Class: Lamma::Code

Inherits:
Object
  • Object
show all
Defined in:
lib/lamma/code.rb

Constant Summary collapse

BUILD_FILE_NAME = 
'build.zip'

Instance Method Summary collapse

Constructor Details

#initialize(function, yaml) ⇒ Code

Returns a new instance of Code.



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# File 'lib/lamma/code.rb', line 10

def initialize(function, yaml)
  @function = function
  @source_path = yaml.fetch('source_path', '.')
  @prebuild = yaml.fetch('prebuild', nil)
  @build_path = yaml.fetch('build_path', nil)
end

Instance Method Details

#to_h ⇒ Object 



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# File 'lib/lamma/code.rb', line 65

def to_h
  {
    zip_file: zip_io
  }
end

#zip_io ⇒ Object 



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# File 'lib/lamma/code.rb', line 17

def zip_io
  return @zip_io if @zip_io

  if h = cached_build_hash
    bp = File.join(build_path, h, BUILD_FILE_NAME)
    Lamma.logger.info "Using cached build: #{bp}"
    @zip_io = File.open(bp, 'rb')
  else
    unless File.directory?(@source_path)
      raise "Source path #{@source_path} doesn't exists"
    end

    # prebuild script
    if @prebuild
      Lamma.logger.info 'Running prebuild script...'
      raise unless system(@prebuild)
    elsif @function.runtime == Lamma::Runtime::PYTHON_27 \
      && File.exist?(File.join(@source_path, 'requirements.txt'))
      raise unless system("pip", "install", "-r", "requirements.txt", "-t", ".")
      # XXX: verbose?
    elsif [Lamma::Runtime::EDGE_NODE_43, Lamma::Runtime::NODE_43].include? @function.runtime \
      && File.exist?(File.join(@source_path, 'package.json'))
      raise unless system("npm", "install", "--production")
    end

    io = Zip::OutputStream.write_buffer do |zio|
      active_paths.each do |path|
        next unless File.file?(path)
        File.open(path) do |source_io|
          zio.put_next_entry(path)
          data = source_io.read
          zio.write(data)
        end
      end
    end

    io.rewind
    if true # XXX: option save_builds?
      File.open(File.join(zipfile_path, BUILD_FILE_NAME), 'w').write(io.read)
      Lamma.logger.info("Saved the build: #{zipfile_path}")
      io.rewind
    end
    @zip_io = io
  end

  @zip_io
end