Geo - Store the invalid checksum when we have a mismatch

ee/app/models/geo/project_registry.rb

@@ -17,7 +17,9 @@ class Geo::ProjectRegistry < Geo::BaseRegistry
   ignore_column :wiki_verification_checksum
 
   sha_attribute :repository_verification_checksum_sha
+  sha_attribute :repository_verification_checksum_mismatched
   sha_attribute :wiki_verification_checksum_sha
+  sha_attribute :wiki_verification_checksum_mismatched
 
   belongs_to :project
 

ee/app/services/geo/repository_verification_secondary_service.rb

@@ -48,7 +48,7 @@ module Geo
       checksum = calculate_checksum(repository)
 
       if mismatch?(checksum)
-        update_registry!(mismatch: true, failure: "#{type.to_s.capitalize} checksum mismatch")
+        update_registry!(mismatch: checksum, failure: "#{type.to_s.capitalize} checksum mismatch")
       else
         update_registry!(checksum: checksum)
       end
@@ -56,7 +56,7 @@ module Geo
       update_registry!(failure: "Error calculating #{type} checksum", exception: e)
     end
 
-    def update_registry!(checksum: nil, mismatch: false, failure: nil, exception: nil)
+    def update_registry!(checksum: nil, mismatch: nil, failure: nil, exception: nil)
       reverify, verification_retry_count =
         if mismatch || failure.present?
           log_error(failure, exception, type: type)
@@ -72,7 +72,8 @@ module Geo
 
       registry.update!(
         "#{type}_verification_checksum_sha" => checksum,
-        "#{type}_checksum_mismatch" => mismatch,
+        "#{type}_verification_checksum_mismatched" => mismatch,
+        "#{type}_checksum_mismatch" => mismatch.present?,
         "last_#{type}_verification_ran_at" => Time.now,
         "last_#{type}_verification_failure" => failure,
         "#{type}_verification_retry_count" => verification_retry_count,

ee/changelogs/unreleased/5862-geo-store-the-checksum-when-we-have-have-a-checksum-mismatch.yml

+---
+title: Geo - Store the invalid checksum when we have a mismatch
+merge_request: 10101
+author:
+type: changed

ee/db/geo/migrate/20190314201959_add_checksum_mismatched_columnds_to_project_registry.rb

+# frozen_string_literal: true
+
+class AddChecksumMismatchedColumndsToProjectRegistry < ActiveRecord::Migration[5.0]
+  DOWNTIME = false
+
+  def change
+    add_column :project_registry, :repository_verification_checksum_mismatched, :binary
+    add_column :project_registry, :wiki_verification_checksum_mismatched, :binary
+  end
+end

ee/db/geo/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20181213184140) do
+ActiveRecord::Schema.define(version: 20190314201959) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -81,6 +81,8 @@ ActiveRecord::Schema.define(version: 20181213184140) do
     t.integer "wiki_verification_retry_count"
     t.datetime_with_timezone "last_repository_verification_ran_at"
     t.datetime_with_timezone "last_wiki_verification_ran_at"
+    t.binary "repository_verification_checksum_mismatched"
+    t.binary "wiki_verification_checksum_mismatched"
     t.index ["last_repository_successful_sync_at"], name: "idx_project_registry_synced_repositories_partial", where: "((resync_repository = false) AND (repository_retry_count IS NULL) AND (repository_verification_checksum_sha IS NOT NULL))", using: :btree
     t.index ["last_repository_successful_sync_at"], name: "index_project_registry_on_last_repository_successful_sync_at", using: :btree
     t.index ["last_repository_synced_at"], name: "index_project_registry_on_last_repository_synced_at", using: :btree

ee/spec/services/geo/repository_verification_secondary_service_spec.rb

@@ -79,7 +79,7 @@ describe Geo::RepositoryVerificationSecondaryService, :geo do
 
     context 'when the checksum mismatch' do
       before do
-        allow(repository).to receive(:checksum).and_return('other_checksum')
+        allow(repository).to receive(:checksum).and_return('99fc1ec4ce60')
       end
 
       it 'keeps track of failures' do
@@ -87,6 +87,7 @@ describe Geo::RepositoryVerificationSecondaryService, :geo do
 
         expect(registry).to have_attributes(
           "#{type}_verification_checksum_sha" => nil,
+          "#{type}_verification_checksum_mismatched" => '99fc1ec4ce60',
           "#{type}_checksum_mismatch" => true,
           "last_#{type}_verification_ran_at" => be_within(1.minute).of(Time.now),
           "last_#{type}_verification_failure" => "#{type.to_s.capitalize} checksum mismatch",
@@ -120,6 +121,7 @@ describe Geo::RepositoryVerificationSecondaryService, :geo do
 
         expect(registry).to have_attributes(
           "#{type}_verification_checksum_sha" => nil,
+          "#{type}_verification_checksum_mismatched" => nil,
           "#{type}_checksum_mismatch" => false,
           "last_#{type}_verification_ran_at" => be_within(1.minute).of(Time.now),
           "last_#{type}_verification_failure" => "Error calculating #{type} checksum",