# class Gem::Commands::InstallCommand

Gem installer command line tool

See ‘gem help install`

### Public Class Methods

new() click to toggle source
Calls superclass method `Gem::Command::new`

    # File lib/rubygems/commands/install_command.rb, line 21
    def initialize
      defaults = Gem::DependencyInstaller::DEFAULT_OPTIONS.merge({
        :format_executable => false,
        :lock              => true,
        :suggest_alternate => true,
        :version           => Gem::Requirement.default,
        :without_groups    => [],
      })

      defaults.merge!(install_update_options)

      super 'install', 'Install a gem into the local repository', defaults

      add_install_update_options
      add_local_remote_options
      add_platform_option
      add_version_option
      add_prerelease_option "to be installed. (Only for listed gems)"

      @installed_specs = []
    end

### Public Instance Methods

execute() click to toggle source

    # File lib/rubygems/commands/install_command.rb, line 152
    def execute
      if options.include? :gemdeps
        install_from_gemdeps
        return # not reached
      end

      @installed_specs = []

      ENV.delete 'GEM_PATH' if options[:install_dir].nil?

      check_install_dir
      check_version

      load_hooks

      exit_code = install_gems

      show_installed

      terminate_interaction exit_code
    end