Module: Lkml::CLI

Defined in:
lib/lkml/cli.rb

Class Method Summary collapse

Class Method Details

.parse_args(argv) ⇒ Object

Raises:

  • (OptionParser::MissingArgument) 


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# File 'lib/lkml/cli.rb', line 13

def parse_args(argv)
  options = { log_level: Logger::WARN }
  parser = OptionParser.new do |opts|
    opts.banner = "usage: lkml [-v|--verbose] FILE"

    opts.on("-v", "--verbose", "Increase logging verbosity to debug") do
      options[:log_level] = Logger::DEBUG
    end
  end
  parser.parse!(argv)

  raise OptionParser::MissingArgument, "FILE is required" if argv.empty?

  options[:file_path] = argv[0]
  options
end

.run(argv = ARGV) ⇒ Object 



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# File 'lib/lkml/cli.rb', line 30

def run(argv = ARGV)
  logger = Logger.new($stderr)
  logger.level = Logger::WARN

  opts = parse_args(argv.dup)

  logger.level = opts[:log_level]

  File.open(opts[:file_path], "r:UTF-8") do |file|
    result = Lkml.load(file)
    puts JSON.pretty_generate(result)
  end
end