Add new DB seed to generate MR's for the compliance dashboard

This should create new MR's for existing projects, as well as their
associated pipelines and approvers

ee/db/fixtures/development/32_compliance_dashboard_merge_requests.rb

+# frozen_string_literal: true
+
+require './spec/support/sidekiq_middleware'
+
+class Gitlab::Seeder::ComplianceDashboardMergeRequests
+  PIPELINE_STATUSES = %w[success failed].freeze
+
+  def initialize(project)
+    @project = project
+  end
+
+  def seed!
+    used_statuses = []
+
+    merge_requests.each do |merge_request|
+      branch = merge_request.source_branch
+      commit = merge_request.diff_head_sha || @project.commit('HEAD')
+      status = PIPELINE_STATUSES.reject { |s| used_statuses.include?(s) }.sample
+
+      create_pipeline!(@project, branch, commit, status).tap do |pipeline|
+        merge_request.update!(head_pipeline_id: pipeline.id)
+      end
+
+      EventCreateService.new.merge_mr(merge_request, merge_request.author)
+
+      used_statuses.append(status)
+
+      print '.'
+    end
+  end
+
+  def merge_requests
+    maintainer = new_maintainer
+    developer = new_developer
+
+    Array.new(2).map do
+      amount = rand(1..2)
+      approvers = [{ user: maintainer }]
+
+      if amount === 2
+        approvers = [{ user: developer }, { user: maintainer }]
+      end
+
+      create_merge_request!(approvers)
+    end
+  end
+
+  def create_merge_request!(approvals)
+    opts = {
+      title: FFaker::Lorem.sentence(6),
+      description: FFaker::Lorem.sentence,
+      source_branch: "#{FFaker::Lorem.word}-#{SecureRandom.hex(5)}",
+      target_branch: 'master',
+      state: :opened
+    }
+
+    maintainer = @project.team.maintainers.sample || User.admins.first
+
+    Sidekiq::Worker.skipping_transaction_check do
+      merge_request = MergeRequests::CreateService.new(@project, maintainer, opts).execute
+      merge_request.save!
+      merge_request.approvals.create(approvals)
+      merge_request.state = :merged
+
+      merge_request
+    end
+  end
+
+  def create_pipeline!(project, ref, commit, status)
+    project.ci_pipelines.create!(sha: commit.id, ref: ref, source: :push, status: status)
+  end
+
+  def new_developer
+    developer = new_user
+
+    @project.add_developer(developer)
+
+    developer
+  end
+
+  def new_maintainer
+    maintainer = new_user
+
+    @project.add_maintainer(maintainer)
+
+    maintainer
+  end
+
+  def new_user
+    name = FFaker::Name.name
+    FactoryBot.create(
+      :user,
+      name: name,
+      username: FFaker::Internet.user_name(name),
+      email: FFaker::Internet.email
+    )
+  end
+end
+
+Gitlab::Seeder.quiet do
+  projects = Project
+      .non_archived
+      .with_merge_requests_enabled
+      .not_mass_generated
+      .reject(&:empty_repo?)
+
+  projects.each do |project|
+    merge_requests = Gitlab::Seeder::ComplianceDashboardMergeRequests.new(project)
+    merge_requests.seed!
+  end
+end