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Versions: 18
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Contents
module Eco
module Language
# Basic logger to format messaging to console
class BasicLogger
class << self
def forward(*meths)
meths.each do |meth|
define_method(meth) do |*args, **kargs, &block|
forward(meth, *args, **kargs, &block)
end
end
end
end
TIMESTAMP_PATTERN = '%Y-%m-%dT%H:%M:%S'.freeze
LOG_LEVELS = %i[unknown fatal error warn info debug].freeze
METHODS = %i[<< close add].freeze
attr_writer :timestamp
attr_reader :level
forward *LOG_LEVELS, *METHODS
def initialize(level: ::Logger::INFO, timestamp: false)
@level = level
self.timestamp = timestamp
loggers[:console] = ::Logger.new(STDOUT).tap do |logger|
logger.formatter = format_proc(console: true)
logger.level = level
end
end
def timestamp?
@timestamp
end
def level=(value)
loggers[:console].level = value
end
private
def forward(meth, *args, &block)
loggers.each do |_key, logger|
logger.send(meth, *args, &block)
end
end
def loggers
@loggers ||= {}
end
def console_timestamp(datetime)
return nil unless timestamp?
timestamp(datetime)
end
def timestamp(datetime)
return nil unless datetime
str_date = datetime.strftime(self.class::TIMESTAMP_PATTERN)
"#{str_date} > "
end
def format_proc(console: true, &block)
proc do |severity, datetime, progname, msg|
str_stamp = console ? console_timestamp(datetime) : timestamp(datetime)
"#{severity.to_s[0]}: #{str_stamp}#{msg}\n".tap do |formatted_msg|
block.call(severity, datetime, msg, formatted_msg) if block
end
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems