class Dotenv::EnvTemplate

def create_template
  File.open(@env_file, "r") do |env_file|
    File.open("#{@env_file}.template", "w") do |env_template|
      env_file.each do |line|
        if is_comment?(line)
          env_template.puts line
        elsif (var = var_defined?(line))
          if line.match(EXPORT_COMMAND)
            env_template.puts "export #{var}=#{var}"
          else
            env_template.puts "#{var}=#{var}"
          end
        elsif line_blank?(line)
          env_template.puts
        end
      end
    end
  end
end

def initialize(env_file)
  @env_file = env_file
end

def is_comment?(line)
  line.strip.start_with?("#")
end

def line_blank?(line)
  line.strip.length.zero?
end

def var_defined?(line)
  match = Dotenv::Parser::LINE.match(line)
  match && match[:key]
end