Class: ArgumentParser

Inherits:
Object
  • Object
show all
Defined in:
lib/deadlist/cli/argument_parser.rb

Class Method Summary collapse

Class Method Details

.parse(args, version) ⇒ Object 



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# File 'lib/deadlist/cli/argument_parser.rb', line 2

def self.parse(args, version)
  params = {}
  
  parser = OptionParser.new do |opts|
    opts.banner = "Usage: deadlist [options]"
    opts.separator ""
    opts.separator "Required options:"
    
    opts.on("-i", "--id ID", "ID of show(s) to download (comma-separated for multiple)") do |id|
      params[:ids] = id.split(',').map(&:strip)
    end
    
    opts.on("-f", "--format FORMAT", "Format to download (mp3, flac, ogg)") do |format|
      params[:format] = format.downcase
    end
    
    opts.separator ""
    opts.separator "Other options:"
    
    opts.on("-d", "--directory PATH", "Directory to save show(s) to. Will default to /shows/ in the execution directory") do |dir|
      params[:directory] = dir
    end

    opts.on("-h", "--help", "Show this help") do
      puts opts
      exit
    end
    
    opts.on("-v", "--version", "Show version") do
      puts "deadlist v#{version}"
      exit
    end

    opts.on('-q', '--quiet', 'Run silently') do
      params[:quiet] = true
    end

    opts.on('--dry-run', 'List tracks to be downloaded') do
      params[:dry_run] = true
    end
  end
  
  parser.parse!(args)
  validate_required_params!(params, parser)
  params
rescue OptionParser::InvalidOption => e
  puts "Error: #{e.message}"
  puts parser
  exit(1)
end

.validate_required_params!(params, parser) ⇒ Object 



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# File 'lib/deadlist/cli/argument_parser.rb', line 55

def self.validate_required_params!(params, parser)
  has_ids = params[:ids]&.any?
  has_format = params[:format]

  # If one is provided, both must be provided
  if !has_ids && !has_format
    puts "Error: Arguments are required for DeadList, try --help for more info"
    puts parser
    exit(1)
  elsif has_ids && !has_format
    puts "Error: --format is required when --id is provided"
    puts parser
    exit(1)
  elsif has_format && !has_ids
    puts "Error: --id is required when --format is provided"
    puts parser
    exit(1)
  end
end