Module: RequireRb

Defined in:
lib/requirerb.rb

Class Method Summary collapse

Class Method Details

.external_import(name) ⇒ Object 



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# File 'lib/requirerb.rb', line 32

def self.external_import(name)
  if @cache.include? name
    puts "Already cached external module #{name}"
    return @cache[name]
  end

  sym = name.to_sym
  if Module.constants.include? sym
    puts "Already loaded external module #{name}"
    resolved = eval name
    @cache[name] = resolved
    return resolved
  end

  puts "Loading external module #{name}"
  snapshot = Module.constants
  require name
  defined = Module.constants - snapshot
  plucked = []
  resolved = {}
  while defined.length > 0
    todo = defined.pop
    plucked.push todo
    str = todo.to_s
    const = eval str
    next if const.nil?
    resolved[str] = const.class == Module ? Class.new.extend(const) : const
    if const.respond_to? :constants
      defined += const.constants.map {|child| "#{str}::#{child.to_s}"}
    end
  end

  puts "Found #{resolved}"
  @cache[name] = resolved
  plucked
    .select {|item| item.class == Symbol}
    .each {|item| Object.send(:remove_const, item)}
  return resolved
end

.internal_import(dirname, basename) ⇒ Object 



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# File 'lib/requirerb.rb', line 14

def self.internal_import(dirname, basename)
  path = File.join @basepath, dirname, basename
  if @cache.include? @path
    puts "Already cached local module #{path}"
    return @cache[path]
  end

  puts "Loading local module #{path}"
  prev_dirname = @dirname
  prev_path = @path
  @dirname = dirname
  @path = path
  require @path
  @dirname = prev_dirname
  @path = prev_path
  return @cache[path]
end

.main(cmd, args, opts) ⇒ Object 



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# File 'lib/requirerb.rb', line 83

def self.main(cmd, args, opts)
  case cmd
  when 'run'
    run(args, opts)
  else
    raise "Invalid command #{cmd}"
  end
end

.run(args, opts) ⇒ Object 



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# File 'lib/requirerb.rb', line 72

def self.run(args, opts)
  file = args[0]
  abs = "#{Dir.pwd}/#{file}"
  dirname = File.dirname abs
  basename = File.basename abs

  puts "Set default basepath to #{dirname}"
  @basepath = dirname
  internal_import '', basename
end