Make post migration EE-specific

Fixes https://gitlab.com/gitlab-org/gitlab/issues/32725

db/post_migrate/20190909141517_update_cs_vulnerability_confidence_column.rb

@@ -14,6 +14,9 @@ class UpdateCsVulnerabilityConfidenceColumn < ActiveRecord::Migration[5.2]
   # 137_424 records to be updated on GitLab.com,
   # giving us an estimated runtime of 12 hours.
   def up
+    # no-op in CE
+    return unless Gitlab.ee?
+
     migration = Gitlab::BackgroundMigration::UpdateVulnerabilityConfidence
     migration_name = migration.to_s.demodulize
     relation = migration::Occurrence.container_scanning_reports_with_medium_confidence

lib/gitlab/background_migration/update_vulnerability_confidence.rb → ee/lib/gitlab/background_migration/update_vulnerability_confidence.rb

 # frozen_string_literal: true
-# rubocop:disable Style/Documentation
+
 module Gitlab
   module BackgroundMigration
     class UpdateVulnerabilityConfidence

spec/lib/gitlab/background_migration/update_vulnerability_confidence_spec.rb → ee/spec/lib/gitlab/background_migration/update_vulnerability_confidence_spec.rb

@@ -7,9 +7,6 @@ describe Gitlab::BackgroundMigration::UpdateVulnerabilityConfidence, :migration,
   let(:identifiers) { table(:vulnerability_identifiers) }
   let(:scanners) { table(:vulnerability_scanners) }
   let(:projects) { table(:projects) }
-  let(:vul1) { attributes_for(:vulnerabilities_occurrence) }
-  let(:vul2) { attributes_for(:vulnerabilities_occurrence) }
-  let(:vul3) { attributes_for(:vulnerabilities_occurrence) }
 
   it 'updates confidence level for container scanning reports' do
     projects.create!(id: 123, namespace_id: 12, name: 'gitlab', path: 'gitlab')
@@ -25,34 +22,35 @@ describe Gitlab::BackgroundMigration::UpdateVulnerabilityConfidence, :migration,
 
     scanners.create!(id: 6, project_id: 123, external_id: 'clair', name: 'Security Scanner')
 
-    vulnerabilities.create!(container_scanning_vuln_params(vul1, 1))
-    vulnerabilities.create!(container_scanning_vuln_params(vul2, 2))
-    vulnerabilities.create!(container_scanning_vuln_params(vul3, 3).merge(report_type: 1))
+    vul1 = vulnerabilities.create!(container_scanning_vuln_params(1))
+    vulnerabilities.create!(container_scanning_vuln_params(2))
+    vul3 = vulnerabilities.create!(container_scanning_vuln_params(3).merge(report_type: 1))
 
     expect(vulnerabilities.where(report_type: 2, confidence: 2).count). to eq(0)
     expect(vulnerabilities.exists?(report_type: 2, confidence: 5)).to be_truthy
 
-    described_class.new.perform(1, 3)
+    described_class.new.perform(vul1.id, vul3.id)
 
     expect(vulnerabilities.exists?(report_type: 2, confidence: 5)).to be_falsy
     expect(vulnerabilities.where(report_type: 2, confidence: 2).count). to eq(2)
   end
 
-  def container_scanning_vuln_params(vul, primary_identifier_id)
+  def container_scanning_vuln_params(primary_identifier_id)
+    attrs = attributes_for(:vulnerabilities_occurrence)
+
     {
-      id: vul[:id],
       severity: 2,
       confidence: 5,
       report_type: 2,
       project_id: 123,
       scanner_id: 6,
       primary_identifier_id: primary_identifier_id,
-      project_fingerprint: vul[:project_fingerprint],
-      location_fingerprint: vul[:location_fingerprint],
-      uuid: vul[:uuid],
-      name: vul[:name],
+      project_fingerprint: attrs[:project_fingerprint],
+      location_fingerprint: attrs[:location_fingerprint],
+      uuid: attrs[:uuid],
+      name: attrs[:name],
       metadata_version: '1.3',
-      raw_metadata: vul3[:raw_metadata]
+      raw_metadata: attrs[:raw_metadata]
     }
   end
 end