```ruby
require 'tmpdir'
require 'fileutils'
require 'open3'

module Hooks
  def self.global_setup
    ENV.delete 'GPG_AGENT_INFO'

    @home = Dir.mktmpdir
    ENV['HOME'] = @home

    param_file = File.join(File.dirname(__FILE__), 'gpg-params.txt')
    cmd = "gpg --batch --gen-key #{param_file}"
    Open3.popen3 cmd do |stdin, stdout, stderr, wait_thr|
      raise "Failed to generate gpg keys" unless wait_thr.value.success?
    end
  end

  def self.global_teardown
    recursive_delete(@home)
  end

  def self.teardown
    ['.config', '.local'].each do |dir|
      recursive_delete(@home, dir)
    end
  end

  def self.recursive_delete(*components)
    dir = File.join(*components)

    FileUtils.rm_r dir if File.directory? dir
  end
end

at_exit do
  Hooks.global_teardown
end

After do
  Hooks.teardown
end

Hooks.global_setup
```

Enable quick key generation for gpg
user
```ruby
require 'tmpdir'
require 'fileutils'
require 'open3'

module Hooks
  def self.global_setup
    print 'Setting up environment... '

    ENV.delete 'GPG_AGENT_INFO'

    @home = Dir.mktmpdir
    ENV['HOME'] = @home

    param_file = File.join(File.dirname(__FILE__), 'gpg-params.txt')
    cmd = "gpg --debug-quick-random --batch --gen-key #{param_file}"
    Open3.popen3 cmd do |stdin, stdout, stderr, wait_thr|
      raise "Failed to generate GPG keys" unless wait_thr.value.success?
    end

    puts 'done.'
  end

  def self.global_teardown
    recursive_delete(@home)
  end

  def self.teardown
    ['.config', '.local'].each do |dir|
      recursive_delete(@home, dir)
    end
  end

  def self.recursive_delete(*components)
    dir = File.join(*components)

    FileUtils.rm_r dir if File.directory? dir
  end
end

at_exit do
  Hooks.global_teardown
end

After do
  Hooks.teardown
end

Hooks.global_setup
```
assistant