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Rails 3 logs with severity and PIDs
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# You must require this file in application.rb, above the Application | |
# definition, for this to work. For example: | |
# | |
# # Syslog-like Rails logs | |
# if Rails.env.production? | |
# require File.expand_path('../../lib/better_logger', __FILE__) | |
# end | |
# | |
# module MyApp | |
# class Application < Rails::Application | |
require 'active_support/buffered_logger' | |
class BetterLogger < ActiveSupport::BufferedLogger | |
SEVERITIES = Severity.constants.sort_by{|c| Severity.const_get(c) } | |
def add(severity, message = nil, progname = nil, &block) | |
return if @level > severity | |
message = (message || (block && block.call) || progname).to_s | |
# Prepend pid and severity to the written message | |
log = "[%s] %-5.5s %s" % [$$, SEVERITIES[severity], message.gsub(/^\n+/, '')] | |
# If a newline is necessary then create a new message ending with a newline. | |
log << "\n" unless log[-1] == ?\n | |
buffer << log | |
auto_flush | |
message | |
end | |
class Railtie < ::Rails::Railtie | |
# overwrite Rails' initializer to set up our own instead | |
initializer :initialize_logger do |app| | |
Rails.logger = begin | |
logger = BetterLogger.new(app.config.paths.log.to_a.first) | |
level_name = app.config.log_level.to_s.upcase | |
logger.level = ActiveSupport::BufferedLogger.const_get(level_name) | |
logger.auto_flushing = false if Rails.env.production? | |
logger | |
end | |
ActiveSupport::Dependencies.logger = Rails.logger | |
# cache has no callback of its own, but is set before this callback | |
ActiveSupport.on_load(:before_initialize) do | |
Rails.cache.logger = Rails.logger | |
end | |
ActiveSupport.on_load(:active_record) do | |
ActiveRecord::Base.logger = Rails.logger | |
end | |
ActiveSupport.on_load(:action_controller) do | |
ActionController::Base.logger = Rails.logger | |
end | |
ActiveSupport.on_load(:action_mailer) do | |
ActionMailer::Base.logger = Rails.logger | |
end | |
end | |
end | |
end |
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