Module: PinterestURLNormalizer::CLI

Defined in:
lib/pinterest_url_normalizer/cli.rb

Overview

Command-line interface for the gem executable.

Class Method Summary collapse

Class Method Details

.run(arguments, input: $stdin, output: $stdout, error: $stderr) ⇒ Object 



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# File 'lib/pinterest_url_normalizer/cli.rb', line 12

def run(arguments, input: $stdin, output: $stdout, error: $stderr)
  json_output = false
  parser = OptionParser.new do |options|
    options.banner = "Usage: pinterest-url-normalizer [--json] [URL ...]"
    options.on("--json", "Emit JSON Lines") { json_output = true }
  end

  urls = arguments.dup
  begin
    parser.parse!(urls)
  rescue OptionParser::ParseError => exception
    error.puts exception.message
    error.puts parser
    return 2
  end

  urls = input.each_line.map(&:strip).reject(&:empty?) if urls.empty?
  if urls.empty?
    error.puts parser
    return 2
  end

  exit_code = 0
  urls.each do |url|
    begin
      parsed = PinterestURLNormalizer.parse(url)
      if json_output
        output.puts JSON.generate(parsed.to_h.compact)
      else
        output.puts parsed.normalized_url
      end
    rescue Error => exception
      exit_code = 1
      if json_output
        output.puts JSON.generate(
          input: url,
          error: { code: exception.code, message: exception.message }
        )
      else
        error.puts "#{exception.code}: #{exception.message}: #{url}"
      end
    end
  end
  exit_code
end