Class: Anvil::Engine

Inherits:
Object
  • Object
show all
Extended by:
Helpers
Defined in:
lib/anvil/engine.rb

Class Method Summary collapse

Methods included from Helpers

anvil_metadata_dir, is_url?, json_decode, json_encode, read_anvil_metadata, write_anvil_metadata

Class Method Details

.build(source, options = {}) ⇒ Object 



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# File 'lib/anvil/engine.rb', line 14

def self.build(source, options={})
  if options[:pipeline]
    old_stdout = $stdout.dup
    $stdout = $stderr
  end

  source ||= "."

  buildpack = options[:buildpack] || read_anvil_metadata(source, "buildpack")

  build_options = {
    :buildpack => prepare_buildpack(buildpack),
    :type      => options[:type] || "tgz"
  }

  builder = if is_url?(source)
    Anvil::Builder.new(source)
  else
    manifest = Anvil::Manifest.new(File.expand_path(source),
      :cache  => read_anvil_metadata(source, "cache"),
      :ignore => options[:ignore])
    upload_missing manifest

    manifest
  end

  slug_url = builder.build(build_options) do |chunk|
    print chunk
  end

  unless is_url?(source)
    write_anvil_metadata source, "buildpack", buildpack
    write_anvil_metadata source, "cache",     manifest.cache_url
  end

  old_stdout.puts slug_url if options[:pipeline]

  slug_url
end

.prepare_buildpack(buildpack) ⇒ Object 



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# File 'lib/anvil/engine.rb', line 58

def self.prepare_buildpack(buildpack)
  buildpack = buildpack.to_s
  if buildpack == ""
    buildpack
  elsif is_url?(buildpack)
    buildpack
  elsif buildpack =~ /\A\w+\/\w+\Z/
    "http://codon-buildpacks.s3.amazonaws.com/buildpacks/#{buildpack}.tgz"
  elsif File.exists?(buildpack) && File.directory?(buildpack)
    manifest = Anvil::Manifest.new(buildpack)
    upload_missing manifest, "buildpack"
    manifest.save
  else
    raise Anvil::Builder::BuildError.new("unrecognized buildpack specification: #{buildpack}")
  end
end

.upload_missing(manifest, title = "app") ⇒ Object 



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# File 'lib/anvil/engine.rb', line 75

def self.upload_missing(manifest, title="app")
  print "Checking for #{title} files to sync... "
  missing = manifest.missing
  puts "done, #{missing.length} files needed"

  return if missing.length.zero?

  queue = Queue.new
  total_size = missing.map { |hash, file| file["size"].to_i }.inject(&:+)

  display = Thread.new do
    Progress.start "Uploading", total_size
    while (msg = queue.pop).first != :done
      case msg.first
        when :step then Progress.step msg.last.to_i
      end
    end
    Progress.stop
  end

  if missing.length > 0
    manifest.upload(missing.keys) do |file|
      queue << [:step, file["size"].to_i]
    end
    queue << [:done, nil]
  end

  display.join
end

.version ⇒ Object 



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# File 'lib/anvil/engine.rb', line 54

def self.version
  puts Anvil::VERSION
end