Class: DevTools::OptParse

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts) ⇒ OptParse

Returns a new instance of OptParse.



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# File 'lib/devtools/options.rb', line 10

def initialize(opts)
  program_path  = DevTools::PROGRAM
  program_files = []

  %W(~/.#{program_path} ./.#{program_path} ./#{program_path}.conf ./#{program_path}.rc).each do |path|
    program_files.push File.expand_path(path)
  end

  Config.setup do |config|
    config.const_name = 'Options'
    config.use_env    = true
  end

  Config.load_and_set_settings opts[:testing] ? String.new : program_files

  default_options(Options, opts[:defaults]) if opts[:defaults]

  Options.verbose = Options.verbose ? 1 : 0 unless Options.verbose.is_a?(Numeric)
  Options.debug   = true if Options.verbose >= 5

  @parser  ||= common_options opts[:testing]
  @version ||= sprintf "%s v%s (%s v%s)\n",
                       opts[:name] || DevTools::PROGRAM, opts[:version] || DevTools::VERSION,
                       "DevTools", DevTools::VERSION
end

Instance Attribute Details

#parser ⇒ Object (readonly)

Returns the value of attribute parser.



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# File 'lib/devtools/options.rb', line 8

def parser
  @parser
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/devtools/options.rb', line 8

def version
  @version
end

Instance Method Details

#common_options(unit_testing = false) ⇒ Object 



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# File 'lib/devtools/options.rb', line 36

def common_options(unit_testing = false)
  OptionParser.new do |opts|
    opts.on_tail("-h", "--help", "Show this message") do
      unless unit_testing
        puts version + "\n"
        puts opts
        exit
      end
    end

    # Config file
    opts.on_tail("-c", "--config FILE", "Specify an alternate configuration file") do |file|
      Options.add_source! file
      Options.reload!
    end

    # dry-run switch
    opts.on_tail("--dry-run", "Don't actually run commands") do
      Options.dryrun = true
    end

    # Verbose switch
    opts.on_tail("-q", "--quiet", "Run quietly") do
      Options.verbose = 0
    end

    opts.on_tail("-v", "--verbose", "Run verbosely (may be specified more than once)") do
      Options.verbose += 1
    end

    opts.on_tail("--version", "Show version") do
      unless unit_testing
        puts version
        exit
      end
    end
  end
end

#default_options(options, opts) ⇒ Object 



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# File 'lib/devtools/options.rb', line 75

def default_options(options, opts)
  opts.each do |key, value|
    options[key] = value unless options.keys.include?(key)
  end
end