Class: Ufo::Docker::Compiler

Inherits:
Object
  • Object
show all
Defined in:
lib/ufo/docker/compiler.rb

Instance Method Summary collapse

Constructor Details

#initialize(dockerfile) ⇒ Compiler 



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# File 'lib/ufo/docker/compiler.rb', line 3

def initialize(dockerfile)
  @dockerfile = dockerfile
  @erb_file = "#{dockerfile}.erb"
end

Instance Method Details

#compile ⇒ Object 



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# File 'lib/ufo/docker/compiler.rb', line 8

def compile
  return unless File.exist?(@erb_file)

  puts "Compiled #{File.basename(@erb_file).color(:green)} to #{File.basename(@dockerfile).color(:green)}"
  path = "#{Ufo.root}/.ufo/state/data.yml"
  vars = YAML.load_file(path)[Ufo.env] if File.exist?(path)
  vars ||= {}
  result = RenderMePretty.result(@erb_file, vars)
  comment =<<~EOL.chop # remove the trailing newline
    # IMPORTANT: This file was generated from #{File.basename(@erb_file)} as a part of running:
    #
    #     ufo ship
    #
    # To update the FROM statement with the latest base docker image use:
    #
    #    ufo docker base
    #
  EOL
  result = "#{comment}\n#{result}"
  IO.write(@dockerfile, result)
end