Class: Fig::Command

Inherits:
Object
  • Object
show all
Includes:
Listing, PackageLoad
Defined in:
lib/fig/command.rb,
lib/fig/command/listing.rb,
lib/fig/command/options.rb,
lib/fig/command/optionerror.rb,
lib/fig/command/packageload.rb

Overview

Main program

Defined Under Namespace

Modules: Listing, PackageLoad Classes: OptionError, Options

Constant Summary

Constants included from PackageLoad

PackageLoad::DEFAULT_FIG_FILE

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.get_version ⇒ Object 



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# File 'lib/fig/command.rb', line 36

def self.get_version()
  line = nil

  begin
    File.open(
      "#{File.expand_path(File.dirname(__FILE__) + '/../../VERSION')}"
    ) do |file|
      line = file.gets
    end
  rescue
    $stderr.puts 'Could not retrieve version number. Something has mucked with your Fig install.'

    return nil
  end

  # Note that we accept anything that contains three decimal numbers
  # seperated by periods.  This allows for versions like
  # "4.3.2-super-special-version-in-3D".
  if line !~ %r< \b \d+ [.] \d+ [.] \d+ \b >x
    $stderr.puts %Q<"#{line}" does not look like a version number. Something has mucked with your Fig install.>

    return nil
  end

  return line
end

Instance Method Details

#emit_version ⇒ Object 



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# File 'lib/fig/command.rb', line 153

def emit_version()
  version = Fig::Command.get_version()
  return 1 if version.nil?

  puts File.basename($0) + ' v' + version

  return 0
end

#run_fig(argv) ⇒ Object 



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# File 'lib/fig/command.rb', line 63

def run_fig(argv)
  begin
    @options = Fig::Command::Options.new(argv)
  rescue Fig::UserInputError => error
    $stderr.puts error.to_s # Logging isn't set up yet.
    return 1
  end

  if not @options.exit_code.nil?
    return @options.exit_code
  end
  @descriptor = @options.descriptor

  if @options.help?
    return @options.help
  end

  if @options.version?
    return emit_version()
  end

  configure()

  if @options.clean?
    check_required_package_descriptor('to clean')
    ensure_descriptor_and_file_were_not_both_specified()
    @repository.clean(@descriptor)
    return 0
  end

  if handle_pre_parse_list_options()
    return 0
  end

  if @options.publishing?
    return publish()
  end

  ensure_descriptor_and_file_were_not_both_specified()

  load_package_object()

  if @options.listing()
    handle_post_parse_list_options()
  elsif @options.get()
    # Ruby v1.8 emits "nil" for nil, whereas ruby v1.9 emits the empty
    # string, so, for consistency, we need to ensure that we always emit the
    # empty string.
    puts @environment[@options.get()] || ''
  elsif @options.shell_command
    @environment.execute_shell(@options.shell_command) do
      |command| @operating_system.shell_exec command
    end
  elsif @descriptor
    @environment.include_config(@base_package, @descriptor, nil)
    @environment.execute_config(
      @base_package,
      @descriptor,
      @options.command_extra_argv || []
    ) { |cmd| @operating_system.shell_exec cmd }
  elsif not @repository.updating?
    $stderr.puts "Nothing to do.\n\n"
    $stderr.puts %q<Run "fig --help" for a full list of commands.>
    return 1
  end

  return 0
end

#run_with_exception_handling(argv) ⇒ Object 



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# File 'lib/fig/command.rb', line 132

def run_with_exception_handling(argv)
  begin
    return_code = run_fig(argv)
    return return_code
  rescue Fig::URLAccessError => error
    urls = error.urls.join(', ')
    $stderr.puts "Access to #{urls} in #{error.package}/#{error.version} not allowed."
    return 1
  rescue Fig::UserInputError => error
    log_error_message(error)
    return 1
  rescue OptionParser::InvalidOption => error
    $stderr.puts error.to_s
    $stderr.puts Fig::Command::Options::USAGE
    return 1
  rescue Fig::RepositoryError => error
    log_error_message(error)
    return 1
  end
end