), class: "btn" do
+      = link_to wiki_page_path(@wiki, @page, action: :history), class: "btn" do
         = s_("Wiki|Page history")
-      - if can?(current_user, :admin_wiki, @project)
-        #delete-wiki-modal-wrapper{ data: { delete_wiki_url: project_wiki_path(@project, @page), page_title: @page.human_title } }
+      - if can?(current_user, :admin_wiki, @wiki.container)
+        #delete-wiki-modal-wrapper{ data: { delete_wiki_url: wiki_page_path(@wiki, @page), page_title: @page.human_title } }
 
-= render 'form', uploads_path: wiki_attachment_upload_url
+= render 'shared/wikis/form', uploads_path: wiki_attachment_upload_url
 
-= render 'sidebar'
+= render 'shared/wikis/sidebar'

app/views/projects/wikis/history.html.haml → app/views/shared/wikis/history.html.haml

@@ -6,7 +6,7 @@
 
   .nav-text
     %h2.wiki-page-title
-      = link_to @page.human_title, project_wiki_path(@project, @page)
+      = link_to @page.human_title, wiki_page_path(@wiki, @page)
       %span.light
         ·
         = _("History")
@@ -25,8 +25,7 @@
         - commit = version
         %tr
           %td
-            = link_to project_wiki_path_with_version(@project, @page,
-                                                     commit.id, index == 0) do
+            = link_to wiki_page_path(@wiki, @page, version_id: index == 0 ? nil : commit.id) do
               = truncate_sha(commit.id)
           %td
             = commit.author_name
@@ -39,4 +38,4 @@
               = version.format
 = paginate @page_versions, theme: 'gitlab'
 
-= render 'sidebar'
+= render 'shared/wikis/sidebar'

app/views/projects/wikis/pages.html.haml → app/views/shared/wikis/pages.html.haml

-- add_to_breadcrumbs "Wiki", project_wiki_path(@project, :home)
+- add_to_breadcrumbs "Wiki", wiki_path(@wiki)
 - breadcrumb_title s_("Wiki|Pages")
 - page_title s_("Wiki|Pages"), _("Wiki")
 - sort_title = wiki_sort_title(params[:sort])
@@ -10,7 +10,7 @@
       = s_("Wiki|Wiki Pages")
 
   .nav-controls.pb-md-3.pb-lg-0
-    = link_to project_wikis_git_access_path(@project), class: 'btn' do
+    = link_to wiki_path(@wiki, action: :git_access), class: 'btn' do
       = icon('cloud-download')
       = _("Clone repository")
 
@@ -22,9 +22,9 @@
             = icon('chevron-down')
           %ul.dropdown-menu.dropdown-menu-right.dropdown-menu-selectable.dropdown-menu-sort
             %li
-              = sortable_item(s_("Wiki|Title"), project_wikis_pages_path(@project, sort: ProjectWiki::TITLE_ORDER), sort_title)
-              = sortable_item(s_("Wiki|Created date"), project_wikis_pages_path(@project, sort: ProjectWiki::CREATED_AT_ORDER), sort_title)
-        = wiki_sort_controls(@project, params[:sort], params[:direction])
+              = sortable_item(s_("Wiki|Title"), wiki_path(@wiki, action: :pages, sort: Wiki::TITLE_ORDER), sort_title)
+              = sortable_item(s_("Wiki|Created date"), wiki_path(@wiki, action: :pages, sort: Wiki::CREATED_AT_ORDER), sort_title)
+        = wiki_sort_controls(@wiki, params[:sort], params[:direction])
 
 %ul.wiki-pages-list.content-list
   = render @wiki_entries, context: 'pages'

app/views/projects/wikis/show.html.haml → app/views/shared/wikis/show.html.haml

@@ -2,7 +2,7 @@
 - breadcrumb_title @page.human_title
 - wiki_breadcrumb_dropdown_links(@page.slug)
 - page_title @page.human_title, _("Wiki")
-- add_to_breadcrumbs _("Wiki"), project_wiki_path(@project, :home)
+- add_to_breadcrumbs _("Wiki"), wiki_path(@wiki)
 
