Use pages_metadatum in Project#pages_deployed?

app/models/project.rb

@@ -1740,7 +1740,7 @@ class Project < ApplicationRecord
   end
 
   def pages_deployed?
-    Dir.exist?(public_pages_path)
+    pages_metadatum&.deployed?
   end
 
   def pages_group_url
@@ -1773,10 +1773,6 @@ class Project < ApplicationRecord
     File.join(Settings.pages.path, full_path)
   end
 
-  def public_pages_path
-    File.join(pages_path, 'public')
-  end
-
   def pages_available?
     Gitlab.config.pages.enabled
   end

spec/models/project_spec.rb

@@ -1698,9 +1698,9 @@ RSpec.describe Project do
 
     subject { project.pages_deployed? }
 
-    context 'if public folder does exist' do
+    context 'if pages are deployed' do
       before do
-        allow(Dir).to receive(:exist?).with(project.public_pages_path).and_return(true)
+        project.pages_metadatum.update_column(:deployed, true)
       end
 
       it { is_expected.to be_truthy }

spec/services/projects/update_pages_service_spec.rb

@@ -53,7 +53,7 @@ RSpec.describe Projects::UpdatePagesService do
 
         # Check that all expected files are extracted
         %w[index.html zero .hidden/file].each do |filename|
-          expect(File.exist?(File.join(project.public_pages_path, filename))).to be_truthy
+          expect(File.exist?(File.join(project.pages_path, 'public', filename))).to be_truthy
         end
       end
 
@@ -65,15 +65,17 @@ RSpec.describe Projects::UpdatePagesService do
       it 'removes pages after destroy' do
         expect(PagesWorker).to receive(:perform_in)
         expect(project.pages_deployed?).to be_falsey
+        expect(Dir.exist?(File.join(project.pages_path))).to be_falsey
 
         expect(execute).to eq(:success)
 
         expect(project.pages_metadatum).to be_deployed
         expect(project.pages_deployed?).to be_truthy
+        expect(Dir.exist?(File.join(project.pages_path))).to be_truthy
 
         project.destroy
 
-        expect(project.pages_deployed?).to be_falsey
+        expect(Dir.exist?(File.join(project.pages_path))).to be_falsey
         expect(ProjectPagesMetadatum.find_by_project_id(project)).to be_nil
       end