347 lines
13 KiB
Ruby
347 lines
13 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module ImportExport
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class RelationFactory
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prepend_if_ee('::EE::Gitlab::ImportExport::RelationFactory') # rubocop: disable Cop/InjectEnterpriseEditionModule
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OVERRIDES = { snippets: :project_snippets,
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ci_pipelines: 'Ci::Pipeline',
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pipelines: 'Ci::Pipeline',
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stages: 'Ci::Stage',
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statuses: 'commit_status',
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triggers: 'Ci::Trigger',
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pipeline_schedules: 'Ci::PipelineSchedule',
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builds: 'Ci::Build',
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runners: 'Ci::Runner',
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hooks: 'ProjectHook',
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merge_access_levels: 'ProtectedBranch::MergeAccessLevel',
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push_access_levels: 'ProtectedBranch::PushAccessLevel',
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create_access_levels: 'ProtectedTag::CreateAccessLevel',
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labels: :project_labels,
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priorities: :label_priorities,
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auto_devops: :project_auto_devops,
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label: :project_label,
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custom_attributes: 'ProjectCustomAttribute',
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project_badges: 'Badge',
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metrics: 'MergeRequest::Metrics',
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ci_cd_settings: 'ProjectCiCdSetting',
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error_tracking_setting: 'ErrorTracking::ProjectErrorTrackingSetting',
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links: 'Releases::Link',
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metrics_setting: 'ProjectMetricsSetting' }.freeze
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USER_REFERENCES = %w[author_id assignee_id updated_by_id merged_by_id latest_closed_by_id user_id created_by_id last_edited_by_id merge_user_id resolved_by_id closed_by_id owner_id].freeze
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PROJECT_REFERENCES = %w[project_id source_project_id target_project_id].freeze
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BUILD_MODELS = %i[Ci::Build commit_status].freeze
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IMPORTED_OBJECT_MAX_RETRIES = 5.freeze
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EXISTING_OBJECT_CHECK = %i[milestone milestones label labels project_label project_labels group_label group_labels project_feature merge_request].freeze
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TOKEN_RESET_MODELS = %i[Project Namespace Ci::Trigger Ci::Build Ci::Runner ProjectHook].freeze
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def self.create(*args)
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new(*args).create
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end
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def self.relation_class(relation_name)
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# There are scenarios where the model is pluralized (e.g.
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# MergeRequest::Metrics), and we don't want to force it to singular
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# with #classify.
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relation_name.to_s.classify.constantize
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rescue NameError
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relation_name.to_s.constantize
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end
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def initialize(relation_sym:, relation_hash:, members_mapper:, merge_requests_mapping:, user:, project:, excluded_keys: [])
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@relation_name = self.class.overrides[relation_sym]&.to_sym || relation_sym
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@relation_hash = relation_hash.except('noteable_id')
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@members_mapper = members_mapper
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@merge_requests_mapping = merge_requests_mapping
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@user = user
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@project = project
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@imported_object_retries = 0
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@relation_hash['project_id'] = @project.id
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# Remove excluded keys from relation_hash
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# We don't do this in the parsed_relation_hash because of the 'transformed attributes'
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# For example, MergeRequestDiffFiles exports its diff attribute as utf8_diff. Then,
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# in the create method that attribute is renamed to diff. And because diff is an excluded key,
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# if we clean the excluded keys in the parsed_relation_hash, it will be removed
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# from the object attributes and the export will fail.
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@relation_hash.except!(*excluded_keys)
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end
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# Creates an object from an actual model with name "relation_sym" with params from
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# the relation_hash, updating references with new object IDs, mapping users using
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# the "members_mapper" object, also updating notes if required.
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def create
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return if unknown_service?
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# Do not import legacy triggers
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return if !Feature.enabled?(:use_legacy_pipeline_triggers, @project) && legacy_trigger?
