69 lines
2 KiB
Ruby
69 lines
2 KiB
Ruby
# frozen_string_literal: true
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module BulkImports
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module Common
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module Extractors
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class NdjsonExtractor
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include Gitlab::ImportExport::CommandLineUtil
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include Gitlab::Utils::StrongMemoize
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EXPORT_DOWNLOAD_URL_PATH = "/%{resource}/%{full_path}/export_relations/download?relation=%{relation}"
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def initialize(relation:)
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@relation = relation
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@tmp_dir = Dir.mktmpdir
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end
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def extract(context)
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download_service(tmp_dir, context).execute
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decompression_service(tmp_dir).execute
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relations = ndjson_reader(tmp_dir).consume_relation('', relation)
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BulkImports::Pipeline::ExtractedData.new(data: relations)
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end
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def remove_tmp_dir
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FileUtils.remove_entry(tmp_dir)
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end
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private
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attr_reader :relation, :tmp_dir
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def filename
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@filename ||= "#{relation}.ndjson.gz"
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end
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def download_service(tmp_dir, context)
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@download_service ||= BulkImports::FileDownloadService.new(
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configuration: context.configuration,
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relative_url: relative_resource_url(context),
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dir: tmp_dir,
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filename: filename
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)
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end
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def decompression_service(tmp_dir)
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@decompression_service ||= BulkImports::FileDecompressionService.new(
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dir: tmp_dir,
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filename: filename
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)
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end
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def ndjson_reader(tmp_dir)
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@ndjson_reader ||= Gitlab::ImportExport::Json::NdjsonReader.new(tmp_dir)
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end
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def relative_resource_url(context)
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strong_memoize(:relative_resource_url) do
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resource = context.portable.class.name.downcase.pluralize
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encoded_full_path = context.entity.encoded_source_full_path
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EXPORT_DOWNLOAD_URL_PATH % { resource: resource, full_path: encoded_full_path, relation: relation }
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end
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end
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end
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end
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end
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end
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