 .wiki-page-header.top-area.has-sidebar-toggle.flex-column.flex-lg-row
   %button.btn.btn-default.sidebar-toggle.js-sidebar-wiki-toggle{ role: "button", type: "button" }
@@ -16,17 +16,17 @@
         #{time_ago_with_tooltip(@page.last_version.authored_date)}
 
   .nav-controls.pb-md-3.pb-lg-0
-    = render 'main_links'
+    = render 'shared/wikis/main_links'
 
 - if @page.historical?
   .warning_message
     = s_("WikiHistoricalPage|This is an old version of this page.")
-    - most_recent_link = link_to s_("WikiHistoricalPage|most recent version"), project_wiki_path(@project, @page)
-    - history_link = link_to s_("WikiHistoricalPage|history"), project_wiki_history_path(@project, @page)
+    - most_recent_link = link_to s_("WikiHistoricalPage|most recent version"), wiki_page_path(@wiki, @page)
+    - history_link = link_to s_("WikiHistoricalPage|history"), wiki_page_path(@wiki, @page, action: :history)
     = (s_("WikiHistoricalPage|You can view the %{most_recent_link} or browse the %{history_link}.") % { most_recent_link: most_recent_link, history_link: history_link }).html_safe
 
 .prepend-top-default.append-bottom-default
   .md{ data: { qa_selector: 'wiki_page_content' } }
     = render_wiki_content(@page)
 
-= render 'sidebar'
+= render 'shared/wikis/sidebar'

ee/app/services/geo/wiki_sync_service.rb

@@ -10,7 +10,7 @@ module Geo
       start_registry_sync!
       fetch_repository
       mark_sync_as_successful
-    rescue Gitlab::Shell::Error, Gitlab::Git::BaseError, ProjectWiki::CouldNotCreateWikiError => e
+    rescue Gitlab::Shell::Error, Gitlab::Git::BaseError, Wiki::CouldNotCreateWikiError => e
       # In some cases repository does not exist, the only way to know about this is to parse the error text.
       # If it does not exist we should consider it as successfully downloaded.
       if e.message.include? Gitlab::GitAccess::ERROR_MESSAGES[:no_repo]

lib/api/wikis.rb

@@ -24,7 +24,7 @@ module API
       params :common_wiki_page_params do
         optional :format,
           type: String,
-          values: ProjectWiki::MARKUPS.values.map(&:to_s),
+          values: Wiki::MARKUPS.values.map(&:to_s),
           default: 'markdown',
           desc: 'Format of a wiki page. Available formats are markdown, rdoc, asciidoc and org'
       end

lib/gitlab/url_builder.rb

@@ -39,7 +39,7 @@ module Gitlab
         when User
           instance.user_url(object, **options)
         when Wiki
-          wiki_page_url(object, Wiki::HOMEPAGE, **options)
+          wiki_url(object, **options)
         when WikiPage
           wiki_page_url(object.wiki, object, **options)
         when ::DesignManagement::Design
@@ -78,12 +78,21 @@ module Gitlab
         end
       end
 
-      def wiki_page_url(wiki, page, **options)
-        if wiki.container.is_a?(Project)
-          instance.project_wiki_url(wiki.container, page, **options)
-        else
-          raise NotImplementedError.new("No URL builder defined for #{wiki.container.inspect} wikis")
+      def wiki_url(wiki, **options)
+        return wiki_page_url(wiki, Wiki::HOMEPAGE, **options) unless options[:action]
+
+        options[:controller] = 'projects/wikis'
+        options[:namespace_id] = wiki.container.namespace
+        options[:project_id] = wiki.container
+
+        instance.url_for(**options)
       end
+
+      def wiki_page_url(wiki, page, **options)
+        options[:action] ||= :show
+        options[:id] = page
+
+        wiki_url(wiki, **options)
       end
 
       def design_url(design, **options)

locale/gitlab.pot

@@ -25286,12 +25286,18 @@ msgstr ""
 msgid "WikiEmptyIssueMessage|Suggest wiki improvement"
 msgstr ""
 