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setup_models
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generate_imported_object
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end
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def self.overrides
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OVERRIDES
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end
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def self.existing_object_check
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EXISTING_OBJECT_CHECK
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end
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private
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def setup_models
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case @relation_name
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when :merge_request_diff_files then setup_diff
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when :notes then setup_note
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end
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update_user_references
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update_project_references
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update_group_references
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remove_duplicate_assignees
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if @relation_name == :'Ci::Pipeline'
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update_merge_request_references
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setup_pipeline
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end
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reset_tokens!
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remove_encrypted_attributes!
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end
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def update_user_references
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USER_REFERENCES.each do |reference|
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if @relation_hash[reference]
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@relation_hash[reference] = @members_mapper.map[@relation_hash[reference]]
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end
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end
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end
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def remove_duplicate_assignees
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return unless @relation_hash['issue_assignees']
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# When an assignee did not exist in the members mapper, the importer is
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# assigned. We only need to assign each user once.
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@relation_hash['issue_assignees'].uniq!(&:user_id)
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end
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def setup_note
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set_note_author
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# attachment is deprecated and note uploads are handled by Markdown uploader
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@relation_hash['attachment'] = nil
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end
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# Sets the author for a note. If the user importing the project
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# has admin access, an actual mapping with new project members
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# will be used. Otherwise, a note stating the original author name
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# is left.
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def set_note_author
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old_author_id = @relation_hash['author_id']
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author = @relation_hash.delete('author')
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update_note_for_missing_author(author['name']) unless has_author?(old_author_id)
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end
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def has_author?(old_author_id)
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admin_user? && @members_mapper.include?(old_author_id)
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end
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def missing_author_note(updated_at, author_name)
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timestamp = updated_at.split('.').first
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"\n\n *By #{author_name} on #{timestamp} (imported from GitLab project)*"
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end
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def generate_imported_object
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if BUILD_MODELS.include?(@relation_name)
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@relation_hash.delete('trace') # old export files have trace
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@relation_hash.delete('token')
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@relation_hash.delete('commands')
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@relation_hash.delete('artifacts_file_store')
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@relation_hash.delete('artifacts_metadata_store')
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@relation_hash.delete('artifacts_size')
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imported_object
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elsif @relation_name == :merge_requests
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MergeRequestParser.new(@project, @relation_hash.delete('diff_head_sha'), imported_object, @relation_hash).parse!
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else
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imported_object
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end
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end
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def update_project_references
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# If source and target are the same, populate them with the new project ID.
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if @relation_hash['source_project_id']
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@relation_hash['source_project_id'] = same_source_and_target? ? @relation_hash['project_id'] : MergeRequestParser::FORKED_PROJECT_ID
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end
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@relation_hash['target_project_id'] = @relation_hash['project_id'] if @relation_hash['target_project_id']
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end
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def same_source_and_target?
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@relation_hash['target_project_id'] && @relation_hash['target_project_id'] == @relation_hash['source_project_id']
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end
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def update_group_references
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return unless self.class.existing_object_check.include?(@relation_name)
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return unless @relation_hash['group_id']
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@relation_hash['group_id'] = @project.namespace_id
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end
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# This code is a workaround for broken project exports that don't
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# export merge requests with CI pipelines (i.e. exports that were
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# generated from
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# https://gitlab.com/gitlab-org/gitlab/merge_requests/17844).
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# This method can be removed in GitLab 12.6.
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def update_merge_request_references
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# If a merge request was properly created, we don't need to fix
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# up this export.
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return if @relation_hash['merge_request']
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merge_request_id = @relation_hash['merge_request_id']
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return unless merge_request_id
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new_merge_request_id = @merge_requests_mapping[merge_request_id]
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return unless new_merge_request_id
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@relation_hash['merge_request_id'] = new_merge_request_id
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parsed_relation_hash['merge_request_id'] = new_merge_request_id
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end
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def reset_tokens!
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return unless Gitlab::ImportExport.reset_tokens? && TOKEN_RESET_MODELS.include?(@relation_name)
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# If we import/export a project to the same instance, tokens will have to be reset.
