Mercurial > lasercutter

     1 require 'optparse'

     2 

     3 class Graster

     4   class Runner

     5 

     6     attr_reader :options, :args, :opts

     7     

     8     def initialize(args)

     9       @args = args

    10       @options = { :default_config_file => true }

    11       @opts = OptionParser.new do |opts|

    12         opts.banner = "Usage: graster [options] image"

    13 

    14         opts.on "-c", "--config FILE", "Use specified configuration file.",

    15                                        "The default is ./graster.yml" do |c|

    16           @options[:config_file] = c

    17         end

    18 

    19         opts.on "-g", "--generate", "generate a configuration file with","defaults" do

    20           @options[:generate_config] = true

    21         end

    22 

    23         opts.on "-d", "--debug", "Dump useless debug info" do

    24           @options[:debug] = true

    25         end

    26 

    27         Graster::OPTIONS.each do |key,info|

    28           type,sym,*desc = info

    29 

    30           if type.is_a? Array

    31             cast = type[0].name.intern

    32             type = Array

    33           else

    34             cast = type.name.intern

    35           end

    36 

    37           opts.on "--#{key.to_s.gsub /_/, '-'} #{sym}", type, *desc do |x|

    38             @options[:config] ||= {}

    39             if type == Array

    40               x = x.map {|s| Kernel.send(cast,s) }

    41             else

    42               x = Kernel.send(cast,x)

    43             end

    44 

    45             @options[:config][key] = x

    46           end

    47         end

    48       end

    49 

    50       @opts.parse!(args)

    51     end

    52     

    53     def start!

    54       if @options[:generate_config]

    55         print Graster.new(@options).config_to_yaml

    56       else

    57         unless options[:image_file] = args.shift

    58           puts @opts

    59           exit 1

    60         end

    61 

    62         Graster.new(options).generate_all_files

    63       end

    64     end

    65   end

    66 end
author	Robert McIntyre <rlm@mit.edu>
date	Tue, 24 Aug 2010 19:06:45 -0400
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