From: Derek Smith <derekbellnersmith@...>
Date: 2009-05-05T10:01:38+09:00
Subject: my logroll code, please critique

My goal is to keep 10 files each at 100Mb. Please critique and suggest
any corrections I need to make.  Thank you!



#!/usr/bin/ruby -w -W 2

require 'ftools'
require 'fileutils'

=begin
#-----------------------------
File::LOCK_SH     # shared lock (for reading)
File::LOCK_EX     # exclusive lock (for writing)
File::LOCK_NB     # non-blocking request
File::LOCK_UN     # free lock
#-----------------------------
=end


###-- 10 files at 100Mb before rolling begins ---##

FSIZE = 104860000

Dir.chdir("/cygdrive/c/temp/log") \
    or raise StandardError, "Change dir failed to ~aevrlog!"

unless File.exists?("/cygdrive/c/temp/log/zipped")
    File.makedirs("zipped") \
    or raise StandardError, "Make dir failed to ~aevrlog/zipped!"
end

array1 = Dir.glob("dev*.log")
array2 = Dir.glob("mon*.log")
array3 = Dir.glob("fer*_se*.out")
array4 = Dir.glob("fer*_se*.log")
array5 = Dir.glob("fer*_in*.log")

if (array1.length >= 1)
    array1.each { |file|

    if (File.size(file) > FSIZE)
        `/usr/bin/gzip "#{file}"`
        FileUtils.mv("#{file}.gz","/cygdrive/c/temp/log/zipped")
        FileUtils.touch("development.log")
    end
    }
end

Dir.chdir("/cygdrive/c/temp/log/zipped") \
    or raise StandardError, "Change dir failed to ~aevrlog!"

array1_1 = Dir["/cygdrive/c/temp/log/zipped/dev*.gz"]

    if (array1_1.length >= 1)
        if File.exists?("development.log.11.gz")
            FileUtils.rm_r
Dir.glob("/cygdrive/c/temp/log/zipped/dev*11.gz")
        end
        if File.exists?("development.log.10.gz")
            File.copy("development.log.10.gz", "development.log.11.gz")
        end
        if File.exists?("development.log.8.gz")
            File.copy("development.log.8.gz", "development.log.9.gz")
        end
        if File.exists?("development.log.7.gz")
            File.copy("development.log.7.gz", "development.log.8.gz")
        end
        if File.exists?("development.log.6.gz")
            File.copy("development.log.6.gz", "development.log.7.gz")
        end
        if File.exists?("development.log.5.gz")
            File.copy("development.log.5.gz", "development.log.6.gz")
        end
        if File.exists?("development.log.4.gz")
            File.copy("development.log.4.gz", "development.log.5.gz")
        end
        if File.exists?("development.log.3.gz")
            File.copy("development.log.3.gz", "development.log.4.gz")
        end
        if File.exists?("development.log.2.gz")
            File.copy("development.log.2.gz", "development.log.3.gz")
        end
        if File.exists?("development.log.1.gz")
            File.copy("development.log.1.gz", "development.log.2.gz")
        end
        if File.exists?("development.log.gz")
            File.copy("development.log.gz", "development.log.1.gz")
        end
    end
-- 
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