Adds composer seeds

Add seeds to create a few composer
packages and import some composer
packages.

db/fixtures/development/30_composer_packages.rb

+# frozen_string_literal: true
+
+require './spec/support/sidekiq_middleware'
+
+class Gitlab::Seeder::ComposerPackages
+  def group
+    @group ||= Group.find_by(path: 'composer')
+
+    unless @group
+      @group = Group.create!(
+        name: 'Composer',
+        path: 'composer',
+        description: FFaker::Lorem.sentence
+      )
+
+      @group.add_owner(user)
+      @group.create_namespace_settings
+    end
+
+    @group
+  end
+
+  def user
+    @user ||= User.first
+  end
+
+  def create_real_project!(url)
+    project_path = url.split('/').last
+
+    project_path.gsub!(".git", "")
+
+    project = group.projects.find_by(name: project_path.titleize)
+
+    return project if project.present?
+
+    params = {
+      import_url: url,
+      namespace_id: group.id,
+      name: project_path.titleize,
+      description: FFaker::Lorem.sentence,
+      visibility_level: Gitlab::VisibilityLevel.values.sample,
+      skip_disk_validation: true
+    }
+
+    Sidekiq::Worker.skipping_transaction_check do
+      project = ::Projects::CreateService.new(user, params).execute
+
+      # Seed-Fu runs this entire fixture in a transaction, so the `after_commit`
+      # hook won't run until after the fixture is loaded. That is too late
+      # since the Sidekiq::Testing block has already exited. Force clearing
+      # the `after_commit` queue to ensure the job is run now.
+      project.send(:_run_after_commit_queue)
+      project.import_state.send(:_run_after_commit_queue)
+
+      # Expire repository cache after import to ensure
+      # valid_repo? call below returns a correct answer
+      project.repository.expire_all_method_caches
+    end
+
+    if project.valid? && project.valid_repo?
+      print '.'
+      return project
+    else
+      puts project.errors.full_messages
+      print 'F'
+      return nil
+    end
+  end
+end
+
+COMPOSER_PACKAGES = {
+  'https://github.com/php-fig/log.git' => [
+    { branch: 'master' },
+    { tag: 'v1.5.2' }
+  ],
+  'https://github.com/ryssbowh/craft-themes.git' => [
+    { tag: '1.0.2' }
+  ],
+  'https://github.com/php-fig/http-message.git' => [
+    { tag: '1.0.1' }
+  ],
+  'https://github.com/doctrine/instantiator.git' => [
+    { branch: '1.4.x' }
+  ]
+}.freeze
+
+Gitlab::Seeder.quiet do
+  flag = 'SEED_COMPOSER'
+
+  unless ENV[flag]
+    puts "Use the `#{flag}` environment variable to seed composer packages"
+    next
+  end
+
+  Sidekiq::Testing.inline! do
+    COMPOSER_PACKAGES.each do |path, versions|
+      project = Gitlab::Seeder::ComposerPackages.new.create_real_project!(path)
+
+      versions.each do |version|
+        params = {}
+
+        if version[:branch]
+          params[:branch] = project.repository.find_branch(version[:branch])
+        elsif version[:tag]
+          params[:tag] = project.repository.find_tag(version[:tag])
+        end
+
+        if params[:branch].nil? && params[:tag].nil?
+          puts "version #{version.inspect} not found"
+          next
+        end
+
+        ::Packages::Composer::CreatePackageService
+          .new(project, project.owner, params)
+          .execute
+
+        puts "version #{version.inspect} created!"
+      end
+    end
+  end
+end