Wiki: Add author avatar and link

Add author avatar and link to a wiki's last modified info

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

@@ -7,7 +7,7 @@
   .nav-text.flex-fill
     %span.wiki-last-edit-by
       - if @page.last_version
-        = (_("Last edited by %{name}") % { name: "<strong>#{@page.last_version.author_name}</strong>" }).html_safe
+        = html_escape(_("Last edited by %{link_start}%{avatar} %{name}%{link_end}")) % { avatar: image_tag(avatar_icon_for_email(@page.last_version.author_email, 24), class: "avatar s24 float-none gl-mr-0!"), name: "<strong>#{@page.last_version.author_name}</strong>".html_safe, link_start: "<a href='#{@page.last_version.author_url}'>".html_safe, link_end: '</a>'.html_safe }
         = time_ago_with_tooltip(@page.last_version.authored_date)
 
   .nav-controls.pb-md-3.pb-lg-0

changelogs/unreleased/288325-wiki-avatar.yml

+---
+title: 'Wiki: Add author avatar and link'
+merge_request: 51273
+author:
+type: changed

lib/gitlab/git/wiki_page_version.rb

@@ -10,7 +10,12 @@ module Gitlab
         @format = format
       end
 
-      delegate :message, :sha, :id, :author_name, :authored_date, to: :commit
+      delegate :message, :sha, :id, :author_name, :author_email, :authored_date, to: :commit
+
+      def author_url
+        user = ::User.find_by_any_email(author_email)
+        user.nil? ? "mailto:#{author_email}" : Gitlab::UrlBuilder.build(user)
+      end
     end
   end
 end

locale/gitlab.pot

@@ -16498,7 +16498,7 @@ msgstr ""
 msgid "Last edited %{date}"
 msgstr ""
 
-msgid "Last edited by %{name}"
+msgid "Last edited by %{link_start}%{avatar} %{name}%{link_end}"
 msgstr ""
 
 msgid "Last item before this page loaded in your browser:"

spec/lib/gitlab/git/wiki_page_version_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Git::WikiPageVersion do
+  let_it_be(:project) { create(:project, :public, :repository) }
+  let(:user) { create(:user, username: 'someone') }
+
+  describe '#author_url' do
+    subject(:author_url) { described_class.new(commit, nil).author_url }
+
+    context 'user exists in gitlab' do
+      let(:commit) { create(:commit, project: project, author: user) }
+
+      it 'returns the profile link of the user' do
+        expect(author_url).to eq('http://localhost/someone')
+      end
+    end
+
+    context 'user does not exist in gitlab' do
+      let(:commit) { create(:commit, project: project, author_email: "someone@somewebsite.com") }
+
+      it 'returns a mailto: url' do
+        expect(author_url).to eq('mailto:someone@somewebsite.com')
+      end
+    end
+  end
+end