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# We also have to reset them to avoid issues when the gitlab secrets file cannot be copied across.
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relation_class.attribute_names.select { |name| name.include?('token') }.each do |token|
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@relation_hash[token] = nil
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end
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end
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def remove_encrypted_attributes!
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return unless relation_class.respond_to?(:encrypted_attributes) && relation_class.encrypted_attributes.any?
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relation_class.encrypted_attributes.each_key do |key|
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@relation_hash[key.to_s] = nil
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end
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end
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def relation_class
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@relation_class ||= self.class.relation_class(@relation_name)
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end
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def imported_object
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if existing_or_new_object.respond_to?(:importing)
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existing_or_new_object.importing = true
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end
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existing_or_new_object
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rescue ActiveRecord::RecordNotUnique
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# as the operation is not atomic, retry in the unlikely scenario an INSERT is
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# performed on the same object between the SELECT and the INSERT
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@imported_object_retries += 1
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retry if @imported_object_retries < IMPORTED_OBJECT_MAX_RETRIES
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end
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def update_note_for_missing_author(author_name)
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@relation_hash['note'] = '*Blank note*' if @relation_hash['note'].blank?
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@relation_hash['note'] = "#{@relation_hash['note']}#{missing_author_note(@relation_hash['updated_at'], author_name)}"
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end
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def admin_user?
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@user.admin?
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end
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def parsed_relation_hash
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@parsed_relation_hash ||= Gitlab::ImportExport::AttributeCleaner.clean(relation_hash: @relation_hash,
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relation_class: relation_class)
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end
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def setup_diff
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@relation_hash['diff'] = @relation_hash.delete('utf8_diff')
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end
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def setup_pipeline
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@relation_hash.fetch('stages').each do |stage|
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stage.statuses.each do |status|
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status.pipeline = imported_object
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end
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end
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end
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def existing_or_new_object
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# Only find existing records to avoid mapping tables such as milestones
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# Otherwise always create the record, skipping the extra SELECT clause.
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@existing_or_new_object ||= begin
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if self.class.existing_object_check.include?(@relation_name)
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attribute_hash = attribute_hash_for(['events'])
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existing_object.assign_attributes(attribute_hash) if attribute_hash.any?
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existing_object
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else
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# Because of single-type inheritance, we need to be careful to use the `type` field
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# See https://gitlab.com/gitlab-org/gitlab/issues/34860#note_235321497
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inheritance_column = relation_class.try(:inheritance_column)
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inheritance_attributes = parsed_relation_hash.slice(inheritance_column)
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object = relation_class.new(inheritance_attributes)
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object.assign_attributes(parsed_relation_hash)
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object
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end
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end
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end
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def attribute_hash_for(attributes)
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attributes.inject({}) do |hash, value|
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hash[value] = parsed_relation_hash.delete(value) if parsed_relation_hash[value]
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hash
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end
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end
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def existing_object
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@existing_object ||= find_or_create_object!
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end
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def unknown_service?
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@relation_name == :services && parsed_relation_hash['type'] &&
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!Object.const_defined?(parsed_relation_hash['type'])
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end
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def legacy_trigger?
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@relation_name == :'Ci::Trigger' && @relation_hash['owner_id'].nil?
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end
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def find_or_create_object!
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return relation_class.find_or_create_by(project_id: @project.id) if @relation_name == :project_feature
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return find_or_create_merge_request! if @relation_name == :merge_request
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# Can't use IDs as validation exists calling `group` or `project` attributes
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finder_hash = parsed_relation_hash.tap do |hash|
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hash['group'] = @project.group if relation_class.attribute_method?('group_id')
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hash['project'] = @project if relation_class.reflect_on_association(:project)
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hash.delete('project_id')
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end
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GroupProjectObjectBuilder.build(relation_class, finder_hash)
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end
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def find_or_create_merge_request!
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@project.merge_requests.find_by(iid: parsed_relation_hash['iid']) ||
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relation_class.new(parsed_relation_hash)
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end
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end
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end
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end
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