mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
* lib/logger.rb: new file. Logger, formerly called devel-logger or
Devel::Logger. * sample/logger/*: new file. samples of logger.rb. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4568 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nahi
parent
ea2e8d3592
commit
9c219837b3
6 changed files with 684 additions and 0 deletions
|
|
@ -1,3 +1,10 @@
|
|||
Mon Sep 18 15:27:05 2003 NAKAMURA, Hiroshi <nahi@ruby-lang.org>
|
||||
|
||||
* lib/logger.rb: new file. Logger, formerly called devel-logger or
|
||||
Devel::Logger.
|
||||
|
||||
* sample/logger/*: new file. samples of logger.rb.
|
||||
|
||||
Wed Sep 17 23:41:45 2003 Yukihiro Matsumoto <matz@ruby-lang.org>
|
||||
|
||||
* eval.c (localjump_destination): should not raise ThreadError
|
||||
|
|
|
|||
4
MANIFEST
4
MANIFEST
|
|
@ -180,6 +180,7 @@ lib/irb/workspace.rb
|
|||
lib/irb/ws-for-case-2.rb
|
||||
lib/irb/xmp.rb
|
||||
lib/jcode.rb
|
||||
lib/logger.rb
|
||||
lib/mailread.rb
|
||||
lib/mathn.rb
|
||||
lib/matrix.rb
|
||||
|
|
@ -444,6 +445,9 @@ sample/less.rb
|
|||
sample/list.rb
|
||||
sample/list2.rb
|
||||
sample/list3.rb
|
||||
sample/logger/app.rb
|
||||
sample/logger/log.rb
|
||||
sample/logger/shifting.rb
|
||||
sample/mine.rb
|
||||
sample/mkproto.rb
|
||||
sample/mpart.rb
|
||||
|
|
|
|||
574
lib/logger.rb
Normal file
574
lib/logger.rb
Normal file
|
|
@ -0,0 +1,574 @@
|
|||
# Logger -- Logging utility.
|
||||
#
|
||||
# $Id$
|
||||
#
|
||||
# This module is copyrighted free software by NAKAMURA, Hiroshi.
|
||||
# You can redistribute it and/or modify it under the same term as Ruby.
|
||||
#
|
||||
# See Logger at first.
|
||||
|
||||
|
||||
# DESCRIPTION
|
||||
# Logger -- Logging utility.
|
||||
#
|
||||
# How to create a logger.
|
||||
# 1. Create logger which logs messages to STDERR/STDOUT.
|
||||
# logger = Logger.new(STDERR)
|
||||
# logger = Logger.new(STDOUT)
|
||||
#
|
||||
# 2. Create logger for the file which has the specified name.
|
||||
# logger = Logger.new('logfile.log')
|
||||
#
|
||||
# 3. Create logger for the specified file.
|
||||
# file = open('foo.log', File::WRONLY | File::APPEND)
|
||||
# # To create new (and to remove old) logfile, add File::CREAT like;
|
||||
# # file = open('foo.log', File::WRONLY | File::APPEND | File::CREAT)
|
||||
# logger = Device::Logger.new(file)
|
||||
#
|
||||
# 4. Create logger which ages logfile automatically. Leave 10 ages and each
|
||||
# file is about 102400 bytes.
|
||||
# logger = Device::Logger.new('foo.log', 10, 102400)
|
||||
#
|
||||
# 5. Create logger which ages logfile daily/weekly/monthly automatically.
|
||||
# logger = Logger.new('foo.log', 'daily')
|
||||
# logger = Logger.new('foo.log', 'weekly')
|
||||
# logger = Logger.new('foo.log', 'monthly')
|
||||
#
|
||||
# How to log a message.
|
||||
#
|
||||
# 1. Message in block.
|
||||
# logger.fatal { "Argument 'foo' not given." }
|
||||
#
|
||||
# 2. Message as a string.
|
||||
# logger.error "Argument #{ @foo } mismatch."
|
||||
#
|
||||
# 3. With progname.
|
||||
# logger.info('initialize') { "Initializing..." }
|
||||
#
|
||||
# 4. With severity.
|
||||
# logger.add(Logger::FATAL) { 'Fatal error!' }
|
||||
#
|
||||
# How to close a logger.
|
||||
#
|
||||
# logger.close
|
||||
#
|
||||
# Setting severity threshold.
|
||||
#
|
||||
# 1. Original interface.
|
||||
# logger.level = Logger::WARN
|
||||
#
|