+msgid "WikiEmptyIssueMessage|You must be a group member in order to add wiki pages. If you have suggestions for how to improve the wiki for this group, consider opening an issue in the %{issues_link}."
+msgstr ""
+
 msgid "WikiEmptyIssueMessage|You must be a project member in order to add wiki pages. If you have suggestions for how to improve the wiki for this project, consider opening an issue in the %{issues_link}."
 msgstr ""
 
 msgid "WikiEmptyIssueMessage|issue tracker"
 msgstr ""
 
+msgid "WikiEmpty|A wiki is where you can store all the details about your group. This can include why you've created it, its principles, how to use it, and so on."
+msgstr ""
+
 msgid "WikiEmpty|A wiki is where you can store all the details about your project. This can include why you've created it, its principles, how to use it, and so on."
 msgstr ""
 
@@ -25301,12 +25307,21 @@ msgstr ""
 msgid "WikiEmpty|Suggest wiki improvement"
 msgstr ""
 
+msgid "WikiEmpty|The wiki lets you write documentation for your group"
+msgstr ""
+
 msgid "WikiEmpty|The wiki lets you write documentation for your project"
 msgstr ""
 
+msgid "WikiEmpty|This group has no wiki pages"
+msgstr ""
+
 msgid "WikiEmpty|This project has no wiki pages"
 msgstr ""
 
+msgid "WikiEmpty|You must be a group member in order to add wiki pages."
+msgstr ""
+
 msgid "WikiEmpty|You must be a project member in order to add wiki pages."
 msgstr ""
 

qa/qa/page/dashboard/snippet/new.rb

@@ -31,7 +31,7 @@ module QA
             element :submit_button
           end
 
-          view 'app/views/projects/_zen.html.haml' do
+          view 'app/views/shared/_zen.html.haml' do
             # This 'element' is here only to ensure the changes in the view source aren't mistakenly changed
             element :_, "qa_selector = local_assigns.fetch(:qa_selector, '')" # rubocop:disable QA/ElementWithPattern
           end

qa/qa/page/project/issue/new.rb

@@ -14,7 +14,7 @@ module QA
           end
 
           view 'app/views/shared/form_elements/_description.html.haml' do
-            element :issue_description_textarea, "render 'projects/zen', f: form, attr: :description" # rubocop:disable QA/ElementWithPattern
+            element :issue_description_textarea, "render 'shared/zen', f: form, attr: :description" # rubocop:disable QA/ElementWithPattern
           end
 
           def add_title(title)

qa/qa/page/project/wiki/edit.rb

@@ -5,7 +5,7 @@ module QA
     module Project
       module Wiki
         class Edit < Page::Base
-          view 'app/views/projects/wikis/_form.html.haml' do
+          view 'app/views/shared/wikis/_form.html.haml' do
             element :wiki_title_textbox
             element :wiki_content_textarea
             element :wiki_message_textbox

qa/qa/page/project/wiki/show.rb

@@ -7,16 +7,16 @@ module QA
         class Show < Page::Base
           include Component::LazyLoader
 
-          view 'app/views/projects/wikis/_sidebar.html.haml' do
+          view 'app/views/shared/wikis/_sidebar.html.haml' do
             element :clone_repository_link
           end
 
-          view 'app/views/projects/wikis/show.html.haml' do
+          view 'app/views/shared/wikis/show.html.haml' do
             element :wiki_page_title
             element :wiki_page_content
           end
 
