Module: Rum

Defined in:
lib/rumrunner.rb,
lib/rumrunner/init.rb,
lib/rumrunner/docker.rb,
lib/rumrunner/version.rb,
lib/rumrunner/manifest.rb,
lib/rumrunner/application.rb,
lib/rumrunner/dsl_definition.rb

Defined Under Namespace

Modules: DSL, Docker Classes: Application, Error, Manifest

Constant Summary collapse

VERSION = 
"0.2.4"

Class Method Summary collapse

Class Method Details

.init(input = nil, stdin = $stdin, stdout = $stdout, stderr = $stderr) ⇒ Object 



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# File 'lib/rumrunner/init.rb', line 5

def init(input = nil, stdin = $stdin, stdout = $stdout, stderr = $stderr)
  # Get image name from stdin
  stderr.write "Docker image name [#{default = File.split(Dir.pwd).last}]: "
  input ||= stdin.gets.chomp
  image   = Docker::Image.parse(input.empty? ? default : input)

  # Begin Rumfile
  stdout.write "#!/usr/bin/env ruby\n"
  stdout.write "rum :\"#{image.family}\" do\n"

  # Put stages
  if File.exists? "Dockerfile"
    stages = File.read("Dockerfile").scan(/^FROM .*? AS (.*?)$/).flatten
    stages.reverse.zip(stages.reverse[1..-1]).reverse.each do |stage, dep|
      if dep.nil?
        stdout.write "  stage :\"#{stage}\"\n"
      else
        stdout.write "  stage :\"#{stage}\" => :\"#{dep}\"\n"
      end
    end unless stages.empty?
  end

  # Fin
  stdout.write "end\n"
end