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Contents
require 'json'
module RooOnRails
# A generator for the logfmt log format.
#
# @see https://brandur.org/logfmt The original description of logfmt
# @see https://godoc.org/github.com/kr/logfmt The 'reference' parser
module Logfmt
class << self
SPACE = 0x20
QUOTE = 0x22
EQUALS = 0x3d
def dump(hash)
return nil if hash.nil? || hash.empty?
hash.map { |k, v| "#{k}=#{dump_value(v)}" }.join(' ')
end
private
def dump_value(v)
str = case v
when String then v
when Symbol then v.to_s
when Array, Hash then JSON.dump(v)
else v.respond_to?(:to_json) ? v.to_json : v.inspect
end
escape(str)
end
def escape(str)
return str if ident?(str)
escaped = str.gsub(/(["\\])/, '\\\\\1')
%("#{escaped}")
end
def ident?(str)
str.bytes.all? { |b| b > SPACE && b != EQUALS && b != QUOTE }
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems