Class: Vanagon::Driver

Inherits:
Object
  • Object
show all
Includes:
Utilities
Defined in:
lib/vanagon/driver.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Utilities

#erb_file, #erb_string, #ex, #find_program_on_path, #get_md5sum, #get_sum, #http_request, #http_request_code, #http_request_generic, #local_command, #remote_ssh_command, #retry_with_timeout, #rsync_from, #rsync_to, #ssh_command

Constructor Details

#initialize(platform, project, options = {}) ⇒ Driver

rubocop:disable Metrics/AbcSize, Metrics/PerceivedComplexity



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# File 'lib/vanagon/driver.rb', line 24

def initialize(platform, project, options = {}) # rubocop:disable Metrics/AbcSize, Metrics/PerceivedComplexity
  @options = options
  @verbose = options[:verbose] || false
  @preserve = options[:preserve] || false
  @workdir = options[:workdir] || Dir.mktmpdir

  @@configdir = options[:configdir] || File.join(Dir.pwd, "configs")
  components = options[:components] || []
  only_build = options[:only_build]

  @platform = Vanagon::Platform.load_platform(platform, File.join(@@configdir, "platforms"))
  @project = Vanagon::Project.load_project(
    project, File.join(@@configdir, "projects"), @platform, components
  )
  @project.settings[:verbose] = options[:verbose]
  @project.settings[:skipcheck] = options[:skipcheck] || false
  if only_build && !only_build.empty?
    filter_out_components(only_build)
  end
  loginit('vanagon_hosts.log')

  @remote_workdir = options[:'remote-workdir']

  engine = pick_engine(options)
  load_engine_object(engine, @platform, options[:target])
end

Instance Attribute Details

#platform ⇒ Object

Returns the value of attribute platform.



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# File 'lib/vanagon/driver.rb', line 14

def platform
  @platform
end

#preserve ⇒ Object

Returns the value of attribute preserve.



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# File 'lib/vanagon/driver.rb', line 14

def preserve
  @preserve
end

#project ⇒ Object

Returns the value of attribute project.



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# File 'lib/vanagon/driver.rb', line 14

def project
  @project
end

#remote_workdir ⇒ Object

Returns the value of attribute remote_workdir.



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# File 'lib/vanagon/driver.rb', line 14

def remote_workdir
  @remote_workdir
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/vanagon/driver.rb', line 14

def target
  @target
end

#verbose ⇒ Object

Returns the value of attribute verbose.



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# File 'lib/vanagon/driver.rb', line 14

def verbose
  @verbose
end

#workdir ⇒ Object

Returns the value of attribute workdir.



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# File 'lib/vanagon/driver.rb', line 14

def workdir
  @workdir
end

Class Method Details

.configdir ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 95

def self.configdir
  @@configdir
end

.logger ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 99

def self.logger
  @@logger
end

Instance Method Details

#build_host_info ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 103

def build_host_info
  { "name" => @engine.build_host_name, "engine" => @engine.name }
end

#camelize(string) ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 85

def camelize(string)
  string.gsub(/(?:^|_)([a-z])?/) do |match|
    (Regexp.last_match[1] || '').capitalize
  end
end

#cleanup_workdir ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 91

def cleanup_workdir
  FileUtils.rm_rf(workdir)
end

#dependencies ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 187

def dependencies
  # Simple sanity check for the project
  if @project.version.nil? || @project.version.empty?
    raise Vanagon::Error, "Project requires a version set, all is lost."
  end

  VanagonLogger.info "creating dependencies list"
  @project.fetch_sources(workdir, retry_count, timeout)
  @project.cli_manifest_json(@platform)
end

#filter_out_components(only_build) ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 51

def filter_out_components(only_build)
  # map each element in the only_build array to it's set of filtered components, then
  # flatten all the results in to one array and set project.components to that.
  @project.components = only_build.flat_map { |comp| @project.filter_component(comp) }.uniq
  if @verbose
    VanagonLogger.info "Only building:"
    @project.components.each { |comp| VanagonLogger.info comp.name }
  end
end

