Class: Bricolage::Application

Inherits:
Object
  • Object
show all
Defined in:
lib/bricolage/application.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Application

Returns a new instance of Application.



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# File 'lib/bricolage/application.rb', line 32

def initialize
  @hooks = Bricolage
  @start_time = Time.now
end

Class Method Details

.install_signal_handlers ⇒ Object 



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# File 'lib/bricolage/application.rb', line 22

def Application.install_signal_handlers
  Signal.trap('PIPE', 'IGNORE')
  PostgresConnection.install_signal_handlers
end

.main ⇒ Object 



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# File 'lib/bricolage/application.rb', line 27

def Application.main
  install_signal_handlers
  new.main
end

Instance Method Details

#build_log_locator(job) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 93

def build_log_locator(job)
  @log_locator_builder.build(
    job_ref: JobNet::JobRef.new(job.subsystem, job.id, '-'),
    jobnet_id: "#{job.subsystem}/#{job.id}",
    job_start_time: @start_time,
    jobnet_start_time: @start_time
  )
end

#error_exit(msg) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 161

def error_exit(msg)
  print_error msg
  exit 1
end

#list_declarations(decls) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 145

def list_declarations(decls)
  decls.each do |decl|
    if decl.have_default_value?
      puts "#{decl.name}\t= #{decl.default_value.inspect}"
    else
      puts decl.name
    end
  end
end

#list_variables(vars) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 139

def list_variables(vars)
  vars.each_variable do |var|
    puts "#{var.name}=#{var.value.inspect}"
  end
end

#load_job(ctx, opts) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 102

def load_job(ctx, opts)
  if opts.file_mode?
    Job.load_file(opts.job_file, ctx)
  else
    usage_exit "no job class given", opts.help if ARGV.empty?
    job_class_id = ARGV.shift
    Job.instantiate(nil, job_class_id, ctx)
  end
rescue ParameterError => ex
  raise if $DEBUG
  usage_exit ex.message, opts.help
end

#main ⇒ Object 



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# File 'lib/bricolage/application.rb', line 37

def main
  opts = GlobalOptions.new(self)
  @hooks.run_before_option_parsing_hooks(opts)
  opts.parse!(ARGV)

  @ctx = Context.for_application(opts.home, opts.job_file, environment: opts.environment, global_variables: opts.global_variables)
  opts.merge_saved_options(@ctx.load_system_options)

  if opts.dump_options?
    opts.option_pairs.each do |name, value|
      puts "#{name}=#{value.inspect}"
    end
    exit 0
  end
  if opts.list_global_variables?
    list_variables @ctx.global_variables.resolve
    exit 0
  end

  job = load_job(@ctx, opts)
  process_job_options(job, opts)
  job.compile

  if opts.list_declarations?
    list_declarations job.declarations
    exit 0
  end
  if opts.list_variables?
    list_variables job.variables
    exit 0
  end
  if opts.dry_run?
    puts job.script_source
    exit 0
  end
  if opts.explain?
    job.explain
    exit 0
  end

  @log_locator_builder = LogLocatorBuilder.for_options(@ctx, opts.log_path_format, opts.log_s3_ds, opts.log_s3_key_format)

  @hooks.run_before_all_jobs_hooks(BeforeAllJobsEvent.new(job.id, [job]))
  @hooks.run_before_job_hooks(BeforeJobEvent.new(job))
  result = job.execute(log_locator: build_log_locator(job))
  @hooks.run_after_job_hooks(AfterJobEvent.new(result))
  @hooks.run_after_all_jobs_hooks(AfterAllJobsEvent.new(result.success?, [job]))
  exit result.status
rescue OptionError => ex
  raise if $DEBUG
  usage_exit ex.message, opts.help
rescue ApplicationError => ex
  raise if $DEBUG
  error_exit ex.message
end

#print_error(msg) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 166

def print_error(msg)
  $stderr.puts "#{program_name}: error: #{msg}"
end

#process_job_options(job, opts) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 115

def process_job_options(job, opts)
  parser = OptionParser.new
  parser.banner = "Usage: #{program_name} #{job.class_id} [job_class_options]"
  job.parsing_options {|job_opt_defs|
    job_opt_defs.define_options parser
    parser.on_tail('--help', 'Shows this message and quit.') {
      puts parser.help
      exit 0
    }
    parser.on_tail('--version', 'Shows program version and quit.') {
      puts "#{APPLICATION_NAME} version #{VERSION}"
      exit 0
    }
    parser.parse!
  }
  unless ARGV.empty?
    msg = opts.file_mode? ? "--job-file and job class argument is exclusive" : "bad argument: #{ARGV.first}"
    usage_exit msg, parser.help
  end
rescue OptionError => ex
  raise if $DEBUG
  usage_exit ex.message, parser.help
end

#program_name ⇒ Object 



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# File 'lib/bricolage/application.rb', line 170

def program_name
  File.basename($PROGRAM_NAME, '.*')
end

#usage_exit(msg, usage) ⇒ Object 



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# File 'lib/bricolage/application.rb', line 155

def usage_exit(msg, usage)
  print_error msg
  $stderr.puts usage
  exit 1
end