Show `New Issue` link for projects

When a user is not logged in, we want to show the `New Issue` link so
he gets directed to the login flow first.

When a project is archived, we never want to show the link.

app/helpers/issues_helper.rb

@@ -126,6 +126,17 @@ module IssuesHelper
     link_to link_text, path
   end
 
+  def show_new_issue_link?(project)
+    return false unless project
+    return false if project.archived?
+
+    # We want to show the link to users that are not signed in, that way they
+    # get directed to the sign-in/sign-up flow and afterwards to the new issue page.
+    return true unless current_user
+
+    can?(current_user, :create_issue, project)
+  end
+
   # Required for Banzai::Filter::IssueReferenceFilter
   module_function :url_for_issue
   module_function :url_for_internal_issue

app/views/layouts/header/_new_dropdown.haml

@@ -19,7 +19,7 @@
           %li.dropdown-bold-header GitLab
 
       - if @project&.persisted?
-        - create_project_issue = can?(current_user, :create_issue, @project)
+        - create_project_issue = show_new_issue_link?(@project)
         - merge_project = merge_request_source_project_for_project(@project)
         - create_project_snippet = can?(current_user, :create_project_snippet, @project)
         - if create_project_issue || merge_project || create_project_snippet

app/views/projects/buttons/_dropdown.html.haml

-- can_create_issue = show_new_issue_link?
+- can_create_issue = show_new_issue_link?(@project)
 - can_create_project_snippet = can?(current_user, :create_project_snippet, @project)
 - can_push_code = can?(current_user, :push_code, @project)
 - create_mr_from_new_fork = can?(current_user, :fork_project, @project) && can?(current_user, :create_merge_request_in, @project)

app/views/projects/issues/_nav_btns.html.haml

@@ -2,7 +2,7 @@
   = icon('rss')
 - if @can_bulk_update
   = button_tag "Edit issues", class: "btn btn-default append-right-10 js-bulk-update-toggle"
-- if !current_user || can?(current_user, :create_issue, @project)
+- if show_new_issue_link?(@project)
   = link_to "New issue", new_project_issue_path(@project,
                                                 issue: { assignee_id: finder.assignee.try(:id),
                                                          milestone_id: finder.milestones.first.try(:id) }),

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

@@ -7,6 +7,7 @@
 
 - can_update_issue = can?(current_user, :update_issue, @issue)
 - can_report_spam = @issue.submittable_as_spam_by?(current_user)
+- can_create_issue = show_new_issue_link?(@project)
 
 .detail-page-header
   .detail-page-header-body
@@ -42,16 +43,18 @@
             %li= link_to 'Reopen issue', issue_path(@issue, issue: { state_event: :reopen }, format: 'json'), class: "btn-reopen js-btn-issue-action #{issue_button_visibility(@issue, false)}", title: 'Reopen issue'
           - if can_report_spam
             %li= link_to 'Submit as spam', mark_as_spam_project_issue_path(@project, @issue), method: :post, class: 'btn-spam', title: 'Submit as spam'
-          - if can_update_issue || can_report_spam
-            %li.divider
-          %li= link_to 'New issue', new_project_issue_path(@project), title: 'New issue', id: 'new_issue_link'
+          - if can_create_issue
+            - if can_update_issue || can_report_spam
+              %li.divider
+            %li= link_to 'New issue', new_project_issue_path(@project), title: 'New issue', id: 'new_issue_link'
 
     = render 'shared/issuable/close_reopen_button', issuable: @issue, can_update: can_update_issue
 
     - if can_report_spam
       = link_to 'Submit as spam', mark_as_spam_project_issue_path(@project, @issue), method: :post, class: 'hidden-xs hidden-sm btn btn-grouped btn-spam', title: 'Submit as spam'
-    = link_to new_project_issue_path(@project), class: 'hidden-xs hidden-sm btn btn-grouped new-issue-link btn-new btn-inverted', title: 'New issue', id: 'new_issue_link' do
-      New issue
+    - if can_create_issue
+      = link_to new_project_issue_path(@project), class: 'hidden-xs hidden-sm btn btn-grouped new-issue-link btn-new btn-inverted', title: 'New issue', id: 'new_issue_link' do
+        New issue
 
