Class: Gem::Commands::RipperTagsCommand

Inherits:
Gem::Command
  • Object
show all
Defined in:
lib/rubygems/commands/ripper_tags_command.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RipperTagsCommand

Returns a new instance of RipperTagsCommand.



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# File 'lib/rubygems/commands/ripper_tags_command.rb', line 5

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

Class Method Details

.index(spec, ui, reindex, emacs, debug) ⇒ Object 



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# File 'lib/rubygems/commands/ripper_tags_command.rb', line 31

def self.index(spec, ui, reindex, emacs, debug)
  if emacs
    tag_filename = 'TAGS'
    format = "emacs"
  else
    tag_filename = 'tags'
    format = "vim"
  end

  return unless File.directory?(spec.full_gem_path)
  tag_file = File.join(spec.full_gem_path, tag_filename)

  if (!File.directory?(tag_filename) && reindex) || (!File.file?(tag_filename) && !File.directory?(tag_filename))
    ui.say "Ripper is generating ctags for #{spec.full_name}"
    riopt = RipperTags.default_options
    riopt.tag_relative = "always"
    riopt.tag_file_name = tag_file
    riopt.format = format
    riopt.recursive = true
    riopt.force = true
    riopt.files = [spec.full_gem_path]
    RipperTags.run riopt
  end
rescue Errno::EACCES
  ui.say "Ripper cannot write to #{tag_file}"
rescue => e
  raise unless ui
  ui.say "Failed processing ctags for #{spec.full_name} (#{e.class})"
  if debug
    ui.say e
  end
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/rubygems/commands/ripper_tags_command.rb', line 19

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