Class: UbcMonitor::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/ubc_monitor/cli.rb

Overview

Run the monitor

Class Method Summary collapse

Class Method Details

.execute(arguments = []) ⇒ Object 



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# File 'lib/ubc_monitor/cli.rb', line 8

def self.execute(arguments=[])
  options = { :file => File.expand_path('~/.ubc_monitor'),
              :email_recipient => nil,
              :email_subject => 'User beancounters has new errors' }

  OptionParser.new do |opts|
    opts.banner = <<-BANNER.gsub(/^          /,'')
      Monitor /proc/user_beancounters and send an email to the systems
      administrator if failcnt has increased since last time ubc_monitor
      was run.

      ubc_monitor uses a file (by default ~/.ubc_monitor) to keep track of
      user_beancounter fail counts. When running without this file (such
      as the first run) any fail count except 0 will be reported.

      Usage: #{File.basename(__FILE__)} [options]
    BANNER
    opts.on("-f", "--file [FILE]", "Log failcounts to this file, default\n" +
            "                                     is #{options[:file]}") { |f| options[:file] = File.expand_path f }
    opts.on("-n", "--no-log", "Don't log fail counts") { |r| options[:file] = nil }
    opts.on("-t", "--email-recipient [EMAIL]", "The recipient of report emails.\n" +
            "                                     If this is not set, no email is sent") { |r| options[:email_recipient] = r }
    opts.on("-s", "--email-subject [SUBJECT]", "Email subject. Default\n" +
            "                                     'value is #{options[:email_subject]}'") { |s| options[:email_subject] = s }
  end.parse!

  monitor = UbcMonitor::Monitor.new(options)
  report = monitor.run

  if report.updated && !options[:email_recipient].nil?
    `echo '"#{report.to_s}"' | mail -s "#{options[:email_subject]}" "#{options[:email_recipient]}"`
  elsif report.updated
    puts report.to_s
  else
    puts "All's swell!"
  end
end