Class: LogTwuncator::ServiceCommand

Inherits:
Object
  • Object
show all
Defined in:
lib/log_twuncator/service.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ServiceCommand

Returns a new instance of ServiceCommand.



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# File 'lib/log_twuncator/service.rb', line 8

def initialize
  @options = { :delay => 5}
end

Instance Attribute Details

#command ⇒ Object (readonly)

Returns the value of attribute command.



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# File 'lib/log_twuncator/service.rb', line 6

def command
  @command
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/log_twuncator/service.rb', line 6

def options
  @options
end

Instance Method Details

#parse(args) ⇒ Object 



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# File 'lib/log_twuncator/service.rb', line 20

def parse(args)
  begin
    opts = OptionParser.new do |opts|          
      opts.separator ""
      opts.banner = "Usage: log_twuncator_service <command> [options]"
      opts.separator ""
      opts.separator "Specific options:"
      opts.separator ""
      opts.separator "Commands : install, remove, start and stop"
      opts.separator ""
      opts.on("-N", "--name SERVICE_NAME", String, "Name of windows service") do |v|
        @options[:name] = v
      end
      
      if @command == 'install'
        opts.on("-c", "--config FILE", String, "Config file with log file truncation settings") do |v|
          @options[:config] = v
        end
      
        opts.on("-d", "--delay N", Integer, "Check files for truncation every N minutes") do |v|
          @options[:delay] = v
        end
  
        opts.on("-l", "--log FILE", String, "Log file for truncator") do |v|
          @options[:log] = v
        end
      end
      
      opts.on_tail("-h", "--help", "Show this message") do
        puts opts.help
        exit
      end
    end
    opts.parse!(args)        
    validate_options
  rescue OptionParser::ParseError => e
    puts e
    puts opts
  end
end

#run(args) ⇒ Object 



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# File 'lib/log_twuncator/service.rb', line 12

def run(args)
  @command = args.shift unless args[0] == '-h'
  @command = @command.downcase if @command
  
  parse(args)
  @options
end

#validate_options ⇒ Object 



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# File 'lib/log_twuncator/service.rb', line 61

def validate_options
  errors = []
  errors << "Service name is required (switch -N)" unless @options[:name]
  if @command == 'install'
    errors << "Delay is required (switch -d)" unless @options[:delay]
    errors << "Config file is required (switch -c)" unless @options[:config]
    errors << "Log file is required (switch -l)" unless @options[:log]
    errors << "Config file does not exist" if @options[:config] && !FileTest.exists?(@options[:config])
  end    
  
  if errors.size > 0
    puts "Error found."
    puts errors.join("\n")
    exit
  end
end