||||
# 2. Log4r (somewhat) compatible interface.
|
||||
# logger.level = Logger::INFO
|
||||
#
|
||||
# DEBUG < INFO < WARN < ERROR < FATAL < UNKNOWN
|
||||
#
|
||||
# Format.
|
||||
#
|
||||
# Log format:
|
||||
# SeverityID, [Date Time mSec #pid] SeverityLabel -- ProgName: message
|
||||
#
|
||||
# Log sample:
|
||||
# I, [Wed Mar 03 02:34:24 JST 1999 895701 #19074] INFO -- Main: info.
|
||||
#
|
||||
class Logger
|
||||
/: (\S+),v (\S+)/ =~ %q$Id$
|
||||
ProgName = "#{$1}/#{$2}"
|
||||
|
||||
class Error < RuntimeError; end
|
||||
class ShiftingError < Error; end
|
||||
|
||||
# Logging severity.
|
||||
module Severity
|
||||
DEBUG = 0
|
||||
INFO = 1
|
||||
WARN = 2
|
||||
ERROR = 3
|
||||
FATAL = 4
|
||||
UNKNOWN = 5
|
||||
end
|
||||
include Severity
|
||||
|
||||
# Logging severity threshold.
|
||||
attr_accessor :level
|
||||
|
||||
# Logging program name.
|
||||
attr_accessor :progname
|
||||
|
||||
# Logging date-time format (string passed to strftime)
|
||||
attr_accessor :datetime_format
|
||||
|
||||
alias sev_threshold level
|
||||
alias sev_threshold= level=
|
||||
|
||||
def debug?; @level <= DEBUG; end
|
||||
def info?; @level <= INFO; end
|
||||
def warn?; @level <= WARN; end
|
||||
def error?; @level <= ERROR; end
|
||||
def fatail?; @level <= FATAL; end
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger.new(name, shift_age = 7, shift_size = 1048576)
|
||||
#
|
||||
# ARGS
|
||||
# log String as filename of logging.
|
||||
# or
|
||||
# IO as logging device(i.e. STDERR).
|
||||
# shift_age An Integer Num of files you want to keep aged logs.
|
||||
# 'daily' Daily shifting.
|
||||
# 'weekly' Weekly shifting (Every monday.)
|
||||
# 'monthly' Monthly shifting (Every 1th day.)
|
||||
# shift_size Shift size threshold when shift_age is an integer.
|
||||
# Otherwise (like 'daily'), shift_size will be ignored.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Create an instance.
|
||||
#
|
||||
def initialize(logdev, shift_age = 0, shift_size = 1048576)
|
||||
@logdev = nil
|
||||
@progname = nil
|
||||
@level = DEBUG
|
||||
@datetime_format = nil
|
||||
@logdev = LogDevice.new(logdev, :shift_age => shift_age, :shift_size => shift_size) if logdev
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger#add(severity, msg = nil, progname = nil) { ... } = nil
|
||||
#
|
||||
# ARGS
|
||||
# severity Severity. Constants are defined in Logger namespace.
|
||||
# DEBUG, INFO, WARN, ERROR, FATAL, or UNKNOWN.
|
||||
# msg Message. A string, exception, or something. Can be omitted.
|
||||
# progname Program name string. Can be omitted.
|
||||
# Logged as a msg if no msg and block are given.
|
||||
# block Can be omitted.
|
||||
# Called to get a message string if msg is nil.
|
||||
#
|
||||
# RETURN
|
||||
# true if succeed, false if failed.
|
||||
# When the given severity is not enough severe,
|
||||
# Log no message, and returns true.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Log a log if the given severity is enough severe.
|
||||
#
|
||||
# BUGS
|
||||
# Logfile is not locked.
|
||||
# Append open does not need to lock file.
|
||||
# But on the OS which supports multi I/O, records possibly be mixed.
|
||||
#
|
||||
def add(severity, msg = nil, progname = nil, &block)
|
||||
severity ||= UNKNOWN
|
||||
if @logdev.nil? or severity < @level
|
||||
return true
|
||||
end
|
||||
progname ||= @progname
|
||||
if msg.nil?
