fix (slash) logger
This commit is contained in:
Torsten Ruger
parent
969fa758a1
commit
1b887c0186
136
lib/logger.rb
136
lib/logger.rb
@ -1,5 +1,6 @@
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# Copied logger from logger gem.
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# gemoved monitor for opal
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# removed monitor for opal
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# rmoevd shifting and file options
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# == Description
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#
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@ -268,33 +269,27 @@ class Logger
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#
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# === Synopsis
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#
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# Logger.new(name, shift_age = 7, shift_size = 1048576)
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# Logger.new(name, shift_age = 'weekly')
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# Logger.new(name)
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# Logger.new(name)
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#
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# === Args
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#
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# +logdev+::
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# The log device. This is a filename (String) or IO object (typically
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# +STDOUT+, +STDERR+, or an open file).
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# +shift_age+::
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# Number of old log files to keep, *or* frequency of rotation (+daily+,
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# +weekly+ or +monthly+).
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# +shift_size+::
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# Maximum logfile size (only applies when +shift_age+ is a number).
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#
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# === Description
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#
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# Create an instance.
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#
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def initialize(logdev, shift_age = 0, shift_size = 1048576)
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def initialize(logdev)
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@progname = nil
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@level = DEBUG
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@default_formatter = Formatter.new
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@formatter = nil
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@logdev = nil
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if logdev
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@logdev = LogDevice.new(logdev, :shift_age => shift_age,
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:shift_size => shift_size)
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@logdev = LogDevice.new(logdev)
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end
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end
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@ -350,10 +345,10 @@ class Logger
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progname ||= @progname
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if message.nil?
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if block_given?
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message = yield
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message = yield
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else
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message = progname
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progname = @progname
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message = progname
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progname = @progname
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end
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end
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@logdev.write(
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@ -518,36 +513,12 @@ private
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attr_reader :dev
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attr_reader :filename
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def initialize(log = nil, opt = {})
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@dev = @filename = @shift_age = @shift_size = nil
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if log.respond_to?(:write) and log.respond_to?(:close)
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@dev = log
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else
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@dev = open_logfile(log)
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@dev.sync = true
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@filename = log
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@shift_age = opt[:shift_age] || 7
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@shift_size = opt[:shift_size] || 1048576
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end
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def initialize(log)
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@dev = log
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end
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def write(message)
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begin
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if @shift_age and @dev.respond_to?(:stat)
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begin
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check_shift_log
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rescue
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warn("log shifting failed. #{$!}")
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end
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end
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begin
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@dev.write(message)
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rescue
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warn("log writing failed. #{$!}")
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end
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rescue Exception => ignored
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warn("log writing failed. #{ignored}")
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end
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@dev.write(message)
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end
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def close
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@ -560,87 +531,8 @@ private
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private
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def open_logfile(filename)
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if (FileTest.exist?(filename))
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open(filename, (File::WRONLY | File::APPEND))
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else
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create_logfile(filename)
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end
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end
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def create_logfile(filename)
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logdev = open(filename, (File::WRONLY | File::APPEND | File::CREAT))
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logdev.sync = true
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add_log_header(logdev)
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logdev
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end
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def add_log_header(file)
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file.write(
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"# Logfile created on %s by %s\n" % [Time.now.to_s, Logger::ProgName]
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)
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end
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SiD = 24 * 60 * 60
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def check_shift_log
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if @shift_age.is_a?(Integer)
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# Note: always returns false if '0'.
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if @filename && (@shift_age > 0) && (@dev.stat.size > @shift_size)
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shift_log_age
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end
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else
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now = Time.now
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period_end = previous_period_end(now)
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if @dev.stat.mtime <= period_end
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shift_log_period(period_end)
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end
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end
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end
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def shift_log_age
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(@shift_age-3).downto(0) do |i|
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if FileTest.exist?("#{@filename}.#{i}")
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File.rename("#{@filename}.#{i}", "#{@filename}.#{i+1}")
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end
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end
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@dev.close rescue nil
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File.rename("#{@filename}", "#{@filename}.0")
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@dev = create_logfile(@filename)
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return true
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end
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def shift_log_period(period_end)
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postfix = period_end.strftime("%Y%m%d") # YYYYMMDD
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age_file = "#{@filename}.#{postfix}"
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if FileTest.exist?(age_file)
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# try to avoid filename crash caused by Timestamp change.
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idx = 0
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# .99 can be overridden; avoid too much file search with 'loop do'
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while idx < 100
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idx += 1
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age_file = "#{@filename}.#{postfix}.#{idx}"
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break unless FileTest.exist?(age_file)
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end
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end
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@dev.close rescue nil
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File.rename("#{@filename}", age_file)
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@dev = create_logfile(@filename)
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return true
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end
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def previous_period_end(now)
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case @shift_age
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when /^daily$/
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eod(now - 1 * SiD)
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when /^weekly$/
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eod(now - ((now.wday + 1) * SiD))
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when /^monthly$/
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eod(now - now.mday * SiD)
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else
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now
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end
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end
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def eod(t)
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Time.mktime(t.year, t.month, t.mday, 23, 59, 59)
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@ -738,8 +630,8 @@ private
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# Sets the log device for this application. See <tt>Logger.new</tt> for an explanation
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# of the arguments.
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#
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def set_log(logdev, shift_age = 0, shift_size = 1024000)
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@log = Logger.new(logdev, shift_age, shift_size)
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def set_log(logdev)
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@log = Logger.new(logdev)
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@log.progname = @appname
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@log.level = @level
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end
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