Class: Ductwork::Pipeline

Inherits:
Record
  • Object
show all
Defined in:
lib/ductwork/models/pipeline.rb

Overview

rubocop:todo Metrics/ClassLength

Defined Under Namespace

Classes: DefinitionError, ReviveError

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.pipeline_definition ⇒ Object (readonly)

Returns the value of attribute pipeline_definition.



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# File 'lib/ductwork/models/pipeline.rb', line 34

def pipeline_definition
  @pipeline_definition
end

Class Method Details

.define(&block) ⇒ Object 



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# File 'lib/ductwork/models/pipeline.rb', line 36

def define(&block)
  if !block_given?
    raise DefinitionError, "Definition block must be given"
  end

  if pipeline_definition
    raise DefinitionError, "Pipeline has already been defined"
  end

  builder = Ductwork::DSL::DefinitionBuilder.new

  block.call(builder)

  @pipeline_definition = builder.complete

  Ductwork.defined_pipelines << name.to_s
end

.inherited(subclass) ⇒ Object 



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# File 'lib/ductwork/models/pipeline.rb', line 22

def self.inherited(subclass)
  super

  subclass.class_eval do
    default_scope { where(klass: name.to_s) }
  end
end

.trigger(*args) ⇒ Object

rubocop:todo Metrics



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# File 'lib/ductwork/models/pipeline.rb', line 54

def trigger(*args) # rubocop:todo Metrics
  if pipeline_definition.nil?
    raise DefinitionError, "Pipeline must be defined before triggering"
  end

  now = Time.current
  node = pipeline_definition.dig(:nodes, 0)
  klass = pipeline_definition.dig(:edges, node, :klass)
  definition = JSON.dump(pipeline_definition)

  pipeline = Record.transaction do # rubocop:todo Metrics/BlockLength
    p = create!(
      klass: name.to_s,
      status: :in_progress
    )
    run = p.runs.create!(
      pipeline_klass: name.to_s,
      status: :in_progress,
      definition: definition,
      definition_sha1: Digest::SHA1.hexdigest(definition),
      triggered_at: now,
      started_at: now
    )
    branch = run.branches.create!(
      pipeline_klass: name.to_s,
      status: :in_progress,
      started_at: now,
      last_advanced_at: now
    )
    step = branch.steps.create!(
      run: run,
      node: node,
      klass: klass,
      status: :in_progress,
      to_transition: :start,
      started_at: now
    )
    Ductwork::Job.enqueue(step, *args)

    p
  end

  Ductwork.logger.info(
    msg: "Pipeline triggered",
    pipeline_id: pipeline.id,
    role: :application
  )

  pipeline
end

Instance Method Details

#current_run ⇒ Object 



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# File 'lib/ductwork/models/pipeline.rb', line 106

def current_run
  runs.in_progress.sole
end

#revive!(duplicate_context: false) ⇒ Object 



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# File 'lib/ductwork/models/pipeline.rb', line 110

def revive!(duplicate_context: false)
  if !halted?
    raise ReviveError, "Cannot revive #{status} pipeline"
  end

  last_run = runs.order(started_at: :desc).first

  if last_run.blank?
    raise ReviveError, "Cannot revive pipeline without previous run"
  end

  now = Time.current
  new_run = last_run.dup
  new_run.triggered_at = now
  new_run.started_at = now
  new_run.status = "in_progress"
  new_run.on_halt_dispatched_at = nil

  Ductwork::Record.transaction do
    lock!
    new_run.save!
    duplicate_successful_branches_and_steps(new_run, last_run, now)
    duplicate_halted_branches_and_steps(new_run, last_run, now)
    conditionally_duplicate_context(last_run, new_run, now, duplicate_context)
    duplicate_all_branch_links(new_run, last_run)
    in_progress!
  end

  self
end