|
||||
if block_given?
|
||||
msg = yield
|
||||
else
|
||||
msg = progname
|
||||
progname = @progname
|
||||
end
|
||||
end
|
||||
@logdev.write(
|
||||
format_message(
|
||||
format_severity(severity),
|
||||
format_datetime(Time.now),
|
||||
msg2str(msg),
|
||||
progname
|
||||
)
|
||||
)
|
||||
true
|
||||
end
|
||||
alias log add
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger#debug(progname = nil) { ... } = nil
|
||||
# Logger#info(progname = nil) { ... } = nil
|
||||
# Logger#warn(progname = nil) { ... } = nil
|
||||
# Logger#error(progname = nil) { ... } = nil
|
||||
# Logger#fatal(progname = nil) { ... } = nil
|
||||
# Logger#unknown(progname = nil) { ... } = nil
|
||||
#
|
||||
# ARGS
|
||||
# progname Program name string. Can be omitted.
|
||||
# Logged as a msg if no block are given.
|
||||
# block Can be omitted.
|
||||
# Called to get a message string if msg is nil.
|
||||
#
|
||||
# RETURN
|
||||
# See Logger#add .
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Log a log.
|
||||
#
|
||||
def debug(progname = nil, &block)
|
||||
add(DEBUG, nil, progname, &block)
|
||||
end
|
||||
|
||||
def info(progname = nil, &block)
|
||||
add(INFO, nil, progname, &block)
|
||||
end
|
||||
|
||||
def warn(progname = nil, &block)
|
||||
add(WARN, nil, progname, &block)
|
||||
end
|
||||
|
||||
def error(progname = nil, &block)
|
||||
add(ERROR, nil, progname, &block)
|
||||
end
|
||||
|
||||
def fatal(progname = nil, &block)
|
||||
add(FATAL, nil, progname, &block)
|
||||
end
|
||||
|
||||
def unknown(progname = nil, &block)
|
||||
add(UNKNOWN, nil, progname, &block)
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger#close
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Close the logging device.
|
||||
#
|
||||
def close
|
||||
@logdev.close if @logdev
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
# Severity label for logging. (max 5 char)
|
||||
SEV_LABEL = %w(DEBUG INFO WARN ERROR FATAL ANY);
|
||||
|
||||
def format_severity(severity)
|
||||
SEV_LABEL[severity] || 'UNKNOWN'
|
||||
end
|
||||
|
||||
def format_datetime(datetime)
|
||||
if @datetime_format.nil?
|
||||
datetime.strftime("%Y-%m-%dT%H:%M:%S.") << "%6d " % datetime.usec
|
||||
else
|
||||
datetime.strftime(@datetime_format)
|
||||
end
|
||||
end
|
||||
|
||||
def format_message(severity, timestamp, msg, progname)
|
||||
line = '%s, [%s#%d] %5s -- %s: %s' << "\n"
|
||||
line % [severity[0..0], timestamp, $$, severity, progname, msg]
|
||||
end
|
||||
|
||||
def msg2str(msg)
|
||||
if msg.is_a?(::String)
|
||||
msg
|
||||
elsif msg.is_a?(::Exception)
|
||||
"#{ msg.message } (#{ msg.class })\n" << (msg.backtrace || []).join("\n")
|
||||
elsif msg.respond_to?(:to_str)
|
||||
msg.to_str
|
||||
else
|
||||
msg.inspect
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
# LogDevice -- Logging device.
|
||||
class LogDevice
|
||||
attr_reader :dev
|
||||
attr_reader :filename
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger::LogDev.new(name, opt = {})