#install_build_dependencies ⇒ Object

rubocop:disable Metrics/AbcSize



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# File 'lib/vanagon/driver.rb', line 114

def install_build_dependencies # rubocop:disable Metrics/AbcSize
  unless list_build_dependencies.empty?
    if @platform.build_dependencies && @platform.build_dependencies.command && !@platform.build_dependencies.command.empty?
      @engine.dispatch("#{@platform.build_dependencies.command} #{list_build_dependencies.join(' ')} #{@platform.build_dependencies.suffix}")
    elsif @platform.respond_to?(:install_build_dependencies)
      @engine.dispatch(@platform.install_build_dependencies(list_build_dependencies))
    else
      raise Vanagon::Error, "No method defined to install build dependencies for #{@platform.name}"
    end
  end
end

#list_build_dependencies ⇒ Object

Returns the set difference between the build_requires and the components to get a list of external dependencies that need to be installed.



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# File 'lib/vanagon/driver.rb', line 110

def list_build_dependencies
  @project.components.map(&:build_requires).flatten.uniq - @project.components.map(&:name)
end

#load_engine_object(engine_type, platform, target) ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 77

def load_engine_object(engine_type, platform, target)
  require "vanagon/engine/#{engine_type}"
  @engine = Object::const_get("Vanagon::Engine::#{camelize(engine_type)}")
    .new(platform, target, remote_workdir: remote_workdir)
rescue StandardError, ScriptError => e
  raise Vanagon::Error.wrap(e, "Could not load the desired engine '#{engine_type}'")
end

#pick_engine(options) ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 61

def pick_engine(options)
  if options[:engine] && !options[:target]
    options[:engine]
  elsif @platform.build_hosts
    'hardware'
  elsif @platform.aws_ami
    'ec2'
  elsif @platform.docker_image
    'docker'
  elsif options[:target]
    'base'
  else
    'always_be_scheduling'
  end
end

#render ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 174

def render
  # Simple sanity check for the project
  if @project.version.nil? || @project.version.empty?
    raise Vanagon::Error, "Project requires a version set, all is lost."
  end

  VanagonLogger.info "rendering Makefile"
  @project.fetch_sources(workdir, retry_count, timeout)
  @project.make_bill_of_materials(workdir)
  @project.generate_packaging_artifacts(workdir)
  @project.make_makefile(workdir)
end

#retry_count ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 20

def retry_count
  @retry_count ||= @project.retry_count || ENV["VANAGON_RETRY_COUNT"] || 1
end

#run ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/PerceivedComplexity



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# File 'lib/vanagon/driver.rb', line 126

def run # rubocop:disable Metrics/AbcSize, Metrics/PerceivedComplexity
  # Simple sanity check for the project
  if @project.version.nil? or @project.version.empty?
    raise Vanagon::Error, "Project requires a version set, all is lost."
  end

  # if no_packaging has been set in the project, don't execute the
  # whole makefile. Instead just perform the installation.
  make_target = ''
  if @project.no_packaging
    make_target = "#{@project.name}-project"
  end

  @engine.startup(workdir)
  VanagonLogger.info "Target is #{@engine.target}"
  Vanagon::Utilities.retry_with_timeout(retry_count, timeout) do
    install_build_dependencies
  end
  @project.fetch_sources(workdir, retry_count, timeout)

  @project.make_makefile(workdir)
  @project.make_bill_of_materials(workdir)
  # Don't generate packaging artifacts if no_packaging is set
  @project.generate_packaging_artifacts(workdir) unless @project.no_packaging
  @project.save_manifest_json(@platform, workdir)
  @engine.ship_workdir(workdir)
  @engine.dispatch("(cd #{@engine.remote_workdir}; #{@platform.make} #{make_target})")
  @engine.retrieve_built_artifact(@project.artifacts_to_fetch, @project.no_packaging)
  @project.publish_yaml_settings(@platform)

  if %i[never on-failure].include? @preserve
    @engine.teardown
    cleanup_workdir
  end
rescue StandardError => e
  if [:never].include? @preserve
    @engine.teardown
    cleanup_workdir
  end
  VanagonLogger.error(e)
  VanagonLogger.error e.backtrace.join("\n")
  raise e
ensure
  if ["hardware", "ec2"].include?(@engine.name)
    @engine.teardown
  end
end

#timeout ⇒ Object 



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# File 'lib/vanagon/driver.rb', line 16

def timeout
  @timeout ||= @project.timeout || ENV["VANAGON_TIMEOUT"] || 7200
end