Enable migration cops for Geo migrations tool

The migration rubocop rules should only be applied to Geo tracking
database migrations.

Closes https://gitlab.com/gitlab-org/gitlab/issues/13814

ee/db/geo/migrate/20170223033541_create_file_registry.rb

 class CreateFileRegistry < ActiveRecord::Migration[4.2]
   def change
     create_table :file_registry do |t|
-      t.string  :file_type, null: false
+      t.string  :file_type, null: false # rubocop:disable Migration/AddLimitToStringColumns
       t.integer :file_id, null: false
       t.integer :bytes
-      t.string  :sha256
+      t.string  :sha256 # rubocop:disable Migration/AddLimitToStringColumns
 
       t.datetime :created_at, null: false
     end

ee/db/geo/migrate/20170302005747_add_index_to_project_id_on_project_registry.rb

@@ -10,6 +10,6 @@ class AddIndexToProjectIdOnProjectRegistry < ActiveRecord::Migration[4.2]
   end
 
   def down
-    remove_index :project_registry, :project_id
+    remove_concurrent_index :project_registry, :project_id
   end
 end

ee/db/geo/migrate/20170614201943_add_last_wiki_synced_at_to_project_registry.rb

@@ -2,7 +2,7 @@ class AddLastWikiSyncedAtToProjectRegistry < ActiveRecord::Migration[4.2]
   DOWNTIME = false
 
   def change
-    add_column :project_registry, :last_wiki_synced_at, :datetime
-    add_column :project_registry, :last_wiki_successful_sync_at, :datetime
+    add_column :project_registry, :last_wiki_synced_at, :datetime # rubocop:disable Migration/Datetime
+    add_column :project_registry, :last_wiki_successful_sync_at, :datetime # rubocop:disable Migration/Datetime
   end
 end

ee/db/geo/migrate/20171101105200_add_retry_count_fields_to_registries.rb

@@ -7,14 +7,14 @@ class AddRetryCountFieldsToRegistries < ActiveRecord::Migration[4.2]
 
   def up
     add_column :file_registry, :retry_count, :integer
-    add_column :file_registry, :retry_at, :datetime
+    add_column :file_registry, :retry_at, :datetime # rubocop:disable Migration/Datetime
 
     add_column :project_registry, :repository_retry_count, :integer
-    add_column :project_registry, :repository_retry_at, :datetime
+    add_column :project_registry, :repository_retry_at, :datetime # rubocop:disable Migration/Datetime
     add_column :project_registry, :force_to_redownload_repository, :boolean
 
     add_column :project_registry, :wiki_retry_count, :integer
-    add_column :project_registry, :wiki_retry_at, :datetime
+    add_column :project_registry, :wiki_retry_at, :datetime # rubocop:disable Migration/Datetime
     add_column :project_registry, :force_to_redownload_wiki, :boolean
 
     # Indecies
@@ -25,14 +25,14 @@ class AddRetryCountFieldsToRegistries < ActiveRecord::Migration[4.2]
 
   def down
     remove_column :file_registry, :retry_count, :integer
-    remove_column :file_registry, :retry_at, :datetime
+    remove_column :file_registry, :retry_at, :datetime # rubocop:disable Migration/Datetime
 
     remove_column :project_registry, :repository_retry_count, :integer
-    remove_column :project_registry, :repository_retry_at, :datetime
+    remove_column :project_registry, :repository_retry_at, :datetime # rubocop:disable Migration/Datetime
     remove_column :project_registry, :force_to_redownload_repository, :boolean
 
     remove_column :project_registry, :wiki_retry_count, :integer
-    remove_column :project_registry, :wiki_retry_at, :datetime
+    remove_column :project_registry, :wiki_retry_at, :datetime # rubocop:disable Migration/Datetime
     remove_column :project_registry, :force_to_redownload_wiki, :boolean
   end
 end

ee/db/geo/migrate/20171115143841_add_last_sync_failure_to_project_registry.rb

@@ -2,7 +2,7 @@ class AddLastSyncFailureToProjectRegistry < ActiveRecord::Migration[4.2]
   DOWNTIME = false
 
   def change
-    add_column :project_registry, :last_repository_sync_failure, :string
-    add_column :project_registry, :last_wiki_sync_failure, :string
+    add_column :project_registry, :last_repository_sync_failure, :string # rubocop:disable Migration/AddLimitToStringColumns
+    add_column :project_registry, :last_wiki_sync_failure, :string # rubocop:disable Migration/AddLimitToStringColumns
   end
 end

ee/db/geo/migrate/20180201154345_add_repository_verification_to_project_registry.rb

@@ -5,14 +5,14 @@ class AddRepositoryVerificationToProjectRegistry < ActiveRecord::Migration[4.2]
   DOWNTIME = false
 
   def change
-    add_column :project_registry, :repository_verification_checksum, :string
+    add_column :project_registry, :repository_verification_checksum, :string # rubocop:disable Migration/AddLimitToStringColumns
     add_column :project_registry, :last_repository_verification_at, :datetime_with_timezone
-    add_column :project_registry, :last_repository_verification_failed, :boolean, null: false, default: false
-    add_column :project_registry, :last_repository_verification_failure, :string
+    add_column :project_registry, :last_repository_verification_failed, :boolean, null: false, default: false # rubocop:disable Migration/AddColumn
+    add_column :project_registry, :last_repository_verification_failure, :string # rubocop:disable Migration/AddLimitToStringColumns
 