|
||||
#
|
||||
# ARGS
|
||||
# log String as filename of logging.
|
||||
# or
|
||||
# IO as logging device(i.e. STDERR).
|
||||
# opt Hash of options.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Log device class. Output and shifting of log.
|
||||
# When a String was given, LogDevice opens the file and set sync = true.
|
||||
#
|
||||
# OPTIONS
|
||||
# :shift_age
|
||||
# An Integer Num of files you want to keep aged logs.
|
||||
# 'daily' Daily shifting.
|
||||
# 'weekly' Weekly shifting (Shift every monday.)
|
||||
# 'monthly' Monthly shifting (Shift every 1th day.)
|
||||
#
|
||||
# :shift_size Shift size threshold when :shift_age is an integer.
|
||||
# Otherwise (like 'daily'), it is ignored.
|
||||
#
|
||||
def initialize(log = nil, opt = {})
|
||||
@dev = @filename = @shift_age = @shift_size = nil
|
||||
if log.is_a?(IO)
|
||||
@dev = log
|
||||
elsif log.is_a?(String)
|
||||
@dev = open_logfile(log)
|
||||
@dev.sync = true
|
||||
@filename = log
|
||||
@shift_age = opt[:shift_age] || 7
|
||||
@shift_size = opt[:shift_size] || 1048576
|
||||
else
|
||||
raise ArgumentError.new("Wrong argument: #{ log } for log.")
|
||||
end
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger::LogDev#write(message)
|
||||
#
|
||||
# ARGS
|
||||
# message Message to be logged.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Log a message. If needed, the log device is aged and the new device
|
||||
# is prepared. Log device is not locked. Append open does not need to
|
||||
# lock file but on the OS which supports multi I/O, records possibly be
|
||||
# mixed.
|
||||
#
|
||||
def write(message)
|
||||
if shift_log?
|
||||
begin
|
||||
shift_log
|
||||
rescue
|
||||
raise Logger::ShiftingError.new("Shifting failed. #{$!}")
|
||||
end
|
||||
end
|
||||
|
||||
@dev.write(message)
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Logger::LogDev#close
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Close the logging device.
|
||||
#
|
||||
def close
|
||||
@dev.close
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
def open_logfile(filename)
|
||||
if (FileTest.exist?(filename))
|
||||
open(filename, (File::WRONLY | File::APPEND))
|
||||
else
|
||||
create_logfile(filename)
|
||||
end
|
||||
end
|
||||
|
||||
def create_logfile(filename)
|
||||
logdev = open(filename, (File::WRONLY | File::APPEND | File::CREAT))
|
||||
add_log_header(logdev)
|
||||
logdev
|
||||
end
|
||||
|
||||
def add_log_header(file)
|
||||
file.write(
|
||||
"# Logfile created on %s by %s\n" % [Time.now.to_s, Logger::ProgName]
|
||||
)
|
||||
end
|
||||
|
||||
SiD = 24 * 60 * 60
|
||||
|
||||
def shift_log?
|
||||
if !@shift_age or !@dev.respond_to?(:stat)
|
||||
return false
|
||||
end
|
||||
if (@shift_age.is_a?(Integer))
|
||||
# Note: always returns false if '0'.
|
||||
return (@filename && (@shift_age > 0) && (@dev.stat.size > @shift_size))
|
||||
else
|
||||
now = Time.now
|
||||
limit_time = case @shift_age
|
||||
when /^daily$/
|
||||
eod(now - 1 * SiD)
|
||||
when /^weekly$/
|
||||
eod(now - ((now.wday + 1) * SiD))
|
||||
when /^monthly$/
|
||||
eod(now - now.mday * SiD)
|
||||
else
|
||||
now
|
||||
end
|
||||
return (@dev.stat.mtime <= limit_time)
|
||||
end
|
||||
end
|
||||
|
||||
def shift_log
|
||||
# At first, close the device if opened.
|
||||
if @dev
|
||||
@dev.close
|
||||
@dev = nil
|
||||
end
|
||||
if (@shift_age.is_a?(Integer))
|
||||
(@shift_age-3).downto(0) do |i|
|
||||
if (FileTest.exist?("#{@filename}.#{i}"))
|
||||
File.rename("#{@filename}.#{i}", "#{@filename}.#{i+1}")
|
||||
end
|
||||
end
|
||||
File.rename("#{@filename}", "#{@filename}.0")
|
||||
else
|
||||
now = Time.now
|
||||
postfix_time = case @shift_age
|
||||
when /^daily$/
|
||||
eod(now - 1 * SiD)
|
||||
when /^weekly$/
|
||||
eod(now - ((now.wday + 1) * SiD))
|
||||
when /^monthly$/
|
||||
eod(now - now.mday * SiD)
|
||||
else
|
||||
now
|
||||
end
|
||||
postfix = postfix_time.strftime("%Y%m%d") # YYYYMMDD
|
||||
age_file = "#{@filename}.#{postfix}"
|
||||
if (FileTest.exist?(age_file))
|
||||
raise RuntimeError.new("'#{ age_file }' already exists.")
