82 lines
1.8 KiB
Ruby
82 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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module Migrations
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class SettingsParser
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class InvalidYaml < StandardError
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end
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class ValidationError < StandardError
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end
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REQUIRED_KEYS = %i[source_db_path output_db_path root_paths]
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def initialize(options)
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@options = options
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validate!
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end
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def [](key)
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@options[key]
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end
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def []=(key, value)
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@options[key] = value
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end
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def fetch(key, default)
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@options.fetch(key, default)
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end
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def self.parse!(path)
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new(YAML.load_file(path, symbolize_names: true))
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rescue Psych::SyntaxError => e
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raise InvalidYaml.new(e.message)
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end
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private
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def validate!
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validate_required_keys
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validate_paths
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validate_options
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end
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def validate_required_keys
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missing = REQUIRED_KEYS - @options.keys
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raise ValidationError, "Missing required keys: #{missing.join(", ")}" if missing.any?
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end
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def validate_paths
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%i[source_db_path output_db_path].each do |key|
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path = @options[key]
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next unless path
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dir = File.dirname(path)
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raise ValidationError, "Directory not writable: #{dir}" unless File.writable?(dir)
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end
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if !@options[:root_paths].is_a?(Array)
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raise ValidationError, "Root paths must be an array of paths"
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end
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@options[:root_paths].each do |path|
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raise ValidationError, "Directory not readable: #{path}" unless File.readable?(path)
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end
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end
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def validate_options
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validate_thread_count_factor if @options[:thread_count_factor]
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end
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def validate_thread_count_factor
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count = @options[:thread_count_factor]
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unless count.is_a?(Numeric) && count.positive?
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raise ValidationError, "Thread count factor must be numeric and positive"
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end
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end
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end
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end
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