Module: MRubyTools::CLI

Defined in:
lib/mruby_tools.rb

Class Method Summary collapse

Class Method Details

.args(argv = ARGV) ⇒ Object 



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# File 'lib/mruby_tools.rb', line 108

def self.args(argv = ARGV)
  rb_files = []
  out_file = nil
  c_file = nil
  mruby_dir = nil
  verbose = false
  help = false

  while !argv.empty?
    arg = argv.shift
    if arg == '-o'
      out_file = argv.shift
      raise "no out_file provided with -o" unless out_file
      raise "#{out_file} is misnamed" if File.extname(out_file) == '.rb'
    elsif arg == '-c'
      c_file = File.open(argv.shift || 'generated.c', "w")
    elsif arg == '-v'
      verbose = true
    elsif arg == '-h'
      help = true
    elsif arg == '-m'
      mruby_dir = argv.shift
      raise "no mruby_dir provided with -m" unless mruby_dir
    else
      rb_files << arg
    end
  end

  c_file ||= Tempfile.new(['mrbt-', '.c'])

  { verbose: verbose,
    help: help,
    c_file: c_file,
    out_file: out_file || 'outfile',
    rb_files: rb_files,
    mruby_dir: mruby_dir }
end

.usage(msg = nil) ⇒ Object 



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# File 'lib/mruby_tools.rb', line 96

def self.usage(msg = nil)
  puts "  USAGE: mrbt file1.rb file2.rb ...\nOPTIONS: -o outfile     (provide a name for the standalone executable)\n     -c generated.c (leave the specified C file on the filesystem)\n     -m mruby_dir   (provide the dir for mruby src)\n     -v             (verbose)\n"
  warn "  ERROR: #{msg}" if msg
  exit(msg ? 1 : 0)
end