Module: MRubyTools

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 22

def self.args(argv = ARGV)
  rb_files = []
  outfile = nil
  cfile = nil
  verbose = false

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

  { verbose: verbose,
    cfile: cfile,
    outfile: outfile || 'outfile',
    rb_files: rb_files }
end

.mruby_src_dir(env_var = 'MRUBY_SRC') ⇒ Object 



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# File 'lib/mruby_tools.rb', line 13

def self.mruby_src_dir(env_var = 'MRUBY_SRC')
  mruby_src_dir = ENV[env_var]
  raise "env: MRUBY_SRC is required" unless mruby_src_dir
  raise "bad MRUBY_SRC #{mruby_src_dir}" unless File.directory? mruby_src_dir
  mruby_inc_dir = File.join(mruby_src_dir, 'include')
  raise "bad MRUBY_SRC #{mruby_inc_dir}" unless File.directory? mruby_inc_dir
  mruby_src_dir
end

.rb2c(rb_filename, indent: ' ') ⇒ Object 



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# File 'lib/mruby_tools.rb', line 2

def self.rb2c(rb_filename, indent: '  ')
  c_str = File.read(rb_filename)
  size = c_str.size
  c_str = c_str.gsub("\n", '\n').gsub('"', '\"')
  c_str = File.read(rb_filename).gsub("\n", '\n').gsub('"', '\"')
  [ "/* #{rb_filename} */",
    'mrb_load_nstring(mrb, "' + c_str + '", ' + "#{size});",
    "check_exc(mrb, \"#{rb_filename}\");",
  ].map { |s| indent + s }.join("\n")
end