Class: YARD::CLI::Command

### Home Classes Methods

### In Files

- lib/yard/cli/command.rb

### Parent

Object

### Methods

- ::run
- #common_options
- #description
- #load_script
- #parse_options
- #unrecognized_option

### Files

- LICENSE.txt
- MIT.txt

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# YARD::CLI::Command

Abstract base class for CLI utilities. Provides some helper methods for the option parser

@abstract @since 0.6.0

### Public Class Methods

run(*args) click to toggle source

Helper method to run the utility on an instance. @see run

    # File lib/yard/cli/command.rb, line 13
    def self.run(*args) new.run(*args) end

### Public Instance Methods

description() click to toggle source

    # File lib/yard/cli/command.rb, line 15
    def description; '' end

### Protected Instance Methods

common_options(opts) click to toggle source

Adds a set of common options to the tail of the OptionParser

@param [OptionParser] opts the option parser object @return [void]

    # File lib/yard/cli/command.rb, line 23
    def common_options(opts)
      opts.separator ""
      opts.separator "Other options:"
      opts.on('-e', '--load FILE', 'A Ruby script to load before running command.') do |file|
        load_script(file)
      end
      opts.on('--plugin PLUGIN', 'Load a YARD plugin (gem with `yard-\ prefix)') do |name|
        # Not actually necessary to load here, this is done at boot in YARD::Config.load_plugins
        # YARD::Config.load_plugin(name)
      end
      opts.on('--legacy', 'Use old style Ruby parser and handlers. ',
                          '  Always on in 1.8.x.') do
        YARD::Parser::SourceParser.parser_type = :ruby18
      end
      opts.on('--safe', 'Enable safe mode for this instance') do
        # Parsed in YARD::Config.load
      end
      opts.on_tail('-q', '--quiet', 'Show no warnings.') { log.level = Logger::ERROR }
      opts.on_tail('--verbose', 'Show more information.') { log.level = Logger::INFO }
      opts.on_tail('--debug', 'Show debugging information.') { log.level = Logger::DEBUG }
      opts.on_tail('--backtrace', 'Show stack traces') { log.show_backtraces = true }
      opts.on_tail('-v', '--version', 'Show version.') { log.puts "yard #{YARD::VERSION}"; exit }
      opts.on_tail('-h', '--help', 'Show this help.')  { log.puts opts; exit }
    end

load_script(file) click to toggle source

Loads a Ruby script. If `Config.options[:safe_mode]` is enabled, this method will do nothing.

@param [String] file the path to the script to load @since 0.6.2

    # File lib/yard/cli/command.rb, line 67
    def load_script(file)
      return if YARD::Config.options[:safe_mode]
      load(file)
    rescue LoadError => load_exception
      log.error "The file `#{file}' could not be loaded:\n#{load_exception}"
      exit
    end

parse_options(opts, args) click to toggle source

Parses the option and gracefully handles invalid switches

@param [OptionParser] opts the option parser object @param [Array<String>] args the arguments passed from input. This

    array will be modified.

@return [void]

    # File lib/yard/cli/command.rb, line 54
    def parse_options(opts, args)
      opts.parse!(args)
    rescue OptionParser::ParseError => err
      unrecognized_option(err)
      args.shift if args.first && args.first[0,1] != '-'
      retry
    end

unrecognized_option(err) click to toggle source

Callback when an unrecognize option is parsed

@param [OptionParser::ParseError] err the exception raised by the

    option parser

    # File lib/yard/cli/command.rb, line 79
    def unrecognized_option(err)
      log.warn "Unrecognized/#{err.message}"
    end

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