Module: ErbHiera::CLI

Defined in:
lib/erb-hiera/cli.rb

Class Method Summary collapse

Class Method Details

.parse ⇒ Object 



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# File 'lib/erb-hiera/cli.rb', line 5

def self.parse
  option_parser = Trollop::Parser.new do
    opt :config,       "specify config file", :type => :string
    opt :hiera_config, "specify hiera config file", :type => :string
    opt :verbose,      "print compiled templates"
    opt :debug,        "print backtrace on error"
    opt :dry_run,      "don't write out files"
  end

  options = Trollop.with_standard_exception_handling(option_parser) do
    # show help if no cli args are provided
    raise Trollop::HelpNeeded if ARGV.empty?

    option_parser.parse ARGV
  end

  # validate cli args
  raise ArgumentError, "config file not specified" unless options[:config_given]
  raise ArgumentError, "config file not readable"  unless File.readable?(options[:config])

  raise ArgumentError, "hiera config file not specified" unless options[:hiera_config_given]
  raise ArgumentError, "hiera config file not readable"  unless File.readable?(options[:hiera_config])

  options
rescue => error
  puts error
  puts error.backtrace if options[:debug]
  exit 1
end