112 lines
3.2 KiB
Ruby
112 lines
3.2 KiB
Ruby
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# frozen_string_literal: true
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module Packages
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module Npm
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class GenerateMetadataService
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include API::Helpers::RelatedResourcesHelpers
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# Allowed fields are those defined in the abbreviated form
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# defined here: https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md#abbreviated-version-object
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# except: name, version, dist, dependencies and xDependencies. Those are generated by this service.
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PACKAGE_JSON_ALLOWED_FIELDS = %w[deprecated bin directories dist engines _hasShrinkwrap].freeze
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def initialize(name, packages)
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@name = name
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@packages = packages
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end
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def execute(only_dist_tags: false)
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ServiceResponse.success(payload: metadata(only_dist_tags))
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end
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private
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attr_reader :name, :packages
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def metadata(only_dist_tags)
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result = { dist_tags: dist_tags }
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unless only_dist_tags
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result[:name] = name
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result[:versions] = versions
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end
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result
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end
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def versions
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package_versions = {}
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packages.each_batch do |relation|
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batched_packages = relation.including_dependency_links
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.preload_files
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.preload_npm_metadatum
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batched_packages.each do |package|
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package_file = package.installable_package_files.last
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next unless package_file
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package_versions[package.version] = build_package_version(package, package_file)
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end
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end
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package_versions
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end
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def dist_tags
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build_package_tags.tap { |t| t['latest'] ||= sorted_versions.last }
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end
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def build_package_tags
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package_tags.to_h { |tag| [tag.name, tag.package.version] }
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end
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def build_package_version(package, package_file)
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abbreviated_package_json(package).merge(
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name: package.name,
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version: package.version,
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dist: {
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shasum: package_file.file_sha1,
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tarball: tarball_url(package, package_file)
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}
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).tap do |package_version|
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package_version.merge!(build_package_dependencies(package))
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end
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end
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def tarball_url(package, package_file)
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expose_url api_v4_projects_packages_npm_package_name___file_name_path(
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{ id: package.project_id, package_name: package.name, file_name: package_file.file_name }, true
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)
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end
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def build_package_dependencies(package)
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dependencies = Hash.new { |h, key| h[key] = {} }
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package.dependency_links.each do |dependency_link|
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dependency = dependency_link.dependency
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dependencies[dependency_link.dependency_type][dependency.name] = dependency.version_pattern
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end
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dependencies
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end
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def sorted_versions
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versions = packages.pluck_versions.compact
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VersionSorter.sort(versions)
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end
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def package_tags
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Packages::Tag.for_package_ids(packages.last_of_each_version_ids)
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.preload_package
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end
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def abbreviated_package_json(package)
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json = package.npm_metadatum&.package_json || {}
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json.slice(*PACKAGE_JSON_ALLOWED_FIELDS)
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end
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end
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end
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end
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