/usr/lib/ruby/vendor_ruby/log4r/outputter/datefileoutputter.rb is in ruby-log4r 1.1.10-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | # = DateFileOutputter
#
# Subclass of FileOutputter that changes the log file daily. When a new
# day begins, a new file is created with the date included in the name.
#
# == Usage
#
# df_out = DateFileOutputter.new('name',
# :dirname="/tmp", :date_pattern=>"%m-%d"
# )
#
# == Rate of Change
#
# A new logfile is created whenever the current time as formatted by the date
# pattern no longer matches the previous time. (This is a simple String
# comparison.) So, in order to change the frequency of the rollover, just
# alter the date pattern to match how fast the files should be generated.
# For instance, to generate files by the minute,
#
# df_out.date_pattern = "%M"
#
# This causes the following files to show up one minute apart, asuming the
# script starts at the 4th minute of the hour:
#
# file_04.rb
# file_05.rb
# file_06.rb
# ...
#
# The only limitation of this approach is that the precise time cannot be
# recorded as the smallest time interval equals the rollover period for this
# system.
require "log4r/outputter/fileoutputter"
require "log4r/staticlogger"
module Log4r
# Additional hash arguments are:
#
# [<tt>:dirname</tt>] Directory of the log file
# [<tt>:date_pattern</tt>] Time.strftime format string (default is "%Y-%m-%d")
class DateFileOutputter < FileOutputter
DEFAULT_DATE_FMT = "%Y-%m-%d"
def initialize(_name, hash={})
@DatePattern = (hash[:date_pattern] or hash['date_pattern'] or
DEFAULT_DATE_FMT)
@DateStamp = Time.now.strftime( @DatePattern);
_dirname = (hash[:dirname] or hash['dirname'])
# hash[:dirname] masks hash[:filename]
if _dirname
if not FileTest.directory?( _dirname)
raise StandardError, "'#{_dirname}' must be a valid directory", caller
end
end
_filename = (hash[:filename] or hash['filename'])
if _filename.nil?
@filebase = File.basename( $0, '.rb') + ".log"
else
@filebase = File.basename((hash[:filename] or hash['filename'] or ""))
end
# Get rid of the 'nil' in the path
path = [_dirname, @filebase.sub(/(\.\w*)$/, "_#{@DateStamp}" + '\1')].compact
hash[:filename] = hash['filename'] = File.join(path)
super(_name, hash)
end
#######
private
#######
# perform the write
def write(data)
change if requiresChange
super
end
# construct a new filename from the DateStamp
def makeNewFilename
@DateStamp = Time.now.strftime( @DatePattern);
@filename = File.join(File.dirname(@filename),
@filebase.sub(/(\.\w*)$/, "_#{@DateStamp}" + '\1'))
end
# does the file require a change?
def requiresChange
_DateStamp = Time.now.strftime( @DatePattern);
if not _DateStamp == @DateStamp
@DateStamp = _DateStamp
return true
end
false
end
# change the file
def change
begin
@out.close
rescue
Logger.log_internal {
"DateFileOutputter '#{@name}' could not close #{@filename}"
}
end
makeNewFilename
@out = File.new(@filename, (@trunc ? "w" : "a"))
Logger.log_internal {
"DateFileOutputter '#{@name}' now writing to #{@filename}"
}
end
end
end
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