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94 lines
2.4 KiB
94 lines
2.4 KiB
require_relative 'ansi_wrapper'
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require_relative 'ansi_colors'
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require 'io/console'
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require 'amazing_print'
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require 'json'
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# wraps meanwhile takes care of ansi colors
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class AnsiFormatter < SemanticLogger::Formatters::Color
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include AnsiColors
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ANSI_DEBUG = CLEAR + TEXT_GRAY_400
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ANSI_INFO = CLEAR + TEXT_GRAY_100
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ANSI_WARN = CLEAR + BG_YELLOW + TEXT_BLACK
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ANSI_ERROR = CLEAR + BG_RED + TEXT_WHITE
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ANSI_FATAL = CLEAR + BG_MAGENTA + BOLD + TEXT_WHITE
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NAME_MAX_SIZE = 20
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FOREMAN_PREFIX_LENGTH = 18
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DEFAULT_UNDETECTED_WRAP = 80
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def initialize
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super(color_map: ColorMap.new(
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debug: ANSI_DEBUG,
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info: ANSI_INFO,
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warn: ANSI_WARN,
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error: ANSI_ERROR,
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fatal: ANSI_FATAL
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))
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end
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def call(log, logger)
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self.log = log
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self.logger = logger
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self.color = color_map[log.level]
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wrap_length = compute_useful_length
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wrap_level(wrap_length, message, payload, exception)
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end
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def origin
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origin = log.name.truncate(NAME_MAX_SIZE).center(NAME_MAX_SIZE)
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colorize(origin, AnsiColors::TEXT_CYAN)
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end
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def message
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return unless log.message
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colorize(log.message)
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end
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def exception
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return unless log.exception
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clazz = "#{log.exception.class}\n"
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message = log.exception.message.chomp('')
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backtrace = clean_backtrace(log.exception.backtrace)
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"#{colorize(clazz, ANSI_FATAL)}#{colorize(message, ANSI_ERROR)}#{backtrace}"
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end
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private
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def colorize(text, tint = color) = "#{tint}#{text}#{AnsiColors::CLEAR}"
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def build_prefix = "#{origin} #{colorize(draw_rails(level_char))} "
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def build_continuation = "#{origin} #{colorize(draw_rails('┆'))} "
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def draw_rails(char) = "╣#{char}╠"
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def compute_useful_length
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IO.console.winsize[1] - FOREMAN_PREFIX_LENGTH
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rescue StandardError
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DEFAULT_UNDETECTED_WRAP
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end
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def clean_backtrace(backtrace)
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root_path = Rails.root.to_s
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backtrace = backtrace.select { |line| line.starts_with?(root_path) }
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backtrace = backtrace.map { |line| line.delete_prefix("#{root_path}/") }
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backtrace.compact.join("\n")
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end
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def level_char
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case log.level
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when :info, :debug then ' '
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else log.level.to_s.chr.upcase
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end
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end
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def wrap_level(length, *items)
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prefix = build_prefix
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continuation = build_continuation
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items.map do |item|
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AnsiWrapper.wrap(item, length, prefix, continuation)
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end.compact.join("\n")
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end
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end
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