101 lines
3.4 KiB
Ruby
101 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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module Packages
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module Nuget
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class SearchService < BaseService
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include Gitlab::Utils::StrongMemoize
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include ActiveRecord::ConnectionAdapters::Quoting
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MAX_PER_PAGE = 30
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MAX_VERSIONS_PER_PACKAGE = 10
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PRE_RELEASE_VERSION_MATCHING_TERM = '%-%'
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DEFAULT_OPTIONS = {
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include_prerelease_versions: true,
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per_page: Kaminari.config.default_per_page,
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padding: 0
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}.freeze
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def initialize(project, search_term, options = {})
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@project = project
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@search_term = search_term
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@options = DEFAULT_OPTIONS.merge(options)
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raise ArgumentError, 'negative per_page' if per_page < 0
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raise ArgumentError, 'negative padding' if padding < 0
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end
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def execute
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OpenStruct.new(
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total_count: package_names.total_count,
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results: search_packages
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)
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end
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private
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def search_packages
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# custom query to get package names and versions as expected from the nuget search api
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# See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/24182#technical-notes
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# and https://docs.microsoft.com/en-us/nuget/api/search-query-service-resource
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subquery_name = :partition_subquery
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arel_table = Arel::Table.new(:partition_subquery)
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column_names = Packages::Package.column_names.map do |cn|
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"#{subquery_name}.#{quote_column_name(cn)}"
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end
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# rubocop: disable CodeReuse/ActiveRecord
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pkgs = Packages::Package.select(column_names.join(','))
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.from(package_names_partition, subquery_name)
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.where(arel_table[:row_number].lteq(MAX_VERSIONS_PER_PACKAGE))
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return pkgs if include_prerelease_versions?
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# we can't use pkgs.without_version_like since we have a custom from
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pkgs.where.not(arel_table[:version].matches(PRE_RELEASE_VERSION_MATCHING_TERM))
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end
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def package_names_partition
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table_name = quote_table_name(Packages::Package.table_name)
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name_column = "#{table_name}.#{quote_column_name('name')}"
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created_at_column = "#{table_name}.#{quote_column_name('created_at')}"
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select_sql = "ROW_NUMBER() OVER (PARTITION BY #{name_column} ORDER BY #{created_at_column} DESC) AS row_number, #{table_name}.*"
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@project.packages
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.select(select_sql)
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.nuget
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.has_version
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.without_nuget_temporary_name
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.with_name(package_names)
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end
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def package_names
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strong_memoize(:package_names) do
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pkgs = @project.packages
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.nuget
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.has_version
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.without_nuget_temporary_name
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.order_name
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.select_distinct_name
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pkgs = pkgs.without_version_like(PRE_RELEASE_VERSION_MATCHING_TERM) unless include_prerelease_versions?
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pkgs = pkgs.search_by_name(@search_term) if @search_term.present?
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pkgs.page(0) # we're using a padding
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.per(per_page)
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.padding(padding)
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end
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end
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def include_prerelease_versions?
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@options[:include_prerelease_versions]
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end
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def padding
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@options[:padding]
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end
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def per_page
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[@options[:per_page], MAX_PER_PAGE].min
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end
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end
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end
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end
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