Added support for zip archives in pages

The ZIP archive size is calculated from artifacts metadata that should get uploaded for new artifacts

app/services/projects/update_pages_service.rb

@@ -2,6 +2,7 @@ module Projects
   class UpdatePagesService < BaseService
     BLOCK_SIZE = 32.kilobytes
     MAX_SIZE = 1.terabyte
+    SITE_PATH = 'public/'
 
     attr_reader :build
 
@@ -60,13 +61,42 @@ module Projects
     end
 
     def extract_archive!(temp_path)
+      if artifacts.ends_with?('.tar.gz') || artifacts.ends_with?('.tgz')
+        extract_tar_archive!(temp_path)
+      elsif artifacts.ends_with?('.zip')
+        extract_zip_archive!(temp_path)
+      else
+        raise 'unsupported artifacts format'
+      end
+    end
+
+    def extract_tar_archive!(temp_path)
       results = Open3.pipeline(%W(gunzip -c #{artifacts}),
                                %W(dd bs=#{BLOCK_SIZE} count=#{blocks}),
-                               %W(tar -x -C #{temp_path} public/),
+                               %W(tar -x -C #{temp_path} #{SITE_PATH}),
                                err: '/dev/null')
       raise 'pages failed to extract' unless results.compact.all?(&:success?)
     end
 
+    def extract_zip_archive!(temp_path)
+      raise 'missing artifacts metadata' unless build.artifacts_metadata?
+
+      # Calculate page size after extract
+      public_entry = build.artifacts_metadata_entry(SITE_PATH, recursive: true)
+
+      if public_entry.total_size > max_size
+        raise "artifacts for pages are too large: #{total_size}"
+      end
+
+      # Requires UnZip at least 6.00 Info-ZIP.
+      # -n  never overwrite existing files
+      # We add * to end of SITE_PATH, because we want to extract SITE_PATH and all subdirectories
+      site_path = File.join(SITE_PATH, '*')
+      unless system(*%W(unzip -n #{artifacts} #{site_path} -d #{temp_path}))
+        raise 'pages failed to extract'
+      end
+    end
+
     def deploy_page!(archive_public_path)
       # Do atomic move of pages
       # Move and removal may not be atomic, but they are significantly faster then extracting and removal
@@ -91,10 +121,11 @@ module Projects
 
     def blocks
       # Calculate dd parameters: we limit the size of pages
-      max_size = current_application_settings.max_pages_size.megabytes
-      max_size ||= MAX_SIZE
-      blocks = 1 + max_size / BLOCK_SIZE
-      blocks
+      1 + max_size / BLOCK_SIZE
+    end
+
+    def max_size
+      current_application_settings.max_pages_size.megabytes || MAX_SIZE
     end
 
     def tmp_path

spec/services/projects/update_pages_worker_spec.rb

@@ -4,9 +4,7 @@ describe Projects::UpdatePagesService do
   let(:project) { create :project }
   let(:commit) { create :ci_commit, project: project, sha: project.commit('HEAD').sha }
   let(:build) { create :ci_build, commit: commit, ref: 'HEAD' }
-  let(:file) { fixture_file_upload(Rails.root + 'spec/fixtures/pages.tar.gz', 'application/octet-stream') }
-  let(:empty_file) { fixture_file_upload(Rails.root + 'spec/fixtures/pages_empty.tar.gz', 'application/octet-stream') }
-  let(:invalid_file) { fixture_file_upload(Rails.root + 'spec/fixtures/dk.png', 'application/octet-stream') }
+  let(:invalid_file) { fixture_file_upload(Rails.root + 'spec/fixtures/dk.png') }
   
   subject { described_class.new(project, build) }
 
@@ -14,8 +12,19 @@ describe Projects::UpdatePagesService do
     project.remove_pages
   end
 
-  context 'for valid file' do
-    before { build.update_attributes(artifacts_file: file) }
+  %w(tar.gz zip).each do |format|
+    context "for valid #{format}" do
+      let(:file) { fixture_file_upload(Rails.root + "spec/fixtures/pages.#{format}") }
+      let(:empty_file) { fixture_file_upload(Rails.root + "spec/fixtures/pages_empty.#{format}") }
+      let(:metadata) do
+        filename = Rails.root + "spec/fixtures/pages.#{format}.meta"
+        fixture_file_upload(filename) if File.exists?(filename)
+      end
+
+      before do
+        build.update_attributes(artifacts_file: file)
+        build.update_attributes(artifacts_metadata: metadata)
+      end
 
       it 'succeeds' do
         expect(project.pages_url).to be_nil
@@ -36,6 +45,18 @@ describe Projects::UpdatePagesService do
         project.destroy
         expect(Dir.exist?(project.public_pages_path)).to be_falsey
       end
+
+      it 'fails if sha on branch is not latest' do
+        commit.update_attributes(sha: 'old_sha')
+        build.update_attributes(artifacts_file: file)
+        expect(execute).to_not eq(:success)
+      end
+
+      it 'fails for empty file fails' do
+        build.update_attributes(artifacts_file: empty_file)
+        expect(execute).to_not eq(:success)
+      end
+    end
   end
 
   it 'fails to remove project pages when no pages is deployed' do
@@ -48,22 +69,11 @@ describe Projects::UpdatePagesService do
     expect(execute).to_not eq(:success)
   end
 
-  it 'fails for empty file fails' do
-    build.update_attributes(artifacts_file: empty_file)
-    expect(execute).to_not eq(:success)
-  end
-
   it 'fails for invalid archive' do
     build.update_attributes(artifacts_file: invalid_file)
     expect(execute).to_not eq(:success)
   end
   
-  it 'fails if sha on branch is not latest' do
-    commit.update_attributes(sha: 'old_sha')
-    build.update_attributes(artifacts_file: file)
-    expect(execute).to_not eq(:success)
-  end
-  
   def execute
     subject.execute[:status]
   end