Contents

require 'rubygems/command'
require 'ripper-tags'

class Gem::Commands::RipperTagsCommand < Gem::Command
  def initialize
    super 'ripper_tags', 'Generate ctags for gems with Ruby/Ripper parser'

    add_option("--emacs", "Generate Emacs TAGS instead Vim tags") do |value, options|
      options[:emacs] = true
    end
    add_option("--reindex", "Reindex all tags again") do |value, options|
      options[:reindex] = true
    end
    add_option("--debug", "Enable debugging output") do |value, options|
      options[:debug] = true
    end
  end

  def execute
    if Gem::Specification.respond_to?(:each)
      Gem::Specification
    else
      Gem.source_index.gems.values
    end.each do |spec|
      self.class.index(spec, options[:reindex], options[:emacs]) do |message|
        say message
      end
    end
  rescue Exception => e
    if options[:debug] || ENV['RIPPER_TAGS_DEBUG']
      puts e.message
      puts e.backtrace.join("\n")
    end
    raise e
  end

  def self.index(spec, reindex, emacs)
    return unless File.directory?(spec.full_gem_path)

    if emacs
      tag_filename = 'TAGS'
      format = "emacs"
    else
      tag_filename = 'tags'
      format = "vim"
    end

    Dir.chdir(spec.full_gem_path) do
      if (!File.directory?(tag_filename) && reindex) || (!File.file?(tag_filename) && !File.directory?(tag_filename))
        yield "Ripper is generating ctags for #{spec.full_name}" if block_given?
        riopt = RipperTags.default_options
        riopt.tag_file_name = "./#{tag_filename}"
        riopt.format = format
        riopt.recursive = true
        riopt.force = true
        RipperTags.run riopt
      end

      target = 'lib/bundler/cli.rb'
      if File.writable?(target) && !File.read(target).include?('load_plugins')
        yield "Injecting gem-ripper-tags into #{spec.full_name}" if block_given?
        File.open(target, 'a') do |f|
          f.write "\nGem.load_plugins rescue nil\n"
        end
      end

    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
gem-ripper-tags-optional-1.0.8	lib/rubygems/commands/ripper_tags_command.rb
gem-ripper-tags-optional-1.0.7	lib/rubygems/commands/ripper_tags_command.rb