-    add_column :project_registry, :wiki_verification_checksum, :string
+    add_column :project_registry, :wiki_verification_checksum, :string # rubocop:disable Migration/AddLimitToStringColumns
     add_column :project_registry, :last_wiki_verification_at, :datetime_with_timezone
-    add_column :project_registry, :last_wiki_verification_failed, :boolean, null: false, default: false
-    add_column :project_registry, :last_wiki_verification_failure, :string
+    add_column :project_registry, :last_wiki_verification_failed, :boolean, null: false, default: false # rubocop:disable Migration/AddColumn
+    add_column :project_registry, :last_wiki_verification_failure, :string # rubocop:disable Migration/AddLimitToStringColumns
   end
 end

ee/db/geo/migrate/20180322062741_migrate_ci_job_artifacts_to_separate_registry.rb

@@ -7,7 +7,7 @@ class MigrateCiJobArtifactsToSeparateRegistry < ActiveRecord::Migration[4.2]
       t.integer "artifact_id", unique: true
       t.integer "retry_count"
       t.boolean "success"
-      t.string "sha256"
+      t.string "sha256" # rubocop:disable Migration/AddLimitToStringColumns
     end
 
     Geo::TrackingBase.transaction do

ee/db/geo/migrate/20180419174834_add_checksum_mismatch_fields_to_project_registry.rb

@@ -4,7 +4,7 @@ class AddChecksumMismatchFieldsToProjectRegistry < ActiveRecord::Migration[4.2]
   DOWNTIME = false
 
   def change
-    add_column :project_registry, :repository_checksum_mismatch, :boolean, null: false, default: false
-    add_column :project_registry, :wiki_checksum_mismatch, :boolean, null: false, default: false
+    add_column :project_registry, :repository_checksum_mismatch, :boolean, null: false, default: false # rubocop:disable Migration/AddColumn
+    add_column :project_registry, :wiki_checksum_mismatch, :boolean, null: false, default: false # rubocop:disable Migration/AddColumn
   end
 end

ee/db/geo/migrate/20190612211021_add_container_repository_registry.rb

@@ -6,9 +6,9 @@ class AddContainerRepositoryRegistry < ActiveRecord::Migration[5.0]
   def change
     create_table :container_repository_registry, id: :serial, force: :cascade do |t|
       t.integer :container_repository_id, null: false
-      t.string :state
+      t.string :state # rubocop:disable Migration/AddLimitToStringColumns
       t.integer :retry_count, default: 0
-      t.string :last_sync_failure
+      t.string :last_sync_failure # rubocop:disable Migration/AddLimitToStringColumns
       t.datetime :retry_at
       t.datetime :last_synced_at
       t.datetime :created_at, null: false

ee/db/geo/migrate/20190802200655_add_created_at_to_event_log_states.rb

@@ -4,7 +4,7 @@ class AddCreatedAtToEventLogStates < ActiveRecord::Migration[5.2]
   DOWNTIME = false
 
   def up
-    add_column(:event_log_states, :created_at, :datetime, null: true)
+    add_column(:event_log_states, :created_at, :datetime, null: true) # rubocop:disable Migration/Datetime
 
     # There should only be 1 record in the event_log_states table
     execute('UPDATE event_log_states SET created_at = (

ee/db/geo/post_migrate/20180320011914_remove_last_verification_failed_columns_from_geo_project_registry.rb

@@ -7,7 +7,7 @@ class RemoveLastVerificationFailedColumnsFromGeoProjectRegistry < ActiveRecord::
   end
 
   def down
-    add_column :project_registry, :last_repository_verification_failed, :boolean, default: false, null: false
-    add_column :project_registry, :last_wiki_verification_failed, :boolean, default: false, null: false
+    add_column :project_registry, :last_repository_verification_failed, :boolean, default: false, null: false # rubocop:disable Migration/AddColumn
+    add_column :project_registry, :last_wiki_verification_failed, :boolean, default: false, null: false # rubocop:disable Migration/AddColumn
   end
 end

ee/db/geo/post_migrate/20180326171626_remove_old_repository_verification_checksum_from_geo_project_registry.rb

@@ -7,7 +7,7 @@ class RemoveOldRepositoryVerificationChecksumFromGeoProjectRegistry < ActiveReco
   end
 
   def down
-    add_column :project_registry, :repository_verification_checksum, :string
-    add_column :project_registry, :wiki_verification_checksum, :string
+    add_column :project_registry, :repository_verification_checksum, :string # rubocop:disable Migration/AddLimitToStringColumns
+    add_column :project_registry, :wiki_verification_checksum, :string # rubocop:disable Migration/AddLimitToStringColumns
   end
 end

rubocop/migration_helpers.rb

@@ -3,15 +3,17 @@ module RuboCop
   module MigrationHelpers
     # Returns true if the given node originated from the db/migrate directory.
     def in_migration?(node)
-      dirname = File.dirname(node.location.expression.source_buffer.name)
-
-      dirname.end_with?('db/migrate', 'db/post_migrate')
+      dirname(node).end_with?('db/migrate', 'db/geo/migrate') || in_post_deployment_migration?(node)
     end
 
     def in_post_deployment_migration?(node)
-      dirname = File.dirname(node.location.expression.source_buffer.name)
+      dirname(node).end_with?('db/post_migrate', 'db/geo/post_migrate')
+    end
+
+    private
 
-      dirname.end_with?('db/post_migrate')
+    def dirname(node)
+      File.dirname(node.location.expression.source_buffer.name)
     end
   end
 end