-          view 'app/views/projects/wikis/_main_links.html.haml' do
+          view 'app/views/shared/wikis/_main_links.html.haml' do
             element :new_page_button
             element :page_history_button
             element :edit_page_button

spec/features/projects/active_tabs_spec.rb

@@ -84,7 +84,7 @@ describe 'Project active tab' do
 
   context 'on project Wiki' do
     before do
-      visit project_wiki_path(project, :home)
+      visit wiki_path(project.wiki)
     end
 
     it_behaves_like 'page has active tab', 'Wiki'

spec/features/projects/features_visibility_spec.rb

@@ -94,7 +94,7 @@ describe 'Edit Project Settings' do
       {
         builds: project_job_path(project, job),
         issues: project_issues_path(project),
-        wiki: project_wiki_path(project, :home),
+        wiki: wiki_path(project.wiki),
         snippets: project_snippets_path(project),
         merge_requests: project_merge_requests_path(project)
       }

spec/features/projects/wiki/user_updates_wiki_page_spec.rb

@@ -29,7 +29,7 @@ RSpec.describe 'User updates wiki page' do
           click_on('Cancel')
         end
 
-        expect(current_path).to eq project_wiki_path(project, :home)
+        expect(current_path).to eq wiki_path(project.wiki)
       end
 
       it 'updates a page that has a path', :js do

spec/features/projects/wiki/user_views_wiki_empty_spec.rb

@@ -12,6 +12,8 @@ RSpec.describe 'User views empty wiki' do
       element = page.find('.row.empty-state')
 
       expect(element).to have_content('This project has no wiki pages')
+      expect(element).to have_content('You must be a project member')
+      expect(element).to have_content('improve the wiki for this project')
       expect(element).to have_link("issue tracker", href: project_issues_path(project))
       expect(element).to have_link("Suggest wiki improvement", href: new_project_issue_path(project))
     end
@@ -24,6 +26,7 @@ RSpec.describe 'User views empty wiki' do
       element = page.find('.row.empty-state')
 
       expect(element).to have_content('This project has no wiki pages')
+      expect(element).to have_content('You must be a project member')
       expect(element).to have_no_link('Suggest wiki improvement')
     end
   end
@@ -66,9 +69,10 @@ RSpec.describe 'User views empty wiki' do
 
     it 'show "create first page" message' do
       visit(project_wikis_path(project))
-
       element = page.find('.row.empty-state')
 
+      expect(element).to have_content('your project', count: 2)
+
       element.click_link 'Create your first page'
 
       expect(page).to have_button('Create page')

spec/frontend/wikis_spec.js

-import Wikis from '~/pages/projects/wikis/wikis';
+import Wikis from '~/pages/shared/wikis/wikis';
 import { setHTMLFixture } from './helpers/fixtures';
 
 describe('Wikis', () => {

spec/helpers/wiki_helper_spec.rb

@@ -22,12 +22,12 @@ describe WikiHelper do
   end
 
   describe '#wiki_sort_controls' do
-    let(:project) { create(:project) }
-    let(:wiki_link) { helper.wiki_sort_controls(project, sort, direction) }
+    let(:wiki) { create(:project_wiki) }
+    let(:wiki_link) { helper.wiki_sort_controls(wiki, sort, direction) }
     let(:classes) { "btn btn-default has-tooltip reverse-sort-btn qa-reverse-sort rspec-reverse-sort" }
 
     def expected_link(sort, direction, icon_class)
-      path = "/#{project.full_path}/-/wikis/pages?direction=#{direction}&sort=#{sort}"
+      path = "/#{wiki.project.full_path}/-/wikis/pages?direction=#{direction}&sort=#{sort}"
 
       helper.link_to(path, type: 'button', class: classes, title: 'Sort direction') do
         helper.sprite_icon("sort-#{icon_class}", size: 16)

