59 lines
1.5 KiB
Ruby
59 lines
1.5 KiB
Ruby
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# frozen_string_literal: true
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# Procesa los errores de JavaScript
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class BacktraceJob < ApplicationJob
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queue_as :low_priority
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attr_reader :errors
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def perform(site_id:, errors:)
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@errors = errors
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errors.each do |error|
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error['backtrace'].each do |backtrace|
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offset = SourceMap::Offset.new(backtrace['line'], backtrace['column'])
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mapping = sourcemap.bsearch(offset)
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next unless mapping
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backtrace['file'] = mapping.source
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backtrace['line'] = mapping.original.line
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backtrace['column'] = mapping.original.column
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end
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end
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begin
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raise NoMethodError
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rescue NoMethodError => e
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ExceptionNotifier.notify_exception(e, data: { errors: errors })
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end
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end
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private
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# Obtiene todos los archivos del backtrace
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def files
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@files ||= errors.map { |x| x['backtrace'] }.flatten.map { |x| x['file'].split('@').last }.uniq
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end
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# Asume que todos los sourcemaps comparten la misma URL, lo
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# correcto sería buscarlo en sourceMappingURL al final de cada
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# archivo.
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#
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# Descarga los archivos y obtiene el backtrace original.
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def sourcemap
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@sourcemap ||=
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begin
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files.map { |x| "#{x}.map" }.map do |x|
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data = FastJsonparser.parse(Rails.cache.fetch(x, expires_in: 12.hours) do
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Down.open(x).read
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end, symbolize_keys: false)
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SourceMap::Map.from_hash data
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rescue Down::Error, FastJsonparser::Error
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SourceMap::Map.new
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end.reduce(&:+)
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end
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end
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end
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