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# File 'lib/nanoc3/cli/base.rb', line 100

def global_option_definitions
  [
    {
      :long => 'help', :short => 'h', :argument => :forbidden,
      :desc => 'show this help message and quit'
    },
    {
      :long => 'no-color', :short => 'C', :argument => :forbidden,
      :desc => 'disable color'
    },
    {
      :long => 'version', :short => 'v', :argument => :forbidden,
      :desc => 'show version information and quit'
    },
    {
      :long => 'verbose', :short => 'V', :argument => :forbidden,
      :desc => 'make nanoc output more detailed'
    },
    {
      :long => 'debug', :short => 'd', :argument => :forbidden,
      :desc => 'enable debugging (set $DEBUG to true)'
    },
    {
      :long => 'warn', :short => 'w', :argument => :forbidden,
      :desc => 'enable warnings'
    }
  ]
end

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# File 'lib/nanoc3/cli/base.rb', line 129

def handle_option(option)
  case option
  when :version
    puts "nanoc #{Nanoc3::VERSION} (c) 2007-2009 Denis Defreyne."
    puts "Ruby #{RUBY_VERSION} (#{RUBY_RELEASE_DATE}) running on #{RUBY_PLATFORM}"
    exit 0
  when :verbose
    Nanoc3::CLI::Logger.instance.level = :low
  when :debug
    $DEBUG = true
  when :warn
    $-w = true
  when :'no-color'
    Nanoc3::CLI::Logger.instance.color = false
  when :help
    show_help
    exit 0
  end
end

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# File 'lib/nanoc3/cli/base.rb', line 30

def require_site
  if site.nil?
    $stderr.puts 'The current working directory does not seem to be a ' +
                 'valid/complete nanoc site directory; aborting.'
    exit 1
  end
end

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# File 'lib/nanoc3/cli/base.rb', line 79

def set_vcs(vcs_name)
  # Skip if not possible
  return if vcs_name.nil? || site.nil?

  # Find VCS
  vcs_class = Nanoc3::Extra::VCS.named(vcs_name.to_sym)
  if vcs_class.nil?
    $stderr.puts "A VCS named #{vcs_name} was not found; aborting."
    exit 1
  end

  site.data_sources.each do |data_source|
    # Skip if not possible
    next if !data_source.respond_to?(:vcs=)

    # Set VCS
    data_source.vcs = vcs_class.new
  end
end

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# File 'lib/nanoc3/cli/base.rb', line 39

def site
  # Load site if possible
  if File.file?('config.yaml') && (!self.instance_variable_defined?(:@site) || @site.nil?)
    begin
      @site = Nanoc3::Site.new('.')
    rescue Nanoc3::Errors::UnknownDataSource => e
      $stderr.puts "Unknown data source: #{e}"
      exit 1
    rescue StandardError, ScriptError => error
      # Header
      $stderr.puts '+--- /!\ ERROR /!\ -------------------------------------------+'
      $stderr.puts '| An exception occured while loading the site. If you think   |'
      $stderr.puts '| this is a bug in nanoc, please do report it at              |'
      $stderr.puts '| <http://projects.stoneship.org/trac/nanoc/newticket> --     |'
      $stderr.puts '| thanks in advance!                                          |'
      $stderr.puts '+-------------------------------------------------------------+'

      # Exception
      $stderr.puts
      $stderr.puts '=== MESSAGE:'
      $stderr.puts
      $stderr.puts "#{error.class}: #{error.message}"

      # Backtrace
      require 'enumerator'
      $stderr.puts
      $stderr.puts '=== BACKTRACE:'
      $stderr.puts
      $stderr.puts error.backtrace.to_enum(:each_with_index).map { |item, index| "  #{index}. #{item}" }.join("\n")

      exit 1
    end
  end

  @site
end