138 lines
3.7 KiB
Ruby
138 lines
3.7 KiB
Ruby
module Whenever
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class JobList
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def initialize(options)
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@jobs = Hash.new
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@env = Hash.new
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case options
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when String
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config = options
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when Hash
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config = if options[:string]
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options[:string]
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elsif options[:file]
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File.read(options[:file])
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end
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pre_set(options[:set])
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end
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eval(config)
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end
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def set(variable, value)
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return if instance_variable_defined?("@#{variable}".to_sym)
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instance_variable_set("@#{variable}".to_sym, value)
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self.class.send(:attr_reader, variable.to_sym)
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end
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def env(variable, value)
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@env[variable.to_s] = value
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end
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def every(frequency, options = {})
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@current_time_scope = frequency
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@options = options
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yield
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end
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def command(task, options = {})
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options[:cron_log] ||= @cron_log unless options[:cron_log] === false
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options[:class] ||= Whenever::Job::Default
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@jobs[@current_time_scope] ||= []
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@jobs[@current_time_scope] << options[:class].new(@options.merge(:task => task).merge(options))
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end
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def runner(task, options = {})
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options.reverse_merge!(:environment => @environment, :path => @path)
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options[:class] = Whenever::Job::Runner
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command(task, options)
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end
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def rake(task, options = {})
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options.reverse_merge!(:environment => @environment, :path => @path)
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options[:class] = Whenever::Job::RakeTask
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command(task, options)
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end
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def generate_cron_output
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[environment_variables, cron_jobs].compact.join
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end
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private
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#
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# Takes a string like: "variable1=something&variable2=somethingelse"
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# and breaks it into variable/value pairs. Used for setting variables at runtime from the command line.
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# Only works for setting values as strings.
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#
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def pre_set(variable_string = nil)
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return if variable_string.blank?
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pairs = variable_string.split('&')
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pairs.each do |pair|
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next unless pair.index('=')
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variable, value = *pair.split('=')
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set(variable.strip, value.strip) unless variable.blank? || value.blank?
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end
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end
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def environment_variables
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return if @env.empty?
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output = []
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@env.each do |key, val|
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output << "#{key}=#{val}\n"
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end
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output << "\n"
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output.join
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end
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#
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# Takes the standard cron output that Whenever generates and finds
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# similar entries that can be combined. For example: If a job should run
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# at 3:02am and 4:02am, instead of creating two jobs this method combines
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# them into one that runs on the 2nd minute at the 3rd and 4th hour.
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#
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def combine(entries)
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entries.map! { |entry| entry.split(/ +/,6 )}
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0.upto(4) do |f|
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(entries.length-1).downto(1) do |i|
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next if entries[i][f] == '*'
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comparison = entries[i][0...f] + entries[i][f+1..-1]
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(i-1).downto(0) do |j|
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next if entries[j][f] == '*'
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if comparison == entries[j][0...f] + entries[j][f+1..-1]
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entries[j][f] += ',' + entries[i][f]
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entries.delete_at(i)
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break
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end
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end
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end
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end
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entries.map { |entry| entry.join(' ') }
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end
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def cron_jobs
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return if @jobs.empty?
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output = []
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@jobs.each do |time, jobs|
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jobs.each do |job|
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Whenever::Output::Cron.output(time, job) do |cron|
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cron << " >> #{job.cron_log} 2>&1" if job.cron_log
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cron << "\n\n"
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output << cron
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end
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end
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end
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combine(output).join
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end
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end
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end
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