Class: Templater::CLI::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/templater/cli/parser.rb

Overview

:nodoc:

Class Method Summary collapse

Class Method Details

.error_message(e) ⇒ Object 



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# File 'lib/templater/cli/parser.rb', line 78

def self.error_message(e)
  "One or more unknown options given: #{e.args.join(', ')}"
end

.parse(args) ⇒ Object 



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# File 'lib/templater/cli/parser.rb', line 10

def self.parse(args)
  # The options specified on the command line will be collected in *options*.
  # We set default values here.
  options = {}
  options[:pretend] = false
  options[:force] = false
  options[:skip] = false
  options[:quiet] = false
  options[:verbose] = false
  options[:help] = false
  options[:version] = false

  opts = OptionParser.new do |opts|

    opts.banner = ""

    if block_given?
      yield opts, options
      opts.separator ""
    end

    opts.separator "General options:"

    opts.on("-p", "--pretend", "Run, but do not make any changes.") do |s|
      options[:pretend] = s
    end

    opts.on("-f", "--force", "Overwrite files that already exist.") do |s|
      options[:force] = s
    end

    opts.on("-s", "--skip", "Skip files that already exist.") do |s|
      options[:skip] = s
    end
  
    opts.on("-d", "--delete", "Delete files that have previously been generated with this generator.") do |s|
      options[:delete] = s
    end
  
    opts.on("--no-color", "Don't colorize the output") do
      options[:no_color] = true
    end

    opts.on("-h", "--help", "Show this message") do
      options[:help] = true
    end
    
    opts.on("--debug", "Do not catch errors") do
      options[:debug] = true
    end

  end

  def opts.inspect; "<#OptionParser #{object_id}>"; end

  options[:opts] = opts

  begin
    opts.parse!(args)
  rescue OptionParser::InvalidOption => e
    puts
    puts error_message(e)
    puts
  end

  options
end