|
||||
end
|
||||
File.rename("#{@filename}", age_file)
|
||||
end
|
||||
|
||||
@dev = create_logfile(@filename)
|
||||
return true
|
||||
end
|
||||
|
||||
def eod(t)
|
||||
Time.mktime(t.year, t.month, t.mday, 23, 59, 59)
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
# DESCRIPTION
|
||||
# Application -- Add logging support to your application.
|
||||
#
|
||||
# USAGE
|
||||
# 1. Define your application class as a sub-class of this class.
|
||||
# 2. Override 'run' method in your class to do many things.
|
||||
# 3. Instanciate it and invoke 'start'.
|
||||
#
|
||||
# EXAMPLE
|
||||
# class FooApp < Application
|
||||
# def initialize(foo_app, application_specific, arguments)
|
||||
# super('FooApp') # Name of the application.
|
||||
# end
|
||||
#
|
||||
# def run
|
||||
# ...
|
||||
# log(WARN, 'warning', 'my_method1')
|
||||
# ...
|
||||
# @log.error('my_method2') { 'Error!' }
|
||||
# ...
|
||||
# end
|
||||
# end
|
||||
#
|
||||
# status = FooApp.new(....).start
|
||||
#
|
||||
class Application
|
||||
include Logger::Severity
|
||||
|
||||
attr_reader :appname
|
||||
attr_reader :logdev
|
||||
|
||||
# SYNOPSIS
|
||||
# Application.new(appname = '')
|
||||
#
|
||||
# ARGS
|
||||
# appname Name String of the application.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Create an instance. Log device is STDERR by default.
|
||||
#
|
||||
def initialize(appname = nil)
|
||||
@appname = appname
|
||||
@log = Logger.new(STDERR)
|
||||
@log.progname = @appname
|
||||
@level = @log.level
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Application#start
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Start the application.
|
||||
#
|
||||
# RETURN
|
||||
# Status code.
|
||||
#
|
||||
def start
|
||||
status = -1
|
||||
begin
|
||||
log(INFO, "Start of #{ @appname }.")
|
||||
status = run
|
||||
rescue
|
||||
log(FATAL, "Detected an exception. Stopping ... #{$!} (#{$!.class})\n" << $@.join("\n"))
|
||||
ensure
|
||||
log(INFO, "End of #{ @appname }. (status: #{ status.to_s })")
|
||||
end
|
||||
status
|
||||
end
|
||||
|
||||
# SYNOPSIS
|
||||
# Application#set_log(log, shift_age, shift_size)
|
||||
#
|
||||
# ARGS
|
||||
# (Args are explained in the class Logger)
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Set the log device for this application.
|
||||
#
|
||||
def set_log(logdev, shift_age = 0, shift_size = 102400)
|
||||
@log = Logger.new(logdev, shift_age, shift_size)
|
||||
@log.progname = @appname
|
||||
@log.level = @level
|
||||
end
|
||||
|
||||
def log=(logdev)
|
||||
set_log(logdev)
|
||||
end
|
||||
|
||||
|
||||
# SYNOPSIS
|
||||
# Application#level=(severity)
|
||||
#
|
||||
# ARGS
|
||||
# level Severity threshold.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Set severity threshold.
|
||||
#
|
||||
def level=(level)
|
||||
@level = level
|
||||
@log.level = @level
|
||||
end
|
||||
|
||||
protected
|
||||
|
||||
# SYNOPSIS
|
||||
# Application#log(severity, comment = nil) { ... }
|
||||
#
|
||||
# ARGS
|
||||
# severity Severity. See above to give this.
|
||||
# comment Message String.
|
||||
# block Can be omitted. Called to get a message String if
|
||||
# comment is nil or omitted.
|
||||
#
|
||||
# DESCRIPTION
|
||||
# Log a log if the given severity is enough severe.
|
||||
# For more detail, see Log.add.
|
||||
#
|
||||
# RETURN
|
||||
# true if succeed, false if failed.
|
||||
# When the given severity is not enough severe,
|
||||
# Log no message, and returns true.
|
||||
#
|
||||
def log(severity, message = nil, &block)
|
||||
@log.add(severity, message, @appname, &block) if @log
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
def run
|
||||
raise RuntimeError.new('Method run must be defined in the derived class.')