spec/lib/gitlab/url_builder_spec.rb

@@ -96,6 +96,38 @@ describe Gitlab::UrlBuilder do
       end
     end
 
+    context 'when passing a Wiki' do
+      let(:wiki) { build_stubbed(:project_wiki) }
+
+      describe '#wiki_url' do
+        it 'uses the default collection action' do
+          url = subject.wiki_url(wiki)
+
+          expect(url).to eq "#{Gitlab.config.gitlab.url}/#{wiki.project.full_path}/-/wikis/home"
+        end
+
+        it 'supports a custom collection action' do
+          url = subject.wiki_url(wiki, action: :pages)
+
+          expect(url).to eq "#{Gitlab.config.gitlab.url}/#{wiki.project.full_path}/-/wikis/pages"
+        end
+      end
+
+      describe '#wiki_page_url' do
+        it 'uses the default member action' do
+          url = subject.wiki_page_url(wiki, 'foo')
+
+          expect(url).to eq "#{Gitlab.config.gitlab.url}/#{wiki.project.full_path}/-/wikis/foo"
+        end
+
+        it 'supports a custom member action' do
+          url = subject.wiki_page_url(wiki, 'foo', action: :edit)
+
+          expect(url).to eq "#{Gitlab.config.gitlab.url}/#{wiki.project.full_path}/-/wikis/foo/edit"
+        end
+      end
+    end
+
     context 'when passing a DesignManagement::Design' do
       let(:design) { build_stubbed(:design) }
 

spec/models/wiki_directory_spec.rb

@@ -40,7 +40,7 @@ RSpec.describe WikiDirectory do
     it 'returns the relative path to the partial to be used' do
       directory = build(:wiki_directory)
 
-      expect(directory.to_partial_path).to eq('projects/wikis/wiki_directory')
+      expect(directory.to_partial_path).to eq('../shared/wikis/wiki_directory')
     end
   end
 end

spec/models/wiki_page_spec.rb

@@ -781,7 +781,7 @@ describe WikiPage do
 
   describe '#to_partial_path' do
     it 'returns the relative path to the partial to be used' do
-      expect(subject.to_partial_path).to eq('projects/wikis/wiki_page')
+      expect(subject.to_partial_path).to eq('../shared/wikis/wiki_page')
     end
   end
 

spec/services/projects/update_service_spec.rb

@@ -254,7 +254,7 @@ describe Projects::UpdateService do
       it 'logs an error and creates a metric when wiki can not be created' do
         project.project_feature.update(wiki_access_level: ProjectFeature::DISABLED)
 
-        expect_any_instance_of(ProjectWiki).to receive(:wiki).and_raise(ProjectWiki::CouldNotCreateWikiError)
+        expect_any_instance_of(ProjectWiki).to receive(:wiki).and_raise(Wiki::CouldNotCreateWikiError)
         expect_any_instance_of(described_class).to receive(:log_error).with("Could not create wiki for #{project.full_name}")
 
         counter = double(:counter)

spec/views/layouts/nav/sidebar/_project.html.haml_spec.rb

@@ -66,7 +66,7 @@ describe 'layouts/nav/sidebar/_project' do
       it 'shows the wiki tab with the wiki internal link' do
         render
 
-        expect(rendered).to have_link('Wiki', href: project_wiki_path(project, :home))
+        expect(rendered).to have_link('Wiki', href: wiki_path(project.wiki))
       end
     end
 
@@ -76,7 +76,7 @@ describe 'layouts/nav/sidebar/_project' do
       it 'does not show the wiki tab' do
         render
 
-        expect(rendered).not_to have_link('Wiki', href: project_wiki_path(project, :home))
+        expect(rendered).not_to have_link('Wiki', href: wiki_path(project.wiki))
       end
     end
   end
@@ -104,7 +104,7 @@ describe 'layouts/nav/sidebar/_project' do
       it 'does not show the external wiki tab' do
         render
 
-        expect(rendered).not_to have_link('External Wiki', href: project_wiki_path(project, :home))
+        expect(rendered).not_to have_link('External Wiki')
       end
     end
   end