autoload :YAML, 'yaml'

module MRuby

autoload :Source, 'mruby/source'

class Lockfile

class << self

def enable

@enabled = true

end

def disable

@enabled = false

end

def enabled?

@enabled

end

def build(target_name)

instance.build(target_name)

end

def write

instance.write if enabled?

end

def instance

@instance ||= new("#{MRUBY_CONFIG}.lock")

end

end

def initialize(filename)

@filename = filename

end

def build(target_name)

read[target_name] ||= {}

end

def write

locks = {"mruby" => mruby}

locks["builds"] = @builds if @builds

File.write(@filename, YAML.dump(locks))

end

private

def read

@builds ||= if File.exist?(@filename)

YAML.load_file(@filename)["builds"] || {}

else

{}

end

end

def shellquote(s)

if ENV['OS'] == 'Windows_NT'

"\"#{s}\""

else

"'#{s}'"

end

end

def mruby

mruby = {

'version' => MRuby::Source::MRUBY_VERSION,

'release_no' => MRuby::Source::MRUBY_RELEASE_NO,

}

git_dir = "#{MRUBY_ROOT}/.git"

if File.directory?(git_dir)

mruby['git_commit'] = `git --git-dir #{shellquote(git_dir)} --work-tree #{shellquote(MRUBY_ROOT)} rev-parse --verify HEAD`.strip

end

mruby

end

enable

end

end