class Gem::Commands::InstallCommand - Documentation for Ruby 4.0
Description: class Gem::Commands::InstallCommand: Gem installer command line tool See `gem help install`
Keywords: ruby,class,Gem::Commands::InstallCommand

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# class Gem::Commands::InstallCommand

Gem installer command line tool

See ‘gem help install`

### Public Class Methods

new ()
Source

    # File lib/rubygems/commands/install_command.rb, line 24
    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

Calls superclass method `Gem::Command::new`

### Public Instance Methods

execute ()
Source

    # File lib/rubygems/commands/install_command.rb, line 148
    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_version

      load_hooks

      exit_code = install_gems

      show_installed

      say update_suggestion if eligible_for_update?

      terminate_interaction exit_code
    end