 .issue-details.issuable-details
   .detail-page-description.content-block

app/views/shared/milestones/_sidebar.html.haml

@@ -72,7 +72,7 @@
         .title.hide-collapsed
           Issues
           %span.badge= milestone.issues_visible_to_user(current_user).count
-          - if project && can?(current_user, :create_issue, project)
+          - if show_new_issue_link?(project)
             = link_to new_project_issue_path(project, issue: { milestone_id: milestone.id }), class: "pull-right", title: "New Issue" do
               New issue
         .value.hide-collapsed.bold

spec/features/projects/commit/cherry_pick_spec.rb

@@ -89,4 +89,14 @@ describe 'Cherry-pick Commits' do
       expect(page).to have_content('The commit has been successfully cherry-picked.')
     end
   end
+
+  context 'when the project is archived' do
+    let(:project) { create(:project, :repository, namespace: group, archived: true) }
+
+    it 'does not show the cherry-pick link' do
+      find('.header-action-buttons a.dropdown-toggle').click
+
+      expect(page).not_to have_css("a[href='#modal-cherry-pick-commit']")
+    end
+  end
 end

spec/features/projects/commit/user_reverts_commit_spec.rb

@@ -10,13 +10,16 @@ describe 'User reverts a commit', :js do
     sign_in(user)
 
     visit(project_commit_path(project, sample_commit.id))
+  end
 
+  def click_revert
     find('.header-action-buttons .dropdown').click
     find('a[href="#modal-revert-commit"]').click
   end
 
   context 'without creating a new merge request' do
     before do
+      click_revert
       page.within('#modal-revert-commit') do
         uncheck('create_merge_request')
         click_button('Revert')
@@ -44,6 +47,10 @@ describe 'User reverts a commit', :js do
   end
 
   context 'with creating a new merge request' do
+    before do
+      click_revert
+    end
+
     it 'reverts a commit' do
       page.within('#modal-revert-commit') do
         click_button('Revert')
@@ -53,4 +60,14 @@ describe 'User reverts a commit', :js do
       expect(page).to have_content("From revert-#{Commit.truncate_sha(sample_commit.id)} into master")
     end
   end
+
+  context 'when the project is archived' do
+    let(:project) { create(:project, :repository, namespace: user.namespace, archived: true) }
+
+    it 'does not show the revert link' do
+      find('.header-action-buttons .dropdown').click
+
+      expect(page).not_to have_link('Revert')
+    end
+  end
 end

spec/features/projects/issues/user_views_issue_spec.rb

@@ -6,11 +6,27 @@ describe "User views issue" do
   set(:issue) { create(:issue, project: project, description: "# Description header", author: user) }
 
   before do
-    project.add_guest(user)
+    project.add_developer(user)
     sign_in(user)
 
     visit(project_issue_path(project, issue))
   end
 
   it { expect(page).to have_header_with_correct_id_and_link(1, "Description header", "description-header") }
+
+  it { expect(page).to have_link('New issue') }
+
+  it { expect(page).to have_button('Create merge request') }
+
+  it { expect(page).to have_link('Close issue') }
+
+  context 'when the project is archived' do
+    let(:project) { create(:project, :public, archived: true) }
+
+    it { expect(page).not_to have_link('New issue') }
+
+    it { expect(page).not_to have_button('Create merge request') }
+
+    it { expect(page).not_to have_link('Close issue') }
+  end
 end

spec/helpers/issues_helper_spec.rb

@@ -163,4 +163,26 @@ describe IssuesHelper do
       end
     end
   end
+
+  describe '#show_new_issue_link?' do
+    before do
+      allow(helper).to receive(:current_user)
+    end
+
+    it 'is false when no project there is no project' do
+      expect(helper.show_new_issue_link?(nil)).to be_falsey
+    end
+
+    it 'is true when there is a project and no logged in user' do
+      expect(helper.show_new_issue_link?(build(:project))).to be_truthy
+    end
+
+    it 'is true when the current user does not have access to the project' do
+      project = build(:project)
+      allow(helper).to receive(:current_user).and_return(project.owner)
+
+      expect(helper).to receive(:can?).with(project.owner, :create_issue, project).and_return(true)
+      expect(helper.show_new_issue_link?(project)).to be_truthy
+    end
+  end
 end