85 lines
2.7 KiB
Ruby
85 lines
2.7 KiB
Ruby
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# frozen_string_literal: true
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module Packages
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module Rpm
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class ParsePackageService
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include ::Gitlab::Utils::StrongMemoize
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BUILD_ATTRIBUTES_METHOD_NAMES = %i[changelogs requirements provides].freeze
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STATIC_ATTRIBUTES = %i[name version release summary description arch
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license sourcerpm group buildhost packager vendor].freeze
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CHANGELOGS_RPM_KEYS = %i[changelogtext changelogtime].freeze
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REQUIREMENTS_RPM_KEYS = %i[requirename requireversion requireflags].freeze
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PROVIDES_RPM_KEYS = %i[providename provideflags provideversion].freeze
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def initialize(package_file)
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@rpm = RPM::File.new(package_file)
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end
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def execute
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raise ArgumentError, 'Unable to parse package' unless valid_package?
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{
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files: rpm.files || [],
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epoch: package_tags[:epoch] || '0',
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changelogs: build_changelogs,
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requirements: build_requirements,
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provides: build_provides
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}.merge(extract_static_attributes)
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end
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private
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attr_reader :rpm
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def valid_package?
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rpm.files && package_tags && true
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rescue RuntimeError
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# if arr-pm throws an error due to an incorrect file format,
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# we just want this validation to fail rather than throw an exception
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false
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end
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def package_tags
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strong_memoize(:package_tags) do
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rpm.tags
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end
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end
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def extract_static_attributes
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STATIC_ATTRIBUTES.each_with_object({}) do |attribute, hash|
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hash[attribute] = package_tags[attribute]
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end
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end
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# Define methods for building RPM attribute data from parsed package
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# Transform
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# changelogtime: [123, 234],
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# changelogname: ["First", "Second"]
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# changelogtext: ["Work1", "Work2"]
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# Into
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# changelog: [
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# {changelogname: "First", changelogtext: "Work1", changelogtime: 123},
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# {changelogname: "Second", changelogtext: "Work2", changelogtime: 234}
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# ]
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BUILD_ATTRIBUTES_METHOD_NAMES.each do |resource|
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define_method("build_#{resource}") do
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resource_keys = self.class.const_get("#{resource.upcase}_RPM_KEYS", false).dup
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return [] if resource_keys.any? { package_tags[_1].blank? }
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first_attributes = package_tags[resource_keys.first]
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zipped_data = first_attributes.zip(*resource_keys[1..].map { package_tags[_1] })
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build_hashes(resource_keys, zipped_data)
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end
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end
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def build_hashes(resource_keys, zipped_data)
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zipped_data.map do |data|
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resource_keys.zip(data).to_h
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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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