def self.show_environment_list
unless @password_dir.include?("/simp_autofiles/gen_passwd")
raise "Password environment directory could not be determined from '#{@password_dir}'"
end
env_dir = File.dirname(@password_dir.split("/simp_autofiles/")[0])
raise "Password environment directory '#{env_dir}' does not exist" unless File.exist?(env_dir)
raise "Password environment directory '#{env_dir}' is not a directory" unless File.directory?(env_dir)
environments = []
begin
Dir.chdir(env_dir) do
environments = Dir.glob('*').sort
end
rescue SystemCallError => err
raise "Error occurred while accessing '#{env_dir}': #{err}"
end
puts "Environments:\n\t#{environments.join("\n\t")}"
puts
end