Class: YARD::CLI::YRI

### Home Classes Methods

### In Files

- lib/yard/cli/yri.rb

### Parent

YARD::CLI::Command

### Methods

- ::new
- ::run
- #cache_object
- #description
- #find_object
- #print_object
- #print_usage
- #run

### Files

- LICENSE.txt
- MIT.txt

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No matching classes.

# YARD::CLI::YRI

A tool to view documentation in the console like `ri`

### Constants

CACHE_FILE

  The location in {YARD::CONFIG_DIR} where the YRI cache file is loaded from.

DEFAULT_SEARCH_PATHS

  Default search paths that should be loaded dynamically into YRI. These paths take precedence over all other paths ({SEARCH_PATHS_FILE} and RubyGems paths). To add a path, call:

      DEFAULT_SEARCH_PATHS.push("/path/to/.yardoc")

  @return [Array<String>] a list of extra search paths @since 0.6.0

SEARCH_PATHS_FILE

  A file containing all paths, delimited by newlines, to search for yardoc databases. @since 0.5.1

### Public Class Methods

new() click to toggle source

    # File lib/yard/cli/yri.rb, line 30
    def initialize
      super
      @cache = {}
      @search_paths = []
      add_default_paths
      add_gem_paths
      load_cache
      @search_paths.uniq!
    end

run(*args) click to toggle source

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

    # File lib/yard/cli/yri.rb, line 28
    def self.run(*args) new.run(*args) end

### Public Instance Methods

description() click to toggle source

    # File lib/yard/cli/yri.rb, line 40
    def description
      "A tool to view documentation in the console like `ri`"
    end

run(*args) click to toggle source

Runs the command-line utility.

@example

    YRI.new.run('String#reverse')

@param [Array<String>] args each tokenized argument

    # File lib/yard/cli/yri.rb, line 49
    def run(*args)
      optparse(*args)

      if ::RbConfig::CONFIG['host_os'] =~ /mingw|win32/
        @serializer ||= YARD::Serializers::StdoutSerializer.new
      else
        @serializer ||= YARD::Serializers::ProcessSerializer.new('less')
      end

      if @name.nil? || @name.strip.empty?
        print_usage
        exit(1)
      elsif object = find_object(@name)
        print_object(object)
      else
        STDERR.puts "No documentation for `#{@name}'"
        exit(1)
      end
    end

### Protected Instance Methods

cache_object(name, path) click to toggle source

Caches the .yardoc file where an object can be found in the {CACHE_FILE} @return [void]

    # File lib/yard/cli/yri.rb, line 81
    def cache_object(name, path)
      return if path == Registry.yardoc_file
      @cache[name] = path

      File.open!(CACHE_FILE, 'w') do |file|
        @cache.each do |key, value|
          file.puts("#{key} #{value}")
        end
      end
    end

find_object(name) click to toggle source

Locates an object by name starting in the cached paths and then searching through any search paths.

@param [String] name the full name of the object @return [CodeObjects::Base] an object if found @return [nil] if no object is found

    # File lib/yard/cli/yri.rb, line 109
    def find_object(name)
      @search_paths.unshift(@cache[name]) if @cache[name]
      @search_paths.unshift(Registry.yardoc_file)

      # Try to load it from in memory cache
      log.debug "Searching for #{name} in memory"
      if obj = try_load_object(name, nil)
        return obj
      end

      log.debug "Searching for #{name} in search paths"
      @search_paths.each do |path|
        next unless File.exist?(path)
        log.debug "Searching for #{name} in #{path}..."
        Registry.load(path)
        if obj = try_load_object(name, path)
          return obj
        end
      end
      nil
    end

print_object(object) click to toggle source

@param [CodeObjects::Base] object the object to print. @return [String] the formatted output for an object.

    # File lib/yard/cli/yri.rb, line 94
    def print_object(object)
      if object.type == :method && object.is_alias?
        tmp = P(object.namespace, (object.scope == :instance ? "#" : "") +
          object.namespace.aliases[object].to_s)
        object = tmp unless YARD::CodeObjects::Proxy === tmp
      end
      object.format(:serializer => @serializer)
    end

print_usage() click to toggle source

Prints the command usage @return [void] @since 0.5.6

    # File lib/yard/cli/yri.rb, line 74
    def print_usage
      log.puts "Usage: yri [options] <Path to object>"
      log.puts "See yri --help for more options."
    end

[Validate]

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