Class: Mundler::MRuby

Inherits:
Object
  • Object
show all
Defined in:
lib/mundler/mruby.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ MRuby

Returns a new instance of MRuby.



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# File 'lib/mundler/mruby.rb', line 3

def initialize(config)
  @config = config
  @path = File.join(ENV["HOME"], ".mundler", config.hex)

  # Protect just incase, as we're doing an rm_rf
  raise "Something went wrong" if config.hex.length == 0
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/mundler/mruby.rb', line 11

def path
  @path
end

Instance Method Details

#clone_repository ⇒ Object 



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# File 'lib/mundler/mruby.rb', line 17

def clone_repository
  success_indicator = File.join(@path, ".mundler_cloned_successfully")
  return if File.file?(success_indicator)

  mruby_url = @config.mruby[:url]

  version = (
    @config.mruby[:tag] ||
    @config.mruby[:branch] ||
    @config.mruby[:version]
  )

  FileUtils.rm_rf(@path)
  FileUtils.mkdir_p(@path)
  FileUtils.cd(@path)
  git_clone = Proc.new do
    system(
      {
        # The {mundler gem path}/cached_git directory contains a binary called
        # `git` that will run instead of normal git, making a cache of a
        # clone.
        "PATH" => ([cached_git_dir] + ENV["PATH"].split(":")).join(":")
      },
      "git clone #{mruby_url} . >/dev/null 2>&1"
    ) || error_out("Failed to clone mruby: #{mruby_url}")
  end

  if defined?(Bundler) && Bundler.respond_to?(:with_unbundled_env)
    Bundler.with_unbundled_env(&git_clone)
  elsif defined?(Bundler)
    Bundler.with_clean_env(&git_clone)
  else
    git_clone.call
  end

  if version
    system("git reset --hard #{version} >/dev/null 2>&1") ||
      error_out("Failed to set version to #{version}")
  end

  FileUtils.touch(success_indicator)
end

#compile(build_config) ⇒ Object 



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# File 'lib/mundler/mruby.rb', line 70

def compile(build_config)
  logfile = Tempfile.new(['mundler_build', '.log'])

  success_indicator = File.join(@path, ".mundler_built_successfully")
  if File.file?(success_indicator)
    return
  end

  FileUtils.cd(@path)

  cleaned = false
  covered = []
  output_thread = Thread.new do
    loop do
      if cleaned
        Dir.glob(File.join(Dir.pwd, "build", "*", "*", "*")).each do |file|
          pathname = Pathname.new(file)
          directory = pathname.directory? ? pathname.to_s : Pathname.new(file).dirname.to_s
          next if covered.include?(directory)
          covered << directory
          print "\e[32m.\e[0m"
        end
      end
      sleep(0.3)
    end
  end

  clean = Proc.new do
    rake = `which rake`.chomp
    system(
      {
        "MRUBY_CONFIG" => build_config,
        # The {mundler gem path}/cached_git directory contains a binary called
        # `git` that will run instead of normal git, making a cache of a
        # clone.
        "PATH" => ([cached_git_dir] + ENV["PATH"].split(":")).join(":")
      },
      "#{rake} clean >#{logfile.path} 2>&1 && #{rake} deep_clean >#{logfile.path} 2>&1"
    ) || begin
      $stderr.print "\e[31mF\e[0m"
      $stderr.puts "\n\n"
      $stderr.puts File.read(logfile)

      raise Mundler::CompilationError
    end

    cleaned = true
  end

  compile = Proc.new do
    rake = `which rake`.chomp
    system(
      {
        "MRUBY_CONFIG" => build_config,
        # The {mundler gem path}/cached_git directory contains a binary called
        # `git` that will run instead of normal git, making a cache of a
        # clone.
        "PATH" => ([cached_git_dir] + ENV["PATH"].split(":")).join(":")
      },
      "#{rake} >#{logfile.path} 2>&1"
    ) || begin
      $stderr.print "\e[31mF\e[0m"
      $stderr.puts "\n\n"
      $stderr.puts File.read(logfile)

      raise Mundler::CompilationError
    end
  end

  if defined?(Bundler) && Bundler.respond_to?(:with_unbundled_env)
    Bundler.with_unbundled_env(&clean)
    Bundler.with_unbundled_env(&compile)
  elsif defined?(Bundler)
    Bundler.with_clean_env(&clean)
    Bundler.with_clean_env(&compile)
  else
    clean.call
    compile.call
  end

  output_thread.kill
  FileUtils.touch(success_indicator)
ensure
  logfile.close
  logfile.delete
end

#delete_repository ⇒ Object 



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# File 'lib/mundler/mruby.rb', line 13

def delete_repository
  FileUtils.rm_rf(@path)
end

#exec(args) ⇒ Object

Raises:



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# File 'lib/mundler/mruby.rb', line 60

def exec(args)
  raise NotInstalledError unless installed?

  bin_dir = File.join(@path, "bin")
  path = bin_dir + ":" + ENV['PATH']
  Process.spawn({ "PATH" => path }, *args)
  Process.wait
  exit($?.exitstatus) if $?.exitstatus
end

#print_summary ⇒ Object 



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# File 'lib/mundler/mruby.rb', line 157

def print_summary
  FileUtils.cd(@path)
  puts "Libraries:"
  Dir.glob(File.join(Dir.pwd, "**", "*.a")).each { |a| puts "* " + a.split("build/").last }

  binaries = Dir.glob(File.join(Dir.pwd, "build", "host", "bin", "*"))
  if binaries.count > 0
    puts ""
    puts "Binaries:"
    binaries.each { |a| puts "* " + a.split("/").last }
  end
end