Class: Raketab

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

Constant Summary collapse

Month = 
enum %w[January February March April May June July August September October November December], 1
Weekday = 
enum %w[Sunday Monday Tuesday Wednesday Thursday Friday Saturday]

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Raketab

Returns a new instance of Raketab.



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# File 'lib/raketab.rb', line 27

def initialize
  @tabs = []
end

Class Method Details

.methodize_enum(enum) ⇒ Object 



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# File 'lib/raketab.rb', line 9

def methodize_enum(enum)
  enum.each do |e| 
    p = Proc.new { e }
    define_method(e.to_s.downcase,    p) 
    define_method(e.to_abbr.downcase, p) 
  end
end

.schedule(&block) ⇒ Object 



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# File 'lib/raketab.rb', line 18

def schedule(&block)
  tab = Raketab.new
  tab.instance_eval(&block)
  tab
end

Instance Method Details

#run(command, options = {}) ⇒ Object 



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# File 'lib/raketab.rb', line 31

def run(command, options={})
  month, wday, mday, hour, min = options[:month]   || options[:months]   || options[:mon], 
                                 options[:weekday] || options[:weekdays] || options[:wday], 
                                 options[:day]     || options[:days]     || options[:mday],
                                 options[:hour]    || options[:hours],
                                 options[:minute]  || options[:minutes]  || options[:min]

  # make sure we have ints instead of enums, yo
  month, wday = [[month, Month], [wday, Weekday]].map do |element,type| 
    if element.kind_of?(Array) # just arrays for now
     element.each_with_index { |e,i| element[i] = enum_to_i(e,type) } 
    else
     enum_to_i(element,type)
    end
  end

  [:each, :every, :on, :in, :at, :the].each do |type|
    if options[type]
      if(options[type] =~ /:/)
        from = options[type]
      else
        from, ignore, exclusive, to = options[type].to_s.match(/(\w+)(\.\.(\.?)(\w+))?/)[1..4].map { |m| m.gsub(/s$/i, '') if m } 
      end

      parse = Date._parse(from)
      range = to ? Date._parse(to) : {}

      month ||= get_value(parse, range, exclusive == '.', :mon)
      wday  ||= get_value(parse, range, exclusive == '.', :wday)
      mday  ||= get_value(parse, range, exclusive == '.', :mday)
      hour  ||= get_value(parse, range, exclusive == '.', :hour)
      min   ||= get_value(parse, range, exclusive == '.', :min)
    end
  end

  # deal with any arrays and ranges
  min, hour, mday, wday, month = [min, hour, mday, wday, month].map do |type| 
   type.respond_to?(:map) ? type.map.join(',') : type    
  end

  # special cases with hours
  hour ||= options[:at].to_i if options[:at] # :at => "5 o'clock" / "5" / 5

  # fill missing items
  hour, min         = [hour, min].map { |t| t || '0' }
  month, wday, mday = [month, wday, mday].map { |t| t || '*' }    
  
  # put it together
  @tabs << "#{min} #{hour} #{mday} #{month} #{wday} #{command}"
end

#tabs ⇒ Object 



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# File 'lib/raketab.rb', line 82

def tabs
  @tabs.join("\n")
end