class Pry::Command::InstallCommand

Public Instance Methods

process(name) click to toggle source
# File lib/pry/commands/install_command.rb, line 14
def process(name)
  require 'rubygems/dependency_installer' unless defined? Gem::DependencyInstaller
  command = find_command(name)

  if command_dependencies_met?(command.options)
    output.puts "Dependencies for #{command.name} are met. Nothing to do."
    return
  end

  output.puts "Attempting to install `#{name}` command..."
  gems_to_install = Array(command.options[:requires_gem])

  gems_to_install.each do |g|
    next if Rubygem.installed?(g)
    output.puts "Installing `#{g}` gem..."

    begin
      Gem::DependencyInstaller.new.install(g)
    rescue Gem::GemNotFoundException
      raise CommandError, "Required Gem: `#{g}` not found. Aborting command installation."
    end
  end

  Gem.refresh
  gems_to_install.each do |g|
    begin
      require g
    rescue LoadError
      raise CommandError, "Required Gem: `#{g}` installed but not found?!. Aborting command installation."
    end
  end

  output.puts "Installation of `#{name}` successful! Type `help #{name}` for information"
end