|
||||
end
|
||||
end
|
||||
end
|
||||
46
sample/logger/app.rb
Normal file
46
sample/logger/app.rb
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
#!/usr/bin/env ruby
|
||||
|
||||
require 'logger'
|
||||
|
||||
class MyApp < Logger::Application
|
||||
def initialize(a, b, c)
|
||||
super('MyApp')
|
||||
|
||||
# Set logDevice here.
|
||||
logfile = 'app.log'
|
||||
self.log = logfile
|
||||
self.level = INFO
|
||||
|
||||
# Initialize your application...
|
||||
@a = a
|
||||
@b = b
|
||||
@c = c
|
||||
end
|
||||
|
||||
def run
|
||||
@log.info { 'Started.' }
|
||||
|
||||
@log.info { "This block isn't evaled because 'debug' is not severe here." }
|
||||
@log.debug { "Result = " << foo(0) }
|
||||
@log.info { "So nothing is dumped." }
|
||||
|
||||
@log.info { "This block is evaled because 'info' is enough severe here." }
|
||||
@log.info { "Result = " << foo(0) }
|
||||
@log.info { "Above causes exception, so not reached here." }
|
||||
|
||||
@log.info { 'Finished.' }
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
def foo(var)
|
||||
1 / var
|
||||
end
|
||||
end
|
||||
|
||||
status = MyApp.new(1, 2, 3).start
|
||||
|
||||
if status != 0
|
||||
puts 'Some error(s) occured.'
|
||||
puts 'See "app.log".'
|
||||
end
|
||||
27
sample/logger/log.rb
Normal file
27
sample/logger/log.rb
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
#!/usr/bin/env ruby
|
||||
|
||||
require 'logger'
|
||||
|
||||
log = Logger.new(STDERR)
|
||||
|
||||
def do_log(log)
|
||||
log.debug('do_log1') { "debug" }
|
||||
log.info('do_log2') { "info" }
|
||||
log.warn('do_log3') { "warn" }
|
||||
log.error('do_log4') { "error" }
|
||||
log.fatal('do_log6') { "fatal" }
|
||||
log.unknown('do_log7') { "unknown" }
|
||||
end
|
||||
|
||||
log.level = Logger::DEBUG # Default.
|
||||
do_log(log)
|
||||
|
||||
puts "Set severity threshold 'WARN'."
|
||||
|
||||
log.level = Logger::WARN
|
||||
do_log(log)
|
||||
|
||||
puts "Change datetime format. Thanks to Daniel Berger."
|
||||
|
||||
log.datetime_format = "%d-%b-%Y@%H:%M:%S"
|
||||
do_log(log)
|
||||
26
sample/logger/shifting.rb
Normal file
26
sample/logger/shifting.rb
Normal file
|
|
@ -0,0 +1,26 @@
|
|||
#!/usr/bin/env ruby
|
||||
|
||||
require 'logger'
|
||||
|
||||
logfile = 'shifting.log'
|
||||
# Max 3 age ... logShifting.log, logShifting.log.0, and logShifting.log.1
|
||||
shift_age = 3
|
||||
# Shift log file about for each 1024 bytes.
|
||||
shift_size = 1024
|
||||
|
||||
log = Logger.new(logfile, shift_age, shift_size)
|
||||
|
||||
def do_log(log)
|
||||
log.debug('do_log1') { 'd' * rand(100) }
|
||||
log.info('do_log2') { 'i' * rand(100) }
|
||||
log.warn('do_log3') { 'w' * rand(100) }
|
||||
log.error('do_log4') { 'e' * rand(100) }
|
||||
log.fatal('do_log5') { 'f' * rand(100) }
|
||||
log.unknown('do_log6') { 'u' * rand(100) }
|
||||
end
|
||||
|
||||
(1..10).each do
|
||||
do_log(log)
|
||||
end
|
||||
|
||||
puts 'See shifting.log and shifting.log.[01].'
|
||||
Loading…
Add table
Add a link
Reference in a new issue